US4369173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antiperspirant compositions
Assignee: Dow Silicones Corp
•
Filing: 1979-03-19
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Granted: 1983-01-18
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Expires: 1999-03-19
Abstract
Abstract Dry powder antiperspirant compositions consisting essentially of known active antiperspirant chemicals encapsulated and buffered with about 10 to about 45 percent, by weight, of the total composition of a hydrolyzed carbohydrate derived from natural waxy maize; a method of buffering active antiperspirant chemicals during processing to prevent corrosion of the processing equipment; aqueous solutions and gels capable of being dried to form the dry powder antiperspirant compositions; and antiperspirant consumer products formulated from the dry powders, are described.
Inventors
- 👤 Robert H. Causland
- 👤 Americo V. Calogero
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:33
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/11; A61K8/18; A61K8/19; A61K8/26; A61K8/28; A61Q; A61Q15/00; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412; Y; Y10; Y10S; Y10S424/00; Y10S424/05
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
90 words
As a new composition of matter, a dry powder capable of being incorporated into a wide variety of consumer antiperspirant products, which is obtained by drying an aqueous solution of the ingredients and pulverizing the dried product, and which consists essentially of from about 55 to about 90% by weight of active acidic antiperspirant material and about 3 to about 45% by weight of at least partially hydrolyzed carbohydrate derived from natural waxy maize, said hydrolyzed carbohydrate being soluble in water and acting to buffer and encapsulate said acidic antiperspirant.
Claim 2
Dependent Claim
90 words
As a new composition of matter, a dry powder capable of being incorporated into a wide variety of consumer antiperspirant products, which is obtained by drying an aqueous solution of the ingredients and pulverizing the dried product, and which consists essentially of from about 55 to about 90% by weight of active acidic antiperspirant material and about 3 to about 45% by weight of at least partially hydrolyzed carbohydrate derived from natural waxy maize, said hydrolyzed carbohydrate being soluble in water and acting to buffer and encapsulate said acidic antiperspirant.
Claim 3
Dependent Claim
28 words
A dry powder antiperspirant composition according to claim 1 in which said hydrolyzed carbohydrate is soluble in water to the extent of at least about 35%, by weight.
Claim 4
Dependent Claim
14 words
A composition according to claim 1 wherein the carbohydrate is derived from corn starch.
Claim 5
Dependent Claim
12 words
A composition according to claim 3 wherein the carbohydrate is a dextrin.
Claim 6
Dependent Claim
12 words
A composition according to claim 3 wherein the carbohydrate is a malto-dextrin.
Claim 7
Dependent Claim
13 words
A composition according to claim 3 wherein the carbohydrate is corn syrup solids.
Claim 8
Dependent Claim
13 words
A composition according to claim 1 wherein the active acidic antiperspirant contains aluminum.
Claim 9
Dependent Claim
13 words
A composition according to claim 7 wherein the active antiperspirant is aluminum chlorhydrate.
Claim 10
Dependent Claim
13 words
A composition according to claim 7 wherein the active antiperspirant is aluminum chloride.
Claim 11
Dependent Claim
13 words
A composition according to claim 7 wherein the active antiperspirant is aluminum sulfate.
Claim 12
Dependent Claim
16 words
A composition according to claim 7 wherein the active antiperspirant is a mixture of aluminum-containing antiperspirants.
Claim 13
Dependent Claim
13 words
A composition according to claim 7 wherein the active antiperspirant is aluminum bromohydrate.
Claim 14
Dependent Claim
13 words
A composition according to claim 7 wherein the active antiperspirant is aluminum iodohydrate.
Claim 15
Dependent Claim
13 words
A composition according to claim 1 wherein the active acidic antiperspirant contains zirconium.
Claim 16
Dependent Claim
13 words
A composition according to claim 14 wherein the active antiperspirant is zirconyl chlorhydrate.
