Organic compounds -- part of the class 532-570 series – Organic compounds – Silicon containing
Patent
1988-07-29
1990-03-27
Stoll, Robert L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Silicon containing
556441, C07F 706
Patent
active
049122410
ABSTRACT:
Organosilicon compounds having at least one unit of the general formula ##STR1## in which R represents alkyl, R' is a divalent alkylene, oxyalkylene, alkenylene or oxyalkenylene, Z represents an alkyl, alkoxy or hydroxyl group, a has a value of 0, 1, 2 or 3 and c is 0 to 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.
REFERENCES:
patent: 4562278 (1985-12-01), Hill
Colas Andre R. L.
Cray Stephen E.
Frater Georg
Dow Corning Limited
Hendrickson Stuart L.
McKellar Robert L.
Pawl Marc C.
Stoll Robert L.
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