TUAN A VU
Nail Technician in Boston, MA

5725846, Mar 10, 1998

Feb 6, 1996

8/588618

Tuan M. Vu - Brighton MA
Carl F. Iovanni - Cambridge MA
Jayant N. Sane - Framingham MA

The Gillette Company - Boston MA

A61K 732, A61K 734, A61K 736, A61K 738

424 65

A clear gel cosmetic stick includes a liquid vehicle, a dibenzylidene alditol as a gelling agent, an antiperspirant salt dissolved in the liquid vehicle, and a hydroxyalkyl cellulose co-gellant. The cosmetic stick comprises in percent by weight about 70% to about 95%, preferably 75 to 92%, of a liquid vehicle comprising a polyhydric alcohol having from 3 to 6 carbon atoms and from 2 to 6 hydroxyl groups, about 0. 5% to about 1. 5%, preferably 0. 7% to 1. 3%, of a dibenzylidene alditol, about 3% to about 22%, preferably 6% to 15%, of an antiperspirant salt dissolved in said vehicle, and about 0. 1% to about 0. 5%, preferably 0. 2% to 0. 4%, of a hydroxyalkyl cellulose. Preferably the liquid vehicle is substantially free of monohydric alcohol and is also substantially free of strong alkali such as NaOH and KOH. Preferably the cosmetic stick will have a pH greater than 4. 4, more preferably greater than 4.

5716604, Feb 10, 1998

Sep 24, 1996

8/713223

Craig M. Coe - Buzzards Bay MA
Chinyere E. Onyekachi Utaegbulam - Medfield MA
Yanick Jean - Arlington MA
Tuan M. Vu - Allston MA
Jayant N. Sane - Framingham MA

The Gillette Company - Boston MA

A61K 732, A61K 700

424 65

Soap-based clear cosmetic sticks are disclosed which include 2-methyl-1,3-propanediol in the composition to increase the set temperature, and also the stick hardness. A typical composition of the present invention comprises about 20 to 50%, preferably 28 to 46%, of 2-methyl-1,3-propanediol, about 3 to 12%, preferably 4 to 8%, of an alkali metal salt of a C. sub. 12-22, preferably C. sub. 14-18, fatty acid, about 10 to 42%, preferably 18 to 30%, of a polyhydric alcohol other than 2-methyl-1,3-propanediol, and about 5 to 35%, preferably 15 to 30%, water. To achieve the highest set temperature the composition should also contain an alkali metal salt, preferably a sodium or potassium salt, particularly an alkali metal halide such as sodium chloride or an alkali metal chelate such as di-, tri- or tetra-sodium EDTA. The composition will also typically contain a cosmetic active ingredient such as a deodorant active. Preferably the composition will contain less than 0.

5798094, Aug 25, 1998

Sep 24, 1996

8/718884

Tuan M. Vu - Allston MA
Jayant N. Sane - Framingham MA
Craig M. Coe - Buzzards Bay MA

The Gillette Company - Boston MA

A61K 732

424 65

Soap-based clear cosmetic sticks are disclosed which include an alkali metal salt of a chelating agent into the stick composition to increase the set temperature and the stick hardness and to prevent the formation of precipitates in the composition during aging. A typical composition of the present invention comprises about 40 to 90%, preferably about 50 to 80%, of a polyhydric alcohol, about 5 to 35%, preferably 15 to 30%, water, about 3 to 12%, preferably 4 to 8%, of an alkali metal salt of a C. sub. 12-22, preferably C. sub. 14-18, fatty acid, and about 0. 3 to 1. 6%, preferably about 0. 5 to 1. 3% of an alkali metal salt of a chelating agent, preferably a sodium or potassium salt of ethylene diamine tetraacetic acid (EDTA). The composition will also typically contain a cosmetic active ingredient such as a deodorant active. Preferably the composition will contain less than 0.

5705171, Jan 6, 1998

Jul 10, 1996

8/695839

Carl F. Iovanni - Quincy MA
Tuan M. Vu - Brighton MA
Jayant N. Sane - Framingham MA

The Gillette Company - Boston MA

A16K 734

424401

A clear gel cosmetic stick includes a liquid vehicle, a dibenzylidene alditol as a gelling agent, an antiperspirant salt dissolved in the liquid vehicle, and a chelating agent. The cosmetic stick comprises in percent by weight about 40% to about 95% of the liquid vehicle, from about 0. 1% to about 5% of the dibenzylidene alditol, from about 0. 5% to about 25% of the antiperspirant salt, and from about 0. 05% to about 3% of the chelating agent. The cosmetic stick is preferably substantially free of alkaline gelling agent stabilizers such as NaOH and KOH.

5384117, Jan 24, 1995

Nov 12, 1992

7/974673

Tuan M. Vu - Brighton MA
Thomas J. Krafton - South Hampton NH
Alan M. Phipps - Framingham MA

The Gillette Company - Boston MA

A61K 732, A61K 734, A61K 738

424 66

A substantially clear, anhydrous suspension-type antiperspirant product includes an effective amount of an active antiperspirant component in particulate form suspended in an anhydrous vehicle such that there is no significant dissolution of the active antiperspirant ingredient in the vehicle, and the refractive indices of the active antiperspirant component and the vehicle are matched.