Ultraviolet light absorbing agents and compositions and...

Details Ultraviolet light absorbing agents and compositions and... Ultraviolet light absorbing agents and compositions and...

C - Chemistry, Metallurgy

07

F

117/143, 31/164,

C07F 7/18 (2006.01) C07C 45/71 (2006.01) C08K 5/5419 (2006.01) C08K 5/5475 (2006.01) C09D 183/04 (2006.01) C09K 3/00 (2006.01)

Patent

CA 1161055

ABSTRACT OF THE DISCLOSURE There are provided ultraviolet light absorbing agents of the following general formula Image wherein Image Y is H or OH, Z is H, OH, OQ or OW, where at least one Z is OH if Y is H; Q is - CH2(CH2)nSi(R2)x(OR1)y; and w is -CmH2m+1; where x = 0, 1 or 2, y = 1, 2 or 3, x + Y = 3, R1 = alkyl or alkanoyl having 1 to 6 carbon atoms, R2 = alkyl having 1 to 6 carbon atoms, n = 0, 1 or 2, and m = 1 to 18. Also provided are organopolysiloxane protective coating compositions containing said ultraviolet light absorbing agents having unique utility for protecting transparent plastic articles.

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