WO2015178145A1 - 成形体 - Google Patents
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- WO2015178145A1 WO2015178145A1 PCT/JP2015/061988 JP2015061988W WO2015178145A1 WO 2015178145 A1 WO2015178145 A1 WO 2015178145A1 JP 2015061988 W JP2015061988 W JP 2015061988W WO 2015178145 A1 WO2015178145 A1 WO 2015178145A1
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- 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
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- 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
- C08F232/00—Copolymers of cyclic compounds containing no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic ring system
-
- 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
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/04—Monomers containing three or four carbon atoms
-
- 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
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/14—Monomers containing five or more carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- 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
- C08F2420/00—Metallocene catalysts
- C08F2420/02—Cp or analog bridged to a non-Cp X anionic donor
-
- 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
- C08F2420/00—Metallocene catalysts
- C08F2420/04—Cp or analog not bridged to a non-Cp X ancillary anionic donor
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
- C08J2323/20—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
Definitions
- the present invention relates to a molded body.
- Cyclic olefin polymers and cyclic olefin copolymers have low hygroscopicity and high transparency, and are used for optical materials such as optical disk substrates, optical films, and optical fibers. It is used for various purposes including fields.
- a typical COC is a copolymer of a cyclic olefin and ethylene, but the glass transition temperature of the copolymer can be changed by the copolymer composition of the cyclic olefin and ethylene.
- a Tg exceeding 200 ° C. which is difficult with COP, can be realized, but it has a hard and brittle property, has low mechanical strength, and is easy to handle. And there was a problem that workability was bad.
- Copolymerization of cyclic olefin and specific ⁇ -olefin is very different from copolymerization of cyclic olefin and ethylene.
- a chain transfer reaction caused by the specific ⁇ -olefin occurs in the copolymerization of the cyclic olefin and the specific ⁇ -olefin. It was difficult to obtain. Therefore, it has been said that a copolymer of a cyclic olefin and a specific ⁇ -olefin is not suitable for a molding material (for example, see Non-Patent Document 1).
- Patent Document 1 a high molecular weight product composed of a cyclic olefin and a specific ⁇ -olefin is obtained with a specific Ti-based catalyst, Tg is 245 to 262 ° C., low moisture absorption, and a linear expansion coefficient is less than 80 ppm. It is described that a film having excellent physical properties was obtained. However, since the polymerization method disclosed in Patent Document 1 uses a large amount of catalyst and promoter, it is difficult to save resources and the cost for obtaining a copolymer is high. Remained to impair the transparency of the film. Patent Document 1 describes that 92 to 164 g of copolymer can be obtained per 1 g of catalyst.
- Patent Document 2 discloses a film having excellent punching characteristics, but Tg is less than 170 ° C. Moreover, in patent document 2, since a catalyst and a co-catalyst are used in large quantities, it is difficult to save resources, the cost for obtaining the copolymer is expensive, and the transparency and thermal stability of the film are impaired. There was a problem. Patent Document 2 describes that 127 to 275 g of a copolymer can be obtained per 1 g of the catalyst.
- JP 2009-298999 A Japanese Patent No. 5017222
- the conventional production method which has been adopted when producing a copolymer of a cyclic olefin monomer and an ⁇ -olefin monomer, uses a large amount of a catalyst and a cocatalyst, so that it is not only expensive.
- Various properties such as transparency, heat resistance, heat aging resistance, and dielectric properties of a molded body (film, sheet, plate, etc.) obtained from the copolymer with the catalyst and cocatalyst remaining in the copolymer was hurting. Accordingly, there has been a demand for the development of a copolymer capable of obtaining a molded article having excellent properties.
- the present invention has been made in view of the above situation, and an object of the present invention is to provide a molded article such as a film, a sheet, or a plate having excellent transparency, comprising a copolymer obtained from a cyclic olefin monomer and an ⁇ -olefin monomer.
- the present inventors have found that if a copolymer having an aluminum content of a predetermined amount or less is used, a film having particularly excellent transparency can be obtained, and the present invention has been completed. More specifically, the present invention provides the following.
- a transparent conductive laminate including the molded body according to any one of (1) to (4) and a transparent conductive layer.
- molded articles such as films, sheets, plates and the like, which are made of a copolymer obtained from a cyclic olefin monomer and an ⁇ -olefin monomer and are excellent in transparency.
- the molded product according to the present invention includes a structural unit of a cyclic olefin monomer (A) derived from norbornene and a structural unit of a monomer (B) derived from at least one of C4 to C12 ⁇ -olefins.
- Tg is 170 ° C. or higher and an Al content is 50 ppm or lower.
- the copolymer in the present invention comprises a structural unit derived from a cyclic olefin monomer (A) derived from norbornene and a structural unit derived from an ⁇ -olefin monomer (B) derived from a C4 to C12 ⁇ -olefin.
- a copolymer comprises at least a cyclic olefin monomer (A) derived from norbornene and an ⁇ -olefin monomer (B) derived from a C4 to C12 ⁇ -olefin in the presence of a catalyst or the like. It is obtained by polymerizing.
- the glass transition temperature (Tg) of the copolymer in the present invention is 170 ° C. or higher, preferably 200 ° C. or higher, more preferably 230 ° C. or higher, and particularly preferably 260 ° C. or higher.
- Tg glass transition temperature
- the molded body obtained from the copolymer has sufficient heat resistance, and can be suitably used, for example, as a substrate for ITO deposition.
- the glass transition temperature is 260 ° C.
