Patent · US Expired

UV absorber compositions comprising a hydroxyphenyltriazine compound

US7344706B2 · kind B2 · utility

1Cited by

1References

25Claims

0Family size

Assignee

Ciba Specialty Chemicals Corporation · US

Inventors

Jürg Haase · Bettingen, CH
Thomas Ehlis · Glückstadt, DE
Elek Borsos · Birsfelden, CH
Dietmar Huglin · Eimeldingen, DE
Bernd Herzog · Weil am Rhein, DE

Key dates

Filing date	Mar 4, 2003
Grant date	Mar 18, 2008
Priority date	—
Expiry date	Feb 16, 2025

Classification

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

Abstract

UV absorber compositions are described, comprising (a) from 1 to 99% by weight of a hydroxyphenyltriazine compound of formula (I) wherein R1, R2 and R3 are each independently of the others C1-C18alkyl; C2-C10,alkenyl; or phenyl-C1-C4 alkyl; R4 is hydrogen; or C1-C5alkyl; and (b) from 99 to 1% by weight of a further UV absorber selected from the group of (b) hydroxyphenyltriazines that are different from component (a), (b2) benzotriazoles, (b3) dibenzoylmethane derivatives and (b4) camphor derivatives. The compositions are suitable as UV filters in cosmetic compositions

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