Clear antiperspirant gel stick and method for making same

Details Clear antiperspirant gel stick and method for making same Clear antiperspirant gel stick and method for making same

1993-08-20

1995-10-31

Ore, Dale R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

424 66, 424 67, 424 68, 556 34, 556134, A61K 732, A61K 736, A61K 738, C07F 900

Patent

active

054630983

ABSTRACT:
A residue free, antiperspirant gel stick composition is disclosed which comprises an antiperspirant compound which is soluble in a diol, a normally liquid, water soluble diol, a gelling agent and a zinc glycinate in amount sufficient to control the pH of the gel stick at about 4.1 to about 5.0, the glycine to zinc mole ratio of the zinc glycinate added being about 2.0/1 to about 3.0/1. The process for preparing a diol soluble antiperspirant active useful in preparing the residue free gel stick is also disclosed and comprises reacting an antiperspirant compound with a water soluble, normally liquid diol in a water solution by heating for about 1 to about 100 hours at a temperature of about 50.degree. C. to about 110.degree. C.; adding a zinc glycinate to the reaction mixture and removing the water to recover a powdered antiperspirant active.

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patent: 3947557 (1976-03-01), Jones et akl
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patent: 4137306 (1979-01-01), Rubino et al.
patent: 4774079 (1988-09-01), Shin et al.
patent: 4781917 (1988-12-01), Luebbe et al.

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