- the molded body obtained from the copolymer has a sufficient heat resistance, so that, for example, deformation, cracking, contact with molten lead-free solder, Since melting or the like hardly occurs, it can be suitably used as a lead-free solder member.
- the upper limit of the glass transition temperature of the copolymer is not particularly limited, but mechanical strength due to ⁇ -olefin copolymerization is reduced because the structural unit derived from ⁇ -olefin in the copolymer decreases as the glass transition temperature increases.
- the glass transition temperature is preferably 350 ° C. or less, and more preferably 330 ° C. or less, because the improvement effect tends to be small.
- the glass transition temperature employ adopts the value measured on the conditions of the temperature increase rate of 20 degree-C / min by DSC method (method of JISK7121).
- the aluminum (hereinafter referred to as “Al”) content of the copolymer in the present invention is 50 ppm or less, preferably 30 ppm or less, more preferably 10 ppm or less.
- Al content of the copolymer is 50 ppm or less, the brittleness normally observed in such a copolymer is suppressed while using a copolymer having a relatively high Tg (for example, 170 ° C. or more). Therefore, it can be expected that a molded body having excellent strength can be obtained.
- the lower limit of the Al content of the copolymer is not particularly limited, but is preferably 0 ppm or more, more preferably 0.5 ppm or more.
- the method for setting the Al content of the copolymer to 50 ppm or less is not particularly limited, but can be easily realized by using a catalyst and a cocatalyst described later during the polymerization.
- the amount of the catalyst and the cocatalyst used can be reduced (for example, the amount of the cocatalyst used is 0.0001 parts by mass or more based on Al with respect to 100 parts by mass of the cyclic olefin monomer. .0000 parts by mass or less).
- the amount of the catalyst and the cocatalyst used is large, the transparency of the molded product obtained from the copolymer is impaired, but according to the present invention, the amount of the catalyst and the cocatalyst used may be small. Can be obtained at low cost.
- the number average molecular weight of the copolymer in the present invention is preferably 20,000 or more and 200,000 or less, more preferably 30,000 or more and 150,000 or less.
- Tg glass transition temperature
- a number average molecular weight means the number average molecular weight of polystyrene conversion measured by gel permeation chromatography.
- the copolymer in the present invention can be obtained by polymerizing a cyclic olefin monomer (A) and an ⁇ -olefin monomer (B) described later in the presence of an arbitrary catalyst.
- a titanocene catalyst or a non-crosslinked ketimido half-titanocene catalyst is preferable. Below, these preferable catalysts are demonstrated.
- titanocene catalyst It does not specifically limit as a titanocene catalyst, A well-known thing can be used and it is preferable to use a half titanocene catalyst.
- a titanocene catalyst can be used individually by 1 type or in combination of 2 or more types.
- As a titanocene catalyst what is represented by following formula (1) is mentioned, for example.
- R 1 to R 3 are each independently an alkyl group having 1 to 6 carbon atoms or an aryl group having 6 to 12 carbon atoms. Specific examples thereof include methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, t-butyl group, alkyl group such as pentyl group, hexyl group, cyclopentyl group, cyclohexyl group; phenyl group, biphenyl group And aryl groups such as a phenyl group or biphenyl group having the alkyl group as a substituent, a naphthyl group, and a naphthyl group having the alkyl group as a substituent.
- R 4 and R 5 are each independently an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, or a halogen atom, and specifically includes a fluorine atom, a chlorine atom, a bromine atom, iodine Halogen atoms such as atoms; methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, t-butyl group, pentyl group, hexyl group, heptyl group, octyl group, cyclopentyl group, cyclohexyl group, the above halogen atom
- aryl groups having a phenyl group, a biphenyl group, a naphthyl group, the above halogen atom or an alkyl group as a substituent.
- R 6 to R 13 each independently have a hydrogen atom, an alkyl group having 1 to 12 carbon atoms, an aryl group having 6 to 12 carbon atoms, or a monovalent hydrocarbon group having 1 to 12 carbon atoms as a substituent. It may be a silyl group. Specific examples of the alkyl group having 1 to 12 carbon atoms include methyl, ethyl, propyl, isopropyl, butyl, isobutyl, t-butyl, pentyl, hexyl, heptyl, octyl, and cyclopentyl. Group, cyclohexyl group and the like.
- aryl group having 6 to 12 carbon atoms include a phenyl group, a biphenyl group, a naphthyl group, and these aryl groups having the above alkyl group as a substituent.
- silyl group having a monovalent hydrocarbon group having 1 to 12 carbon atoms as a substituent include methyl, ethyl, propyl, isopropyl, butyl, isobutyl, t-butyl, pentyl
- a silyl group having an alkyl group having 1 to 12 carbon atoms such as a hexyl group, a heptyl group, an octyl group, a cyclopentyl group, and a cyclohexyl group as a substituent.
- titanocene catalyst represented by the general formula (1) examples include (isopropylamide) dimethyl-9-fluorenylsilane titanium dimethyl, (isobutylamide) dimethyl-9-fluorenylsilane titanium dimethyl, (t-butylamide).
- T-Butylamido dimethyl-9-fluorenylsilane titanium dimethyl ((t-BuNSiMe 2 Flu) TiMe 2 ) is preferred.
- (T-BuNSiMe 2 Flu) TiMe 2 is a titanium complex represented by the following formula (2). For example, it can be easily synthesized based on the description of “Macromolecules, Vol. 31, 3184, 1998”. Can do.
- Me represents a methyl group
- t-Bu represents a tert-butyl group
- Non-crosslinked ketimido type half titanocene catalyst (Non-crosslinked ketimido type half titanocene catalyst)
- the non-crosslinked ketimido type half titanocene catalyst is not particularly limited, and known ones can be used.
