WO2023190213A1 - 水性分散体組成物 - Google Patents
水性分散体組成物 Download PDFInfo
- Publication number
- WO2023190213A1 WO2023190213A1 PCT/JP2023/011943 JP2023011943W WO2023190213A1 WO 2023190213 A1 WO2023190213 A1 WO 2023190213A1 JP 2023011943 W JP2023011943 W JP 2023011943W WO 2023190213 A1 WO2023190213 A1 WO 2023190213A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- aqueous dispersion
- mass
- dispersion composition
- parts
- less
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/10—Homopolymers or copolymers of propene
- C09D123/14—Copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/26—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers modified by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D151/00—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D151/06—Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D201/00—Coating compositions based on unspecified macromolecular compounds
- C09D201/02—Coating compositions based on unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/02—Emulsion paints including aerosols
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/02—Emulsion paints including aerosols
- C09D5/024—Emulsion paints including aerosols characterised by the additives
- C09D5/027—Dispersing agents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/10—Homopolymers or copolymers of propene
- C09J123/14—Copolymers of propene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/26—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers modified by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J151/00—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J151/06—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J201/00—Adhesives based on unspecified macromolecular compounds
- C09J201/02—Adhesives based on unspecified macromolecular compounds characterised by the presence of specified groups, e.g. terminal or pendant functional groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/17—Amines; Quaternary ammonium compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/306—Applications of adhesives in processes or use of adhesives in the form of films or foils for protecting painted surfaces, e.g. of cars
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
- C09J2423/10—Presence of homo or copolymers of propene
Definitions
- the present invention relates to an aqueous dispersion composition containing a polyolefin resin, a nitrogen-containing nonionic emulsifier, and a basic substance suitable for coating agents, primers, paints, inks, adhesives, etc.
- Polyolefin resins such as polypropylene are used in large quantities in automobile parts, various films, and various molded products because they are inexpensive and have excellent properties.
- polyolefin resins are non-polar, they have the problem of being difficult to paint or adhere to.
- modified polyolefins such as acid-modified polyolefins and acid-modified chlorinated polyolefins have been developed for painting, printing, film lamination, and adhesion of polyolefin resins.
- solvent-based paints can be expected to improve adhesion due to the penetration diffusion effect into the base material or the swelling effect of the solvent to the base material, so the adhesion is good. Since the above-mentioned effects cannot be expected with water-based paints, they have the problem of reduced adhesion.
- Patent Document 1 discloses a film forming method in which an aqueous modified polyolefin resin composition is coated on a substrate and baked and dried at 80 to 90°C, and the melting point of the aqueous modified polyolefin resin composition is 19°C or higher than the drying temperature.
- a method for forming a film characterized by a low temperature in the range of 26° C. or lower is disclosed.
- Patent Document 2 discloses an aqueous dispersion containing a high molecular weight polyolefin and a surfactant, but there is a problem that sufficient adhesion cannot be obtained during low temperature baking.
- the present invention has been made in view of the above, and provides high peel strength and high adhesion at low temperatures (80 to 90°C) baking, and good water resistance to polyolefin substrates that are water-based but difficult to adhere to.
- An object of the present invention is to provide an aqueous dispersion composition of the present invention.
- the modified polyolefin (A) contains a specific modified polyolefin (A), a nitrogen-containing nonionic emulsifier (B), and a basic substance (C), and the Z average particle diameter of the modified polyolefin (A) is 200 nm. It has been discovered that the following aqueous dispersion composition can solve the above problems, leading to the present invention. That is, the gist of the present invention is as follows.
- the present invention provides a modified polyolefin (A) having a weight average molecular weight measured by GPC of 60,000 or more and a modification amount of less than 1.0% by mass, and a nitrogen-containing nonionic emulsifier (B). and a basic substance (C), the aqueous dispersion composition characterized in that the modified polyolefin (A) in the aqueous dispersion composition has a Z average particle diameter of 200 nm or less. thing.
- the melting point of the modified polyolefin (A) is 60°C to 85°C, and it is preferable that the modified polyolefin (A) does not contain chlorine.
- the amount of the nitrogen-containing nonionic emulsifier (B) added is preferably 10 to 45% by mass based on 100 parts by mass of the modified polyolefin resin (A).
- the acid value of the anionic group-containing water-soluble polymer (D) is 100 mg to 500 mg KOH/g-resin, and the content is the same as the modified polyolefin (A). ) is preferably 0 to 2% by mass based on 100 parts by mass.
- the acid-modified polyolefin (A) is preferably a propylene- ⁇ -olefin copolymer with a butene content of 2 to 35% by mass in the polyolefin component.
- Adhesives and paints containing any of the aqueous dispersions described above A coating film obtained by removing the aqueous medium from the aqueous dispersion described in any of the above.
- the aqueous dispersion composition of the present invention When the aqueous dispersion composition of the present invention is desired to be used as a primer for polypropylene substrates, it has high peel strength and high Since it can provide a coating film with adhesion and water resistance, it can be suitably used in paints and adhesives, and particularly suitably used as automotive paints.
- the modified polyolefin (A) used in the present invention is a polyolefin obtained by acid-modifying a propylene- ⁇ olefin copolymer.
- the acid component of the acid-modified polyolefin used in the present invention includes ⁇ , ⁇ -unsaturated carboxylic acids and/or acid anhydrides thereof. Those obtained by grafting at least one ⁇ , ⁇ -unsaturated carboxylic acid and its acid anhydride to a propylene- ⁇ olefin copolymer are preferred.
- Propylene- ⁇ -olefin copolymer is a copolymer containing propylene and ⁇ -olefin as copolymerization components, and is a propylene-1-butene copolymer or a copolymer mainly composed of propylene-1-butene and ⁇ -olefin. Polymerized ones are preferred.
- Examples of ⁇ -olefins other than propylene and butene include ethylene, isobutene, 1-pentene, 3-methyl-1-pentene, 1-hexene, 1-heptene, 1-octene, 4-methyl-1-pentene, and acetic acid.
- One or more types of vinyl can be used. Among these ⁇ -olefins, ethylene is preferred.
- the propylene component is preferably 50% by mass or more, more preferably 60% by mass or more, and particularly preferably 65% by mass or more. Within the above range, adhesion (adhesiveness) to polyolefin substrates including propylene substrates is good. Further, the 1-butene component is preferably 2 to 35% by mass in the olefin component. It is more preferably 3 to 33% by mass, and particularly preferably 5 to 31% by mass. Within this range, a resin with a melting point suitable for the film forming process, which is dried at 80°C to 90°C, is formed.
- At least one kind of ⁇ , ⁇ -unsaturated carboxylic acid and its acid anhydride includes, for example, maleic acid, itaconic acid, citraconic acid, and acid anhydrides thereof.
- acid anhydrides are preferred, and maleic anhydride is more preferred.
- maleic anhydride-modified propylene-butene copolymers, maleic anhydride-modified propylene-ethylene-butene copolymers, etc. may be mentioned, and these acid-modified polyolefins may be used alone or in combination of two or more. I can do it.
- the method for producing acid-modified polyolefins is not particularly limited, and includes, for example, a radical graft reaction (i.e., generating radical species for the main chain polymer, and using the radical species as a polymerization initiation point to form unsaturated carboxylic acids and acid anhydrides). (reaction to graft-polymerize), etc.
