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US 10,100,234 B2Granted
Pressure-sensitive adhesive composition, protective film, polarizer and liquid crystal display comprising the same
AssigneeLG Chem, Ltd.
InventorsNo Ma Kim, Jae Gwan Lee, An Na Lee
Life of this patent
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Abstract
The present invention relates to an acrylic pressure-sensitive adhesive composition, and more particularly, to an acrylic pressure-sensitive adhesive composition capable of showing an excellent anti-static performance, and solving a transferring problem of additives and a problem concerning a balance of low-rate and high-rate peel strength, by comprising a) an acrylic copolymer including a monomer having a functional group capable of chelating with a metal salt, and a hydrophobic monomer and b) a metal salt.
Claims11
A protective film comprising:
- a substrate;
- and
- a pressure sensitive adhesive layer that is formed on one or both sides of the substrate and that comprises a cured product of a pressure sensitive adhesive composition comprising:
- a) an acrylic copolymer including 0.8 to 5 parts by weight of a monomer having a functional group capable of chelating with a metal salt;
- 80 to 95 parts by weight of an alkyl (meth)acrylate having an alkyl group of 1 to 9 carbon atom(s);
- and 3 to 5 parts by weight of isobornyl (meth)acrylate, and 0.1 to 10 parts by weight of a monomer having a crosslinkable functional group, based on 100 parts by weight of the copolymer;
- and
- b) a metal salt,
- wherein the monomer having a functional group capable of chelating with a metal salt is a compound represented by Formula 1:
- wherein R1 represents a hydrogen or an alkyl group having 1 to 4 carbon atom(s), m is an integer of 1 to 4, n is an integer of 1 to 10, and R2 represents an alkyl group having 1 to 6 carbon atom(s) or an aryl group having 5 to 12 carbon atoms.
7 more elements
A polarizer comprising:
- a polarizing film or a polarizing device;
- and
- a pressure-sensitive adhesive layer that is formed on one or both sides of the polarizing film or device, and comprises a cured product of a pressure sensitive adhesive composition, comprising:
- a) an acrylic copolymer including 0.8 to 5 parts by weight of a monomer having a functional group capable of chelating with a metal salt;
- 80 to 95 parts by weight of an alkyl (meth)acrylate having an alkyl group of 1 to 9 carbon atom(s);
- and 3 to 5 parts by weight of isobornyl (meth)acrylate, and 0.1 to 10 parts by weight of a monomer having a crosslinkable functional group, based on 100 parts by weight of the copolymer;
- and
- b) a metal salt,
- wherein the monomer having a functional group capable of chelating with a metal salt is a compound represented by Formula 1:
- wherein R1 represents a hydrogen or an alkyl group having 1 to 4 carbon atom(s), m is an integer of 1 to 4, n is an integer of 1 to 10, and R2 represents an alkyl group having 1 to 6 carbon atom(s) or an aryl group having 5 to 12 carbon atoms.
7 more elements
Dependencies are inferred from the claim text.