- the said half titanocene catalyst can be used individually by 1 type or in combination of 2 or more types.
- Examples of the non-crosslinked ketimido half-titanocene catalyst include those represented by the following formula (3).
- R 1 is a substituent represented by the following formula (4)
- R 2 is a ketimide group represented by the following formula (5) or (6) or a phenoxy group represented by the following formula (7).
- R 3 and R 4 independently represent a halogen atom or an alkyl group.
- R 5 represents an alkyl group, and n is an integer from 0 to 5.
- R 6 and R 7 independently represent an alkyl group or a phenyl group.
- R 8 and R 9 independently represent an alkyl group or a phenyl group.
- R 10 , R 11 , R 12 , R 13 , and R 14 independently represent a hydrogen atom, an alkyl group, or a phenyl group.
- R 3 and R 4 include halogen atoms such as fluorine atom, chlorine atom and bromine atom; alkyl groups having 1 to 4 carbon atoms such as methyl group, ethyl group and propyl group, with chlorine atom being preferred. .
- R 5 include alkyl groups having 1 to 5 carbon atoms such as methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, tert-butyl group, pentyl group and neopentyl group.
- a tert-butyl group is preferred.
- R 6 and R 7 include alkyl groups having 1 to 5 carbon atoms such as methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, tert-butyl group, pentyl group and neopentyl group. And a tert-butyl group is preferable.
- R 8 and R 9 include alkyl groups having 1 to 5 carbon atoms such as methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group, tert-butyl group, pentyl group, and neopentyl group. Examples thereof include a phenyl group, and a tert-butyl group and a phenyl group are preferable.
- R 10 , R 11 , R 12 , R 13 , and R 14 include hydrogen atoms and carbon such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, and tert-butyl groups. Examples thereof include an alkyl group of 1 to 4 and a phenyl group. R 10 and R 14 are preferably isopropyl groups, and R 12 and R 13 are preferably hydrogen atoms.
- the copolymer in the present invention is more easily obtained when a promoter comprising alkylaluminoxane is used together with the above catalyst.
- the above promoters can be used alone or in combination of two or more.
- the alkylaluminoxane is not particularly limited, and examples thereof include compounds represented by the following formula (10) or (11).
- the alkylaluminoxane represented by the following formula (10) or (11) is a product obtained by the reaction of trialkylaluminum and water.
- R represents an alkyl group having 1 to 4 carbon atoms
- n represents an integer of 0 to 40, preferably 2 to 30.
- alkylaluminoxane examples include methylaluminoxane and modified methylaluminoxane in which a part of the methyl group of methylaluminoxane is substituted with another alkyl group.
- modified methylaluminoxane for example, a modified methylaluminoxane having an alkyl group having 2 to 4 carbon atoms such as an ethyl group, a propyl group, an isopropyl group, a butyl group, and an isobutyl group as an alkyl group after substitution is preferable.
- a modified methylaluminoxane in which a part of the group is substituted with an isobutyl group is more preferable.
- alkylaluminoxane examples include methylaluminoxane, ethylaluminoxane, propylaluminoxane, butylaluminoxane, isobutylaluminoxane, methylethylaluminoxane, methylbutylaluminoxane, methylisobutylaluminoxane and the like. Among them, methylaluminoxane and methylisobutylaluminoxane are preferable.
- Alkylaluminoxane can be prepared by a known method. Moreover, as an alkylaluminoxane, you may use a commercial item. Examples of commercially available products of alkylaluminoxane include MMAO-3A, TMAO-200 series, TMAO-340 series (all manufactured by Tosoh Finechem Co., Ltd.) and methylaluminoxane solution (manufactured by Albemarle).
- the chain transfer agent used in the present invention is a compound having chain transfer ability.
- a chain transfer agent can be used individually by 1 type or in combination of 2 or more types.
- the chain transfer agent is not particularly limited, and a known compound having chain transfer ability can be used, and examples thereof include alkylaluminum.
- alkylaluminum include a compound represented by the following general formula (12). (R 10 ) z AlX 3-z (12) (Wherein R 10 is an alkyl group having 1 to 15 carbon atoms, preferably 1 to 8 carbon atoms, X is a halogen atom or a hydrogen atom, and z is an integer of 1 to 3.)
- alkyl group having 1 to 15 carbon atoms examples include a methyl group, an ethyl group, an n-propyl group, an isopropyl group, an isobutyl group, and an n-octyl group.
- alkylaluminum examples include trialkylaluminum such as trimethylaluminum, triethylaluminum, triisopropylaluminum, tri-n-butylaluminum, triisobutylaluminum and trisec-butylaluminum; dialkylaluminum such as dimethylaluminum chloride and diisobutylaluminum chloride Halide; Dialkylaluminum hydride such as diisobutylaluminum hydride; Dialkylaluminum alkoxide such as dimethylaluminum methoxide.
- trialkylaluminum such as trimethylaluminum, triethylaluminum, triisopropylaluminum, tri-n-butylaluminum, triisobutylaluminum and trisec-butylaluminum
- dialkylaluminum such as dimethylaluminum chloride and diisobutylaluminum chloride Halide
- Cyclic olefin monomer (A) Examples of the cyclic olefin monomer (A) derived from norbornene include norbornene and substituted norbornene, and norbornene is preferable.
- the said cyclic olefin monomer (A) can be used individually by 1 type or in combination of 2 or more types.
