Patent · US Active

Sunscreen composition with polyhydroxy quaternary ammonium salts

US8496916B2 · kind B2 · utility

0Cited by

16References

12Claims

0Family size

Assignee

Conopco, Inc. · US

Inventors

Bijan Harichian · Brookfield, US
Van Au · Oxford, US
Neil Patrick Randle · Schwetzingen, DE
Stephen Roy Barrow · Trumbull, US

Key dates

Filing date	May 22, 2012
Grant date	Jul 30, 2013
Priority date	—
Expiry date	May 22, 2032

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61Q17/04
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A cosmetic composition is provided including a water-insoluble UV-A organic sunscreen agent having a max ranging from 330 to 380 nm, a UV-B organic sunscreen agent having a max ranging from 280 to 400 nm, and a photoprotective enhancing agent which is a polyhydroxy quaternary ammonium salt such as bis(dihydroxypropyl)dimethylammonium chloride, in a cosmetically acceptable carrier, and wherein the composition exhibits an SPF value which is 1 to 30 units higher than in the absence of the photoprotective enhancing agent.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.