- a radical graft reaction i.e., generating radical species for the main chain polymer, and using the radical species as a polymerization initiation point to form unsaturated carboxylic acids and acid anhydrides.
- Examples of the radical generator include, but are not limited to, organic peroxides and azonitriles, and it is preferable to use organic peroxides.
- organic peroxides include, but are not limited to, di-tert-butyl peroxyphthalate, tert-butyl hydroperoxide, dicumyl peroxide, benzoyl peroxide, tert-butyl peroxybenzoate, tert-butyl peroxy- 2-ethylhexanoate, tert-butyl peroxypivalate, methyl ethyl ketone peroxide, di-tert-butyl peroxide, lauroyl peroxide, etc.
- Azonitriles include azobisisobutyronitrile, azobisisopropionitrile, etc. Can be mentioned.
- the amount of acid modification of the acid-modified polyolefin is preferably 0.1% by mass or more, particularly preferably 0.3% by mass or more. Moreover, it is less than 1.0 mass%, preferably 0.9 mass% or less, and particularly preferably 0.8 mass% or less. When the content is 0.1% by mass or more, the dispersibility in water tends to be good, and when it is less than 1.0% by mass, the peel strength and water resistance of the coating film on the polyolefin base material are particularly improved.
- the weight average molecular weight (Mw) of the modified polyolefin (A) is 60,000 or more, preferably 70,000 or more, and particularly preferably 80,000 or more. When it is 60,000 or more, the cohesive force becomes strong and the adhesion (adhesiveness) and water resistance become good.
- the upper limit is not particularly stipulated, but it is preferably 150,000 or less.
- the solubility tends to be good and the preparation of an aqueous dispersion composition tends to be easy.
- the weight average molecular weight in the present invention refers to a value measured by GPC (gel permeation chromatography). Specific measurement conditions will be explained in Examples to be described later.
- the modified polyolefin (A) is crystalline. Being crystalline is advantageous because it has stronger cohesive force and superior adhesion (adhesiveness), water resistance, heat resistance, and chemical resistance compared to amorphous properties.
- Crystallinity as used in the present invention refers to crystallinity measured at 10°C/10°C from -100°C to 250°C using a differential scanning calorimeter (hereinafter also referred to as DSC, Q-2000, manufactured by TA Instruments Japan). min. It refers to a substance that shows a clear melting peak during the heating process. Melting point and heat of fusion were measured using DSC at 10°C/min. This is the value measured from the top temperature and area of the melting peak when heated and melted at a rate of , cooled to form a resin, and then heated and melted again.
- DSC differential scanning calorimeter
- the melting point (Tm) of the modified polyolefin resin (A) is preferably 20 to 5 degrees Celsius lower than the drying temperature during the film forming process of drying at 80 to 90 degrees Celsius, and the melting point is 60 degrees Celsius. It is preferable that it is above.
- the temperature is more preferably 63°C or higher, particularly preferably 65°C or higher.
- the temperature is preferably 85°C or lower, more preferably 83°C or lower, particularly preferably 80°C or lower.
- the temperature is 60°C or higher, the cohesive force derived from the crystal becomes strong, and the peel strength, adhesion (adhesiveness), water resistance, heat resistance, and chemical resistance become better.
- the temperature is 85°C or lower, the solubility is good and it is easy to form an aqueous dispersion composition.
- the emulsifier (B) contained in the aqueous dispersion of the present invention is a nitrogen-containing nonionic emulsifier.
- nitrogen-containing nonionic surfactants include polyoxyalkylene alkylamine types such as polyoxyethylene laurylamine, polyoxyethylene stearylamine, polyoxyethylene coconut oil amine, and polyoxyethylene tallow amine, and polyoxyethylene polyoxypropylene.
- Polyoxyalkylene amine types such as monoamines, polyoxyethylene oleylamide, polyoxyethylene coconut oil fatty acid amide, polyoxyethylene laurylamide, polyoxyethylene stearylamide, polyoxyethylene tallow amide, polyoxyethylene coconut oil fatty acid monoethanolamide , polyoxyalkylene alkylamide types such as polyoxyethylene lauryl monoethanolamide, and the like.
- nitrogen-containing nonionic emulsifiers polyoxyethylene laurylamine and polyoxyethylene coconut oil amine are preferred because they cause less bleeding and provide good peel strength.
- the nitrogen-containing nonionic emulsifier (B) preferably has an alkyl chain carbon number in the range of 10 to 30, more preferably in the range of 12 to 25, and the number of carbon atoms in the alkyl chain is in the range of 10 to 30 to prevent hydrophobic interaction. This improves stability with olefin particles, improves water resistance, and improves peel strength.
- the nitrogen-containing nonionic emulsifier (B) preferably has a mole number of ethylene oxide (EO) (number of ethylene oxide units per molecule) in the range of 8 to 30. More preferably 9 to 25 or more, particularly preferably 10 to 20. When the number is within the range of 8 to 30, water dispersibility in emulsification becomes stable.
- EO ethylene oxide
- the nitrogen-containing nonionic emulsifier (B) is preferably 10 parts by mass or more, more preferably 13 parts by mass or more, and 20 parts by mass or more based on 100 parts by mass of the modified polyolefin resin (A). More preferably, the amount is 25 parts by mass or more. Moreover, it is preferably 45 parts by mass or less, more preferably 42 parts by mass or less, and particularly preferably 40 parts by mass or less. When the amount is 15 parts by mass or more, the emulsifying property is increased and the particle size becomes smaller, and the film forming property is improved, so the peel strength tends to be improved, and when it is 45 parts by mass or less, the water resistance of the coating film tends to be good.
- the method of blending the nitrogen-containing nonionic emulsifier (B) is not particularly limited, but for example, it may be blended in water etc. without being diluted, or it may be blended in the form of an aqueous solution diluted to 1 to 50% by mass. good. In order to quickly mix it into the aqueous dispersion composition, it is preferably blended in the form of an aqueous solution diluted to 1 to 50% by mass.
- an emulsifier in an aqueous solution state into the aqueous dispersion composition the emulsifier is quickly adsorbed onto the particles, making it possible to reduce the particle size.
- the basic substance (C) used in the present invention can neutralize the acidic groups (carboxyl groups) of the modified polyolefin (A) and improve the dispersibility of the modified polyolefin (A).
- the basic substance (C) is not particularly limited, but volatile basic substances are preferable, and ammonia and amines are particularly preferable.
- amines include, but are not limited to, monomethylamine, dimethylamine, trimethylamine, monoethylamine, mono-n-propylamine, dimethyl-n-propylamine, monoethanolamine, diethanolamine, triethanolamine, N-methylethanolamine.
- N-aminoethylethanolamine, N-methyldiethanolamine, monoisopropanolamine, diisopropanolamine, triisopropanolamine, N,N-dimethylethanolamine, and N,N-dimethylpropanolamine, and particularly preferred are These are triethylamine and N,N-dimethylethanolamine. These volatile amines can be used alone or in combination of two or more.