- the substituted norbornene is not particularly limited, and examples of the substituent that the substituted norbornene has include a halogen atom, a monovalent or divalent hydrocarbon group.
- Specific examples of the substituted norbornene include those represented by the following general formula (I).
- R 1 to R 12 may be the same or different and are each selected from the group consisting of a hydrogen atom, a halogen atom, and a hydrocarbon group; R 9 and R 10 , R 11 and R 12 may be integrated to form a divalent hydrocarbon group, R 9 or R 10 and R 11 or R 12 may form a ring with each other.
- R 1 to R 12 in the general formula (I) may be the same or different and are selected from the group consisting of a hydrogen atom, a halogen atom, and a hydrocarbon group.
- R 1 to R 8 include, for example, a hydrogen atom; a halogen atom such as fluorine, chlorine and bromine; an alkyl group having 1 to 20 carbon atoms, and these may be different from each other. , May be partially different or all may be the same.
- R 9 to R 12 include, for example, a hydrogen atom; a halogen atom such as fluorine, chlorine and bromine; an alkyl group having 1 to 20 carbon atoms; a cycloalkyl group such as a cyclohexyl group; a phenyl group and tolyl Group, ethylphenyl group, isopropylphenyl group, naphthyl group, anthryl group and the like substituted or unsubstituted aromatic hydrocarbon group; benzyl group, phenethyl group, and other aralkyl groups in which an alkyl group is substituted with an aryl group These may be different from each other, may be partially different, or all may be the same.
- R 9 and R 10 or R 11 and R 12 are integrated to form a divalent hydrocarbon group
- alkylidene groups such as an ethylidene group, a propylidene group, and an isopropylidene group. Can be mentioned.
- the formed ring may be monocyclic or polycyclic, or may be a polycyclic ring having a bridge.
- a ring having a double bond, or a ring composed of a combination of these rings may be used.
- these rings may have a substituent such as a methyl group.
- substituted norbornene represented by the general formula (I) include 5-methyl-bicyclo [2.2.1] hept-2-ene, 5,5-dimethyl-bicyclo [2.2.1] hepta- 2-ene, 5-ethyl-bicyclo [2.2.1] hept-2-ene, 5-butyl-bicyclo [2.2.1] hept-2-ene, 5-ethylidene-bicyclo [2.2.
- Tricyclo [4.3.0.1 2,5 ] deca-3,7-diene (common name: dicyclopentadiene), tricyclo [4.3.0.1 2,5 ] dec-3-ene; tricyclo [ 4.4.0.1 2,5 ] undeca-3,7-diene or tricyclo [4.4.0.1 2,5 ] undeca-3,8-diene or a partially hydrogenated product thereof (or cyclopentadiene) Tricyclo [4.4.0.1 2,5 ] undec-3-ene; 5-cyclopentyl-bicyclo [2.2.1] hept-2-ene, 5-cyclohexyl-bicyclo [2.2.1] hept-2-ene, 5-cyclohexenylbicyclo [2.2.1] hept-2-ene, 5-phenyl-bicyclo [2.2.1] hept-2-ene A cyclic olefin of the ring;
- Tetracyclo [4.4.0.1 2,5 . 1 7,10 ] dodec-3-ene also simply referred to as tetracyclododecene
- 8-methyltetracyclo [4.4.0.1 2,5 . 1 7,10 ] dodec-3-ene 8-ethyltetracyclo [4.4.0.1 2,5 . 1 7,10 ] dodec-3-ene
- 8-methylidenetetracyclo 4.4.0.1 2,5 . 1 7,10 ] dodec-3-ene
- alkyl-substituted norbornene eg, bicyclo [2.2.1] hept-2-ene substituted with one or more alkyl groups
- alkylidene-substituted norbornene eg, bicyclo substituted with one or more alkylidene groups
- [2.2.1] hept-2-ene) preferably 5-ethylidene-bicyclo
- hept-2-ene common name: 5-ethylidene-2-norbornene, or simply ethylidene norbornene Is particularly preferred.
- ⁇ -olefin monomer (B) examples include C4 to C12 ⁇ -olefin and C4 to C12 ⁇ having at least one substituent such as a halogen atom. -Olefins, and C4 to C12 ⁇ -olefins are preferred.
- the C4 to C12 ⁇ -olefin is not particularly limited.
- Examples include ethyl-1-hexene, 1-octene, 1-decene, 1-dodecene and the like. Of these, 1-hexene, 1-octene and 1-decene are preferable.
- the conditions of the polymerization step for obtaining a copolymer from the above monomer are not particularly limited as long as the desired copolymer is obtained, and known conditions can be used, and polymerization temperature, polymerization pressure, polymerization time, etc. Adjust as appropriate. Moreover, the usage-amount of each component is illustrated as follows.
- the addition amount of the ⁇ -olefin monomer (B) is preferably 1 part by mass or more and 500 parts by mass or less, and preferably 10 parts by mass or more and 300 parts by mass or less with respect to 100 parts by mass of the cyclic olefin monomer (A). More preferred.
- the amount of titanocene catalyst used is preferably 0.00001 parts by mass or more and 0.05 parts by mass or less, and 0.0001 parts by mass or more and 0.03 parts by mass or less with respect to 100 parts by mass of the cyclic olefin monomer (A). More preferably.
- the amount of the non-crosslinked ketimido half-titanocene catalyst used is preferably 0.00001 parts by mass or more and 0.05 parts by mass or less, and 0.0001 parts by mass or more and 0 or more by mass with respect to 100 parts by mass of the cyclic olefin monomer (A). More preferred is 0.03 parts by mass or less.
