Ultraviolet radiation absorbing polyethers

• US 9,758,618 B2
• Filed: 01/27/2016
• Issued: 09/12/2017
• Est. Priority Date: 06/28/2012
• Status: Active Grant

• Current Assignee: Johnson & Johnson Consumer Inc. (Johnson & Johnson)
• Original Assignee: Johnson & Johnson Consumer Inc. (Johnson & Johnson)
• Inventors: Levins, Christopher G., Zavatsky, Joseph F., Nathan, Aruna, Daly, Susan
• Primary Examiner(s): GULLEDGE, BRIAN M
• Application Number:
  US15/007,591
• Publication Number:
  US 20160137780A1
• Time in Patent Office: 594 Days
• Field of Search: None
• CPC Class Codes: A61K 2800/57 Compounds covalently linked to a(n inert) carrier molecule, e.g. conjugates, pro-fragrances
• CPC Class Codes: A61K 8/86 Polyethers
• CPC Class Codes: A61Q 17/04 Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
• CPC Class Codes: C08G 65/3326 aromatic
• CPC Class Codes: C08G 65/333 containing nitrogen
• CPC Class Codes: C08G 65/33396 having oxygen in addition to nitrogen

Abstract

A polymer composition comprising a linear ultraviolet radiation absorbing polyether that comprises a chemically bound UV-chromophore.

Claims

1. A composition comprising a cosmetic oil solvent and a polymer composition comprising a linear ultraviolet radiation absorbing polyether that comprises a covalently bound UV-chromophore and a backbone comprising glyceryl repeat units.

2. The composition of claim 1, wherein the cosmetic oil solvent comprises alkyl benzoates.

3. The composition of claim 1 having an SPF of about 25 or greater.

4. The composition of claim 1, wherein the linear ultraviolet radiation absorbing polyether comprises a repeat unit of the formula:

5. The composition of claim 1, wherein the polymer composition comprises about 50 or more of said linear ultraviolet radiation absorbing polyether.

6. The composition of claim 1, wherein the UV-chromophore is a benzotriazole.

7. The composition of claim 1, wherein the UV-chromophore absorbs both UVA and UVB radiation.

8. The composition of claim 1, wherein the polymer composition has a weight average molecular weight of about 500 to about 50,000.

9. A linear ultraviolet radiation absorbing polyether prepared by the process of transesterification of a linear polyglycerol containing side chain hydroxyl groups and a UV-chromophore ester.

10. The polyether of claim 9, wherein transesterification is performed using an acid catalyst.

11. The polyether of claim 9, wherein the UV chromophore is a benzotriazole.

12. The polyether of claim 9, wherein the UV-chromophore absorbs both UVA and UVB radiation.

13. The polyether of claim 9 having a weight average molecular weight of about 500 to about 50,000.