- the basic substance (C) is preferably 0.5 parts by mass or more, more preferably 1 part by mass or more, and 2 parts by mass or more based on 100 parts by mass of the modified polyolefin (A). is more preferable, and particularly preferably 3 parts by mass or more. Moreover, it is preferably 10 parts by mass or less, more preferably 9 parts by mass or less, even more preferably 8 parts by mass or less, and particularly preferably 7 parts by mass or less. If the amount is too low, the particle size of the dispersed particles of the resulting aqueous dispersion composition may be large, resulting in a decrease in storage stability. If the amount is too high, the water resistance of the coating film may be decreased.
- the anionic group-containing water-soluble polymer (D) used in the present invention can reduce the charge on the particle surface of the modified polyolefin (A) in the aqueous dispersion composition. Thereby, the viscosity can be kept constant within a range of 500 mPa ⁇ s or less when the solid content of the modified polyolefin in the aqueous dispersion composition is 30% by mass.
- the anionic group-containing water-soluble polymer (D) in addition to reducing the viscosity of the aqueous dispersion composition, it also has the excellent effect of not inhibiting the effect of the viscosity modifier during coating. Demonstrated. Viscosity modifiers develop the desired viscosity in paints through hydration and association between polar groups, but when low-molecular compounds such as electrolytes are used as charge reducing agents, these hydration and association between polar groups occur.
- the viscosity modifier may become ineffective due to the inhibition of
- the anionic group-containing water-soluble polymer (D) is a polymer compound, its flow in the paint is suppressed, and its interaction with the viscosity modifier is small so that it does not affect the effectiveness of the viscosity modifier. Conceivable. In other words, when producing paints, inks, sealants, primers, adhesives, etc., it is necessary to mix various additives such as viscosity modifiers in addition to aqueous dispersion compositions to prevent dripping during coating. There is.
- Anionic group-containing water-soluble polymers (D) do not inhibit the effects of viscosity modifiers, etc., so there is no dripping during coating, and they are suitable for paints, inks, sealants, primers, and adhesives. You can obtain agents such as
- the anionic group-containing water-soluble polymer (D) refers to a polymer compound that dissolves in water and reduces the charge on the particle surface of the modified polyolefin (A). Specific examples include acrylic resins, urethane resins, and epoxy resins containing carboxyl groups, sulfonic acid groups, sulfuric acid ester groups, and phosphoric acid ester groups, and more specifically, polystyrene sulfonic acid, polyacrylic acid, Examples include anionic group-containing water-soluble polymers whose main components are styrene-maleic anhydride copolymer, styrene-acrylic monomer copolymer, and styrene-methacrylic monomer copolymer. These anionic group-containing water-soluble polymers (D) can be used alone or in combination of two or more.
- the acid value of the anionic group-containing water-soluble polymer (D) is preferably 100 mgKOH/g-resin or more, more preferably 130 mgKOH/g-resin or more, still more preferably 150 mgKOH/g-resin or more, and especially Preferably it is 160 mgKOH/g-resin or more, more preferably 170 mgKOH/g-resin or more, and most preferably 180 mgKOH/g-resin or more. If it is less than 100 mgKOH/g-resin, the effect of reducing the viscosity of the aqueous dispersion composition may be reduced.
- the water resistance of the coating film may decrease, and the effect of the viscosity modifier when forming a paint may be inhibited. If it is within the above range, it is preferable because the viscosity of the aqueous dispersion composition and the physical properties of the coating film will be good.
- the acid value of the anionic group-containing water-soluble polymer (D) can be measured according to JIS K-0070-1992.
- the weight average molecular weight (Mw) of the anionic group-containing water-soluble polymer (D) is preferably 1,500 or more, more preferably 2,000 or more, even more preferably 3,000 or more, It is particularly preferably 5,000 or more, more preferably 7,000 or more, and most preferably 9,000 or more. If it is less than 1,500, the effect of the viscosity modifier during coating may be inhibited. Further, it is preferably 30,000 or less, more preferably 29,000 or less, even more preferably 28,000 or less, particularly preferably 27,000 or less, and even more preferably 26,000 or less. or less, most preferably 25,000 or less. If it exceeds 30,000, the solubility in water may decrease and the effect of reducing viscosity may become small.
- the weight average molecular weight of the anionic group-containing water-soluble polymer (D) can be measured by GPC in an atmosphere at 40°C.
- the solubility of the anionic group-containing water-soluble polymer (D) in water (20°C) is preferably 5% by mass or more, more preferably 10% by mass or more, and 20% by mass or more. is more preferable, and even more preferably 30% by mass or more. Although the upper limit is not particularly limited, it is practically 50% by mass or less.
- the anionic group-containing water-soluble polymer (D) is preferably 0.1 parts by mass or more, more preferably 0.3 parts by mass or more, based on 100 parts by mass of the modified polyolefin (A). It is more preferably 0.5 parts by mass or more, and particularly preferably 0.8 parts by mass or more. Moreover, it is preferably 20 parts by mass or less, more preferably 19 parts by mass or less, even more preferably 18 parts by mass or less, and particularly preferably 17 parts by mass or less. If it is too small, the viscosity-reducing effect may be small, and if it is too large, the water resistance of the coating film may be reduced, and the effect of the viscosity modifier when forming a paint may be inhibited.
- the Z average particle diameter in the aqueous dispersion containing the modified polyolefin (A) is 200 nm or less. It is preferably 150 nm or less, more preferably 120 nm or less, even more preferably 100 nm or less, and particularly preferably 80 nm or less. By being 200 nm or less, it tends to penetrate into the gaps of the propylene base material and provide adhesion (adhesiveness) due to a strong anchor effect, and also improves the fusion properties during baking and improves the peel strength due to improved film-forming properties. improves. Although the lower limit is not particularly defined, it is preferably 30 nm or more because storage stability is improved.
- the viscosity of the aqueous dispersion composition containing the modified polyolefin (A) is preferably 5 mPa ⁇ s or more, more preferably 10 mPa ⁇ s or more. Further, the pressure is preferably 300 mPa ⁇ s or less, more preferably 250 mPa ⁇ s or less.
- the pH of the aqueous dispersion composition of the present invention is preferably 5 or more and 10 or less, more preferably 7 or more, particularly preferably 8.3 or more, and even more preferably 8.5 or more.
- the method for producing the aqueous dispersion composition is not particularly limited, and examples thereof include the following production method. That is, the modified polyolefin (A) and the emulsifier (B) are dissolved in water and one or more solvents selected from the group consisting of ether solvents, alcohol solvents, and aromatic solvents, and a basic substance is added. can be obtained by removing these solvents after cooling.
- the solid content concentration of the aqueous dispersion of the resin composition in the present invention is preferably 10 to 60% by mass, and 20 to 50% by mass, based on the total amount of the aqueous dispersion, from the viewpoint of ease of handling the aqueous dispersion. More preferably, it is 25 to 45% by mass.
- Ether solvents include, but are not particularly limited to, tetrahydrofuran (hereinafter also referred to as THF), propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, etc., and these may be used alone or in combination. The above can be used in combination.
- THF tetrahydrofuran
- propylene glycol monomethyl ether propylene glycol monoethyl ether
- propylene glycol monopropyl ether propylene glycol monopropyl ether
- alcoholic solvents include, but are not limited to, aliphatic alcohols having 1 to 7 carbon atoms, aromatic alcohols, alicyclic alcohols, etc., and these may be used alone or in combination of two or more. can.
