IP Library › Granted Patent US 9,228,062
Granted Patent B2
US 9,228,062 · App. 14/545,127 · Granted Jan 5, 2016

Silicone polymers containing UV photostabilizing groups

Inventor: Thomas George O'Lenick (Dacula, GA)
Assignee: SURFATECH CORPORATION
C08G77/14C07D249/20C07D251/54C08G63/695C08G77/445C08G77/045C08G77/16C08G77/46
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Quick Facts
Patent No.
US 9,228,062
App. No.
14/545,127
Granted
Jan 5, 2016
Kind
B2
Abstract

The present invention is directed to a series of silicone containing polymers that contain photostabilizers that act as photo stabilizers for Ultra Violet radiation. The polymers of the present invention are multi functional sun screening additives that allow in addition to photostabilizing the active sunscreen agent found in sunscreens, additionally provide high levels of UV protection in a cosmetically elegant base. The compounds are made by the reaction of a benzatriazole compound and a methyl ester silicone compound.

Claims (13)

1. An ester having the following structure:

wherein x is an integer from 0 to 20;

R is selected from the group consisting of:

(i)

(ii)

and

(iii)

mixtures thereof.

2. The ester of claim 1 wherein x is 1.

3. The ester of claim 1 wherein x is 5.

4. The ester of claim 1 wherein x is 10.

5. The ester of claim 1 wherein x is 0.

6. The ester of claim 1 wherein x is 20.

Continuity (3)
Continuation In Part 14120763 · Jun 25, 2014
Provisional Application 61967745 · Mar 26, 2014
Related Publication 20150274893A1 · Oct 1, 2015