- the amount of the alkylaluminoxane used is preferably 0.0001 parts by mass or more and 5 parts by mass or less, and 0.01 parts by mass or more and 3 parts by mass or less based on Al with respect to 100 parts by mass of the cyclic olefin monomer (A). It is more preferable.
- the amount of the chain transfer agent used is preferably 0.1 parts by mass or more and 10 parts by mass or less, and preferably 0.3 parts by mass or more and 5 parts by mass or less with respect to 100 parts by mass of the cyclic olefin monomer (A). More preferred.
- the molded body according to the present invention can be obtained by molding the above copolymer by a known molding method. Although it does not specifically limit as a molded object, A film, a sheet
- the molded body according to the present invention is preferably a transparent film from the viewpoint that the effects of the present invention are easily achieved.
- the transparent film according to the present invention can be formed into a film by the conventionally known solution casting method, spin coating method, hot pressing method, T-die method or calendar method using the above copolymer.
- the Tg of the copolymer becomes higher, melt molding becomes more difficult, and therefore, when a high Tg copolymer is used, it is preferable to employ a solution casting method, a spin coating method, or the like.
- a conventionally well-known antioxidant etc. can be added.
- the molding conditions of the transparent film according to the present invention are not particularly limited, but the following conditions can be exemplified.
- the copolymer is dissolved in an appropriate solvent to obtain a solution with an appropriate concentration, and this solution is poured onto an appropriate substrate or applied and dried, and then the obtained transparent
- the solvent used for preparing the solution include aromatic hydrocarbon solvents such as benzene, toluene and xylene, aliphatic hydrocarbon solvents such as cyclohexane, hexane and methylcyclohexane, and halogenated hydrocarbons such as dichloromethane and chloroform.
- aromatic hydrocarbon solvents such as benzene, toluene and xylene
- aliphatic hydrocarbon solvents such as cyclohexane, hexane and methylcyclohexane
- halogenated hydrocarbons such as dichloromethane and chloroform.
- a system solution can be mentioned.
- the concentration of the copolymer in the solution is usually 0.1 to 90% by mass, preferably 1 to 50% by mass, and more preferably 5 to 35% by mass. When the concentration of the copolymer is lower than the above range, a film having a sufficient thickness may not be obtained. When the copolymer concentration is higher than the above range, the viscosity of the solution becomes too high, and a film having a uniform thickness and surface state is obtained. It may not be obtained.
- the viscosity of the solution is usually 1 to 1,000,000 mPa ⁇ s at room temperature, preferably 10 to 100,000 mPa ⁇ s, more preferably 100 to 50,000 mPa ⁇ s, and particularly preferably 1,000 to 40,000. 000 mPa ⁇ s. Examples of equipment used in the solution casting method include metal drums, steel belts, polyester films such as polyethylene terephthalate (PET) and polyethylene naphthalate (PEN), and belts made of polytetrafluoroethylene.
- PET poly
- the thickness of the transparent film according to the present invention may be adjusted to 5 ⁇ m or more and 300 ⁇ m or less.
- the transparent film according to the present invention is excellent in transparency.
- the transparency of the transparent film can be determined by measuring haze according to JIS K7136 method.
- the transparent film according to the present invention may have a haze measured according to JIS K7136 method of 0.1 to 1.0%.
- the transparent film according to the present invention can be preferably used, for example, for optical applications, medical applications, packaging applications, electrical / electronic component applications, and industrial / industrial component applications.
- a laminate may be prepared by forming a transparent conductive layer on the surface of the molded body according to the present invention.
- the laminate including at least the molded body according to the present invention and the transparent conductive layer is hereinafter referred to as “transparent conductive laminate”.
- the transparent conductive layer is usually laminated on the whole or a part of one surface of the molded body according to the present invention, but may be laminated on both surfaces of the molded body according to the present invention.
- a transparent conductive layer may be laminated
- the transparent conductive layer is not particularly limited as long as a conventional transparent conductive layer used for a transparent electrode or the like can be used, is transparent, and has conductivity.
- the transparent conductive layer may be a transparent conductive layer or the like formed from any conductive polymer, but from the viewpoint of easily obtaining a transparent conductive laminate that can be formed at a high temperature and has excellent heat resistance.
- a transparent conductive layer formed from is preferred.
- the conductive inorganic compound include metal oxides [eg, indium oxide (InO 2 , In 2 O 3 , In 2 O 3 —SnO 2 composite oxide (ITO), etc.), tin oxide (SnO 2 , SnO 2).
- conductive inorganic compounds can be used singly or in combination of two or more.
- metal oxides are preferable and indium oxides such as ITO are more preferable from the viewpoint that a transparent conductive laminate excellent in transparency and conductivity is easily obtained.
- the proportion of tin oxide (SnO 2 ) is not particularly limited, but it is 5% by mass or more based on the total composite oxide. Preferably, it is 5 mass% or more and 20 mass% or less, More preferably, it is 6 mass% or more and 15 mass% or less, More preferably, it is 7 mass% or more and 12 mass% or less.
- a highly crystalline transparent conductive film can be obtained using ITO having a tin oxide ratio of about 10% by mass.
- the transparent conductive layer can be formed by using a conductive inorganic compound or the like by a conventional method such as sputtering, vapor deposition, chemical vapor deposition, or the like, and sputtering is usually employed.
- a transparent conductive layer may be, for example, a transparent conductive layer described in JP-A-2009-76544, Japanese Patent No. 4165173, JP-A-2004-14984, and the like.
