WO2004096887A1 - 反応性珪素基含有有機重合体 - Google Patents
反応性珪素基含有有機重合体 Download PDFInfo
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- WO2004096887A1 WO2004096887A1 PCT/JP2004/005956 JP2004005956W WO2004096887A1 WO 2004096887 A1 WO2004096887 A1 WO 2004096887A1 JP 2004005956 W JP2004005956 W JP 2004005956W WO 2004096887 A1 WO2004096887 A1 WO 2004096887A1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/10—Materials in mouldable or extrudable form for sealing or packing joints or covers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
- C08G65/2642—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds characterised by the catalyst used
- C08G65/2645—Metals or compounds thereof, e.g. salts
- C08G65/2663—Metal cyanide catalysts, i.e. DMC's
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/336—Polymers modified by chemical after-treatment with organic compounds containing silicon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
- C08G77/46—Block-or graft-polymers containing polysiloxane sequences containing polyether sequences
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/02—Polyalkylene oxides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L31/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid; Compositions of derivatives of such polymers
- C08L31/02—Homopolymers or copolymers of esters of monocarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2200/00—Chemical nature of materials in mouldable or extrudable form for sealing or packing joints or covers
- C09K2200/06—Macromolecular organic compounds, e.g. prepolymers
- C09K2200/0645—Macromolecular organic compounds, e.g. prepolymers obtained otherwise than by reactions involving carbon-to-carbon unsaturated bonds
- C09K2200/0657—Polyethers
Definitions
- the present invention relates to polymers. More specifically, the present invention relates to a polymer containing a polyether which is cured by a reaction of a reactive silicon group.
- Polyethers having a reactive silicon group in the molecule are manufactured and sold, for example, by Kanegafuchi Chemical Industry Co., Ltd. under the trade name Kaneri MS Polymer. According to JP-A-8-231707, JP-A-8-176429, JP-A-8-295804, etc., polyether is obtained by polymerization using a double metal cyanide complex catalyst.
- the reactive silicon group-containing polyether and its composition It is described that the total amount of ionic impurities is preferably 50 ppm or less, more preferably 30 ppm or less, and further preferably 20 ppm or less, in order to reduce the storage stability of the product.
- a composition containing a reactive silicon group-containing polyether may cause a red coloring problem, which is solved. I didn't. Since the composition containing a reactive silicon group is used as a sealant / adhesive, its appearance is desirably colorless and transparent or light-colored and transparent. There was a problem. Disclosure of the invention
- An object of the present invention is to solve the above-mentioned coloring problem.
- the present invention relates to a polymer comprising:
- a reactive silicon group-containing organic polymer containing Co and having a content of 0.5 ppm or less is a reactive silicon group-containing polyether (A) or a mixture of the reactive silicon group-containing polyether (A) and the butyl polymer (B) ( The polymer according to 1).
- Reactive silicon group-containing polyether Obtained by reacting an isocyanate group-containing silane compound with a hydroxyl-containing polyether containing 1S Co and having a content of 0.5 pm or less in the molecule.
- Reactive silicon group-containing polyether A polyisocyanate compound is reacted with a polyether containing an ICo and having a hydroxyl group in a molecule having a content of 0.5 ppm or less, The polymer according to (2), which is obtained by reacting a group-containing silane compound.
- Reactive silicon group-containing polyether It is produced from an unsaturated group-containing polyether having a power of Co and having a content of 0.5 ppm or less as a starting material. The polymer as described.
- Reactive silicon group-containing polyether A hydrogen group-containing silane compound is reacted with a polyether containing ICo and having an unsaturated group in a molecule having a content of 0.5 ppm or less.
- the polymer according to (5) which is obtained by:
- Reactive silicon group-containing polyether A mercapto group-containing silane compound is reacted with a polyether having an ICo content of 0.5 ppm or less and having an unsaturated group in the molecule.
- the polymer according to (5) The polymer according to (5).
- Vinyl polymer (B) 1 The polymer according to any one of (2) to (9), which is a reactive silicon group-containing bullet polymer.
- the oxyalkylene polymer constituting the polymerization main chain in the component (A) of the present invention is represented by the following general formula (I):
- R 1 is a divalent alkylene group having 1 to 4 carbon atoms
- oxypropylene is preferred from the viewpoint of easy availability.
- Polymers are preferred.
- the oxypropylene polymer may be linear or branched, or may be a mixture thereof. Further, other monomer units may be contained, but it is preferred that the monomer units represented by the above formula be present in the polymer in an amount of 50% by weight or more, preferably 80% by weight or more.
- the reactive silicon group-containing oxyalkylene polymer as the component (A) of the present invention is preferably obtained by introducing a reactive silicon group into an oxyalkylene polymer having a functional group. .
- the molecular weight of the oxyalkylene polymer is preferably 6,000 or more, more preferably 10,000 or more, from the viewpoint of elongation. Further, the molecular weight distribution (Mw / Mn) is preferably small in molecular weight distribution (MwZMn) of 1.5 or less from the viewpoint of viscosity and workability, but is not necessarily limited, and those having 1.5 or more can be used.
- Such an oxypropylene-based polymer can be obtained, for example, by a method using a double metal cyanide complex catalyst as exemplified in JP-B-46-27250 and JP-B-59-15336. it can.
- Reactive silicon group-containing oxyalkylene polymers obtained using a double metal cyanide complex catalyst are described in, for example, JP-A-3-47825, JP-A-3-72527, JP-A-2003-55451 and the like. Have been.
- the reactive silicon group-containing oxyalkylene polymer as the component (A) of the present invention contains Co and has a content of 0.5 ppm or less.
- Co is derived from a residue from a double metal cyanide complex catalyst used as a polymerization catalyst for producing an oxypropylene-based polymer.
- the introduction of the reactive silicon group may be performed by a known method. For example, the following methods are available.
- An oxyalkylene polymer having a functional group such as a hydroxyl group at the terminal is reacted with an organic compound having an active group and an unsaturated group reactive to the functional group, or an unsaturated group.
- an oxyalkylene polymer containing an unsaturated group is obtained.
- the obtained reaction product is reacted with hydrosilane having a reactive silicon group to effect hydrosilylation.
- a oxyalkylene polymer having a functional group such as a hydroxyl group, an epoxy group, or an isocyanate group (hereinafter referred to as a Y functional group) at a terminal thereof is reacted with a functional group having a reactivity with the Y functional group (hereinafter referred to as a Y functional group).
- a functional group) and a compound having a reactive silicon group are referred to as a Y functional group.
- Examples of the silicon compound having the ⁇ ′ functional group include ⁇ - (2-aminoethyl) aminopropyl trimethoxysilane, ⁇ - (2-aminoethyl) aminopropylmethyldimethoxysilane, ⁇ -aminopropyltriethoxysilane and the like.
- Amino group-containing silanes such as ⁇ -mercaptopropyltrimethoxysilane, 1-mercaptopropylmethyldimethoxysilane; ⁇ -glycidoxypropyltrimethoxysilane, i3- (3,4-epoxy Epoxy silanes such as cyclohexyl) ethyltrimethoxysilane; and butyl-containing unsaturated groups such as butyltriethoxysilane, ⁇ -methacryloyloxypropyltrimethoxysilane, ⁇ -acryloyloxypropylmethyldimethoxysilane, and the like.
- chlorine such as ⁇ -chloro mouth propyl trimethoxysilane Atom-containing silanes
- isocyanate-containing silanes such as ⁇ -isocyanate propyl triethoxy silane, y-isocyanate propyl methyl dimethoxy silane, ⁇ -isocyanate propylinoletrimethoxy silane
- Specific examples include, but are not limited to, hydrosilanes such as toxic silane, methyl ethoxy silane, and triethoxy silane.
- the number average molecular weight of the component (II) in the present specification is as follows.
- the end group concentration is directly measured by the titration analysis based on the principle of measuring the hydroxyl value according to JISK15557 and the principle of measuring the element number as in JISK0770, and the polyether oligomer is measured. It is defined as the number average molecular weight determined in consideration of the structure.
