Optical resin composition and film
AssigneeKaneka Corporation
InventorsFuminobu Kitayama, Haruki Koyama, Tomoki Hiiro
Life of this patent
Estimating the term…
Loading patent…
AssigneeKaneka Corporation
InventorsFuminobu Kitayama, Haruki Koyama, Tomoki Hiiro
Estimating the term…
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%.
An optical resin composition comprising:
Dependencies are inferred from the claim text.