- aromatic solvents examples include benzene, toluene, xylene, ethylbenzene, isopropylbenzene, and solvent naphtha, and these can be used alone or in combination of two or more.
- a curing agent may be added to the aqueous dispersion composition of the present invention as necessary.
- the curing agent is not particularly limited, but includes, for example, an aqueous polyfunctional carbodiimide resin, an aqueous dispersion of a polyfunctional isocyanate compound, an aqueous polyfunctional oxazoline resin, a water-soluble silane coupling agent containing a polyfunctional silyl group, and an aqueous melamine compound. etc.
- These curing agents are preferably blended in an amount of 2 to 30 parts by weight based on 100 parts by weight of the resin in the aqueous dispersion composition of the present invention.
- various additives such as fillers, pigments, colorants, antioxidants, etc. may be added to the aqueous dispersion composition of the present invention within a range that does not reduce the effects of the present invention.
- the blending amount of these additives is preferably 150 parts by mass or less, more preferably 140 parts by mass or less, and still more preferably 130 parts by mass or less, based on 100 parts by mass of the resin in the aqueous dispersion composition. It is. Further, the amount is preferably 5 parts by mass or more, more preferably 2 parts by mass or more.
- the aqueous dispersion composition of the present invention can also be used as an adhesive for various polyolefin substrates including polypropylene.
- a paint can be obtained by mixing the aqueous dispersion of the present invention and a pigment dispersion, and can also be used as a paint.
- a laminate can be obtained by bonding base materials together using a coating film obtained by removing the aqueous medium from the aqueous dispersion composition of the present invention as an adhesive layer.
- a coating film obtained by removing the aqueous medium from the aqueous dispersion composition of the present invention can be applied as a paint layer onto a substrate to form a laminate.
- the aqueous dispersion composition of the present invention is not limited to use on polyolefin substrates, but can also be applied to other plastics, wood, metals, etc., for example.
- the polyolefin base material include films, sheets, molded bodies, and the like. There are no special restrictions on the coating method.
- Aqueous dispersion solid content concentration (mass%) 100 - [(sample mass before hot air drying) - (sample mass after hot air drying)] / (sample mass before hot air drying) x 100
- the modified polyolefin (A) was dissolved in chloroform and subjected to FT-IR measurement, and based on the above calibration curve, the amount of acid modification of maleic anhydride was determined from the absorbance of the stretching peak (1780 cm -1 ) of the carbonyl bond of maleic anhydride. I asked for it.
- the melting point and heat of fusion in the present invention are determined by increasing the temperature at a rate of 10°C/min using a differential scanning calorimeter (hereinafter referred to as DSC, manufactured by TA Instruments Japan, Q-2000). This is the value measured from the top temperature of the melting peak when the resin is melted, cooled, and melted again at an elevated temperature.
- DSC differential scanning calorimeter
- Tg glass transition temperature
- the liquid containing the resin was centrifuged to separate and purify the acid-modified propylene-butene copolymer to which maleic anhydride had been grafted, and the ungrafted maleic anhydride and low molecular weight substances. Thereafter, by drying at 70°C under reduced pressure for 5 hours, a maleic anhydride-modified propylene-butene copolymer (PO-1, melting point 72°C, modified amount of maleic anhydride 0.6% by mass, weight average molecular weight 80, 000) was obtained.
- PO-1 melting point 72°C, modified amount of maleic anhydride 0.6% by mass, weight average molecular weight 80, 000
- the liquid containing the resin was centrifuged to separate and purify the acid-modified propylene-butene copolymer to which maleic anhydride had been grafted, and the ungrafted maleic anhydride and low molecular weight substances. Thereafter, by drying under reduced pressure at 70°C for 5 hours, a maleic anhydride-modified propylene-butene copolymer (PO-2, melting point 80°C, modified amount of maleic anhydride 0.6% by mass, weight average molecular weight 80, 000) was obtained.
- PO-2 melting point 80°C, modified amount of maleic anhydride 0.6% by mass, weight average molecular weight 80, 000
- MFR propylene-ethylene copolymer
- the liquid containing the resin was centrifuged to separate and purify the acid-modified propylene-ethylene copolymer graft-polymerized with maleic anhydride, the (poly)maleic anhydride, and the low molecular weight substance. Thereafter, a maleic anhydride-modified propylene-ethylene copolymer was obtained by drying at 70° C. for 5 hours under reduced pressure. Next, 100 parts by mass of the maleic anhydride-modified propylene-ethylene copolymer and 1700 parts by mass of chloroform were placed in a 2 L glass-lined reaction vessel, which was sealed. The liquid in the reaction can was stirred and dispersed while being heated, and the mixture was dissolved at an internal temperature of 120° C.
- a maleic anhydride-modified chlorinated propylene-ethylene mixture was prepared in the same manner as in Production Example 4 except that the amount of maleic anhydride was changed to 20 parts by mass and the amount of di-tert-butyl peroxide was changed to 5 parts by mass.
- a polymer (CPO-2, melting point 75° C., modified amount of maleic anhydride 2.5% by mass, chlorine content 20% by mass, weight average molecular weight 83,500) was obtained.
- Table 1 shows the composition of the aqueous dispersion used in the following Examples and Comparative Examples.
- Example 1 100 parts by mass of modified polyolefin (PO-1), 10 parts by mass of polyoxyethylene laurylamine (B-1) with an EO addition mole number of 10 as an emulsifier, 300 parts by mass of ion-exchanged water, 30 parts by mass of tetrahydrofuran, and 50 parts by mass of toluene were placed in a flask equipped with a stirrer, heated to 90°C, and then heated and dissolved at the same temperature for 1 hour. Next, 3.5 parts by mass of N,N-dimethylethanolamine was added and stirred at the same temperature for 1 hour.
- Example 2 The aqueous dispersion composition was prepared in the same manner as in Example 1, except that the modified polyolefin (A) shown in Table 1 was used, and the amount of polyoxyethylene laurylamine (B-1) with an EO addition mole number of 10 was changed as an emulsifier. I got something. Properties are shown in Table 1.
- Comparative examples 1 and 2 As shown in Table 1, the properties were obtained in the same manner as in Example 1 except that polyoxyethylene oleyl cetyl ether (B-2) with an EO addition mole number of 15 was used as an emulsifier at 15 parts by mass and 35 parts by mass, respectively. An aqueous dispersion composition shown in No. 1 was obtained.
- Comparative examples 3 and 4 The procedure was the same as in Example 1, except that the modified polyolefin (PO-3) was changed to 100 parts by mass, and the added amounts of polyoxyethylene laurylamine (B-1) with an EO addition mole number of 10 were changed to 25 and 45 parts by mass, respectively. Thus, an aqueous dispersion composition having the composition shown in Table 1 was obtained.
- Comparative example 5 The composition was prepared in the same manner as in Example 1, except that the modified polyolefin (CPO-2) was changed to 100 parts by mass, and the amount of polyoxyethylene laurylamine (B-1) with an EO addition mole of 10 was changed to 35 parts by mass. An aqueous dispersion composition shown in Table 1 was obtained.