- a relative measurement method of the number average molecular weight it is also possible to prepare a calibration curve of the molecular weight in terms of polystyrene obtained by general GPC measurement and the above-mentioned terminal group molecular weight, and convert the GPC molecular weight into the terminal group molecular weight. .
- M wZM n was determined by GPC measurement.
- the reactive silicon group contained in the reactive silicon group-containing oxyalkylene polymer as the component (A) of the present invention is, for example, a compound represented by the following general formula (II):
- R 2 is a group selected from a substituted or unsubstituted monovalent organic group having 1 to 24 carbon atoms or a triorganosiloxy group, and X is a hydroxyl group or a different or same type of hydrolysis.
- A is an integer of 0, 1 or 2
- b is an integer of 0, 1, 2 or 3, and satisfies (sum of a) + b ⁇ 1.
- m is an integer of 0 to 19
- hydrolyzable group in the formula (II) include, for example, a halogen atom, a hydrogen atom, an alkoxy group, an acyloxy group, a ketoximate group, an amino group, an amide group, an aminooxy group, a mercapto group and an alkenyloxy group.
- a halogen atom a hydrogen atom
- an alkoxy group such as a methoxy group and an ethoxy group is preferred from the viewpoint of mild hydrolysis.
- the hydrolyzable group or hydroxyl group can be bonded to one silicon atom in the range of 1 to 3; (sum of c) + (1 is preferably in the range of 1 to 5.) When two or more groups or hydroxyl groups are bonded to the reactive silicon group, they may be the same or different.
- R 2 in the formula (II) include, for example, an alkyl group such as a methyl group and an ethyl group, a cycloalkyl group such as a cyclohexyl group, an aryl group such as a phenyl group, and an aralkyl group such as a benzyl group. And the like. Further, R 2 may be a triorganosiloxy group. Of these, a methyl group is particularly preferred.
- the number of silicon atoms forming the reactive silicon group may be one, or may be two or more.In the case of silicon atoms linked by a siloxane bond or the like, about 20 atoms are present. Moyore.
- the reactive silicon group include a trimethoxysilyl group, a triethoxysilyl group, a triisopropoxysilyl group, a methyldimethoxysilyl group, a methylethoxysilyl group, and a methyldiisopropoxysilyl group.
- a methyldimethoxysilyl group is particularly preferred in view of reactivity, storage stability, mechanical properties after curing, and the like.
- the vinyl polymer as the component (B) of the present invention is a monomer unit of an alkyl acrylate monomer unit in which the main component of the monomer unit has an alkyl group having 1 to 24 carbon atoms (or) methacrylic acid It is a polymer composed of alkyl ester monomer units.
- the reactive silicon group may or may not be bonded to the molecule.
- a polymer having an alkyl group having 1 to 24 carbon atoms as a monomer unit in the polymer is represented by the general formula (IV):
- R 4 represents a hydrogen atom or a methyl group
- R 3 represents an alkyl group having 1 to 24 carbon atoms.
- R 3 in the general formula (IV) includes, for example, methyl group, ethyl group, propyl group, n-butylinole group, t-butyl group, 2-ethylhexynole group, noninole group, laurinole group, tridecyl group, cetyl And alkyl groups having 1 to 24 carbon atoms such as a group, a stearyl group and a biphenyl group.
- the monomer represented by the monomer unit of the general formula (IV) may be one kind or two or more kinds.
- alkyl acrylate monomer conventionally known ones can be widely used.
- methacrylic acid ester monomer unit conventionally known ones can be widely used, and examples thereof include methyl methacrylate, ethyl methacrylate, ⁇ -propyl methacrylate, ⁇ -butyl methacrylate, isobutyl methacrylate, and tert-butyl methacrylate.
- the molecular chain of the polymer (B) has a force S substantially composed of one or more alkyl acrylate monomer units and / or alkyl methacrylate monomer units.
- the term “consisting of the monomer units” means that the ratio of the alkyl acrylate monomer unit and the alkyl or methacrylate monomer unit present in the polymer (B) is 50% by weight. / 0 , preferably 70% by weight or more.
- an alkyl acrylate monomer unit Z or an alkyl methacrylate monomer unit is added.
- a monomer unit copolymerizable with these may be contained.
- acrylic acid such as acrylic acid and methacrylic acid
- acrylamide, methacrylamide, amide group such as N-methylol acrylamide, N-methyl methacrylamide, glycidyl acrylate, glycidyl methacrylate
- Monomers containing an amino group such as an epoxy group, acetylaminoethyl acrylate, acetylaminoethyl methacrylate, and aminoethyl vinyl ether
- polyoxyethylene groups such as polyoxyethylene acrylate and polyoxyethylene methacrylate
- monomer units such as acrylonitrile, styrene, a-methylstyrene, alkyl vinyl ether, vinyl chloride, butyl acetate, butyl propionate, and ethylene.
- the monomer composition of the polymer (B) is selected depending on the application and purpose. For example, for the purpose or application requiring strength, a resin having a relatively high glass transition temperature is desirable. It is preferable to select a monomer composition that gives a polymer (B) having a glass transition temperature of 20 ° C. or higher. On the other hand, when importance is placed on viscosity, workability, low-temperature characteristics, etc., those having a relatively low glass transition temperature are preferred.
- the molecular weight of the polymer (B) component those having a number average molecular weight of 500 to 100,000 in terms of polystyrene in GPC can be used.
- the polymer (B) can be obtained by a usual bullet polymerization method or the like. Vinyl polymerization can be carried out in a solvent.
- the solvent used include aromatic solvents such as toluene and xylene, alcohol solvents such as n-propyl alcohol, isopropyl alcohol, n-butanol, isobutanol, n-hexanol and cyclohexanol, ethyl acetate, and acetic acid.
- Ethyl solvents such as butyl, methyl isobut And ketone solvents such as tyl ketone.
- the polymerization reaction may be performed in a plasticizer.
- the plasticizer used as the polymerization solvent may be used as it is as the plasticizer component in the blend. Further, the polymerization reaction may be carried out in the reactive silicon group-containing polyether (A), or in its precursor polyether having an unsaturated group in the molecule or polyether having a hydroxyl group in the molecule. Polymerization can be carried out by adding the monomer, a radical initiator, a chain transfer agent, and the like, and reacting the mixture at 50 to 150 ° C.
- radical initiator examples include azobisisobutyl-tolyl and benzoyl peroxide.
- chain transfer agent examples include mercaptans such as n-dodecylmercaptan, t-dodecylmercaptan, and laurylmercaptan, and halogen-containing compounds. can give.
- an alkyl acrylate monomer such as Z or metharyl
- a Y group a compound having a functional group capable of reacting with a reactive silicon group and a Y group (hereinafter referred to as a Y group) (for example, an isocyanate group and one Si ( OCH 3 ) a compound having three groups) to introduce a reactive silicon group at the molecular terminal.
- An azobis nitrile compound or disulfide compound containing a reactive silicon group is used as an initiator to polymerize an alkyl acrylate monomer and / or an alkyl methacrylate monomer to form a reactive silicon group at the molecular end. How to introduce groups,
- Examples of the mercaptan containing a reactive silicon group used as the chain transfer agent described in (i) include ⁇ -mercaptopropyl trimethoxysilane, ⁇ -mercaptopropylmethyldimethoxysilane, ⁇ -mercaptopropyltriethoxysilane, and the like. Can be.
- Examples of the ⁇ group and the ⁇ group described in the above include various combinations of groups.
- an ⁇ group may be an amino group, a hydroxyl group or a carboxylic acid group, and a Y ′ group may be an isocyanate group. I can give it.
- the ⁇ group is an aryl group and the Y 'group is And hydrogenated silicon groups ( ⁇ —Si).
- the Y group and the Y 'group can be bonded by a hydrosilylation reaction in the presence of a VIII group transition metal.
- Examples of the azobis nitrile compound or disulfide compound containing a reactive silicon group described in (iii) include those described in JP-A-60-23405 and JP-A-62-70405. Examples thereof include an azobis nitrile compound containing an alkoxysilyl group and a disulfide compound containing an alkoxysilyl group.
- Examples of the method (iv) include an atom transfer radical polymerization method described in JP-A-09-272714.
- R 2 , R 4 , X, a, b, and m are as defined above
- ⁇ -methacryloxypropyltrimethoxysilane for example, ⁇ -methacryloxypropyltrimethoxysilane, ⁇ -methacryloxypropylmethyldimethoxysilane, ⁇ — methacryloxydiethoxyphenyl Cipro building triethoxysilane of .gamma.-methacryloxypropyl alkyl polyalkoxysilane; ⁇ - Akurirokishi Puropirutorime Tokishishiran, .gamma.
- the type of the reactive silicon group of the acrylic polymer (II) a silicon group having 1 to 3 reactive groups on the silicon can be used.
- the weight ratio (A) / ( ⁇ ) of the polymer ( ⁇ ) and the polymer ( ⁇ ) in the present invention can be produced in any wide range. In general, as (A) / ( ⁇ ) becomes relatively small, mechanical strength and high weather resistance are obtained.
- the polymer of the present invention can be added with various compounding agents according to the desired physical properties.
- the polymer of the present invention may contain a curing catalyst.
- a polymer having a crosslinkable silyl group is crosslinked and cured by forming a siloxane bond in the presence or absence of various conventionally known condensation catalysts.
- As the properties of the cured product a wide range from rubbery to resinous can be prepared depending on the molecular weight of the polymer and the main chain skeleton.
- condensation catalysts include, for example, dibutyltin dilaurate, dibutyltin Diacetate, dibutyltin getyl hexanolate, dibutyltin dioctate, dibutyltin dimethylmalate, dibutyltin getylmalate, dibutyltin dibutylmalate, dibutyltin diisooctylmalate, dibutyltin ditridecylmalate, dibutyltin dibenzyl maleate, Dialkynole tin dicarboxylates such as dibutyltin tin maleate, dioctyltin diacetate, dioctyltin distearate, dioctyltin dilaurate, dioctyltin getylmalate, dioctyltin diisooctylmalate, etc., for example, dibutyltin dimethoxid
- Dialkyltin alkoxides for example, dibutyltin diacetyl acetate, dibutyltin, such as dibutyltin getyl acetate acetate
- Intramolecular coordination derivatives for example, a reaction product of a dialkyltin oxide such as dibutyltin oxide and dioctyltin oxide with an ester compound such as dioctyl phthalate, diisodecyl phthalate, and methyl maleate, for example, dibutyltin bistriate Reaction products of dialkyltin oxides such as toxic silicate and dioctyltin bistriethoxysilicate with silicate compounds, and tetravalent tin compounds such as oxy derivatives (stannoxane compounds) of these dialkyltin compounds; for example, tin octylate, naphthene Divalent tin compounds such as tin acid tin, tin stearate
- the catalyst include known acidic catalysts such as a fatty acid such as a ferzatic acid, an organic acidic phosphate compound, and a known silanol condensation catalyst such as a basic catalyst.
- Such a combination system of an organic acid and an amine is more preferable from the viewpoint of reducing the amount used since the catalytic activity is increased.
- the acidic phosphoric acid ester and amine, the organic carboxylic acid and amine, particularly the organic acidic phosphate and amine, and the aliphatic carboxylic acid and amine combined systems have higher catalytic activities, It is preferable from the viewpoint of quick curing.
- the amount of the condensation catalyst is preferably about 0.01 to 20 parts, more preferably 0.5 to 5 parts, per 100 parts (parts by weight, hereinafter the same) of the polymer having a crosslinkable silyl group. If the amount of the silanol condensation catalyst is less than this range, the curing rate may be slow, and the curing reaction may not be sufficiently advanced. On the other hand, if the amount of the silanol condensation catalyst exceeds this range, local heat generation and foaming occur during curing, making it difficult to obtain a good cured product, shortening the pot life, and improving workability. Not good. Although not particularly limited, a tin-based curing catalyst gives a preferable result in that the curability is easily controlled.
- the above-mentioned silane coupling agent having an amino group can be used as a co-catalyst, similarly to the amine-based compound. is there.
- This amino group-containing silane coupling agent is a compound containing a silicon atom to which a hydrolyzable group is bonded (hereinafter referred to as a hydrolyzable silyl group) and a compound having an amino group.
- the group include the methoxy group and the ethoxy group, which are preferred in view of the hydrolysis rate.
- the number of hydrolysable groups is preferably 2 or more, particularly preferably 3 or more.
- the compounding amount of these amine compounds is preferably about 0.01 to 50 parts by weight, more preferably 0.1 to 20 parts by weight, based on 100 parts by weight of the polymer having a crosslinkable silyl group. If the compounding amount of the amine compound is less than 0.01 parts by weight, the curing rate may be slow, and the curing reaction may not be sufficiently advanced. On the other hand, If the amount of the min compound exceeds 30 parts by weight, the pot life may be too short, which is not preferable from the viewpoint of workability.
- amine compounds may be used alone or in combination of two or more.
- a silicon compound having neither amino group nor silanol group may be added as a co-catalyst.
- these silicon compounds are not limited, phenyltrimethyoxysilane, phenymethinoresimethoxysilane, phenoresimethyme / remethoxysilane, diphenyldimethoxysilane, diphenyljethoxysilane, triphenylmethoxysilane, and the like are preferable.
- diphenyldimethoxysilane diphenyljetoxysilane is the most preferred because of its low cost and easy availability.
- the amount of the silicon compound is preferably about 0.01 to 20 parts, more preferably 0.1 to 10 parts, based on 100 parts of the polymer having a crosslinkable silyl group. If the amount of the silicon compound falls below this range, the effect of accelerating the curing reaction may be reduced. On the other hand, if the amount of the silicon compound exceeds this range, the hardness and tensile strength of the cured product may decrease.
- the type and amount of the curing catalyst and the curing agent can control the curability and mechanical properties of the present invention according to the purpose and application.
- the type and amount of the curing catalyst and curing agent can be changed depending on the reactivity of the silyl group of the polymer having a crosslinkable silyl group. When the reactivity is high, 0.01 to 1 part is used. It is possible to cure sufficiently in a small amount.
- a dehydrating agent for removing moisture in the composition can be added for the purpose of improving storage stability.
- the dehydrating agent include vinyltrimethoxysilane, methyltrimethoxysilane, ethyl silicate, partially hydrolyzed condensate of ethyl silicate, methyl silicate, partially hydrolyzed condensate of methyl silicate, ⁇ -aminopropyl trimethoxy silane, ⁇ -Glycidoxyprovirtrimethoxysilane, ⁇ — (j3-aminoethyl) _ ⁇ -aminoprovir trimethyl Silane compounds such as silane, ⁇ -acryloyl propyl trimethoxy silane, ⁇ -glycidoxy lip bil trimethoxy silane, ⁇ -mercapto propyl trimethoxy silane, ⁇ -aminoethyl) or silane cup such as ⁇ -amino propyl methyl dimethoxy si
- a silane coupling agent or an adhesion-imparting agent other than the silane coupling agent can be added to the composition of the present invention. Addition of the adhesion-imparting agent makes it possible to further reduce the danger of the sealing material peeling off from the adherend such as a siding pod due to a change in joint width or the like due to external force. In some cases, there is no need to use a primer to improve the adhesiveness, which simplifies the work.
- Specific examples of the silane coupling agent include silane coupling agents having functional groups such as an amino group, a mercapto group, an epoxy group, a carboxyl group, a vinyl group, an isocyanate group, an isocyanurate, and a halogen.
- isocyanate groups such as ⁇ -isocyanate propyl trimethoxysilane, ⁇ - ⁇ f sodium propyltriethoxysilane, ⁇ -isocyanate propyl methyl methoxy silane, and y-isocyanate propyl methyl dimethoxy silane.
