US3977894A
Expired / Lapsed
US
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Rheological agent for non-aqueous fluid systems
Assignee: Elementis Specialties Inc
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Filing: 1975-09-19
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Granted: 1976-08-31
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Expires: 1995-09-19
Abstract
Abstract A self-activating organoclay rheological additive for non-aqueous fluid systems has been produced comprising a homogeneous mixture of an organically modified montmorillonite clay and two solid waxes, the waxes being the activators for the organic clay. The two waxes are finely divided particles of glyceryl tri-12-hydroxystearate and an amide wax having the formula HHSA ANGLE N-(CH2)n-N ANGLE RH where n is from 2 to 18, HSA is the acyl radical of 12-hydroxystearic acid, R is hydrogen or the acyl radical of 12-hydroxystearic acid.
Inventors
- 👤 Robert Winslow White
- 👤 Armando Franco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:22
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/04; C01; C01B; C01B33/00; C01B33/20; C01B33/36; C01B33/38; C01B33/44; C08; C08K; C08K3/00; C08K3/34; C08K5/00; C08K5/04; C08K5/10; C08K5/16; C08K5/20; C09D167/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
82 words
A self-activating organoclay rheological composition, useful as an additive for non-aqueous fluid systems, comprising a mixture of an organically modified montmorillonite clay and two solid waxes, said clay modified with a quaternary ammonium compound and said two waxes being (1) glyceryl tri-12-hydroxystearate and (2) an amide wax having the formula ##EQU4## where n is from 2 to 18, HSA is the acyl radical of 12-hydroxystearic acid, R is selected from the group consisting of hydrogen or the acyl radical of 12-hydroxystearic acid.
Claim 2
Dependent Claim
82 words
A self-activating organoclay rheological composition, useful as an additive for non-aqueous fluid systems, comprising a mixture of an organically modified montmorillonite clay and two solid waxes, said clay modified with a quaternary ammonium compound and said two waxes being (1) glyceryl tri-12-hydroxystearate and (2) an amide wax having the formula ##EQU4## where n is from 2 to 18, HSA is the acyl radical of 12-hydroxystearic acid, R is selected from the group consisting of hydrogen or the acyl radical of 12-hydroxystearic acid.
Claim 3
Dependent Claim
30 words
Composition according to claim 1 in which the two waxes are present in the composition in amount from about 5% to about 50%, preferably from about 10% to about 20%.
Claim 4
Dependent Claim
24 words
Composition according to claim 1 in which the ratio of the two waxes present in the mixture is from about 4:1 to about 1:4.
Claim 5
Dependent Claim
17 words
Composition according to claim 1 in which the amide wax is 12-hydroxystearic acid diamide of ethylene diamine.
Claim 6
Dependent Claim
17 words
Composition according to claim 1 in which the amide wax is 12-hyroxystearic acid diamide of hexylene diamine.
Claim 7
Dependent Claim
17 words
Composition according to claim 1 in which the amide wax is 12-hydroxystearic acid diamide of propylene diamine.
Claim 8
Dependent Claim
17 words
Composition according to claim 1 in which the amide wax is 12-hydroxystearic acid monoamide of ethylene amine.
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) | 1979-08-31 | 1980-03-01 | 1980-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-31 | 1984-03-01 | 1984-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-31 | 1988-03-01 | 1988-08-31 | $7700.00 | Window Closed / Lapsed |