Patent · US Active

Water-resistant cosmetic formulations comprising a hydrophobically modified vinylpyrrolidone copolymer

US9364418B2 · kind B2 · utility

0Cited by

12References

13Claims

0Family size

Assignee

BASF SE

Inventors

Veronique Kessler · Ludwigshafen, DE
Maximilian Angel · Mutterstadt, DE
Klemens Mathauer · Ludwigshafen, DE

Key dates

Filing date	Jan 12, 2011
Grant date	Jun 14, 2016
Priority date	—
Expiry date	Jan 19, 2031

Classification

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

Abstract

The present invention relates to the use of copolymers comprising N-vinylpyrrolidone and a hydrophobically modified acrylic acid derivative as agents for improving the water resistance of a cosmetic formulation, and to the use of these copolymers in sunscreen compositions for increasing the sun protection factor, and furthermore the present invention relates to cosmetic formulations comprising these copolymers.

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