US5283009A
Expired / Lapsed
US
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Process for preparing polyhydroxy fatty acid amide compositions
Assignee: Procter and Gamble Co
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Filing: 1992-03-10
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Granted: 1994-02-01
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Expires: 2012-03-10
Abstract
Abstract A process for preparing polyhydroxy fatty acid amide compositions which are pumpable at temperatures between about 70 degrees F. (21.1 degrees C.) and about 120 degrees F. (48.9 degrees C.) by adding certain soluble inorganic salts or salts of C1-3 carboxylic acids to a heated polyhydroxy fatty acid amide preparation.
Inventors
- 👤 D. Thomas Speckman
- 👤 Lawrence C. Grahl
- 👤 Kofi Ofosu-Asante
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:09
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/38; C11D1/52; C11D1/525; C11D3/00; C11D3/16; C11D3/26; C11D3/32
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
166 words
A process for preparing a pumpable polyhydroxy fatty acid amide composition, comprising: (a) heating to substantially liquid form from about 90% to about 100% by weight of a mixture comprising from about 30% to about 100%, by weight of polyhydroxy fatty acid amide, said mixture being heated to not above 17.8° above its melting point; and (b) mixing until substantially dissolved from about 0.1% to about 10%, by weight of said compositions, of a soluble inorganic salt or C 1-3 carboxylate salt with said heated mixture of step (a); said salt including a metal ion selected from the group consisting of potassium, magnesium, calcium, aluminum, lithium, cesium, strontium, and mixtures thereof; wherein said composition comprises from about 10% to about 60% by weight of water and said composition is in a liquid state at a melting point below the normal melting point of said polyhydroxy fatty acid amide and is pumpable at a temperature between about 70° F. (21.1° C.) and about 120° F. (48.9° C.).
Claim 2
Dependent Claim
166 words
A process for preparing a pumpable polyhydroxy fatty acid amide composition, comprising: (a) heating to substantially liquid form from about 90% to about 100% by weight of a mixture comprising from about 30% to about 100%, by weight of polyhydroxy fatty acid amide, said mixture being heated to not above 17.8° above its melting point; and (b) mixing until substantially dissolved from about 0.1% to about 10%, by weight of said compositions, of a soluble inorganic salt or C 1-3 carboxylate salt with said heated mixture of step (a); said salt including a metal ion selected from the group consisting of potassium, magnesium, calcium, aluminum, lithium, cesium, strontium, and mixtures thereof; wherein said composition comprises from about 10% to about 60% by weight of water and said composition is in a liquid state at a melting point below the normal melting point of said polyhydroxy fatty acid amide and is pumpable at a temperature between about 70° F. (21.1° C.) and about 120° F. (48.9° C.).
Claim 3
Dependent Claim
28 words
A process according to claim 1 wherein said soluble inorganic salt is selected from the group consisting of chloride, sulfate, sulfide, nitrate, formate, acetate, propionate, and mixtures thereof.
Claim 4
Dependent Claim
69 words
A process according to claim 2 wherein said polyhydroxy fatty acid amide is of the formula: ##STR3## wherein: R 1 is H, C 1 -C 4 hydrocarbyl, 2-hydroxy ethyl, 2-hydroxy propyl, or a mixture thereof; and R 2 is a C 5 -C 31 hydrocarbyl; and Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative.
Claim 5
Dependent Claim
25 words
A process according to claim 3 wherein said soluble inorganic salt is selected from the group consisting of chloride, sulfate, sulfide, nitrate, and mixtures thereof.
Claim 6
Dependent Claim
28 words
A process according to claim 4 wherein said soluble inorganic salt or C 1-3 carboxylate salt is from about 0.1% to about 8% by weight of said composition.
Claim 7
Dependent Claim
17 words
A process according to claim 5 wherein said soluble inorganic salt is magnesium chloride or calcium chloride.
Claim 8
Dependent Claim
18 words
A process according to claim 5 wherein said soluble inorganic salt is mixed in by agitation and stirring.
Claim 9
Dependent Claim
43 words
A process according to claim 6 wherein said polyhydroxy fatty acid amide is formed prior to step (a) by reacting an N-alkyl glucamine with a fatty ester in an organic hydroxy solvent in the presence of a base catalyst and removing said solvent.
Claim 10
Dependent Claim
22 words
A process according to claim 8 wherein said polyhydroxy fatty acid amide composition has a pH between about 7.0 and about 9.0.
Claim 11
Dependent Claim
13 words
A process according to claim 9 wherein said N-alkyl glucamine is N-methyl glucamine.
Claim 12
Dependent Claim
26 words
A process according to claim 10 wherein said composition is pumpable at a temperature between about 80° F. (26.6° C.) and about 100° F. (37.80° C.).
References Cited (Backward Citations)
US2703798A
Cited
US3764531A
Cited
US3644204A
Cited
US4107095A
Cited
US4118404A
Cited
US5057246A
Cited
US5009814A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1997-01-31 | 1997-08-02 | 1998-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-31 | 2001-08-02 | 2002-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-31 | 2005-08-02 | 2006-02-01 | $7700.00 | Window Closed / Lapsed |