Organosilicon compounds their preparation and use

Details Organosilicon compounds their preparation and use Organosilicon compounds their preparation and use

C - Chemistry, Metallurgy

07

F

167/314, 260/442

C07F 7/18 (2006.01) C07F 7/08 (2006.01) C08G 77/14 (2006.01) C08G 77/38 (2006.01)

Patent

CA 1326858

ABSTRACT OF THE DISCLOSURE Organosilicon compounds having at least one unit of the general formula (i) Image in which R represents an alkyl group having up to about 18 carbon atoms, R'is a divalent alkylene, oxyalkylene, alkenylene or oxyalkenylene group, R'' represents a halogen atom, or an alkyl, aryl, alkoxy or alkoxyalkoxy group having less than 9 carbon atoms, Z represents an alkyl, alkoxy or hydroxyl group, a has a value of O, 1, 2 or 3 and c is 0 or 1, wherein at least one of Z and R' is linked to the multivalent aryl group via an ether linkage, are useful for absorbing UV radiation. Especially if polymeric (with e.g. diorganosiloxane units) they can be incorporated in sunscreen preparations to improve their substantivity to the skin. A process for preparing the compounds is also disclosed.

573381

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