申请人:Kawamura Akira
公开号:US20050244657A1
公开(公告)日:2005-11-03
An acrylic resin composition comprising the following acrylic resins (1) and (2): acrylic resin (1): an acrylic resin containing a structural unit derived from a monomer (a) (structural unit (a)) and a structural unit derived from a monomer (b) (structural unit (b)); acrylic resin (2): an acrylic resin having a molecular weight of 1,100,000 to 1,500,000, and containing the structural unit (a) as the main component and a structural unit derived from a monomer (c) (structural unit (c)) and substantially not containing the structural unit (b);
(a): a (meth)acrylate of the formula (A)
(wherein, R
1
represents a hydrogen atom or methyl group, R
2
represents an alkyl group having 1 to 14 carbon atoms or an aralkyl group having 1 to 14 carbon atoms, and a hydrogen atom in the alkyl group R
2
or a hydrogen atom in the aralkyl group R
2
may be substituted with an alkoxy group having 1 to 10 carbon atoms.),
(b): a monomer containing an olefinic double bond in the molecule and at least one 5- or more-membered heterocyclic group in the molecule, (c): a monomer not containing 5- or more-membered heterocyclic group and containing one olefinic double bond and at least one polar functional group selected from the group consisting of a carboxyl group, hydroxyl group, amide group, amino group, epoxy group, oxetanyl group, aldehyde group and isocyanate group in the molecule.
一种丙烯酸树脂组合物,由以下丙烯酸树脂 (1) 和 (2) 组成:丙烯酸树脂 (1):一种丙烯酸树脂,含有源自单体 (a) 的结构单元(结构单元 (a))和源自单体 (b) 的结构单元(结构单元 (b));丙烯酸树脂 (2):分子量在 1,100,000 至 1,500,000 之间的丙烯酸树脂,其主要成分含有结构单元 (a)和由单体(c)衍生的结构单元(结构单元 (c)),且基本上不含结构单元 (b);
(a) 式(A)的(甲基)丙烯酸酯
(其中,R
1
代表氢原子或甲基,R
2
代表具有 1 至 14 个碳原子的烷基或具有 1 至 14 个碳原子的芳烷基,烷基中的氢原子 R
2
中的一个氢原子或烷基基团 R
2
可被具有 1 至 10 个碳原子的烷氧基取代)、
(b) 分子中含有一个烯烃双键和至少一个五元或五元以上杂环基团的单体, (c) 分子中不含有五元或五元以上杂环基团,但含有一个烯烃双键和至少一个极性官能团的单体,该极性官能团选自羧基、羟基、酰胺基、氨基、环氧基、氧杂环丁烷基、醛基和异氰酸酯基。