Patent US3219619A successfully refreshed from Google Patents.
US3219619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid hydrocarbon thickened with t-butyl styrene interpolymers containing metal carboxylate groups
Assignee: Dow Chemical Co
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Filing: 1960-11-09
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Granted: 1965-11-23
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Expires: 1980-11-09
Abstract
No abstract record available.
Inventors
- 👤 Richard T Dickerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:21
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/08; A01N25/10; B; B01; B01J; B01J19/00; B01J19/06; C; C06; C06B; C06B23/00; C06B23/001; C08; C08F; C08F220/00; C08F220/02; C08F220/04; C08F220/06; C08F8/00; C08F8/44; C10; C10L; C10L7/00; C10L7/02; Y; Y10; Y10S; Y10S260/00; Y10S260/31; Y10S526/00; Y10S526/933
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
202 words
A METHOD FOR THICKENING A NON-POLAR ORGANIC SOLVENT SELECTED FROM THE GROUP OF NON-POLAR ORGANIC SOLVENTS CONSISTING OF ALIPHATIC HYDROCARBONS, C YCLOALIPHATIC HYDROCARBONS AND MIXTURES OF THE FOREGOING, WHICH METHOD COMPRISES ADMIXING WITH SAID SOLVENT IN ANY ORDER (A) AT LEAST 0.1 PERCENT BY WEIGHT OF THE NON-POLAR ORGANIC SOLVENT OF A LIPOPHILIC, LINEAR POLYMERIC POLYCARBOXYLIC ACID CORRESPONDING TO A COPOLYMER OF ETHYLENICALLY UNSATURATED MONOMERS OF WHICH A SMALL PROPORTION HAVE MONOCARBOXYL GROUPS AND CONTAINING IN POLYMERIZED FORM A MAJOR PROPORTION BASED ON THE TOTAL COMBINED MONOMER UNITS OF TERTIARY-BUTYLSTYRENE, SAID POLYMERIC POLYCARBOXYLIC ACID BEING CHARACTERIZED BY HAVING AN AVERAGE OF FROM ABOUT 0.05 TO ABOUT 3 CARBOXYL GROUPS PER 100 COMBINED MONOMER UNITS AND AN AVERAGE OF AT LEAST 2 CARBOXYLATE GROUPS PER POLYMER MOLECULE AND (B) AN EFFECTIVE QUANTITY SUFFICIENT TO THICKEN A MIXTURE OF THE SOLVENT AND THE POLYMERIC POLYCARBOXYLIC ACID OF A METAL CATION SELECTED FROM THE GROUP OF MONO-, DI- AND TRIVALENT IONS OF METALS THAT FORM SALTS WITH AT LEAST ONE OF THE MINERAL ACIDS SELECTED FROM THE GROUP CONSISTING OF HYDROCHLORIC, SULFURIC, NITRIC AND CHLORIC ACIDS WHICH SALTS ARE IONIZABLE TO PROVIDE METAL IONS THAT ARE CHARACTERIZED BY A STABLE VALENCE STATE IN AQUEOUS MEDIA.
Claim 2
Independent Claim
202 words
A METHOD FOR THICKENING A NON-POLAR ORGANIC SOLVENT SELECTED FROM THE GROUP OF NON-POLAR ORGANIC SOLVENTS CONSISTING OF ALIPHATIC HYDROCARBONS, C YCLOALIPHATIC HYDROCARBONS AND MIXTURES OF THE FOREGOING, WHICH METHOD COMPRISES ADMIXING WITH SAID SOLVENT IN ANY ORDER (A) AT LEAST 0.1 PERCENT BY WEIGHT OF THE NON-POLAR ORGANIC SOLVENT OF A LIPOPHILIC, LINEAR POLYMERIC POLYCARBOXYLIC ACID CORRESPONDING TO A COPOLYMER OF ETHYLENICALLY UNSATURATED MONOMERS OF WHICH A SMALL PROPORTION HAVE MONOCARBOXYL GROUPS AND CONTAINING IN POLYMERIZED FORM A MAJOR PROPORTION BASED ON THE TOTAL COMBINED MONOMER UNITS OF TERTIARY-BUTYLSTYRENE, SAID POLYMERIC POLYCARBOXYLIC ACID BEING CHARACTERIZED BY HAVING AN AVERAGE OF FROM ABOUT 0.05 TO ABOUT 3 CARBOXYL GROUPS PER 100 COMBINED MONOMER UNITS AND AN AVERAGE OF AT LEAST 2 CARBOXYLATE GROUPS PER POLYMER MOLECULE AND (B) AN EFFECTIVE QUANTITY SUFFICIENT TO THICKEN A MIXTURE OF THE SOLVENT AND THE POLYMERIC POLYCARBOXYLIC ACID OF A METAL CATION SELECTED FROM THE GROUP OF MONO-, DI- AND TRIVALENT IONS OF METALS THAT FORM SALTS WITH AT LEAST ONE OF THE MINERAL ACIDS SELECTED FROM THE GROUP CONSISTING OF HYDROCHLORIC, SULFURIC, NITRIC AND CHLORIC ACIDS WHICH SALTS ARE IONIZABLE TO PROVIDE METAL IONS THAT ARE CHARACTERIZED BY A STABLE VALENCE STATE IN AQUEOUS MEDIA.
References Cited (Backward Citations)
US2723261A
Cited
US3046259A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |