Patent ID: 8535558

Claim:
A microcapsule, comprising: a capsule core; and a capsule wall; wherein the capsule wall is a copolymer of copolymerized monomers, consisting of: (a) 50 to 90% by weight of at least one selected from the group consisting of a C 1 -C 24 -alkyl ester of acrylic acid monomer, and a C 1 -C 24 -alkyl ester of methacrylic acid monomer; (b) 10 to 50% by weight of at least one polyvinyl monomer selected from the group consisting of a polyester of polyol and acrylic acid, a polyester of a polyol and methacrylic acid, a polyvinyl ether of a polyol, and a polyallyl ether of a polyol; and (c) 0 to 30% by weight of a mono-unsaturated, nonionizable monomer, which is different from the monomer (a), based on a total weight of monomers (a), (b) and (c).