Thermochromic/photochromic cosmetic compositions

Details Thermochromic/photochromic cosmetic compositions Thermochromic/photochromic cosmetic compositions

2006-04-04

2006-04-04

Padmanabhan, Sreeni (Department: 1617)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Cosmetic, antiperspirant, dentifrice

C424S063000, C424S069000, C514S071000

Reexamination Certificate

active

07022331

ABSTRACT:
Novel thermochromic and/or photochromic compositions are described. The thermochromic compositions include a thermoset resin, fatty substance, water, and dye, while photochromic compositions include a benzene derivative and a binder, such as silica gel. When mixed, the ingredients of the thermochromic and photochromic compositions form chromic cells with an outer shell comprised of either the thermoset resin (in the case of thermochromic compositions) or potassium nitrate (in the case of photochromic compositions). When the chromic compositions are exposed to either a heat or light stimulus, the chromic cells compress to causing the dye within the cells to no longer be visible, thereby creating a color-changing effect.

REFERENCES:
patent: 4421560 (1983-12-01), Kito et al.
patent: 4560604 (1985-12-01), Shimizu et al.
patent: 5017225 (1991-05-01), Nakanishi et al.
patent: 5166345 (1992-11-01), Akashi et al.
patent: 5431697 (1995-07-01), Kamata et al.
patent: 5503583 (1996-04-01), Hippely et al.
patent: 5582766 (1996-12-01), Jeon
patent: 5591255 (1997-01-01), Small et al.
patent: 5628934 (1997-05-01), Ohno et al.
patent: 5700453 (1997-12-01), Sato
patent: 5873892 (1999-02-01), Cohen
patent: 5997849 (1999-12-01), Small et al.
patent: 6012464 (2000-01-01), Hollowell et al.
patent: 6080415 (2000-06-01), Simon
patent: 6120821 (2000-09-01), Goodin et al.
patent: 6123952 (2000-09-01), Lagrange
patent: 6139779 (2000-10-01), Small et al.
patent: 6346237 (2002-02-01), Lemann et al.
Hawley, G. The Condensed Chemical Dictionary, 1971, 8thEd., Van NOstrand Reinhold Company, p. 100, 210.
Carey, F. Organic Chemistry, 1992, McGraw-Hill, Inc. P1080-2.

Affiliated with

Also associated with

Rating

Thermochromic/photochromic cosmetic compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermochromic/photochromic cosmetic compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermochromic/photochromic cosmetic compositions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3588982