US4853430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of increasing viscosity with fatty acid-modified polyesters and highly viscous compositions obtained thereby
Assignee: Hoechst AG
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Filing: 1987-12-30
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Granted: 1989-08-01
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Expires: 2007-12-30
Abstract
Abstract Fatty acid-modified polysters composed of polyalkylene oxide and dimerized fatty acids, of the formula ##STR1## in which R is C 8 -C 22 -alkyl or C 8 -C 22 -alkenyl, preferably C 12 -C 18 -alkyl, R 1 is the alkyl skeleton of a dimerized fatty acid having 22 to 42, preferably 34 carbon atoms, A is --C 2 H 4 -- or --C 3 H 6 --, n is a number from 1 to 5, preferably 1 to 3, and x is a number from 20 to 150, preferably 23 to 140. These are prepared by simultaneous reaction of the underlying dimerized fatty acid, polyalkylene oxide and fatty acid. The polyesters obtained are used as agents for increasing the viscosity of surfactant-containing cosmetic, pharmaceutical and industrial products.
Inventors
- 👤 Herbert Stuhler
- 👤 Alwin Reng
- 👤 Werner Skrypzak
- 👤 Jochen M. Quack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:42
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/46; C08G63/48; A; A61; A61K; A61K47/00; A61K47/06; A61K47/08; A61K47/14; A61K8/00; A61K8/18; A61K8/72; A61K8/84; A61K8/85; A61K9/00; A61K9/0012; A61K9/0014; A61Q; A61Q19/00; A61Q19/10; A61Q5/00; A61Q5/02; A61Q5/06; C08G63/66; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3703; C11D3/3715
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
113 words
A surfactant composition comprising: a nonionic, anionic or amphoteric surfactant or a mixture of said surfactants and, as a viscosity-increasing agent therefor, a fatty acid-modified polyester which is the reaction product of the components comprising a dimerized fatty acid and a polyalkylene oxide, said fatty acid-modified polyester having the formula ##STR4## in which R is C 8 -C 22 -alkyl or C 8 -C 22 -alkenyl; R 1 is the alkyl skeleton of a dimerized fatty acid having 22 to 42 carbon atoms; A is --C 2 H 4 -- or --C 3 H 6 --, n is a number from 1 to 5; and x is a number from 20 to 150.
Claim 2
Dependent Claim
113 words
A surfactant composition comprising: a nonionic, anionic or amphoteric surfactant or a mixture of said surfactants and, as a viscosity-increasing agent therefor, a fatty acid-modified polyester which is the reaction product of the components comprising a dimerized fatty acid and a polyalkylene oxide, said fatty acid-modified polyester having the formula ##STR4## in which R is C 8 -C 22 -alkyl or C 8 -C 22 -alkenyl; R 1 is the alkyl skeleton of a dimerized fatty acid having 22 to 42 carbon atoms; A is --C 2 H 4 -- or --C 3 H 6 --, n is a number from 1 to 5; and x is a number from 20 to 150.
Claim 3
Dependent Claim
65 words
A surfactant composition according to claim 1 comprising: about 0.1 to about 10% by weight, relative to the weight of the total composition, of a said fatty acid-modified polyester, an aqueous phase, in which said fatty acid-modified polyester has been dissolved to increase the viscosity of said phase, and said surfactant or mixture of surfactants dissolved, suspended or emulsified in the resulting viscous aqueous phase.
Claim 4
Dependent Claim
16 words
A surfactant composition according to claim 1 which is an essentially clear-appearing solution, suspension or emulsion.
Claim 5
Dependent Claim
32 words
A surfactant composition according to claim 1, wherein: R is C 12 -C 18 alkyl, n is a number from 1 to 3, and x is a number from 23 to 140.
Claim 6
Dependent Claim
23 words
A surfactant composition according to claim 4, wherein R 1 is the alkyl skeleton of a dimerized fatty acid having 34 carbon atoms.
Claim 7
Dependent Claim
26 words
A surfactant composition according to claim 1 having a viscosity of at least about 850 mPa·s, measured at 20° C. in an RVT Brookfield reaction viscometer.
Claim 8
Dependent Claim
22 words
A surfactant composition according to claim 1, wherein said composition contains an alkyl ether-sulfate or an alkane sulfonate as a said surfactant.
Claim 9
Dependent Claim
53 words
A surfactant composition according to claim 7, wherein said alkyl ethersulfate is a sodium alkyl ether-sulfate of the formula RO--CH 2 CH 2 O z --SO 3 Na, wherein z is a number from 1 to 5 and R is C 8 -C 18 alkyl, or an acylamidoalkyl ether-sulfate or an alkyldiglycol ethersulfate.
Claim 10
Dependent Claim
137 words
A cleaning, cosmetic, or pharmaceutical composition comprising: a water-containing phase, a nonionic, anionic or amphoteric surfactant or a mixture of said surfactants dissolved, suspended or emulsified in said water-containing phase, and, as a viscosity-increasing agent therefor, a fatty acid-modified polyester which is the reaction product of the components comprising a dimerized fatty acid and a polyalkylene oxide, said fatty acid-modified polyester having the formula ##STR5## in which R is C 8 -C 22 -alkyl or C 8 -C 22 -alkenyl; R 1 is the alkyl skeleton of a dimerized fatty acid having 22 to 42 carbon atoms; A is --C 2 H 4 -- or --C 3 H 6 --, n is a number from 1 to 5; and x is a number from 20 to 150, said fatty acid-modified polyester being dissolved in the water-containing phase.
Claim 11
Dependent Claim
137 words
A cleaning, cosmetic, or pharmaceutical composition comprising: a water-containing phase, a nonionic, anionic or amphoteric surfactant or a mixture of said surfactants dissolved, suspended or emulsified in said water-containing phase, and, as a viscosity-increasing agent therefor, a fatty acid-modified polyester which is the reaction product of the components comprising a dimerized fatty acid and a polyalkylene oxide, said fatty acid-modified polyester having the formula ##STR5## in which R is C 8 -C 22 -alkyl or C 8 -C 22 -alkenyl; R 1 is the alkyl skeleton of a dimerized fatty acid having 22 to 42 carbon atoms; A is --C 2 H 4 -- or --C 3 H 6 --, n is a number from 1 to 5; and x is a number from 20 to 150, said fatty acid-modified polyester being dissolved in the water-containing phase.
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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) | 1992-07-31 | 1993-01-30 | 1993-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-31 | 1997-01-30 | 1997-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-31 | 2001-01-30 | 2001-08-01 | $7700.00 | Window Closed / Lapsed |