- Silanes ⁇ -aminopropyltrimethoxysilane, ⁇ -aminopropyltriethoxysilane, ⁇ -aminopropyltriisopropoxysilane, ⁇ -aminopropylmethyldimethoxysilane, ⁇ _aminopropylmethyljetoxysilane, ⁇ - (2-amino Tyl) aminopropyl trimethoxysilane, ⁇ - (2-aminoethyl) aminopropylmethyldimethoxysilane, ⁇ - (2-aminoethyl) aminopropyltriethoxysilane, ⁇ - (2-aminoethyl) aminopropyl methyl Toxysilane, ⁇ _ (2-aminoethyl) aminopropyltriisopropoxysilane, ⁇ -ureidopropyltrimethoxysilane, ⁇ -phenyl Gammaaminopropyl trimethoxys
- a reaction product of the amino group-containing silanes and the epoxy group-containing silanes a reaction product of the amino group-containing silanes and an acroyloxy group-containing silane, and a reaction product of the amino group-containing silanes and the isocyanate group-containing silanes Reactants can also be used.
- ketimine compounds and the like obtained by reacting the above amino group-containing silanes with a ketone compound such as methyl isobutyl ketone can also be used as the silane coupling agent.
- the silane coupling agent used in the present invention is usually used in an amount of 0.1 to 20 parts based on 100 parts of the polymer having a crosslinkable silyl group. In particular, it is preferable to use in the range of 0.5 to 10 parts.
- the effects of the silane coupling agent added to the polymer of the present invention include various adherends, that is, inorganic substrates such as glass, aluminum, stainless steel, zinc, copper, and mortar, PVC, acrylic, polyester, and the like.
- Polje When used for organic substrates such as ren, polypropylene, and polycarbonate, it shows a remarkable adhesive improvement effect under non-primer or primer treatment conditions. When used under non-primer conditions, the effect of improving the adhesion to various adherends is particularly significant.
- silane coupling agent examples include an epoxy resin, a phenol resin, sulfur, an alkyl titanate, and an aromatic polyisocyanate.
- the epoxy resin can be used by reacting it with the above-mentioned amino group-containing silanes.
- the above-mentioned adhesiveness-imparting agent may be used alone or in combination of two or more.
- the addition of these adhesion-imparting agents can improve the adhesion to the adherend.
- 0.1 to 20 parts by weight of a silane coupling agent is used in combination with the above-mentioned adhesiveness imparting agent in order to improve the adhesiveness, particularly the adhesiveness to a metal-coated surface such as an oil pan. Is preferred.
- plasticizers may be used in the polymer of the present invention as needed.
- a plasticizer is used in combination with a filler described later, the elongation of the cured product can be increased and a large amount of the filler can be mixed, which is more advantageous, but it is not always necessary to add the plasticizer.
- the plasticizer is not particularly limited, but may be, for example, dibutyl phthalate, diheptyl phthalate, di (2-ethylhexyl) phthalate, diisodecyl phthalate, butylbenzyl phthalate, etc., for the purpose of adjusting physical properties and properties.
- Non-aromatic dibasic acid esters such as dioctyl adipate, dioctyl sebacate, dibutyl sebacate, and isodecyl succinate; aliphatics such as butyl oleate and methyl acetylsilinoleate Esters: Polyalkylene glycol esters such as ethylene glycol / resibenzoate, triethylene glycol / resibenzoate, pentaerythritol ester; phosphate esters such as tritaresyl phosphate and tributyl phosphate; trimellitate ester S; polystyrene and poly one alpha - polystyrene such as methyl styrene; polybutadiene, Poriputen, Poriisopuchiren, butadiene one Atarironi Chlorinated paraffins; hydrocarbon-based oils such as alkyl diphenyl and partially hydrogenated terphenyl; process
- a polymer plasticizer which is a polymer having a number average molecular weight of 500 to 1500, is added to cure the viscosity of the curable composition, the slump property, and the composition.
- the mechanical properties such as tensile strength and elongation of the cured product obtained can be adjusted, and the initial physical properties are longer compared to when a low molecular weight plasticizer that does not contain a polymer component in the molecule is used.
- the drying property also referred to as paintability
- the high molecular weight plasticizer may or may not have a functional group.
- the number average molecular weight of the high molecular weight plasticizer is described as 500 to 150,000, it is preferably 800 to 100,000, more preferably 1,000. 88, 000. If the molecular weight is too low, the plasticizer flows out over time due to heat or rainfall, and the initial physical properties cannot be maintained for a long time, and the alkyd paintability cannot be improved. On the other hand, if the molecular weight is too high, the viscosity will be high and workability will be poor.
- polyether plasticizers and (meth) acrylic plasticizers are preferred from the viewpoint of high elongation characteristics and high weather resistance.
- the method of synthesizing the ataryl polymer include those obtained by conventional solution polymerization, and solventless acrylic polymers.
- the latter acrylic plasticizer uses a high-temperature continuous polymerization method without using a solvent or a chain transfer agent (US Pat. No. 4,414,370, Japanese Patent Laid-Open No. 59-620, Japanese Patent Publication No. 58005, JP-A-11-313522, US Pat. No. 5,010,166), which is more preferable for the purpose of the present invention.
- Examples thereof include, but are not limited to, ARUFON UP series (UP-1000, UP-1110, UP-2000, UP-2130) (called SGO) of Toagosei Co., Ltd. (Waterproof Journal June 2002) No.).
- a living radical polymerization method can also be mentioned as another synthesis method. This method is preferred because the molecular weight distribution of the polymer is narrow and the viscosity can be reduced. Further, atom transfer radical polymerization is more preferred, but is not limited thereto.
- the molecular weight distribution of the high molecular weight plasticizer is not particularly limited, but is preferably narrow from the viewpoint of viscosity, and is preferably less than 1.8. 1.7 or less is more preferred, 1.6 or less is still more preferred, 1.5 or less is still more preferred, 1.4 or less is particularly preferred, and 1.3 or less is most preferred.
- the plasticizers including the above-mentioned polymer plasticizers may be used alone or in combination of two or more, but are not necessarily required. If necessary, a high-molecular plasticizer may be used, and a low-molecular plasticizer may be further used in a range that does not adversely affect the physical properties. Further, from the viewpoint of the compatibility of the mixture of the component (A), the component (B) and the component (C), phthalates and acrylic polymers are particularly preferred.
- plasticizers can be added at the time of polymer production.
- the amount of the plasticizer used is not limited, but is 5 to 150 parts by weight, preferably 10 to 120 parts by weight, more preferably 20 to 100 parts by weight, based on 100 parts by weight of the polymer having a crosslinkable silyl group. It is. If the amount is less than 5 parts by weight, the effect as a plasticizer is unlikely to be exhibited, and if it exceeds 150 parts by weight, the mechanical strength of the cured product tends to be insufficient.
- fillers may be used in the polymer of the present invention as needed.
- the filler include, but are not limited to, wood flour, pulp, cotton chips, asbestos, glass fiber, carbon fiber, my strength, tall shell powder, rice husk powder, graphite, diatomaceous earth, clay, silica (fumed silica) , Precipitated silica, crystalline silica, fused silica, doloma , Silicic anhydride, hydrous silicic acid, amorphous spherical silica, etc.), reinforcing fillers such as carbon black; heavy calcium carbonate, colloidal calcium carbonate, magnesium carbonate, diatomaceous earth, calcined clay, clay, Tanolek, titanium oxide, bentonite, organic bentonite, ferric oxide, red iron oxide, fine aluminum powder, flint powder, zinc oxide, activated zinc white, zinc powder, zinc carbonate balloon, glass micro balloon, phenol resin, Fillers such as organic microballoons of
- precipitated silica fumed silica, crystalline silica, fused silica, dolomite, carbon black, calcium carbonate, titanium oxide, and talc are preferred.
- a filler selected from silica, fused silica, calcined clay, clay and activated zinc white can be added.
- silica whose surface has been previously subjected to hydrophobic treatment with an organic silicon compound such as organosilane / organosilazane or diorganocyclopolysiloxane is more preferable.
- silica-based filler having a high reinforcing property examples include, but are not particularly limited to, aerosil of Nippon Aerosil Co., Ltd., one of fumed silica, and Nippon Silica Co., Ltd., one of sedimentation silica. N ipsi 1 and the like.