- the transparent conductive layer formed by sputtering is easy to form a uniform thin film, and is also processed under a vacuum condition and easily maintains high conductivity of the obtained transparent conductive layer. preferable.
- the transparent conductive laminate of the present invention has a low light scattering property and can realize a low haze (preferably 5% or less, more preferably 0.1 to 5%).
- the haze can be measured in accordance with JIS K7136 method, and can be measured in detail by the method described in Examples described later.
- Catalyst A [(t-BuNSiMe 2 Flu) TiMe 2 ]
- Cocatalyst B 9.0% by mass (as Al atom content) TMAO-211 toluene solution (methylaluminoxane solution, manufactured by
- Table 4 shows the number average molecular weight, Tg, presence / absence of decalcification, and Al content of each copolymer.
- the values of “parts” in Tables 1 and 2 are values for 100 parts of 2-norbornene. Moreover, about the promoter A and the promoter B in Table 2, the value of "part” is a value as a toluene solution.
- Total light transmittance The total light transmittance of each transparent film was measured according to JIS K7361-1. Specifically, a D65 fluorescent lamp was used as a light source, and the total light transmittance of each transparent film was measured using a haze meter NDH-5000W (manufactured by Nippon Denshoku Industries Co., Ltd.). The results are shown in Table 4.
- the proportion of the copolymer obtained is high with respect to the amount of catalyst used. Moreover, a film with low haze and high transparency can be obtained.
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- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
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Abstract
Description
C4~C12のα-オレフィンの少なくとも1つから誘導されるモノマー(B)の構造単位と、を含む共重合体であって、
Tgが170℃以上であり、かつ、Al含量が50ppm以下である共重合体からなる成形体。
本発明における共重合体は、ノルボルネンから誘導される環状オレフィンモノマー(A)由来の構造単位と、C4~C12のα-オレフィンから誘導されるα-オレフィンモノマー(B)由来の構造単位と、を含む。このような共重合体は、触媒等の存在下で、少なくとも、ノルボルネンから誘導される環状オレフィンモノマー(A)と、C4~C12のα-オレフィンから誘導されるα-オレフィンモノマー(B)とを重合させることで得られる。
チタノセン触媒としては、特に限定されず、公知のものを使用することができ、ハーフチタノセン触媒を用いることが好ましい。チタノセン触媒は、1種単独で又は2種以上組み合わせて使用することができる。
チタノセン触媒としては、例えば、下記式(1)で表されるものが挙げられる。
非架橋のケチミド型ハーフチタノセン触媒としては、特に限定されず、公知のものを使用することができる。上記ハーフチタノセン触媒は、1種単独で又は2種以上組み合わせて使用することができる。
非架橋のケチミド型ハーフチタノセン触媒としては、例えば、下記式(3)で表されるものが挙げられる。
(式中、R6及びR7は独立にアルキル基又はフェニル基を示す。)
本発明における共重合体は、上記の触媒とともに、アルキルアルミノキサンからなる助触媒を使用するとより容易に得られやすい。上記助触媒は、1種単独で又は2種以上組み合わせて使用することができる。
アルキルアルミノキサンとしては、特に限定されず、例えば、下記式(10)又は(11)で表される化合物が挙げられる。下記式(10)又は(11)で表されるアルキルアルミノキサンは、トリアルキルアルミニウムと水との反応により得られる生成物である。
本発明において用いられる連鎖移動剤は、連鎖移動能を有する化合物である。連鎖移動剤は、1種単独で又は2種以上組み合わせて使用することができる。
(R10)zAlX3-z (12)
(式中、R10は炭素数が1~15、好ましくは1~8のアルキル基であり、Xはハロゲン原子又は水素原子であり、zは1~3の整数である。)
ノルボルネンから誘導される環状オレフィンモノマー(A)としては、例えば、ノルボルネン及び置換ノルボルネンが挙げられ、ノルボルネンが好ましい。上記環状オレフィンモノマー(A)は、1種単独で又は2種以上組み合わせて使用することができる。
R9とR10、R11とR12は、一体化して2価の炭化水素基を形成してもよく、
R9又はR10と、R11又はR12とは、互いに環を形成していてもよい。
また、nは、0又は正の整数を示し、