- Comparative example 6 The table was prepared in the same manner as in Example 1, except that as an emulsifier, polyoxyethylene laurylamine (B-1) with an EO addition mole number of 10 was changed to 5 parts by mass, and N,N-dimethylethanolamine was changed to 0.4 parts by mass. An aqueous dispersion composition shown in No. 1 was obtained.
- ⁇ Preparation of coating composition> To 20 parts by weight of the aqueous dispersion obtained above, 38 parts by mass of the above pigment dispersion liquid and 16 parts by mass of polyester polyurethane dispersion (manufactured by Sanyo Chemical Co., Ltd. UXA-310, solid content 38%) were added, and the mixture was stirred for 10 minutes with a Disper stirrer. . Next, 1.0 parts by weight of BYK-349 as a leveling agent and 2 parts by weight of an alkali swelling thickener (ASE-60 manufactured by Rohm and Haas) were added dropwise and stirred for 15 minutes to obtain a coating composition. The coating composition was evaluated as follows. The results are shown in Table 2.
- the above-prepared coating composition was applied to a polypropylene base material for bumpers (TYC-1175P-G01 Standard Plaque, 150 mm x 1000 mm x 3 mm) using a spray gun so that the dry coating film was 10 ⁇ m, and then heated at 80°C for 10 minutes. It was heated and dried.
- a commercially available water-based base paint (Retan PG WB Eco, manufactured by Kansai Paint Co., Ltd.) was applied with a spray gun to a dry coating thickness of 150 ⁇ m.
- test piece was left to stand for 15 minutes after coating in an environment of 23°C, and then baked and dried in a drying oven at 80°C for 30 minutes, and then the test piece was taken out. After that, the test was left in an environment of 23°C for 72 hours, and then the peel strength of the test piece was measured at a tensile speed of 50 mm/min in an environment of 25°C using Tensilon RTM-100 manufactured by A&D. was measured.
- the test piece After being left to stand for 15 minutes after painting, the test piece was baked and dried in a drying oven at 80°C for 30 minutes, and then the test piece was taken out. After standing for 36 hours in an atmosphere of 25°C, 100 grids were made on the painted surface with a cutter knife at 2mm intervals, and a cellophane adhesive tape was placed on top of the grid and peeled off at an angle of 60°. Repeat peeling 10 times using new cellophane adhesive tape. If there was no change in the painted surface even after 10 repetitions, the score was 10, and the evaluation was A. If peeling occurred at the 10th time, the score was 9 points and the evaluation was B. The following scores were 8, 7, and 6, and the case where peeling occurred on the first try was scored as 0, and the evaluation was C.
- the aqueous dispersion composition of the present invention can provide a coating film that exhibits high peel strength, high adhesion, and good water resistance when baked at low temperatures (80 to 90°C) to polyolefin substrates that are difficult to adhere to. . Therefore, it is possible to contribute to the reduction of CO 2 , which causes global warming, by reducing paint defect rates in water-based coating systems, reducing VOCs, and reducing energy consumption in baking drying ovens.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Paints Or Removers (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
すなわち、本発明の要旨は以下のとおりである。
本発明で用いる変性ポリオレフィン(A)は、プロピレン-αオレフィン共重合体が酸変性されたポリオレフィンである。
本発明で用いる酸変性ポリオレフィンの酸成分としては、α,β-不飽和カルボン酸及びまたはその酸無水物が挙げられる。プロピレン-αオレフィン共重合体に、α,β-不飽和カルボン酸及びその酸無水物の少なくとも1種をグラフトすることにより得られるものが好ましい。
本願発明の水分散体の含有する乳化剤(B)は、窒素含有非イオン系乳化剤である。これを使用することで、塗膜の耐水性が良好になる。窒素含有非イオン系界面活性剤としては、ポリオキシエチレンラウリルアミン、ポリオキシエチレンステアリルアミン、ポリオキシエチレンヤシ油アミン、ポリオキシエチレン牛脂アミン等のポリオキシアルキレンアルキルアミン型、ポリオキシエチレンポリオキシプロピレンモノアミン等のポリオキシアルキレンアミン型、ポリオキシエチレンオレイルアミド、ポリオキシエチレンヤシ油脂肪酸アミド、ポリオキシエチレンラウリルアミド、ポリオキシエチレンステアリルアミド、ポリオキシエチレン牛脂アミド、ポリオキシエチレンヤシ油脂肪酸モノエタノールアミド、ポリオキシエチレンラウリルモノエタノールアミド等のポリオキシアルキレンアルキルアミド型等が挙げられる。これら窒素含有非イオン系乳化剤としてはブリードが少なくピール強度が良好となることからポリオキシエチレンラウリルアミン、ポリオキシエチレンヤシ油アミンが好ましい。
本発明で用いる塩基性物質(C)は、変性ポリオレフィン(A)の酸性基(カルボキシル基)を中和させ、変性ポリオレフィン(A)の分散性を向上させることができる。
