| 摘要 |
PURPOSE:To provide the titled compsn. having excellent initial tackiness, adhesion and releasability, which comprises a specific copolymer the whole surface of which is coated with a copolymer which is self-adhesive at ordinary temp. and a polyfunctional crosslinking agent. CONSTITUTION:100pts.wt. copolymer (A) which is self-adhesive at ordinary temp. and obtained by polymerizing 90-99.9wt% (hereinafter referred to as '%') nonfunctional vinyl monomer (a) composed mainly of a (meth)acrylate ester having 2-12C alkyl and 10-0.1% functional vinyl monomer (b) having at least one carboxyl, hydroxyl, amino or epoxy group is mixed with 20-1,000 pts.wt. copolymer (B) having glass transition temp. of 10 deg.C or lower and an average particle diameter of 0.5-300mum and synthesized using 90-99.9% component (a) and 10-0.1% alpha-monoolefin carboxylic acid (c) in an org. solvent. 0.01-5.0pts.wt. polyfunctional crosslinking agent (e.g.: tolylene diisocyanate) (C) capable of reacting with the functional groups contained in the components (b) and (c) is added to the mixture to obtain the titled compsn. comprising the component (B) the whole surface of which is coated with the component (A). |
