| abstract |
Coating compositions which contain a copolymer made by the free radical polymerization of a organopolysiloxane containing free radical polymerizable functional groups on the terminals, such as vinyl terminated polydimethylsiloxane; a free radical polymerizable acrylate compound or methacrylate compound, such as a mixture of ethyl acrylate and methyl methacrylate; and an organosilane of the formula n(A)(R) n Si(P) 3-n nin which A is a monovalent hydrocarbon radical containing free radical polymerizable groups, R is a monovalent hydrocarbon radical, P is a hydrolyzable monovalent group, and n is 0, 1, or 3. The coating compositions can contain a cure accelerating catalyst such as an organotin compound. These coating compositions have excellent weather resistances and adhere to surfaces found in civil engineering and construction. |