本発明に用いるアニオン性基含有水溶性高分子(D)は、水性分散体組成物中の変性ポリオレフィン(A)の粒子表面の電荷を低減することができる。これにより、水性分散体組成物中の変性ポリオレフィン固形分30質量%のときの粘度を500mPa・s以下の範囲で一定にすることができる。
50mlガラス製秤量瓶にサンプルの水性分散体約1gを採り、精秤した。次いでサンプルを採取した秤量瓶を120℃の熱風乾燥機で2時間乾燥させ、取り出した秤量瓶をデシケーターに入れ、室温で30分放置・冷却した。デシケーターから秤量瓶を取り出し、質量を精秤し、熱風乾燥前後の重量変化(下記式)から水性分散体固形分濃度の質量%を算出した。
水性分散体固形分濃度(質量%)=100-[(熱風乾燥前のサンプル質量)-(熱風乾燥後のサンプル質量)]/(熱風乾燥前のサンプル質量)×100
東機産業(株)製“Viscometer TV-22”(E型粘度計)を用い、0.6gのサンプルをローターNo.0.8°(=48’)×R24、レンジH、回転数5rpm、25℃の条件で測定した。
堀場製作所(株)製“pH meter F-52”を用い、25℃での値を測定した。尚、測定器の校正は富士フイルム和光純薬(株)製、フタル酸塩pH標準液(pH:4.01)、中性燐酸塩pH標準液(pH:6.86)、ホウ酸塩pH標準液(pH9.18)を用い、3点測定で実施した。
Malvern社製“ゼータサイザー Nano-ZS Model ZEN3600”を用い、動的光散乱法にて、強度分布による平均粒子径(Z平均粒子径)を測定した。水性分散体組成物の固形分を0.05g/Lの濃度に調整したサンプルを25℃で3回測定し、その平均値とした。
無水マレイン酸で酸変性した場合の酸変性量は、FT-IR(島津製作所社製、FT-IR8200PC)により求めた。まず無水マレイン酸を任意の濃度で溶解させて検量線溶液を作製し、次に検量線溶液のFT-IR測定を行い無水マレイン酸のカルボニル(C=O)結合の伸縮ピーク(1780cm-1)の吸光度より検量線を作成した。変性ポリオレフィン(A)をクロロホルムに溶解させてFT-IR測定を行い、前記検量線をもとに無水マレイン酸のカルボニル結合の伸縮ピーク(1780cm-1)の吸光度より無水マレイン酸の酸変性量を求めた。
本発明における融点、融解熱量は示差走査熱量計(以下、DSC、ティー・エー・インスツルメント・ジャパン製、Q-2000)を用いて、10℃/分の速度で昇温融解、冷却樹脂化して、再度昇温融解した際の融解ピークのトップ温度から測定した値である。
樹脂のガラス転移温度(Tg)(℃)はDSCにより融点の測定と同様の条件にて、再度昇温過程での各ベースラインの延長した直線から縦軸方向に等距離にある直線と、ガラス転移の階段状変化部分の曲線とが交わる点の温度とした。
変性ポリオレフィン(A)の重量平均分子量は日本ウォーターズ社製ゲル浸透クロマトグラフAlliance e2695(以下、GPC、標準物質:ポリスチレン樹脂、移動相:テトラヒドロフラン、カラム:Shodex KF―806 + KF―803、カラム温度:40℃、流速:1.0ml/分、検出器:フォトダイオードアレイ検出器(波長254nm=紫外線))によって測定した値である。
1Lオートクレーブに、プロピレン-ブテン共重合体(プロピレン/ブテン=69/31質量%)100質量部、トルエン300質量部及び無水マレイン酸10質量部を入れ、120℃まで昇温した後、ジ-tert-ブチルパーオキサイド1質量部を加え、1時間撹拌した。その後、得られた反応液を冷却後、多量のメチルエチルケトンが入った容器に注ぎ、樹脂を析出させた。その後、当該樹脂を含有する液を遠心分離することにより、無水マレイン酸がグラフト重合した酸変性プロピレン-ブテン共重合体とグラフトしていない無水マレイン酸および低分子量物とを分離、精製した。その後、減圧下70℃で5時間乾燥させることにより、無水マレイン酸変性プロピレン-ブテン共重合体(PO-1、融点72℃、無水マレイン酸の変性量0.6質量%、重量平均分子量80,000)を得た。
1Lオートクレーブに、プロピレン-ブテン共重合体(プロピレン/ブテン=75/25質量%)100質量部、トルエン300質量部及び無水マレイン酸10質量部を入れ、120℃まで昇温した後、ジ-tert-ブチルパーオキサイド2質量部を加え、1時間撹拌した。その後、得られた反応液を冷却後、多量のメチルエチルケトンが入った容器に注ぎ、樹脂を析出させた。その後、当該樹脂を含有する液を遠心分離することにより、無水マレイン酸がグラフト重合した酸変性プロピレン-ブテン共重合体とグラフトしていない無水マレイン酸および低分子量物とを分離、精製した。その後、減圧下70℃で5時間乾燥させることにより、無水マレイン酸変性プロピレン-ブテン共重合体(PO-2、融点80℃、無水マレイン酸の変性量0.6質量%、重量平均分子量80,000)を得た。
無水マレイン酸の仕込み量を20質量部、ジ-tert-ブチルパーオキサイドを5質量部に変更した以外は製造例1と同様にすることにより、無水マレイン酸変性プロピレン-ブテン共重合体(PO-3、融点 72℃、無水マレイン酸の変性量2.0質量%、重量平均分子量50,000)を得た。
撹拌機を取り付けた1Lオートクレーブに、プロピレン-エチレン共重合体(230℃雰囲気下のMFR=5g/10分)100質量部、トルエン150質量部及び無水マレイン酸10質量部、ジ-tert-ブチルパーオキサイド1質量部を加え、140℃まで昇温した後、更に3時間撹拌した。その後、得られた反応液を冷却後、多量のメチルエチルケトンが入った容器に注ぎ、樹脂を析出させた。その後、当該樹脂を含有する液を遠心分離することにより、無水マレイン酸がグラフト重合した酸変性プロピレン-エチレン共重合体と(ポリ)無水マレイン酸および低分子量物とを分離、精製した。その後、減圧下70℃で5時間乾燥させることにより、無水マレイン酸変性プロピレン-エチレン共重合体を得た。次いで、2Lのグラスライニング製反応缶に、無水マレイン酸変性プロピレン-エチレン共重合体を100質量部、クロロホルムを1700質量部入れ密閉にした。反応缶内の液を撹拌して分散しながら加温し、缶内温度120℃で1時間溶解した。缶内温度を110℃まで冷却した後に、t-ブチルパーオキシ-2-エチルヘキサエノエートを0.5質量部添加し、塩素を70質量部導入した。缶内温度を60℃まで冷却し、クロロホルム1400質量部を留去した後に、安定剤としてp-t-ブチルフェニルグリシジルエーテルを4質量部添加した。その後、乾燥することにより、無水マレイン酸変性塩素化プロピレン-エチレン共重合体(CPO-1、融点75℃、無水マレイン酸の変性量0.8質量%、塩素含有率20質量%、重量平均分子量103,000)を得た。
無水マレイン酸の仕込み量を20質量部、ジ-tert-ブチルパーオキサイドの仕込み量を5質量部に変更した以外は製造例4と同様にすることにより、無水マレイン酸変性塩素化プロピレン-エチレン共重合体(CPO-2、融点75℃、無水マレイン酸の変性量2.5質量%、塩素含有率20質量%、重量平均分子量83,500)を得た。
変性ポリオレフィン(PO-1)を100質量部、乳化剤としてEO付加モル数が10のポリオキシエチレンラウリルアミン(B-1)を10質量部、イオン交換水を300質量部、テトラヒドロフランを30質量部、およびトルエン50質量部を撹拌機付きフラスコに入れ、90℃に昇温した後、同温度で1時間、加熱溶解した。次に、N,N-ジメチルエタノールアミン3.5質量部を添加し、同温度で1時間攪拌した。その後、1時間かけて徐々に40℃まで冷却した後、91kPaの減圧度で有機溶剤を留去したのち、ARUFON UC-3920 1.0質量部添加し、性状が表1に示される水性分散体を得た。
表1に示す変性ポリオレフィン(A)とし、乳化剤としてEO付加モル数が10のポリオキシエチレンラウリルアミン(B-1)の添加量を変更した以外は実施例1と同様にして、水性分散体組成物を得た。性状を表1に示す。
表1に示す通り、乳化剤としてEO付加モル数が15のポリオキシエチレンオレイルセチルエーテル(B-2)をそれぞれ15質量部、35質量部とした以外は実施例1と同様にして、性状が表1に示される水性分散体組成物を得た。
変性ポリオレフィン(PO-3)を100質量部、EO付加モル数が10のポリオキシエチレンラウリルアミン(B-1)の添加量それぞれを25、45質量部に変更した以外は実施例1と同様にして、組成が表1に示される水性分散体組成物を得た。
変性ポリオレフィン(CPO-2)を100質量部、EO付加モル数が10のポリオキシエチレンラウリルアミン(B-1)の添加量を35質量部に変更した以外は実施例1と同様にして、組成が表1に示される水性分散体組成物を得た。
乳化剤としてEO付加モル数が10のポリオキシエチレンラウリルアミン(B-1)を5質量部、N,N-ジメチルエタノールアミンを0.4質量部に変更した以外は実施例1と同様にして表1に示される水性分散体組成物を得た。
水溶性アクリル樹脂4質量部、導電性カーボンブラック2質量部、ルチル型酸化チタン36質量部、イオン交換水を70質量部加え30分撹拌した後、ビーズミルにて30分分散を行った。その後、ウレタン会合型増粘剤を5質量部、レベリング剤2質量部を加え顔料分散液を得た。
上記で得られた水性分散体20重量部に上記顔料分散液を38質量部、ポリエステルポリウレタンディスパージョン(三洋化成製 UXA-310 固形分38%)16質量部加えてディスパー撹拌機で10分攪拌した。次いでレベリング剤としてBYK-349を1.0質量部、アルカリ膨潤型増粘剤(ロームアンドハース製 ASE-60)2重量部を滴下し15分攪拌し塗料組成物を得た。塗料組成物について、以下の評価を行った。結果を表2に示す。
