Use of cholesteric liquid-crystalline polymers as UV screens in

Details Use of cholesteric liquid-crystalline polymers as UV screens in Use of cholesteric liquid-crystalline polymers as UV screens in

1999-10-13

2000-12-12

Dodson, Shelley A.

Drug, bio-affecting and body treating compositions

Topical sun or radiation screening, or tanning preparations

424 60, 424400, 424401, A61K 742, A61K 744, A61K 700

Patent

active

061594547

ABSTRACT:
Cholesteric liquid-crystalline polymers, especially cholesteric liquid-crystalline polyesters, polycarbonates or polyamides, are used as photostable UV screens in cosmetic and pharmaceutical preparations for protecting the human epidermis or hair against UV radiation, especially in the region from 280 to 450 nm.

REFERENCES:
patent: 5747175 (1998-05-01), Dietz et al.
patent: 5834064 (1998-11-01), Dietz et al.
patent: 5834072 (1998-11-01), Schoenfeld et al.
patent: 5837160 (1998-11-01), Dietz et al.
patent: 5851277 (1998-12-01), Mueller-Rees et al.

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