Process to improve color in antiperspirant solutions

Details Process to improve color in antiperspirant solutions Process to improve color in antiperspirant solutions

1994-06-10

1996-01-09

Ore, Dale R.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

424 59, 424 66, 424 67, 424 68, A61K 734, A61K 736, A61K 738, B01D 500

Patent

active

054826004

ABSTRACT:
The present invention process involves the exposure of antiperspirant salt solutions to ultraviolet light to cause lightening in color. The ultraviolet light can be in the wavelength range of 180 to 400 nanometers, with the longer wavelengths preferred and at an exposure time of 1 to 120 minutes. The color of the antiperspirant solutions treated with ultraviolet light approaches the color of water, commonly known in the cosmetic industry as water white. These exceptionally low color antiperspirant salt solutions are useful in development of clear and colorless antiperspirant gels, roll-ons and stick formulations.

REFERENCES:
patent: 3025220 (1962-03-01), Kunz et al.
patent: 3112252 (1963-11-01), Stoops et al.
patent: 3346474 (1967-10-01), Gush
patent: 4980038 (1990-12-01), Watanabe et al.

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