nが2以上の場合には、R5~R8は、それぞれの繰り返し単位の中で、それぞれ同一でも異なっていてもよい。
ただし、n=0の場合、R1~R4及びR9~R12の少なくとも1個は、水素原子ではない。)
C4~C12のα-オレフィンの少なくとも1つから誘導されるモノマー(B)としては、例えば、C4~C12のα-オレフィンや、ハロゲン原子等の少なくとも1種の置換基を有するC4~C12のα-オレフィンが挙げられ、C4~C12のα-オレフィンが好ましい。
上記モノマーから共重合体を得るための重合工程の条件は、所望の共重合体が得られる限り、特に限定されず、公知の条件を用いることができ、重合温度、重合圧力、重合時間等は適宜調整される。また、各成分の使用量は、以下のとおりに例示される。
α-オレフィンモノマー(B)の添加量は、環状オレフィンモノマー(A)100質量部に対し、1質量部以上500質量部以下であることが好ましく、10質量部以上300質量部以下であることがより好ましい。
チタノセン触媒の使用量は、環状オレフィンモノマー(A)100質量部に対し、0.00001質量部以上0.05質量部以下であることが好ましく、0.0001質量部以上0.03質量部以下であることがより好ましい。
非架橋のケチミド型ハーフチタノセン触媒の使用量は、環状オレフィンモノマー(A)100質量部に対し、0.00001質量部以上0.05質量部以下であることが好ましく、0.0001質量部以上0.03質量部以下であることがより好ましい。
アルキルアルミノキサンの使用量は、環状オレフィンモノマー(A)100質量部に対し、Al基準で0.0001質量部以上5質量部以下であることが好ましく、0.01質量部以上3質量部以下であることがより好ましい。
連鎖移動剤の使用量は、環状オレフィンモノマー(A)100質量部に対し、0.1質量部以上10質量部以下であることが好ましく、0.3質量部以上5質量部以下であることがより好ましい。
本発明に係る成形体は、上記の共重合体を、公知の成形方法によって成形することで得られる。成形体としては、特に限定されないが、フィルム、シート、板等が挙げられる。本発明に係る成形体は、本発明の効果が奏されやすいという観点から、透明フィルムであることが好ましい。
本発明に係る透明フィルムは、上記共重合体を使用して、従来公知の溶液キャスト法、スピンコート法、熱プレス法、Tダイ法やカレンダー法によってフィルム成形することができる。ただし、共重合体のTgが高くなるほど溶融成形が困難になるため、高Tg共重合体を使用する場合は、溶液キャスト法、スピンコート法等を採用することが好ましい。また、高温での成形加工の際は、共重合体が酸化されることを防ぐため、従来公知の酸化防止剤等を添加することができる。
本発明に係る成形体には、その表面に透明導電層を形成し、積層体を調製してもよい。本発明に係る成形体と、透明導電層とを少なくとも含む積層体を、以下、「透明導電性積層体」という。
(実施例1~7及び比較例2)
乾燥したガラス反応器に、表1に記載された各モノマー、及び表2に記載された触媒及び助触媒を加えた。なお、触媒及び助触媒は、それぞれトルエンに溶解させた状態で反応器に加えた。表3に示す重合温度及び重合時間で、反応器内を撹拌して重合を継続した後、2-プロパノール1質量部を添加して反応を終了させた。次いで、得られた重合反応液に表3に記載された濃塩酸を室温で添加し30分間撹拌した後、溶液量(体積)の1/3量のイオン交換水を添加し、さらに10分間撹拌した。得られた重合反応液と水層の混合物を分液ロートに移し、水層を分離、廃棄した。次いで、重合反応液が入った分液ロートに先と同量のイオン交換水を添加して重合反応液を洗浄した後、水層を分離した。イオン交換水による重合反応液の洗浄を数回繰り返して水層が中性になった後、重合反応液を多量のメタノールに注いで重合体を完全に析出させ、濾別及び洗浄を行った後、60℃で1日間以上減圧乾燥して各共重合体を得た。得られた共重合体の重量を測定した(表3中の「収量」)。使用した触媒量に対する得られた共重合体の割合を算出した(表3中の「g(共重合体)/g(触媒)」)。
乾燥したガラス反応器に、表1に記載された各モノマー、及び表2に記載された触媒及び助触媒を加えた。なお、触媒及び助触媒は、それぞれトルエンに溶解させた状態で反応器に加えた。表3に示す重合温度及び重合時間で、反応器内を撹拌して重合を継続した後、2-プロパノール1質量部を添加して反応を終了させた。次いで、得られた重合反応液を多量の塩酸酸性メタノールに注いで重合体を完全に析出させ、濾別及び洗浄を行った後、60℃で1日間以上減圧乾燥して各共重合体を得た。得られた共重合体の重量測定した(表3中の「収量」)。使用した触媒量に対する得られた共重合体の割合を算出した(表3中の「g(共重合体)/g(触媒)」)。
2-ノルボルネン・エチレン共重合体(TOPAS Advanced Polymers,GmbH社製「TOPAS(登録商標)6017S-04」)を用いた。
触媒A:[(t-BuNSiMe2Flu)TiMe2]
触媒B:CpTiCl2(N=C(t-Bu)2)
触媒C:(t-BuC5H4)TiCl2(N=C(t-Bu)2)
助触媒A:6.5質量%(Al原子の含有量として)MMAO-3Aトルエン溶液([(CH3)0.7(iso-C4H9)0.3AlO]nで表されるメチルイソブチルアルミノキサンの溶液、東ソー・ファインケム(株)製、全Al量に対して6mol%のトリメチルアルミニウムを含有する)
助触媒B:9.0質量%(Al原子の含有量として)TMAO-211トルエン溶液(メチルアルミノキサンの溶液、東ソー・ファインケム(株)製、全Al量に対して26mol%のトリメチルアルミニウムを含有する)
助触媒C:トリイソブチルアルミニウム
助触媒D:ジメチルアニリウム テトラキス(ペンタフルオロフェニル)ボレート
各共重合体20質量部、トルエン80質量部を密閉容器に入れ、ゆっくり撹拌しながら24時間かけて各共重合体を溶解させた。得られた溶液を10μmメッシュで加圧ろ過した後、さらに24時間静置し、溶液中の泡を除いた。次いで、バーコーターを用いて、PET基材(東レ株式会社製、商品名「T-60」)の表面に、各溶液(溶液温度20℃)を流延した。流延後、PET基材を密閉し、表面を均一にする(レベリングする)ために1分間静置した。レベリング後、PET基材を、温風乾燥機によって60℃で5分間乾燥させた後、PET基材からフィルムを剥離した。次いで、該フィルムをステンレス製の枠に固定し、減圧乾燥機によって減圧した状態で、210℃で30分間乾燥させ、透明フィルム(膜厚100μm)を得た。得られた各透明フィルムを、下記の試験に供した。
各透明フィルムの全光線透過率を、JIS K7361-1法に従って測定した。具体的には、D65蛍光ランプを光源として使用し、各透明フィルムの全光線透過率を、ヘーズメータNDH-5000W(日本電色工業株式会社製)を用いて測定した。その結果を表4に示す。