- Transparency can also be obtained by using a resin powder such as PMMA powder as the filler.
- a filler selected mainly from titanium oxide, calcium carbonate, talc, ferric oxide, zinc oxide, and shirasu balloon. Can be added.
- calcium carbonate has a small specific surface area. In this case, the effect of improving the breaking strength, breaking elongation, adhesion and weather resistance of the cured product may not be sufficient. The greater the specific surface area, the greater the effect of improving the breaking strength, breaking elongation, adhesion and weather resistance of the cured product.
- the calcium carbonate has been subjected to a surface treatment using a surface treatment agent.
- a surface treatment agent organic substances such as fatty acids, fatty acid stones, and fatty acid esters and various surfactants, and various coupling agents such as silane coupling agents and titanate coupling agents are used.
- Specific examples include, but are not limited to, caproic acid, caprylic acid, pelargonic acid, capric acid, pendecanoic acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, etc.
- Fatty acids, salts of these fatty acids such as sodium and potassium, and alkyl esters of these fatty acids.
- Specific examples of the surfactant include polyoxyethylene alkyl / ether sulfate, long-chain alcohol sulfate, and the like, and sulfate-type anionic surfactants such as sodium salt and potassium salt, and alkynolebenzenesnole.
- Sulfonic acid-type anionic surfactants such as sulfonic acid, anophthalene lenphthalene olenoic acid, paraffin snolenic acid, ⁇ -olefin sulfonic acid, alkyl sulfosuccinic acid, etc., and their sodium salts, potassium salts, etc.
- the treatment amount of this surface treatment agent is 0.1 to 20 weight based on calcium carbonate.
- the treatment is preferably performed in the range of / 0 , more preferably in the range of 1 to 5% by weight. If the treatment amount is less than 0.1% by weight, the effect of improving workability, adhesion and weather resistance may not be sufficient, and if it exceeds 20% by weight, the storage stability of the curable composition may be insufficient. May be reduced.
- colloidal calcium carbonate is used when the effect of improving the thixotropy of the compound, the breaking strength of the cured product, the breaking elongation, and the adhesiveness and weather resistance is particularly expected. Is preferred.
- heavy calcium carbonate aims to lower the viscosity of the compound, increase the amount, and reduce costs
- this heavy calcium carbonate is used, the following can be used if necessary.
- Heavy calcium carbonate is obtained by processing natural chalk (chalk), 'marble, limestone, etc.' mechanically into a powder frame.
- the pulverization method includes a dry method and a wet method, but a wet pulverized product is often undesirable because the storage stability of the composition is often deteriorated.
- Heavy calcium carbonate becomes a product having various average particle sizes depending on the classification.
- the specific surface area value should be 1.5 m 2 / g or more and 50 m 2 / g or less. are preferable, more preferably less 2 m 2 Z g or 5 O m 2 Z g, 2 .
- the value of the specific surface area refers to a value measured by an air permeation method (a method of determining a specific surface area from the permeability of air to a powder-packed layer) performed according to JIS K 5101 as a measurement method.
- a specific surface area measuring device made by Shimadzu S S—
- fillers may be used alone or in combination of two or more depending on the purpose and need. Is not particularly limited, for example, to suppress the value of the specific surface area as required combine 1. 5 m 2 Z g or more heavy calcium and colloidal calcium carbonate, the increase in the viscosity distribution compound moderately, Improvements in the breaking strength, elongation at break, adhesion and weather resistance of the cured product can be greatly expected.
- the amount of the filler is preferably in the range of 5 to 1,000 parts by weight based on 100 parts by weight of the polymer having a crosslinkable silyl group. It is more preferably used in a range of from 500 to 500 parts by weight, and particularly preferably in a range of from 40 to 300 parts by weight.
- the compounding amount is less than 5 parts by weight, the effect of improving the breaking strength, elongation at break, adhesion and weather resistance of the cured product may not be sufficient.
- the workability of the composition may be reduced.
- Filler May be used alone or in combination of two or more.
- fine hollow particles may be used in combination with these reinforcing fillers.
- Such fine hollow particles are not particularly limited, but have a diameter of lm m or less, preferably 500 ⁇ m, as described in "The Latest Technology of Functional Filaments" (CMC).
- CMC Cosmetic Multimedia Substym
- a hollow body made of an inorganic or organic material having a size of 200 ⁇ m or less is used.
- Examples of the inorganic balloon include a silicate balloon and a non-silicate balloon.
- Examples of the silicate balloon include shirasu balloon, perlite, glass (silica) balloon, fly ash balloon, and the like.
- Alumina balloons, zirconia balloons, carbon balloons and the like can be exemplified.
- these inorganic balloons include winlite manufactured by Dichi Kasei as a Shirasu balloon, Sankilite manufactured by Sanki Kogyo, Fujipaloon of Fuji Silicon Chemical, a glass (silica) balloon, Karoon of Nippon Sheet Glass, and Sumitomo 3LEM Cell Star Z-28, EMER SON & CUM ING MI CRO BALLOON, PI TTSBUR GE CORN ING CE LAM ICGLASS MO DULES, 3M GLAS S BUB BLES, Asahi Glass Q-CE L E-PHERES made by Taiheiyo Cement, CEROS PHERE S made by PFAMARKET ING as a fly ash balloon, FILL I TE made by FILLI TE USA, BW made by Showa Denko as an alumina balloon, ZI RC made by Zirco Your balloon OA's HOLLOW ZI RCON IUM SPHEES, Kureha Chemical's Taleka Sphere and GENERAL
- Examples of the organic balloons include a balloon made of a thermosetting resin and a balloon made of a thermoplastic resin.
- thermosetting balun include phenol balloons, epoxy balloons, and the like.
- examples of urea balloons include thermoplastic balloons such as Saran balloons, polystyrene balloons, polymethacrylate balloons, polyvinyl alcohol balloons, and styrene-acrylic balloons.
- a balloon of a crosslinked thermoplastic resin can be used.
- the balloon mentioned here may be a balloon after foaming, or a balloon containing a foaming agent and then foamed after blending.
- organic balloons include U CAR and PHENOL IC MI CROBALLOONS manufactured by Union Carpide as phenol balloons, EC COS PHER ES manufactured by EME RS ON & CUM ING as epoxy balloons, and EME RS ON & CUM I as urea balloons.
- the above balloons may be used alone or as a mixture of two or more.
- the surface of these balloons is treated with a fatty acid, fatty acid ester, rosin, rosin lignin, silane coupling agent, titanium coupling agent, aluminum coupling agent, polypropylene dalicol, etc. Those treated to improve the properties can also be used.
- These balloons are used to reduce the weight and cost without impairing the flexibility, elongation and strength of the physical properties when the composition is cured.
- the content of the balloon is not particularly limited, it can be preferably used in the range of 0.1 to 50 parts, more preferably 0.1 to 30 parts, based on 100 parts by weight of the polymer having a crosslinkable silyl group.
- the amount is less than 0.1 part, the effect of weight reduction is small, and when the amount is more than 50 parts, a decrease in tensile strength among mechanical properties when the composition is cured may be observed.
- the specific gravity of the balloon is 0.1 or more, 3 to 50 parts is more preferable.
- the preferred amount is 5 to 30 parts.
- a physical property adjuster for adjusting the tensile properties of the resulting cured product may be added.
- the physical property modifier is not particularly limited, and examples thereof include alkylalkoxysilanes such as methyltrimethoxysilane, dimethyldimethoxysilane, trimethylmethoxysilane, and n-propyltrimethoxysilane; dimethyldiisopropoxyoxysilane, methyltriisopropoxyoxysilane, and ⁇ -glycol.
