US4414200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powder stick composition for topical application
Assignee: BT Commercial Corp
•
Filing: 1980-03-17
•
Granted: 1983-11-08
•
Expires: 2000-03-17
Abstract
Abstract A powder stick composition for topical application, and particularly a powder stick containing an anti-perspirant as an active ingredient. The stick is produced by incorporating an active ingredient, a finely divided inert filler, and a fatty alcohol with a siloxane at an elevated temperature to form a slurry. The slurry is then molded into stick form at atmospheric pressure, and the molded stick is dried to evaporate a major portion of the siloxane. The resulting stick is firm, has a uniform distribution of the active ingredient throughout the cross section and has excellent pay-off characteristics.
Inventors
- 👤 John H. Murphy
- 👤 Jon D. Packer
- 👤 Dennis R. Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:42
CPC Classifications
A; A61; A61Q; A61Q15/00; A61K; A61K8/00; A61K8/02; A61K8/0216; A61K8/0229; A61K8/18; A61K8/19; A61K8/26; A61K8/30; A61K8/33; A61K8/34; A61K8/342; A61K8/58; A61K8/585; Y; Y10; Y10S; Y10S424/00; Y10S424/05
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
98 words
A method of preparing a cosmetic powder product, comprising the steps of mixing at an elevated temperature a fatty alcohol containing 12 to 22 carbon atoms in the molecule, a finely divided filler, and a sufficient quantity of a liquid cyclic evaporable siloxane to form a liquid moldable slurry, introducing the slurry into a mold, solidifying the slurry to provide a solid molded product, evaporating the major portion of the siloxane from the molded product to provide a dried powder product, and thereafter packaging said product, said product having excellent pay off and high resistance to humidity absorption.
Claim 2
Independent Claim
98 words
A method of preparing a cosmetic powder product, comprising the steps of mixing at an elevated temperature a fatty alcohol containing 12 to 22 carbon atoms in the molecule, a finely divided filler, and a sufficient quantity of a liquid cyclic evaporable siloxane to form a liquid moldable slurry, introducing the slurry into a mold, solidifying the slurry to provide a solid molded product, evaporating the major portion of the siloxane from the molded product to provide a dried powder product, and thereafter packaging said product, said product having excellent pay off and high resistance to humidity absorption.
Claim 3
Dependent Claim
28 words
The method of claim 1, wherein the slurry has the following composition in weight percent: Fatty alcohol: 5% to 30%; Filler: 70% to 10%; Siloxane: 25% to 60%.
Claim 4
Dependent Claim
26 words
The method of claim 1, wherein the siloxane is at a temperature in the range of 60° C. to 70° C. during the step of mixing.
Claim 5
Dependent Claim
21 words
The method of claim 1, wherein the step of molding the slurry comprises pouring the slurry by gravity into a mold.
Claim 6
Dependent Claim
40 words
The method of claim 1, wherein said composition includes an active anti-perspirant ingredient, said slurry having the following composition in weight percent: Fatty alcohol: 4% to 12%; Anti-perspirant ingredient: 10% to 35%; Filler: 66% to 3%; Siloxane: 20% to 50%.
Claim 7
Dependent Claim
41 words
The method of claim 1, wherein said composition contains a cosmetic coloring material, said slurry having the following composition in weight percent: Filler: 75% to 3%; Fatty alcohol: 4% to 12%; Cosmetic coloring material: 1% to 35%; Siloxane: 20% to 50%.
Claim 8
Independent Claim
106 words
The method of preparing a powdered anti-perspirant stick, comprising the steps of preparing a slurry composed of a finely divided generally inert filler, a fatty alcohol containing from 12 to 22 carbon atoms in the molecule, an anti-perspirant ingredient, and a liquid cyclic volatile siloxane; molding the slurry at atmospheric pressure into a stick, and evaporating the major portion of the siloxane from the stick to form a dried stick having a siloxane content less than 2% by weight, said slurry having the following composition in weight percent: Fatty alcohol: 4% to 12%; Anti-perspirant ingredient: 10% to 35%; Filler: 66% to 3%; Siloxane: 20% to 50%.
Claim 9
Independent Claim
106 words
The method of preparing a powdered anti-perspirant stick, comprising the steps of preparing a slurry composed of a finely divided generally inert filler, a fatty alcohol containing from 12 to 22 carbon atoms in the molecule, an anti-perspirant ingredient, and a liquid cyclic volatile siloxane; molding the slurry at atmospheric pressure into a stick, and evaporating the major portion of the siloxane from the stick to form a dried stick having a siloxane content less than 2% by weight, said slurry having the following composition in weight percent: Fatty alcohol: 4% to 12%; Anti-perspirant ingredient: 10% to 35%; Filler: 66% to 3%; Siloxane: 20% to 50%.
Claim 10
Dependent Claim
12 words
The method of claim 7, wherein the anti-perspirant material is aluminum chlorohydrate.
Claim 11
Dependent Claim
13 words
The method of claim 7, wherein the anti-perspirant material is zirconium hydroxy chloride.
Claim 12
Dependent Claim
23 words
The method of claim 7, wherein the step of evaporating the siloxane is carried out by flowing a gas over the molded stick.
Claim 13
Independent Claim
89 words
A method of preparing a cosmetic powder product, comprising the steps of preparing a liquid slurry by mixing a finely divided filler, a fatty alcohol, and an evaporable solvent for the alcohol, said solvent being a liquid at room temperature, introducing the liquid slurry into a mold, solidifying the slurry to provide a solid molded product, evaporating the major portion of the solvent from the molded product to provide a dry powder product, and thereafter packaging the product, said product having excellent pay-off and high resistance to humidity absorption.
Claim 14
Independent Claim
89 words
A method of preparing a cosmetic powder product, comprising the steps of preparing a liquid slurry by mixing a finely divided filler, a fatty alcohol, and an evaporable solvent for the alcohol, said solvent being a liquid at room temperature, introducing the liquid slurry into a mold, solidifying the slurry to provide a solid molded product, evaporating the major portion of the solvent from the molded product to provide a dry powder product, and thereafter packaging the product, said product having excellent pay-off and high resistance to humidity absorption.
Claim 15
Dependent Claim
44 words
A powdered stick composition for topical application, consisting essentially by weight of from 95% to 5% of a finely divided inert filler, from 5% to 25% of a fatty alcohol containing 12 to 22 carbon atoms in the molecule, and up to 2% siloxane.
Claim 16
Dependent Claim
44 words
A powdered stick composition for topical application, consisting essentially by weight of from 95% to 5% of a finely divided inert filler, from 5% to 25% of a fatty alcohol containing 12 to 22 carbon atoms in the molecule, and up to 2% siloxane.
References Cited (Backward Citations)
DE968535C
Cited
DE1492258A1
Cited
US3800034A
Cited
US3846556A
Cited
JPS4872341A
Cited
US3978207A
Cited
DE2365219A1
Cited
SU530682A1
Cited
US4119712A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-07 | 1987-05-09 | 1987-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-07 | 1991-05-09 | 1991-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-07 | 1995-05-09 | 1995-11-08 | $7700.00 | Window Closed / Lapsed |