各透明フィルムのヘーズを、JIS K7136法に従って測定した。具体的には、D65蛍光ランプを光源として使用し、各透明フィルムのヘーズを、ヘーズメータNDH-5000W(日本電色工業株式会社製)を用いて測定した。その結果を表4に示す。
各透明フィルムを2号形ダンベル状に打ち抜き、JIS K7161に準拠し、温度25℃、湿度50%RHの試験環境にて、引張圧縮試験機(株式会社オリエンテック製、商品名「テンシロンUCT-5T」)を用い、引張り速度20mm/分の条件で引張試験を行った。その結果に基づき、応力-ひずみ曲線を得た。得られた応力-ひずみ曲線から、各透明フィルムの弾性率、最大点伸度、引張り強度を求めた。その結果を表4に示す。
各透明フィルムを1×10cm角に裁断して試料片を調製し、耐屈曲性を下記の方法に基づいて判定した。すなわち、円筒形マンドレル法(JISK5600-5-1)に基づき、直径の異なる複数のマンドレルに、試料片を巻き付け、その巻き付け部分にクラックが生じるか否かを目視で評価した。直径が2mm以下であるマンドレルにおいてクラックが生じない場合を○、直径が2mm以下であるマンドレルにおいてクラックが生じた場合を×とした。
Claims (5)
- ノルボルネンから誘導される環状オレフィンモノマー(A)の構造単位と、
C4~C12のα-オレフィンの少なくとも1つから誘導されるモノマー(B)の構造単位と、を含む共重合体であって、
Tgが170℃以上であり、かつ、Al含量が50ppm以下である共重合体からなる成形体。 - 前記成形体は、透明フィルムである請求項1に記載の成形体。
- 共重合体の数平均分子量が、20,000以上200,000以下である請求項1又は2に記載の成形体。
- JIS K7136法に従って測定されたヘーズが0.1~1.0%である、請求項1から3のいずれかに記載の成形体。
- 請求項1から4のいずれかに記載の成形体と、透明導電層と、を含む透明導電性積層体。
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| JP2023112593A (ja) * | 2022-02-01 | 2023-08-14 | ポリプラスチックス株式会社 | 溶液組成物、及びフィルム |
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- 2015-04-20 CN CN201580026097.6A patent/CN106459273B/zh active Active
- 2015-04-20 US US15/312,983 patent/US10072108B2/en active Active
- 2015-04-20 EP EP15795746.5A patent/EP3147301B1/en active Active
- 2015-04-20 WO PCT/JP2015/061988 patent/WO2015178145A1/ja not_active Ceased
- 2015-04-20 JP JP2016521004A patent/JPWO2015178145A1/ja active Pending
- 2015-04-20 KR KR1020167032167A patent/KR101876950B1/ko active Active
- 2015-05-11 TW TW104114858A patent/TW201607965A/zh unknown
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019026839A1 (ja) * | 2017-08-01 | 2019-02-07 | ポリプラスチックス株式会社 | 共重合体及び共重合体の製造方法 |
| JP6491804B1 (ja) * | 2017-08-01 | 2019-03-27 | ポリプラスチックス株式会社 | 共重合体及び共重合体の製造方法 |
| JP2023112593A (ja) * | 2022-02-01 | 2023-08-14 | ポリプラスチックス株式会社 | 溶液組成物、及びフィルム |
| JP2023112591A (ja) * | 2022-02-01 | 2023-08-14 | ポリプラスチックス株式会社 | プレス成形用樹脂組成物、及びプレス成形体 |
| JP2023112594A (ja) * | 2022-02-01 | 2023-08-14 | ポリプラスチックス株式会社 | 樹脂組成物、及びフィルム |
| JP2023112592A (ja) * | 2022-02-01 | 2023-08-14 | ポリプラスチックス株式会社 | 射出成形用樹脂組成物、及び射出成形体 |
| JP7798594B2 (ja) | 2022-02-01 | 2026-01-14 | ポリプラスチックス株式会社 | 射出成形用樹脂組成物、及び射出成形体 |
| JP7798593B2 (ja) | 2022-02-01 | 2026-01-14 | ポリプラスチックス株式会社 | プレス成形用樹脂組成物、及びプレス成形体 |
| JP7798595B2 (ja) | 2022-02-01 | 2026-01-14 | ポリプラスチックス株式会社 | 溶液組成物、及びフィルム |
| JP7833900B2 (ja) | 2022-02-01 | 2026-03-23 | ポリプラスチックス株式会社 | 樹脂組成物、及びフィルム |
| WO2024143451A1 (ja) * | 2022-12-28 | 2024-07-04 | 株式会社クラレ | 透明基板及び透明積層体 |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201607965A (zh) | 2016-03-01 |
| CN106459273A (zh) | 2017-02-22 |
| US10072108B2 (en) | 2018-09-11 |
| KR101876950B1 (ko) | 2018-07-10 |
| EP3147301B1 (en) | 2023-05-10 |
| EP3147301A4 (en) | 2018-02-21 |
| EP3147301A1 (en) | 2017-03-29 |
| KR20160147849A (ko) | 2016-12-23 |
| CN106459273B (zh) | 2020-09-08 |
| JPWO2015178145A1 (ja) | 2017-04-20 |
| US20170190815A1 (en) | 2017-07-06 |
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