- Alkylisoproponoxysilanes such as sidoxypropylmethyldiisopropyloxysilane, ⁇ -glycidoxypropylmethyldimethoxysilane, ⁇ -glycidoxypropyltrimethoxysilane, butyltrimethoxysilane, butyldimethylmethoxysilane, ⁇ -aminopropyltrimethoxysilane, ⁇ - ( j3-aminoethyl) aminopropylmethyldimethoxysilane, ⁇ -mercaptopropyl trimethoxysilane, ⁇ -mercapto Alkoxysilanes having a functional group such as Pirumechirujime Tokishishiran; Siri Konwanisu like; polysiloxanes and the like.
- the physical property modifiers may
- a silanol-containing compound may be added to the polymer of the present invention as needed, for example, to change the properties of the cured product.
- a silanol-containing compound is a compound having one silanol group in the molecule and a compound capable of forming a compound having one silanol group in the molecule by reacting with ⁇ or moisture. Say. One of these may be used, or both compounds may be used simultaneously.
- the compound having one silanol group in the molecule, which is one of the silanol-containing compounds, is not particularly limited, and the compounds shown below,
- the compound having one silanol group in the molecule reduces the number of crosslink points by reacting with the crosslinkable silyl group of the polymer having a crosslinkable silyl group or the siloxane bond formed by crosslinking. It is presumed that this gives the cured product flexibility.
- the compound that can form a compound having one silanol group in the molecule by reacting with water which is one of the components of the present invention, is not particularly limited, but may be N, O-bis (trimethyi).
- a compound capable of producing a compound having one silanol group in the molecule by reacting with water is one compound having one silanol group in the molecule by reacting with moisture during storage, curing or after curing.
- To produce a compound having The compound having one silanol group in the molecule formed as described above reacts with the crosslinkable silyl group of the bull-based polymer or the siloxane bond formed by cross-linking as described above, thereby forming a cross-linking point. It is presumed that the number was reduced and the cured product was given flexibility.
- the silanol-containing compound may be used in combination with the air oxidation-curable substance described below. By using the compound in combination, the modulus of the cured product is kept low, and the curability of the alkyd paint applied to the surface is reduced. It is preferable because the property is improved.
- the addition amount of the silanol-containing compound can be appropriately adjusted according to the expected physical properties of the cured product.
- the silanol-containing compound is used in an amount of 0.1 to 50 parts by weight, preferably 0.3 to 20 parts by weight, and more preferably 0.5 to 10 parts by weight, based on 100 parts by weight of the polymer having a crosslinkable silyl group. Parts by weight can be added. If the amount is less than 0.1 part by weight, the effect of addition will not be exhibited. If the amount exceeds 50 parts by weight, crosslinking will be insufficient, and the strength and gel fraction of the cured product will be too low.
- the timing of adding the silanol-containing compound is not particularly limited, and may be added during the production of the polymer or may be added during the production of the curable composition.
- a thixotropic agent (anti-sagging agent) may be added to the polymer of the present invention as needed to prevent sagging and improve workability.
- the anti-sagging agent is not particularly limited, but examples thereof include polyamide waxes, hydrogenated castor oil derivatives, metal stones such as calcium stearate, aluminum stearate, and barium stearate, and fine powdered silica. . It is preferred that the finely divided silica may or may not have a surface treatment. These thixotropic agents (anti-sagging agents) may be used alone or in combination of two or more. Photocurable substance>
- a photocurable substance may be added to the polymer of the present invention as needed.
- a photocurable substance is a substance in which the molecular structure undergoes a chemical change in a short period of time by the action of light, thereby causing physical changes such as curing.
- the tackiness also referred to as residual tack
- This photocurable substance is a substance that can be cured by irradiating light, but a typical photocurable substance is, for example, to be left at room temperature for one day in a sunshine position (near a window) in a room. It is a substance that can be cured by heating.
- the type is not particularly limited.
- Specific examples of the unsaturated acrylic compound include (meth) acrylic esters (oligoester atari) of low-molecular-weight alcohols such as ethylene glycol, glycerin, trimethylolpronone, pentaerythritol, and neopentyl alcohol.
- Polyether polyols polymer polyols obtained by radical polymerization of vinyl monomers in polyols whose main chain is polyether, polyester polyols whose main chain is polyester and have hydroxyl groups at the ends, Ah Or (meth) acrylic polymers, and (meth) acrylic esters such as polyols having a hydroxyl group in the main chain; bisphenol A type ⁇ nopolak type epoxy resin and (meth) acrylic acid Epoxy acrylate-based oligomers obtained by the reaction; urethane-bonded (meth) acrylic groups in the molecular chains obtained by reacting polyols, polyisocyanates and hydroxyl-containing (meth) acrylates And the like.
- Polyky cinnamate is a photosensitive resin having a cinnamoyl group as a photosensitive group, and includes a number of polyky cinnamate derivatives in addition to those obtained by esterifying polybutyl alcohol with cinnamic acid.
- Azide resin is known as a photosensitive resin having an azide group as a photosensitive group.
- a photosensitive resin (March 1, 1972) 7th publishing, published by The Printing Society of Japan, pages 93-, from page 106 to page 117-), there are detailed examples, and these may be used alone or in combination, and if necessary, a sensitizer may be added. Can be used.
- unsaturated acryl-based compounds are preferred because they are easy to handle.
- the photocurable substance is used in an amount of 0.0 with respect to 100 parts by weight of the polymer having a crosslinkable silyl group. It is preferable to add 1 to 20 parts by weight. If the amount is less than 0.01 part by weight, the effect is small, and if it exceeds 20 parts by weight, physical properties may be adversely affected.
- the effect may be enhanced by adding a sensitizer, such as ketones or nitro compounds, or an accelerator, such as amines.
- An air oxidation curable substance may be added to the polymer of the present invention as needed.
- the air oxidation-curable substance is a compound having an unsaturated group that can be cross-linked and cured by oxygen in the air. By adding this air oxidation curable substance, it is possible to reduce the tackiness (also referred to as residual tack) of the cured product surface when the curable composition is cured.
- the air oxidation curable substance in the present invention is a substance which can be cured by contact with air, and more specifically, has a property of reacting with oxygen in air to cure.
- a typical air oxidation curable material can be cured, for example, by standing indoors in air for one day.
- the air oxidation-curable substance examples include drying oils such as tung oil and linseed oil; various alkyd resins obtained by modifying these drying oils; acrylic polymers, epoxy resins, and silicones modified with the drying oil. Resin, urethane resin; 1,2-polybutadiene, 1,4-polybutadiene, C5-C8gen polymers and copolymers, and various modified products of the polymers and copolymers (maleated Modified products, boiled oil modified products) and the like. Of these, tung oil and liquids of the gen-based polymers (liquid gen-based polymers) and modified products thereof are particularly preferred.
- liquid gen-based conjugates include liquid polymers obtained by polymerizing or copolymerizing gen-based compounds such as butadiene, chloroprene, isoprene, and 1,3-pentadiene; And copolymers of acrylonitrile and styrene, which have copolymerizability, with polymers such as NBR and SBR, which are obtained by copolymerizing monomers such as gen-based compounds. Maleated modified products, boiled oil modified products, etc.). These may be used alone or in combination of two or more. Among these liquid gen compounds, liquid polybutadiene is preferred.
- the air oxidation-curable substances may be used alone or in combination of two or more.
- the effect can be enhanced by using a catalyst or metal dryer that promotes the oxidation curing reaction together with the air oxidation curing substance.
- these catalysts and metal dryers include metal salt pyridine compounds such as cobalt naphthenate, lead naphthenate, zirconium naphthenate, cobalt octoate, and zirconium octoate.
- the air oxidation-curable substance may be used in combination with the above-mentioned photocurable substance, and when used together, exerts its effect more, especially when exposed for a long period of time, or when dust and fine powder are contaminated with a lot of sediment. It is particularly preferable because it can exert a remarkable pollution prevention effect even in severe areas.
- the air oxidation-curable substance is preferably added in an amount of 0.01 to 20 parts by weight based on 100 parts by weight of the polymer having a crosslinkable silyl group. If the amount is less than 0.01 part by weight, the effect is small, and if it exceeds 20 parts by weight, the physical properties may be adversely affected.
- antioxidants may be added to the polymer of the present invention as needed.
