RESIN COMPOSITION FOR UNDERCOAT MATERIAL AND UNDERCOAT MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a resin for an undercoat material good in balance of strength and elongation of a coated film, which are important for chipping resistance or damping performance expression.;SOLUTION: There is provided a resin for undercoat material containing a (meth)acrylic copolymer (A) satisfying following (1) and (2). (1) it is obtained by polymerizing a macro monomer with number average molecular weight of 500 to 100,000 (a) and a vinyl monomer (b). (2) weight average molecular weight is 1000 to 1,000,000.;SELECTED DRAWING: None;COPYRIGHT: (C)2017,JPO&INPIT