バンパー用ポリプロピレン基材(TYC-1175P-G01 Standard Plaque社製150mm×1000mm×3mm)に上記作製した塗料組成物をスプレーガンにて乾燥塗膜が10μmになるように塗布し、80℃×10分間加熱乾燥した。次に、市販の水性ベース塗料(関西ペイント製レタンPG WBエコ)をスプレーガンにて乾燥塗膜150μmになるように塗布した。その後、該試験体を23℃の環境下で塗装後15分間放置した後、80℃の乾燥炉で30分間焼付乾燥した後、試験片を取り出した。その後、23℃の環境下に72時間試験を放置した後、エー・アンド・デイ社社製のテンシロンRTM-100を用いて、25℃環境下で、引張速度50mm/分における試験片の剥離強度を測定した。
評価基準
A:剥離強度の数値が1000gf / cm以上の場合
B:剥離強度の数値が700以上1000gf / cm未満の場合
C:剥離強度の数値が500以上700gf/cm未満の場合
D:剥離強度の数値が500gf / cm未満の場合
バンパー用ポリプロピレン基材((TYC-1175P-G01 Standard Plaque社製150mm×1000mm×3mm)に上記作製した塗料組成物をスプレーガンにて乾燥塗膜が10μmになるように塗布し、80℃×10分間加熱乾燥した。次に、市販の水性ベース塗料(関西ペイント製レタンPG WBエコ)をスプレーガンにて乾燥塗膜35μmになるように塗布した。その後、該試験体を23℃の環境下で塗装後15分間放置した後、80℃の乾燥炉で30分間焼付乾燥した後、試験片を取り出した。
25℃雰囲気下で36時間静置後、塗装面にカッターナイフにて2mm間隔で100個の碁盤目を作り、その上にセロハン粘着テープを密着させて60°の角度で引き剥がす。新しいセロハン粘着テープを使用して引き剥がしを10回繰り返す。10回繰り返しても塗装面に変化がなかった場合を10点とし、評価はAとした。10回目で剥がれが生じた場合は9点とし、評価はBとした。以下8,7,6点となり1回目で剥がれが生じた場合を0点とし、評価はCとした。
塗膜の密着性の評価と同様の条件で作成した試験片を25℃雰囲気下で36時間静置後、40℃の温水に10日間浸漬させた。塗膜の変化を確認した後、上述の塗膜の密着性の評価を実施した。塗膜に変化が無く、密着性の評価で10点となった場合を良好でAとした。塗膜に変化が無く、密着性の評価で9点となった場合をBとした。塗膜にブリスターが発生したり、密着性の評価で8点以下となった場合を不良でCとした。
上記作製した塗料組成物200gをポリプロピレン製容器に密閉し、40℃×10日静置保管した。その後、回転粘度計(東機産業製TVB-10M)で保管後の粘度を測定。保存前の粘度との変化率を測定した。
評価基準
A:保管前と保管後の粘度変化率が5%未満
B:保管前と保管後の粘度変化率が5%以上10%未満
C:保管前と保管後の粘度変化率が11%以上20%未満
D:保管前と保管後の粘度変化率が20%以上
実施例1~7で得られた水性分散体組成物は、バンパー用ポリプロピレン基材に対して良好なピール強度、良好な密着性、良好な耐水性を有することが示された。一方、比較例1、2では、窒素含有非イオン系乳化剤(B)を使用しなかったため、耐水性とピール強度が劣る結果となった。また比較例3、4では、変性ポリオレフィン(A)の重量平均分子量が60,000以下であったため、耐水性とピール強度が劣る結果となった。また、比較例5では、α,β-不飽和カルボン酸及び/またはその酸無水物で変性された変性量が1.0質量%未満である変性ポリオレフィン(A)を使用しなかったため、耐水性とピール強度が劣る結果となった。さらに比較例6では、変性ポリオレフィン(A)のZ平均粒子径が200nmより大きく、耐水性とピール強度が劣る結果となった。
Claims (11)
- GPCを用いて測定される重量平均分子量が60,000以上であり、且つα,β-不飽和カルボン酸及び/またはその酸無水物で変性された変性量が1.0質量%未満である変性ポリオレフィン(A)、窒素含有非イオン系乳化剤(B)および塩基性物質(C)を含有する水性分散体組成物であり、前記水性分散体組成物のZ平均粒子径が200nm以下であることを特徴とする水性分散体組成物。
- 前記変性ポリオレフィン(A)の融点が60℃~85℃であることを特徴とする請求項1に記載の水性分散体組成物。
- 前記変性ポリオレフィン(A)が塩素を含有しない請求項1に記載の水性分散体組成物。
- 前記窒素含有非イオン系乳化剤(B)の添加量が前記変性ポリオレフィン(A)100質量部に対して10~45量%であることを特徴とする請求項1に記載の水性分散体組成物。
- さらにアニオン性基含有水溶性高分子(D)を含有し、前記アニオン性基含有水溶性高分子(D)の酸価が100mg ~ 500mgKOH/g-resinであり、含有量が前記変性ポリオレフィン(A)100質量部に対して0.1~20質量%であることを特徴とする請求項1に記載の水性分散体組成物。
- 前記変性ポリオレフィン(A)がポリオレフィン成分中のブテン含有量2~35質量%のプロピレン-αオレフィン共重合体であることを特徴とする請求項1に記載の水性分散体組成物。
- 請求項1~6のいずれか一項に記載の水性分散体組成物を含有する塗料。
- 請求項1~6のいずれか一項に記載の水性分散体組成物を含有する接着剤。
- 請求項1~6のいずれか一項に記載の水性分散体組成物から水性媒体を除去した塗膜。
- 請求項7に記載の塗料に由来する層を有する積層体。
- 請求項8に記載の接着剤に由来する層を有する積層体。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202380027819.4A CN118900903B (zh) | 2022-03-31 | 2023-03-24 | 水性分散体组合物 |
| EP23780223.6A EP4484514A4 (en) | 2022-03-31 | 2023-03-24 | AQUEOUS DISPERSION COMPOSITION |
| JP2024512393A JP7505662B2 (ja) | 2022-03-31 | 2023-03-24 | 水性分散体組成物 |
| US18/851,455 US20250109311A1 (en) | 2022-03-31 | 2023-03-24 | Aqueous dispersion composition |
| KR1020247029338A KR102792102B1 (ko) | 2022-03-31 | 2023-03-24 | 수성 분산체 조성물 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022-060484 | 2022-03-31 | ||
| JP2022060484 | 2022-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023190213A1 true WO2023190213A1 (ja) | 2023-10-05 |
Family
ID=88201522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2023/011943 Ceased WO2023190213A1 (ja) | 2022-03-31 | 2023-03-24 | 水性分散体組成物 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20250109311A1 (ja) |
| EP (1) | EP4484514A4 (ja) |
| JP (1) | JP7505662B2 (ja) |
| KR (1) | KR102792102B1 (ja) |
| CN (1) | CN118900903B (ja) |
| TW (1) | TW202348708A (ja) |
| WO (1) | WO2023190213A1 (ja) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06128429A (ja) * | 1992-10-16 | 1994-05-10 | Mitsui Petrochem Ind Ltd | プロピレン系重合体組成物 |
| JP2004285227A (ja) * | 2003-03-24 | 2004-10-14 | Nippon Paper Chemicals Co Ltd | 耐ブロッキング性良好な水性樹脂組成物 |
| JP2005220153A (ja) * | 2004-02-03 | 2005-08-18 | Sumitomo Chemical Co Ltd | 変性ポリオレフィン樹脂組成物エマルジョン |
| JP2011052062A (ja) * | 2009-08-31 | 2011-03-17 | Tosoh Corp | 変性ポリオレフィンエマルション及びその製造方法 |
| JP5023557B2 (ja) | 2006-06-01 | 2012-09-12 | 日本製紙ケミカル株式会社 | 水性変性ポリオレフィン樹脂組成物 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5135662B2 (ja) * | 2004-07-27 | 2013-02-06 | 東洋紡株式会社 | 水性樹脂組成物およびその製造方法 |