- Various types of antioxidants are known, and are described in, for example, “Antioxidant Handbook” published by Taisei Corporation and “Deterioration and Stabilization of Polymer Materials” (235-242) published by CMC Chemicals. Although various things are mentioned, it is not necessarily limited to these.
- thioethers such as MARK PEP-36 and MARK AO _23 (all manufactured by Asahi Denka Kogyo), Irgafos 38, Irgafosl 68, Irgafos PE PQ (all manufactured by Ciba 'Specialty Chemicals), etc.
- phosphorus-based antioxidants such as the following. Among them, the hindered phenol compounds shown below are preferred.
- hindered phenol compound examples include the following. 2,6-di-tert-butynole-1,4-methinolephenol, 2,6-di-tert-butyl-1-butylethylphenol, mono (or di- or tri) ( ⁇ -methylbenzyl) phenol, 2,2′-methylenebis (4-ethyl-6-tert-butyl phenol), 2,2'-methylenebis (4-methynole 6-tert-butylinphenol), 4,4, butylidenebis (3-methyl-1-6-tert-butylphenol), 4,4,1-Chobis (3-methinole 6 tert-butynolephenol), 2,5-di-tert-butynolehydroquinone, 2,5-di-tert-aminolehydroquinone, triethylene glycol-bis-one [3- (3-t-butyl-5-methyl-4-hydroxyphenyl) propionate], 1,6-hexanedi
- hydroxyphenyl benzotriazole derivative 2- (3,5-di-butynole 4- (Droxybenzinole)-bis (1,2,2,6,6-pentamethyl_-4-piperidyl) -2-n-butylmethylmalonate, 2,4-zy t-butylphenyl 3,5-ge-t-butyl-1-4- Hydroxybenzoate and the like can be mentioned.
- the antioxidant may be used in combination with a light stabilizer described later, and when used in combination, the effect is further exhibited, and heat resistance is particularly improved.
- Tinuvin C 353 and Tinuvin B 75 both of which are manufactured by Chipa 'Specialty' Chemicals in which an antioxidant and a light stabilizer are mixed in advance may be used.
- the amount of the antioxidant to be used is preferably in the range of 0 :! to 10 parts by weight based on 100 parts by weight of the polymer having a crosslinkable silyl group. If the amount is less than 0.1 part by weight, the effect of improving the weather resistance is small, and if it exceeds 5 parts by weight, there is no great difference in the effect and it is economically disadvantageous. ⁇ Light stabilizer>
- a light stabilizer may be added to the polymer of the present invention as needed.
- Various types of light-resistant stabilizers are known, and are described in, for example, "Antioxidant Handpook” published by Taisei Corporation and “Deterioration and Stabilization of Polymer Materials” (235-242) published by CMC Chemicals. Various things are mentioned.
- an ultraviolet absorber / hindered amine-based light stabilizer compound is preferable.
- benzotriazole-based compounds such as Tinuvin P, Tinuvin 234, Tinuvin 320, Tinuvin 326, Tinuvin 327, Tinuvin 329, and Tinuvin 213 (all of which are manufactured by Chipa Specialty Chemicals), etc. Examples thereof include triazine compounds such as 577, benzophenone compounds such as CHIMAS SORB 81, and benzoate compounds such as tinuvin 120 (manufactured by Ciba Specialty Chemicals).
- Dimethinolate succinate 1- (2-Hydroxitytyl) 1-4-Hydroxy 2,2,6,6-tetramethylpiperidine polycondensate, poly [ ⁇ 6- (1,1,3,3-tetramethylbutyl) amino] 1,3,5-triazine-1,2,4-diyl ⁇ ⁇ (2,2,6,6-tetramethyl-1-piperidyl) imino ⁇ ], N, N, 1-bis (3-aminopropyl) ethylenediamine-1,2,4 1-bis [N-butyl-1-N- (1,2,2,6,6-pentapentamethyl_4-piperidyl) amino] — 6-cloth_1,3,5-triazine condensate, bis (2,2, 6,6-tetramethyl-1-piperidyl) sebacate, monobis (2,2,6,6-tetramethyl-4-piperidinyl) succinate, and the like.
- Tinuvin 622 LD Tinuvin 144, CH IMAS SOR B 944 LD, CH I MAS S ORB 119 FL, Irgafosl 68, (all of which are made by Ciba 'Specialty' Chemicals), MARK LA-52, M ARK LA-57, MARK LA-62, MARK LA-67, MARK LA-63, MARK LA-68, MARK LA-82, MARK LA_87, (all manufactured by Asahi Denka Kogyo), Sanol LS-770, SANOL LS— 7 65, SANOL LS—292, SANOLON LS—26 26, SANOL LS—114, SANOL LS—744, SANOL LS—440 (all manufactured by Sankyo)
- the present invention is not limited thereto.
- the light stabilizer may be used in combination with the above-described antioxidant, and when used in combination, the effect is further exhibited, and the weather resistance is particularly improved.
- the combination is not particularly limited, a combination of the above-mentioned hindered phenol-based antioxidant and, for example, a benzotriazole-based ultraviolet absorber, or the above-mentioned hindered phenol-based antioxidant and a hindered amine-based light stabilizer Combinations with compounds are preferred.
- a combination of the above-mentioned hindered phenol-based antioxidant for example, a benzotriazole-based ultraviolet absorber and a hindered amine-based light stabilizer compound is preferred.
- Tinuvin C 353 and Tinuvin B 75 both manufactured by Ciba Specialty Chemicals in which a light stabilizer and an antioxidant are mixed in advance may be used.
- the hindered amine-based light stabilizer may be used in combination with the above-mentioned photocurable substance, and when used together, the hindered amine-based light stabilizer further exerts its effect, and is particularly preferable because the weather resistance may be improved.
- the combination is not particularly limited, but in this case, a tertiary amine-containing hindered amine-based light stabilizer is preferred because the viscosity increase during storage is small and the storage stability is good.
- the amount of the light stabilizer used is preferably in the range of 0.1 to 10 parts by weight based on 100 parts by weight of the polymer having a crosslinkable silyl group. If the amount is less than 0.1 part by weight, the effect of improving the weather resistance is small.
- the composition of the present invention can contain an epoxy resin and a curing agent for epoxy resin.
- an epoxy resin When cured using a mixture of the vinyl polymer and the epoxy resin of the present invention, a cured product having high strength and high adhesive strength can be obtained.
- Conventionally known epoxy resins can be used widely, such as bisphenol A epoxy resin, bisphenol F epoxy resin, bisphenol AD epoxy resin, bisphenol S epoxy resin, and hydrogenated epoxy resins.
- Glycidyl ester type epoxy resin Glycidyl ester type epoxy resin, glycidylamine type epoxy resin, alicyclic epoxy resin, nopolak type epoxy resin Resins, polyurethane-modified epoxy resins having polyurethane bonds, fluorinated epoxy resins, rubber-modified epoxy resins containing polybutadiene or NBR, flame-retardant epoxy resins such as glycidyl ether of tetrabromobisphenol A, and the like.
- These epoxy resins may be used alone or in combination of two or more.
- bisphenol A type epoxy resin is preferable in terms of balance of workability, curability, adhesive strength, versatility of adherend, water resistance, durability and the like.
- the amount of such an epoxy resin can be used at an arbitrary ratio.
- a polymer having a crosslinkable silyl group is used. It is usually used in a range of about 10 to 80 parts by weight, preferably in a range of 20 to 70 parts by weight, based on parts by weight. If the amount is less than 10 parts by weight, the adhesive strength and the water resistance become insufficient. If the amount is more than 80 parts by weight, the peel strength is lowered, which is not preferable.
- the composition of the present invention can include a curing agent for an epoxy resin.
- a curing agent for epoxy resin conventionally known curing agents can be widely used.
- Polyoxypropylene-based amines such as amines; phenols; epoxy-modified amines obtained by reacting the above amines with epoxy compounds, Mannich-modified amines obtained by reacting the above amines with formalin and phenols, Michael Modified amines such as addition-modified amines and ketimines; amine salts such as 2-ethylhexanoate of 2,4,6-tris (dimethylaminomethyl) phenol;
- These curing agents may be used alone or in combination of two or more.
