US5124079A
Expired / Lapsed
US
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Amidated fatty acid mixtures and use thereof as thickeners
Assignee: Kao Corp
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Filing: 1990-03-01
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Granted: 1992-06-23
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Expires: 2010-03-01
Abstract
Abstract The invention relates to mixtures of amidated fatty acids or derivatives thereof of the general formula <CHEM> wherein R min is absent or an alkyl group with 2-4 C-atoms, the average value of n is 0,5 to 3 and R represents a fatty acid radical with 14-24 C-atoms obtained from oils produced from the plant species 'Brassica' with an eruca acid content lower than 5 %. These products are good thickeners for surfactants and/or detergents. No nitrose compounds of (di)alkanolamines, which could present a health hazard, are formed in the thickeners according to the invention.
Inventors
- 👤 Jacob K. Smid
- 👤 Reinout H. van der Veen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:25
CPC Classifications
C; C09; C09K; C09K3/00; C07; C07C; C07C233/00; C07C233/01; C07C233/16; C07C233/17; C07C233/18; C07C233/20; C11; C11D; C11D3/00; C11D3/16; C11D3/26; C11D3/32
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
68 words
Composition comprising a mixture of amidated fatty acids or derivatives thereof with the formula ##STR4## wherein R 1 is absent or an alkyl group with 2-4 C-atoms, the average value of n is 0.5 to 3, and R represents a mixture of fatty acid radicals with 14-24 C-atoms, obtained by aminolysing and ethoxylating oils produced from the plant species "Brassica" with an eruca acid content lower than 5%.
Claim 2
Dependent Claim
68 words
Composition comprising a mixture of amidated fatty acids or derivatives thereof with the formula ##STR4## wherein R 1 is absent or an alkyl group with 2-4 C-atoms, the average value of n is 0.5 to 3, and R represents a mixture of fatty acid radicals with 14-24 C-atoms, obtained by aminolysing and ethoxylating oils produced from the plant species "Brassica" with an eruca acid content lower than 5%.
Claim 3
Dependent Claim
15 words
Mixture according to claim 1, wherein R 1 is an ethyl or an isopropyl group.
Claim 4
Dependent Claim
15 words
Mixture according to claim 1 or 2, wherein the averaged value of n is 1-2.
Claim 5
Dependent Claim
48 words
Composition comprising a mixture of amidated fatty acids, or derivatives thereof, with the formula ##STR5## wherein R represents a mixture of fatty acid radicals with 14-24 C-atoms, obtained by aminolysing rape oils, produced from the plant species "Brassica" with an eruca acid content lower than 5%, with 2-(2-aminoethoxy)ethanol.
Claim 6
Dependent Claim
48 words
Composition comprising a mixture of amidated fatty acids, or derivatives thereof, with the formula ##STR5## wherein R represents a mixture of fatty acid radicals with 14-24 C-atoms, obtained by aminolysing rape oils, produced from the plant species "Brassica" with an eruca acid content lower than 5%, with 2-(2-aminoethoxy)ethanol.
Claim 7
Dependent Claim
58 words
Composition comprising a mixture of amidated fatty acids or derivatives thereof with the formula ##STR6## wherein the average value of n is 0.5 to 3 and R represents a mixture of fatty acid radicals with 14-24 C-atoms obtained by aminolysing and ethoxylating rape oils produced from the plant species `Brassica` with an eruca acid content lower than 5%.
Claim 8
Dependent Claim
58 words
Composition comprising a mixture of amidated fatty acids or derivatives thereof with the formula ##STR6## wherein the average value of n is 0.5 to 3 and R represents a mixture of fatty acid radicals with 14-24 C-atoms obtained by aminolysing and ethoxylating rape oils produced from the plant species `Brassica` with an eruca acid content lower than 5%.
Claim 9
Dependent Claim
13 words
Thickener consisting essentially of a mixture according to claims 1, 4 or 5.
Claim 10
Dependent Claim
11 words
Detergent composition containing one or more thickeners according to claim 6.
Claim 11
Dependent Claim
107 words
Detergent composition comprising one or more thickeners comprising a mixture of amidated fatty acids or derivatives thereof with the formula ##STR7## wherein R' is absent or an alkyl group with 2-4 C-atoms, the average value of n is 0.5 to 3 and R represents a mixture of fatty acid radicals with 14-24 C-atoms obtained by aminolysing and ethoxylating rape oil produced from the plant species `Brassica` with an eruca acid content lower than 5%, said thickener giving a maximum viscosity of at least 300 mPa.s, the thickener concentration being 0.25-5%, and said surfactant or detergent or composition further including NaCl at a concentration of less than 5%.
Claim 12
Dependent Claim
107 words
Detergent composition comprising one or more thickeners comprising a mixture of amidated fatty acids or derivatives thereof with the formula ##STR7## wherein R' is absent or an alkyl group with 2-4 C-atoms, the average value of n is 0.5 to 3 and R represents a mixture of fatty acid radicals with 14-24 C-atoms obtained by aminolysing and ethoxylating rape oil produced from the plant species `Brassica` with an eruca acid content lower than 5%, said thickener giving a maximum viscosity of at least 300 mPa.s, the thickener concentration being 0.25-5%, and said surfactant or detergent or composition further including NaCl at a concentration of less than 5%.
References Cited (Backward Citations)
DE1618397A1
Cited
US4072622A
Cited
US4169075A
Cited
US4438012A
Cited
US4179391A
Cited
US4312771A
Cited
JPS6210199A
Cited
JPS6210197A
Cited
JPS6257495A
Cited
EP0219893A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1995-06-23 | 1995-12-23 | 1996-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-23 | 1999-12-23 | 2000-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-23 | 2003-12-23 | 2004-06-23 | $7700.00 | Window Closed / Lapsed |