| WO2013145884A1 (ja) * | 2012-03-29 | 2013-10-03 | 東洋紡株式会社 | 変性ポリオレフィン水性分散組成物の製造方法 |
| WO2015079919A1 (ja) * | 2013-11-26 | 2015-06-04 | 東洋紡株式会社 | 変性ポリオレフィン含有水性分散体組成物 |
| JP6662039B2 (ja) * | 2013-11-26 | 2020-03-11 | 東洋紡株式会社 | 変性ポリオレフィン含有水性分散体組成物 |
| JP6936794B2 (ja) * | 2016-05-13 | 2021-09-22 | 住友化学株式会社 | 水性分散体、塗膜及び積層体 |
| US12415916B2 (en) * | 2019-03-29 | 2025-09-16 | Nippon Paper Industries Co., Ltd. | Dispersion resin composition |
| JP7616049B2 (ja) * | 2019-04-11 | 2025-01-17 | 東洋紡エムシー株式会社 | 水性樹脂組成物 |
-
2023
- 2023-03-24 CN CN202380027819.4A patent/CN118900903B/zh active Active
- 2023-03-24 EP EP23780223.6A patent/EP4484514A4/en active Pending
- 2023-03-24 JP JP2024512393A patent/JP7505662B2/ja active Active
- 2023-03-24 US US18/851,455 patent/US20250109311A1/en active Pending
- 2023-03-24 KR KR1020247029338A patent/KR102792102B1/ko active Active
- 2023-03-24 WO PCT/JP2023/011943 patent/WO2023190213A1/ja not_active Ceased
- 2023-03-25 TW TW112111303A patent/TW202348708A/zh unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06128429A (ja) * | 1992-10-16 | 1994-05-10 | Mitsui Petrochem Ind Ltd | プロピレン系重合体組成物 |
| JP2004285227A (ja) * | 2003-03-24 | 2004-10-14 | Nippon Paper Chemicals Co Ltd | 耐ブロッキング性良好な水性樹脂組成物 |
| JP2005220153A (ja) * | 2004-02-03 | 2005-08-18 | Sumitomo Chemical Co Ltd | 変性ポリオレフィン樹脂組成物エマルジョン |
| JP5023557B2 (ja) | 2006-06-01 | 2012-09-12 | 日本製紙ケミカル株式会社 | 水性変性ポリオレフィン樹脂組成物 |
| JP2011052062A (ja) * | 2009-08-31 | 2011-03-17 | Tosoh Corp | 変性ポリオレフィンエマルション及びその製造方法 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4484514A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118900903B (zh) | 2025-12-19 |
| KR20240134251A (ko) | 2024-09-06 |
| US20250109311A1 (en) | 2025-04-03 |
| JPWO2023190213A1 (ja) | 2023-10-05 |
| JP7505662B2 (ja) | 2024-06-25 |
| TW202348708A (zh) | 2023-12-16 |
| EP4484514A1 (en) | 2025-01-01 |
| EP4484514A4 (en) | 2025-05-07 |
| KR102792102B1 (ko) | 2025-04-04 |
| CN118900903A (zh) | 2024-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2314648B1 (en) | Dispersion resin composition, and paint composition, ink composition, adhesive composition, and primer composition containing same | |
| CA2672498C (en) | Polyolefin resin dispersion composition and process for producing the same | |
| KR102163899B1 (ko) | 변성 폴리올레핀 수지 | |
| WO2019181336A1 (ja) | 水性分散体組成物 | |
| JP2005126482A (ja) | ポリオレフィン樹脂水性分散体およびその製造方法 | |
| JP6662039B2 (ja) | 変性ポリオレフィン含有水性分散体組成物 | |
| JP2008214414A (ja) | 変性ポリオレフィン分散樹脂組成物およびそれを含有するプライマー | |
| JP7536021B2 (ja) | 変性ポリオレフィン樹脂及び分散体組成物 | |
| WO2020031916A1 (ja) | 変性ポリオレフィン樹脂、水性分散体、及びプライマー | |
| WO2019082903A1 (ja) | 変性ポリオレフィン樹脂組成物及びその製造方法 | |
| JP6662040B2 (ja) | 変性ポリオレフィン含有水性分散体組成物 | |
| JP2015067784A (ja) | 変性ポリオレフィン樹脂水分散体組成物 | |
| CN116917406B (zh) | 水性分散体 | |
| JP7505662B2 (ja) | 水性分散体組成物 | |
| JP2019123791A (ja) | 水性分散体及びその製造方法、塗布物 | |
| WO2020203024A1 (ja) | 水性分散体組成物 | |
| JP2022115493A (ja) | 分散体組成物 | |
| JP7107313B2 (ja) | 共重合ポリオレフィンを含有するエマルションおよび接着剤組成物 | |
| JP2019156887A (ja) | 水性分散体 | |
| WO2023190396A1 (ja) | 変性ポリオレフィン水分散体 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 23780223 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2024512393 Country of ref document: JP |
|
| ENP | Entry into the national phase |
Ref document number: 20247029338 Country of ref document: KR Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202380027819.4 Country of ref document: CN |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 23780223 Country of ref document: EP Ref document number: 2023780223 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 18851455 Country of ref document: US Ref document number: 2401006404 Country of ref document: TH |
|
| ENP | Entry into the national phase |
Ref document number: 2023780223 Country of ref document: EP Effective date: 20240925 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202417079369 Country of ref document: IN |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| WWP | Wipo information: published in national office |
Ref document number: 18851455 Country of ref document: US |

