发明名称 |
OPTICAL RESIN COMPOSITION AND FILM |
摘要 |
An optical resin composition from which a film with improved adhesion to a polyvinyl alcohol-based film and improved flex resistance can be obtained while keeping high film transparency. The optical resin composition includes: 99 to 50% by weight of an acrylic resin having a glass transition temperature of not lower than 110° C.; and 1 to 50% by weight of a particulate (meth)acrylic multilayer structure graft copolymer containing: an innermost layer made of a polymer containing a methacrylic acid ester as a first monomer; a middle layer made of a polymer containing, as a second monomer, an acrylic acid alkyl ester having an alkyl group with 4 to 12 carbon atoms; and an outermost layer made of a polymer containing a methacrylic acid ester as a third monomer. A graft ratio of the (meth)acrylic multilayer structure graft copolymer is not less than 110%. |
申请公布号 |
US2017107369(A1) |
申请公布日期 |
2017.04.20 |
申请号 |
US201615393842 |
申请日期 |
2016.12.29 |
申请人 |
Kaneka Corporation |
发明人 |
Kitayama Fuminobu;Koyama Haruki;Hiiro Tomoki |
分类号 |
C08L33/00;G02B5/30;G02B1/04;G02B1/14;C08J5/18;C08F265/06 |
主分类号 |
C08L33/00 |
代理机构 |
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代理人 |
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主权项 |
1. An optical resin composition comprising:
99 to 50% by weight of an acrylic resin having a glass transition temperature of not lower than 110° C.; and 1 to 50% by weight of a particulate (meth)acrylic multilayer structure graft copolymer, wherein the (meth)acrylic multilayer structure graft copolymer comprises:
an innermost layer made of a polymer containing a methacrylic acid ester as a first monomer;a middle layer made of a polymer containing, as a second monomer, an acrylic acid alkyl ester having an alkyl group with 4 to 12 carbon atoms; andan outermost layer made of a polymer containing a methacrylic acid ester as a third monomer, and a graft ratio of the (meth)acrylic multilayer structure graft copolymer is not less than 110%. |
地址 |
Osaka JP |