Patent ID: 11884813
Assignee: MITSUBISHI CHEMICAL CORPORATION
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 10:
11. A macromonomer copolymer, comprising, in polymerized form, relative to total macromonomer copolymer weight, of:
a macromonomer (a′) comprising a repeating unit of formula (1′), , R being a group comprising a cyclic ether group, and X being H or a methyl group; and at least 50 wt. % of
a vinyl monomer (b′) capable of being copolymerized with the macromonomer (a′), comprising a C4 to C20 (meth)acrylate (b-1),
wherein the macromonomer (a′) comprises from 25 to 75% by mass of the repeating unit of formula (1′) and at least 20 wt. % of an alkyl (meth)acrylate, with respect to a total polymerized macromonomer (a) mass,
wherein a glass transition temperature (Tgb″) of a polymer obtained by polymerizing only the vinyl monomer (b′) is 25° C. or less,
wherein the macromonomer (a′) comprises, in polymerized form, glycidyl (meth)acrylate, (3,4-epoxycyclohexyl)methyl (meth)acrylate, β-methylglycidyl (meth)acrylate, (3-ethyloxetane-3-yl)methyl (meth)acrylate, tetrahydrofurfuryl (meth)acrylate, (2-methyl-2-ethyl-1,3-dioxolane-4-yl) (meth)acrylate, and/or (5-ethyl-1,3-dioxane-5-yl)methyl (meth)acrylate, and
wherein the macromonomer copolymer is a graft copolymer derived from the macromonomer (a′) and the vinyl monomer (b′).