- 2,4,6-tris (dimethylaminomethyl) phenol and polyoxypropylene-based amines are preferred from the viewpoint of curability and physical property balance.
- Such a curing agent for epoxy resin is preferably in the range of usually about 1 to 60 parts by weight, based on 100 parts by weight of the polymer having a crosslinkable silyl group, depending on the amount of the epoxy resin to be blended. Is preferably used in the range of about 2 to 50 parts by weight. If the amount is less than 1 part by weight, curing of the epoxy resin is insufficient, and the adhesive strength is reduced. On the other hand, if it exceeds 60 parts by weight, pread or the like is generated on the interface, and the adhesiveness is undesirably reduced.
- additives may be added to the polymer of the present invention as needed for the purpose of adjusting various physical properties of the curable composition or the cured product.
- additives include, for example, flame retardants, curability modifiers, metal deactivators, ozone degradation inhibitors, phosphorus-based peroxide decomposers, lubricants, pigments, and foaming agents.
- flame retardants for example, flame retardants, curability modifiers, metal deactivators, ozone degradation inhibitors, phosphorus-based peroxide decomposers, lubricants, pigments, and foaming agents.
- the polymer of the present invention can be used substantially without a solvent.
- a solvent may be used from the viewpoint of workability, etc., but it is desirable not to use it because of environmental effects.
- the curable composition using the polymer of the present invention can be prepared as a one-component type in which all the components are premixed and sealed under a dry atmosphere condition and then cured by the moisture in the air after the application.
- components such as a curing catalyst, a filler, a plasticizer, and water may be separately blended as a curing agent, and the blended material and the polymer composition may be mixed before use to prepare a two-component type.
- a colorant can be added when mixing the two components.
- a sealing material that matches the color of the siding board a wide variety of colors can be provided with limited stock This makes it easier to cope with multicolor demands from the market, and is more preferable for low-rise buildings.
- the colorant for example, the use of a paste obtained by mixing a pigment and a plasticizer, and in some cases, a filler is facilitated. Further, by adding a retarder when mixing the two components, the curing speed can be finely adjusted at the work site. (Example)
- ⁇ Aryl Step> Subsequently, 1.2 times equivalent of NaNOe methanol was added to the hydroxyl group of the hydroxyl group-terminated polyether oligomer.
- the methanol solution was added to remove the methanol, and 3-chloro-11-propene was added to convert the terminal hydroxyl group to an aryl group.
- ⁇ Purification process> Hexane and water are added to this to extract the ionic impurities into the aqueous layer, the aqueous layer is separated and removed, and the hexane layer is concentrated and devolatilized under reduced pressure. Purified polypropylene oxide (aryl-terminated polyether) having an average molecular weight of about 15,000 was obtained.
- a reactive silicon group-containing polyether was obtained in the same manner as in Production Example 1, except that the amounts of hexane and water were changed and the extraction / separation speed was changed. Similarly, the concentrations of Co and Zn were measured. Table 1 shows the measurement results.
- a reactive silicon group-containing polyether was obtained in the same manner as in Production Example 1, except that the purification method in the ⁇ purification step> was changed to a filtration method instead of the hexane / water extraction method.
- the concentration of Co was 0.9 ppm and the concentration of Zn was 6.4 ppm.
- a reactive silicon group-containing polyether was obtained in the same manner as in Production Example 25, except that the conditions for the treatment were changed. Similarly, the concentrations of Co and Zn were measured. Table 3 shows the measurement results.
- the catalyst was treated with strong alcohol, neutralized with acid, and purified by filtration.
- a reactive silicon group-containing polyether was obtained in the same manner as in Production Example 27, except that the conditions for the treatment were changed. Similarly, the concentrations of Co and Zn were measured. Table 3 shows the measurement results.
- the reactive silicon group-containing polyether or polyether / butyl polymer mixture obtained in Production Examples 13 to 24 and 30 to 45 was placed in a glass container and accelerated and stored at 80 ° C for 2 days.
- Table 6 shows the results of measuring the red coloration after accelerated storage using a color difference meter (Nippon Denshoku 30 OA). Color measurement method: The polymer was placed in a 1 cm square cell, deaerated by centrifugation, and the a * value was measured by a transmission method. Plank used pure water.
- the polymer of the present invention When exposed to the atmosphere, the polymer of the present invention forms a three-dimensional network and cures by the action of moisture.
- the polymer of the present invention is useful as an elastic sealant or adhesive, and can be used as a sealant or adhesive for buildings, ships, automobiles, roads and the like. Furthermore, it can adhere to a wide range of substrates such as glass, porcelain, wood, metal, resin moldings, etc., alone or with the help of a primer, so it can be used as various types of sealing compositions and adhesive compositions It is.
- the polymer obtained by the method of the present invention is a highly weather-resistant sealing agent, an adhesive or a clear type sealing agent. It can be used effectively for adhesives, high-strength sealing agents and adhesives.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Materials Engineering (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Polyethers (AREA)
- Paints Or Removers (AREA)
- Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04729300.6A EP1621568B1 (en) | 2003-05-02 | 2004-04-23 | Organic polymer containing reactive silicon group |
| JP2005505890A JP5060725B2 (ja) | 2003-05-02 | 2004-04-23 | 反応性珪素基含有有機重合体 |
| US10/555,083 US8022149B2 (en) | 2003-05-02 | 2004-04-23 | Organic polymer containing reactive silicon group |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003127367 | 2003-05-02 | ||
| JP2003-127367 | 2003-05-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004096887A1 true WO2004096887A1 (ja) | 2004-11-11 |
Family
ID=33410371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/005956 Ceased WO2004096887A1 (ja) | 2003-05-02 | 2004-04-23 | 反応性珪素基含有有機重合体 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8022149B2 (ja) |
| EP (1) | EP1621568B1 (ja) |
| JP (1) | JP5060725B2 (ja) |
| CN (2) | CN100355807C (ja) |
| WO (1) | WO2004096887A1 (ja) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006225472A (ja) * | 2005-02-16 | 2006-08-31 | Yokohama Rubber Co Ltd:The | 湿気硬化性シーリング材組成物 |
| WO2008020600A1 (en) * | 2006-08-16 | 2008-02-21 | Asahi Glass Company, Limited | Polymer composition |
| US20100168309A1 (en) * | 2007-05-01 | 2010-07-01 | Mackinnon Iain A | Polymer And Polymer Compositions |
| EP1930376B2 (en) † | 2005-09-30 | 2016-09-07 | Kaneka Corporation | Curable composition |
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| US9969843B2 (en) | 2012-05-31 | 2018-05-15 | Kaneka Corporation | Polymer having terminal structure including plurality of reactive silicon groups, method for manufacturing same, and use for same |
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- 2004-04-23 US US10/555,083 patent/US8022149B2/en active Active
- 2004-04-23 CN CNB2004800117306A patent/CN100355807C/zh not_active Expired - Lifetime
- 2004-04-23 EP EP04729300.6A patent/EP1621568B1/en not_active Expired - Lifetime
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|---|---|---|---|---|
| JP2006225472A (ja) * | 2005-02-16 | 2006-08-31 | Yokohama Rubber Co Ltd:The | 湿気硬化性シーリング材組成物 |
| EP1930376B2 (en) † | 2005-09-30 | 2016-09-07 | Kaneka Corporation | Curable composition |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN1780871A (zh) | 2006-05-31 |
| JPWO2004096887A1 (ja) | 2006-07-13 |
| CN101165134A (zh) | 2008-04-23 |
| US8022149B2 (en) | 2011-09-20 |
| CN100355807C (zh) | 2007-12-19 |
| EP1621568B1 (en) | 2019-11-13 |
| US20060211821A1 (en) | 2006-09-21 |
| JP5060725B2 (ja) | 2012-10-31 |
| EP1621568A4 (en) | 2009-05-06 |
| EP1621568A1 (en) | 2006-02-01 |
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