The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 08, 1985
Filed:
Mar. 01, 1985
Michael P Hill, Saint Lythans, GB;
Dow Corning Ltd., Barry, GB;
Abstract
Process for preparing organosiloxanes having in the molecule at least one unit of the general formula ##STR1## in which R is C.sub.1-4 alkyl or a phenyl group, R' represents an aliphatic or aromatic group composed of carbon, hydrogen and optionally oxygen and having a valency of n+1, Y represents OH or alkoxy, a is 0, 1 or 2, b is 0 or 1 and n is 1, 2 or 3. The process comprises reacting an organosiloxane having silicon-bonded hydroxyalkyl or hydroxyaryl substituents with the appropriate acid chloride. The organosiloxanes absorb ultra violet radiation and are useful as sunscreen agents. Also claimed are certain novel siloxanes which can be obtained by the said process.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile