POLYSULFIDE-BASE SEALING MATERIAL COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a polysulfide-base sealing material composition which comprises constituents having good compatibility with each other and is excellent in resistance to staining with a top coating material and in weatherability. SOLUTION: The polysulfide-base sealing material composition contains a polymer (a) having two or more thiol groups, a compound (b) having two or more isocyanate groups, and a polymer (c) having units of a (meth)acrylate having oxyalkylene groups. The polymer (c) having units of a (meth)acrylate having oxyalkylene groups preferably comprises one obtained by copolymerizing a (meth)acrylate (c1) having 1 to 10 oxyalkylene groups with a 1-4C alkyl (meth)acrylate (c2). COPYRIGHT: (C)2004,JPO