Coating agent for inorganic building material

Abstract

Abstract PURPOSE:A coating agent which will not cause a fire or air pollution, has excellent adhesiveness, water resistance, and weatherability, and contains a copolymer consisting mainly of an alkyl (meth)acrylate containing a specified organic silicon group, obtained by emulsion polymerization. CONSTITUTION:The titled coating agent which contains as an essential component a water-base copolymer obtained by the emulsion polymerization in an aqueous medium of a monomer mixture comprising 0.1-40wt% organic silicon monomer (A) containing a polymerizable unsaturated group and a hydrolyzable group directly attached to a silicon atom in a molecule (e.g. vinyltrimethoxysilane), 50-99.9wt% alkyl (meth)acrylate of a 1-18C alkyl (B) [e.g. methyl (meth)acrylate], and 0-40wt% other polymerizable monomer (C) [e.g. (meth) acrylic acid] and, if necessary, a silane compound containing a hydrolyzable group directly attached to a silicon atom (e.g. aminomethyltriethoxysilane).

Inventors

• 👤 Masuji Izumibayashi
• 👤 益次 泉林
• 👤 Masanori Sagara
• 👤 昌則 相良
• 👤 Kiyoshi Kawamura
• 👤 清 川村

Bibliographic Details