US4540510A
Expired / Lapsed
US
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Synergistic thickener mixtures of amps polymers with other thickeners
Assignee: Henkel Corp
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Filing: 1984-02-13
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Granted: 1985-09-10
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Expires: 2004-02-13
Abstract
Abstract Synergistic thickener mixture comprising a mixture of a polymer of 2-acrylamido-2-methylpropane sulfonic acid and certain water soluble polymers such as the galactomannan gums, derivatives thereof, cellulose derivatives and polyoxyalkylene oxide polymers. The composition finds utility in earth formation fracturing, textile print pastes, suspending pigments in paints and gelling alcohol-based cosmetic formulations.
Inventors
- 👤 Curtis L. Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:46
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/8141; A61K8/8158; A61K8/73; A61K8/731; A61K8/737; A61Q; A61Q19/00; C; C08; C08L; C08L1/00; C08L1/08; C08L1/26; C08L1/28; C08L1/284; C08L33/00; C08L33/24; C08L33/26; C08L5/00; C08L5/14; D; D06; D06P; D06P1/00; D06P1/44; D06P1/52; D06P1/5207; D06P1/525; D06P1/5257; A61K2800/00; A61K2800/40; A61K2800/59; A61K2800/594; C08L2201/00; C08L2201/50; C08L71/00; C08L71/02; Y; Y10; Y10S; Y10S507/00; Y10S507/922
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
75 words
A composition comprising a mixture of a polymer of an acrylamido methylpropanesulfonic acid having a molecular weight of above about one million and a water soluble polymer selected from the group consisting of galactomannan gums, hydroxyalkyl ethers of galactomannan gums, hydroxyalkyl cellulose ethers, polyalkylene oxide polymers and mixtures thereof, wherein the alkyl and alkylene groups contain from 2 to 8 carbon atoms, said polymers in said mixture being in a ratio to synergistically thicken liquids.
Claim 2
Dependent Claim
75 words
A composition comprising a mixture of a polymer of an acrylamido methylpropanesulfonic acid having a molecular weight of above about one million and a water soluble polymer selected from the group consisting of galactomannan gums, hydroxyalkyl ethers of galactomannan gums, hydroxyalkyl cellulose ethers, polyalkylene oxide polymers and mixtures thereof, wherein the alkyl and alkylene groups contain from 2 to 8 carbon atoms, said polymers in said mixture being in a ratio to synergistically thicken liquids.
Claim 3
Dependent Claim
38 words
A compositions as defined in claim 1 wherein said acrylamido polymer contains the repeating linkage. ##STR7## wherein x has a value such that the molecular weight is at least 1,000,000 and R is H or CH 3 .
Claim 4
Dependent Claim
19 words
A composition as defined in claim 1 wherein said acrylamido polymer is a homopolymer of 2-acrylamido-2-methyl propane sulfonic acid.
Claim 5
Dependent Claim
14 words
A composition as defined in claim 3 wherein said homopolymer is the sodium salt.
Claim 6
Dependent Claim
21 words
A composition as defined in claim 1 wherein said acrylamido polymer comprises from 10 to 90% by weight of the mixture.
Claim 7
Dependent Claim
43 words
A composition as defined in claim 1 wherein said water soluble polymer is selected from the group consisting of guar gum, locust bean gum, tara gum, hydroxyethyl guar, hydroxypropyl guar, hydroxyethyl locust bean, hydroxypropyl locust bean, hydroxyethyl cellulose, hydroxypropyl cellulose and polyethylene oxide.
Claim 8
Dependent Claim
89 words
A thickened liquid composition comprising a liquid selected from the group consisting of water, an alcohol and mixtures thereof and a thickener, said thickener comprising a mixture of a polymer of an acrylamido methylpropanesulfonic acid and a water soluble polymer selected from the group consisting of galactomannan gums, hydroxyalkyl ethers of galactomannan gums, hydroxyalkyl cellulose ethers, polyalkylene oxide polymers and mixtures thereof, wherein the alkyl and alkylene groups contain from 2 to 8 carbon atoms, said polymers in said mixture being in a ratio to synergistically thicken said liquids.
Claim 9
Dependent Claim
89 words
A thickened liquid composition comprising a liquid selected from the group consisting of water, an alcohol and mixtures thereof and a thickener, said thickener comprising a mixture of a polymer of an acrylamido methylpropanesulfonic acid and a water soluble polymer selected from the group consisting of galactomannan gums, hydroxyalkyl ethers of galactomannan gums, hydroxyalkyl cellulose ethers, polyalkylene oxide polymers and mixtures thereof, wherein the alkyl and alkylene groups contain from 2 to 8 carbon atoms, said polymers in said mixture being in a ratio to synergistically thicken said liquids.
Claim 10
Dependent Claim
39 words
A thickened composition as defined in claim 7 wherein said acrylamido polymer contains the repeating linkage. ##STR8## wherein x has a value such that the molecular weight is at least 1,000,000 and R is H or CH 3 .
Claim 11
Dependent Claim
20 words
A thickened composition as defined in claim 7 wherein said acrylamido polymer is a homopolymer of 2-acrylamido-2-methyl propane sulfonic acid.
Claim 12
Dependent Claim
44 words
A thickened composition as defined in claim 7 wherein said water soluble polymer is selected from the group consisting of guar gum, locust bean gum, tara gum, hydroxyethyl guar, hydroxypropyl guar, hydroxyethyl locust bean, hydroxypropyl locust bean, hydroxyethyl cellulose, hydroxypropyl cellulose and polyethylene oxide.
Claim 13
Dependent Claim
46 words
A thickened composition as defined in claim 7 wherein said thickener is employed in an amount of 0.01 to 10% by weight based on said liquid and the ratio of acrylamido polymer to water soluble polymer is in the range of 90:10 to 10:90 by weight.
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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) | 1988-09-09 | 1989-03-11 | 1989-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-09 | 1993-03-11 | 1993-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-09 | 1997-03-11 | 1997-09-10 | $7700.00 | Window Closed / Lapsed |