US3873686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing alcohol-soluble aluminum chlorhydroxide-polyol complexes and product
Assignee: Individual
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Filing: 1971-10-28
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Granted: 1975-03-25
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Expires: 1991-10-28
Abstract
Abstract A process is provided for the preparation of alcohol-soluble aluminum chlorhydroxide-polyol complexes having a high aluminum content and a low polyol content by blending solid aluminum chlorhydroxide particles with polyol in an amount less than about 0.5 mole per mole of aluminum chlorhydroxide. The complexes thus obtained have especially desirable properties due to their high aluminum and low polyol content.
Inventors
- 👤 Stewart M Beekman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:27
CPC Classifications
C; C01; C01F; C01F7/00; C01F7/48; C01F7/56; C01F7/57; C01P; C01P2006/00; C01P2006/20; Y; Y10; Y10S; Y10S424/00; Y10S424/05
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
161 words
AN EFFECTIVE ANTIPERSPIRANT COMPOSITION COMPRISING AN ALUMINUM CHLOROHYDROXIDE-POLYOL COMPLEX HAVING AN ALUMINA:POLYOL RATIO WITHIN THE RANGE FROM AOUT 1:0.01 TO ABOUT 1:0.5, PREPARED BY BLENDING SOLID ALIMINUM CHLORHYDROXIDE IN PARTICULATE FORM DIRECTLY WITH A POLYOL IN AN AMOUNT OF LESS THAN ABOUT 0.5 MOLE PER MOLE OF ALUMINUM CHLORHYDROXIDE, CALCULATED AS A1203, AND REACTING THE ALUMINUM CHLORHYROXIDE WITH THE POLYOL TO FORM THE COMPLEX, THE ALUMINUM CHLORHYDRROXIDE HAVING THE FORMULA: A1Z(OH)Y C13X-V. NH20 WHERE N IS A NUMBER FROM ZERO TO FIVE X IS A NUMBER FROM 2 TO 5, AND Y IS A NUMBER FROM 2 TO 14; AND THE POLYOL HAVING FROM TWO TO THREE HYDROXY GROUPS AND BEING SELECTED FROM THE GROUP CONSISTING OF 1,2-PROPYLENE GLYCOL; 1,3-PROPYLENE GLYCOL; 1,3-BUTYLENE GLYCOL; GLYCEROL; 2-METHYL-2,4-PENTANEDIOL; 1,1,1-TRIMETHYLOLPROPANE; NEOPENTYL GLYCOL; POLYETHYLENE GLYCOL HAVING A MOLECULAR WEIGHT WITHIN THE RANGE FROM 400 TO AOUT 15000; P-XYLENE-A, A-DIOL; POLYEPICHOLROHYDRIN, BUTYNE- 1,4-IDOL; 2-ETHYL-1,3-HEXANE-DIOL; AND POLYPROPYLENE GLYCOL HAVING A MOLECULAR WEIGHT FROM 400 TO 1000; AND ETHANOL.
Claim 2
Dependent Claim
161 words
AN EFFECTIVE ANTIPERSPIRANT COMPOSITION COMPRISING AN ALUMINUM CHLOROHYDROXIDE-POLYOL COMPLEX HAVING AN ALUMINA:POLYOL RATIO WITHIN THE RANGE FROM AOUT 1:0.01 TO ABOUT 1:0.5, PREPARED BY BLENDING SOLID ALIMINUM CHLORHYDROXIDE IN PARTICULATE FORM DIRECTLY WITH A POLYOL IN AN AMOUNT OF LESS THAN ABOUT 0.5 MOLE PER MOLE OF ALUMINUM CHLORHYDROXIDE, CALCULATED AS A1203, AND REACTING THE ALUMINUM CHLORHYROXIDE WITH THE POLYOL TO FORM THE COMPLEX, THE ALUMINUM CHLORHYDRROXIDE HAVING THE FORMULA: A1Z(OH)Y C13X-V. NH20 WHERE N IS A NUMBER FROM ZERO TO FIVE X IS A NUMBER FROM 2 TO 5, AND Y IS A NUMBER FROM 2 TO 14; AND THE POLYOL HAVING FROM TWO TO THREE HYDROXY GROUPS AND BEING SELECTED FROM THE GROUP CONSISTING OF 1,2-PROPYLENE GLYCOL; 1,3-PROPYLENE GLYCOL; 1,3-BUTYLENE GLYCOL; GLYCEROL; 2-METHYL-2,4-PENTANEDIOL; 1,1,1-TRIMETHYLOLPROPANE; NEOPENTYL GLYCOL; POLYETHYLENE GLYCOL HAVING A MOLECULAR WEIGHT WITHIN THE RANGE FROM 400 TO AOUT 15000; P-XYLENE-A, A-DIOL; POLYEPICHOLROHYDRIN, BUTYNE- 1,4-IDOL; 2-ETHYL-1,3-HEXANE-DIOL; AND POLYPROPYLENE GLYCOL HAVING A MOLECULAR WEIGHT FROM 400 TO 1000; AND ETHANOL.
Claim 3
Dependent Claim
46 words
An effective antiperspirant composition according to claim 1, in which the aluminum chlorhydroxide-polyol complex has the formula: Alx(OH)yCl3x y.n(H2O).polyol0.01 0.5x wherein: x is a number from 2 to 5, y is a number from 2 to 14, and n is a number from 0 to 5.
Claim 4
Dependent Claim
22 words
The liquid antiperspirant composition having a pH higher than 4, comprising an aluminum chlorhydroxide-polyol complex according to claim 1, ethanol, and water.
Claim 5
Dependent Claim
107 words
A stable aerosol antiperspirant composition comprising the aluminum chlorhyroxide-polyol complex according to claim 1 in an amount within the range from about 4 to about 15 percent, ethanol in an amount within the range from about 5 to about 30 percent, alcohol-insoluble aluminum chlorhydroxide powder in an amount within the range from about 0.5 to about 5 percent, and an amount within the range from about 40 to about 90 percent of a propellant having a vapor pressure at room temperature within the range from about 25 to about 60 psi, selected from the group consisting of dichlorotetrafluoroethane, dichlorotrifluoromethane, octafluorocyclobutane, trichloromonofluoromethane, and mixtures of dichlorodifluoromethane and trichloromonofluoromethane.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |