US4769078A
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Organophilic clay modified with betaine type compounds
Assignee: Sued Chemie Inc
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Filing: 1988-03-07
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Granted: 1988-09-06
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Expires: 2008-03-07
Abstract
Abstract Organophilic clays, having enhanced dispersibility in organic systems are made by reacting a smectite type clay with a quaternary ammonium compound and a betaine type compound. These organophilic clays are useful for alteriing the rheological properties of organic systems.
Inventors
- 👤 Su C. Tso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:11
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/02; C09K8/04; C09K8/14; C09K8/145; C01; C01B; C01B33/00; C01B33/20; C01B33/36; C01B33/38; C01B33/44; C09D; C09D7/00; C09D7/40; C09D7/45
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
132 words
Organophilic clay composition comprising the reaction product of a smectite type clay having a cation exchange capacity of at least 75 milliequivalents per 100 grams of clay with (a) a quaternary ammonium compound having the structure: ##STR5## wherein R 1 is an alkyl group having about 12 to about 22 carbon atoms, wherein R 2 , R 3 and R 4 are alkyl groups containing 1 to about 22 carbon atoms, aryl groups and aralkyl groups containing 7 to about 22 carbon atoms and wherein M is chloride, bromide, iodide, nitrite, nitrate, sulfate, hydroxide, or acetate, and (b) a betaine type compound having the structure: ##STR6## wherein R 1 , R 2 and R 3 have the same meaning as described above and wherein x has a value of 1 to 4.
Claim 2
Dependent Claim
132 words
Organophilic clay composition comprising the reaction product of a smectite type clay having a cation exchange capacity of at least 75 milliequivalents per 100 grams of clay with (a) a quaternary ammonium compound having the structure: ##STR5## wherein R 1 is an alkyl group having about 12 to about 22 carbon atoms, wherein R 2 , R 3 and R 4 are alkyl groups containing 1 to about 22 carbon atoms, aryl groups and aralkyl groups containing 7 to about 22 carbon atoms and wherein M is chloride, bromide, iodide, nitrite, nitrate, sulfate, hydroxide, or acetate, and (b) a betaine type compound having the structure: ##STR6## wherein R 1 , R 2 and R 3 have the same meaning as described above and wherein x has a value of 1 to 4.
Claim 3
Dependent Claim
46 words
The composition of claim 1 wherein (A) is present in the amount of about 50 to about 200 meqs and (B) is present in the amount of about 1 to about 100 meqs, said meqs being based on 100 grams of clay. (100 percent active basis).
Claim 4
Dependent Claim
32 words
The composition of claim 2 wherein (A) is present in the amount of about 100 to about 140 meqs and (B) is present in the amount of 20 to about 40 meqs.
Claim 5
Dependent Claim
35 words
The composition of claim 1 wherein R 1 and R 2 in (A) are alkyl groups having about 12 to about 22 carbon atoms, R 3 and R 4 are methyl and M is chloride.
Claim 6
Dependent Claim
32 words
The composition of claim 1 wherein R 1 and R 2 in (B) are alkyl groups having about 12 to about 22 carbon atoms, R 3 is methyl and x is 1.
Claim 7
Dependent Claim
13 words
The composition of claim 1 wherein (A) is di(hydrogenated tallow) dimethyl ammonium chloride.
Claim 8
Dependent Claim
25 words
The composition of claim 1 wherein (B) contains two hydrogenated tallow groups and one methyl group on the nitrogen atom and wherein n is 1.
References Cited (Backward Citations)
US4510081A
Cited
US4631091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-06 | 1992-03-07 | 1992-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-06 | 1996-03-07 | 1996-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-06 | 2000-03-07 | 2000-09-06 | $7700.00 | Window Closed / Lapsed |