Claim 17
Dependent Claim
18 words
A composition according to claim 1 wherein the active acidic antiperspirant is a mixture of such materials. PG,56
Claim 18
Dependent Claim
18 words
A composition of claim 16 wherein the active acidic antiperspirant comprises a mixture of aluminum and zirconium-containing antiperspirants.
Claim 19
Dependent Claim
18 words
A composition of claim 16 wherein the active antiperspirant is a mixture of aluminum chlorhydrate and zirconyl chlorhydrate.
Claim 20
Dependent Claim
67 words
A composition of claim 1 wherein the carbohydrate is a product derived by drying a high-maltose corn syrup to obtain a powder having a dextrose equivalent of about 34 to 38, a pH in 50% aqueous solution of about 4.8 to 5.2 and a distribution of saccharides of about 6% monosaccharides, about 29% disaccharides, about 11% trisaccharides, about 12% tetrasaccharides and about 42% pentasaccharides and higher polysaccharides.
Claim 21
Dependent Claim
47 words
An aqueous solution capable of being dried to form a dry powder antiperspirant material of claim 1, said solution consisting essentially of water, about 25% to about 45% of an active antiperspirant material and about 3% to about 55% by weight of said solution of hydrolyzed carbohydrate.
Claim 22
Dependent Claim
13 words
An aqueous solution according to claim 20 wherein the carbohydrate is a dextrin.
Claim 23
Dependent Claim
13 words
An aqueous solution according to claim 20 wherein the carbohydrate is a malto-dextrin.
Claim 24
Dependent Claim
15 words
An aqueous solution according to claim 20 wherein the carbohydrate is a corn syrup solids.
Claim 25
Dependent Claim
27 words
An aqueous solution according to claim 20 wherein the acidic antiperspirant contains a material selected from the group consisting of aluminum-containing antiperspirants, zirconium-containing antiperspirants and mixtures thereof.
Claim 26
Independent Claim
43 words
A method for inhibiting the corrosion of processing equipment in the manufacture of aqueous acidic antiperspirant compositions which comprises dissolving in said aqueous solutions from about 3 to 45% of a water soluble at least partially hydrolyzed carbohydrate derived from natural waxy maize.
Claim 27
Independent Claim
43 words
A method for inhibiting the corrosion of processing equipment in the manufacture of aqueous acidic antiperspirant compositions which comprises dissolving in said aqueous solutions from about 3 to 45% of a water soluble at least partially hydrolyzed carbohydrate derived from natural waxy maize.
Claim 28
Dependent Claim
23 words
The method according to claim 25 in which said carbohydrate is soluble in water to the extent of at least 35% by weight.
Claim 29
Independent Claim
44 words
A method for inhibiting the gelation of aqueous solutions of mixed aluminum and zirconium antiperspirant materials which comprises dissolving in said solutions from about 3 to 45% by weight thereof of a water soluble at least partially hydrolyzed carbohydrate derived from natural waxy maize.
Claim 30
Independent Claim
44 words
A method for inhibiting the gelation of aqueous solutions of mixed aluminum and zirconium antiperspirant materials which comprises dissolving in said solutions from about 3 to 45% by weight thereof of a water soluble at least partially hydrolyzed carbohydrate derived from natural waxy maize.
Claim 31
Dependent Claim
19 words
A consumer antiperspirant product for application to the human body comprising a dry powder antiperspirant composition of claim 1.
Claim 32
Dependent Claim
62 words
A consumer antiperspirant product for application to the human body comprising a dry powder antiperspirant composition according to claim 1 consisting essentially of an acidic antiperspirant chemical encapsulated in a material derived from corn syrup which buffers said active antiperspirant to a dermatologically acceptable level and controls the release of active antiperspirant over a prolonged period of time on the human skin.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-17 | 1986-07-19 | 1987-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-17 | 1990-07-19 | 1991-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-17 | 1994-07-19 | 1995-01-18 | $7700.00 | Window Closed / Lapsed |