| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a primer composition for a sealing material, having excellent adhesiveness to a hardly-adhesive member (in particular, a member subjected to acrylic electrodeposition coating or fluoropolymer coating). <P>SOLUTION: The primer composition for a sealing material contains a solvent (a), a polymethyl methacrylate (b), an aromatic modified terpene resin (c) and a compatibilizer (d). The solvent (a) is an ester-based organic solvent. The compatibilizer (d) is a copolymer obtained from monomer components of a methyl (meth)acrylate, a nonpolar compound having a vinyl group and a benzene ring in one molecule, and a (meth)acrylamide obtained by substituting at least one of hydrogen bonded to nitrogen thereof with an alkyl group, an alkyloxy group or an alkyloxyalkyl group. The primer composition for a sealing material contains, with respect to 100.0 pts.mass of the solvent (a) and in terms of a solid content, (b) 5.0 to 20.0 pts.mass, (c) 0.5 to 10.0 pts.mass, and (d) 2.0 to 12.0 pts.mass. <P>COPYRIGHT: (C)2012,JPO&INPIT |
