Patent US3396136A successfully refreshed from Google Patents.
US3396136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of alkenyl aromatic sulfonic acids with unsaturated monomers and their use as thickeners for non-polar solvents
Assignee: Dow Chemical Co
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Filing: 1965-06-14
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Granted: 1968-08-06
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Expires: 1985-06-14
Abstract
No abstract record available.
Inventors
- 👤 Richard T Dickerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:11
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/44
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
50 words
A LIPOPHIIC, LINEAR COPOLYMER OF AN ALKENYL AROMATIC SULFONIC ACID MONOMER AND A LIPOPHILIC, ETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZABLE THEREWITH, SAID COPOLYMER CONTAINING FROM ABOUT 0.05 TO ABOUT 3 ALKENYL AROMATIC SULFONIC ACID GRUPS IN POLYMERIZED FORM PER 100 COMBINED MONOMER UNITS, SAID ALKENYL AROMATIC SULFONIC ACID MONOMER HAVING THE FORMULA:
Claim 2
Dependent Claim
50 words
A LIPOPHIIC, LINEAR COPOLYMER OF AN ALKENYL AROMATIC SULFONIC ACID MONOMER AND A LIPOPHILIC, ETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZABLE THEREWITH, SAID COPOLYMER CONTAINING FROM ABOUT 0.05 TO ABOUT 3 ALKENYL AROMATIC SULFONIC ACID GRUPS IN POLYMERIZED FORM PER 100 COMBINED MONOMER UNITS, SAID ALKENYL AROMATIC SULFONIC ACID MONOMER HAVING THE FORMULA:
Claim 3
Dependent Claim
154 words
A COMPOSITION OF MATTER COMPRISING (A) A NONPOLAR ORGANIC SOLVENT HAVING A SOULUBILITY PARAMETER UP TO ABOUT 10.5 AT 25*C. SELECTED FROM THE GROUP CONSISTING OF ALIHATIC HYDROCARBONS, AROMTIC HYDROCARBONS, HALOGENATED AROMATIC HYDROCARBONS, HALOGENATED ALIPHATIC HYDROCARBONS, MONO-NITRO-SUBSTITUTED AROMATIC HYDROCARBONS, ALKYL AND ARYL THIOETHERS, CARBON DISULFIDE, TRIALKYL AND TRIAROMATIC ESTERS OF PHOSPHORIC ACID AND MIXTURES OF ORGANIC SOLVENTS CONSISTING OF A MAJOR PROPORTION OF AT LEAST ONE SOLVENT OF THE FOREGOING CLASSES OF NONPOLAR ORGANIC SOLVENTS, AND (B) DISSOLVED IN THE SOLVENT, A THICKENING QUANTITY WITHIN THE RANGE FROM ABOUT 0.05 UP TO ABOUT 10 PERCENT BY WEIGHT OF THE SOLVENT OF A METAL SALT OF A LIPOPHILIC, LINEAR, COPOLYMER OF AN ALKENYL AROMATIC SULFONIC ACID MONOMER AND A LIPOPHILIC, ETHYLENICALLY UNSATURATAED MONOMER COPOLYMERIZABLE THEREWITH, SAID COPOLYMER CONTAINING IN POLYMERIZED FORM FROM ABOUT 0.05 TO ABOUT 3 OF THE SULFONIC MONOMERS PER 100 COMBINED MONOMER UNITS, SAID ALKENYL AROMATIC SUFONIC ACID MONOMER HAVING THE FORMULA:
Claim 4
Dependent Claim
154 words
A COMPOSITION OF MATTER COMPRISING (A) A NONPOLAR ORGANIC SOLVENT HAVING A SOULUBILITY PARAMETER UP TO ABOUT 10.5 AT 25*C. SELECTED FROM THE GROUP CONSISTING OF ALIHATIC HYDROCARBONS, AROMTIC HYDROCARBONS, HALOGENATED AROMATIC HYDROCARBONS, HALOGENATED ALIPHATIC HYDROCARBONS, MONO-NITRO-SUBSTITUTED AROMATIC HYDROCARBONS, ALKYL AND ARYL THIOETHERS, CARBON DISULFIDE, TRIALKYL AND TRIAROMATIC ESTERS OF PHOSPHORIC ACID AND MIXTURES OF ORGANIC SOLVENTS CONSISTING OF A MAJOR PROPORTION OF AT LEAST ONE SOLVENT OF THE FOREGOING CLASSES OF NONPOLAR ORGANIC SOLVENTS, AND (B) DISSOLVED IN THE SOLVENT, A THICKENING QUANTITY WITHIN THE RANGE FROM ABOUT 0.05 UP TO ABOUT 10 PERCENT BY WEIGHT OF THE SOLVENT OF A METAL SALT OF A LIPOPHILIC, LINEAR, COPOLYMER OF AN ALKENYL AROMATIC SULFONIC ACID MONOMER AND A LIPOPHILIC, ETHYLENICALLY UNSATURATAED MONOMER COPOLYMERIZABLE THEREWITH, SAID COPOLYMER CONTAINING IN POLYMERIZED FORM FROM ABOUT 0.05 TO ABOUT 3 OF THE SULFONIC MONOMERS PER 100 COMBINED MONOMER UNITS, SAID ALKENYL AROMATIC SUFONIC ACID MONOMER HAVING THE FORMULA:
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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) | 1971-08-06 | 1972-02-05 | 1972-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-06 | 1976-02-05 | 1976-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-06 | 1980-02-05 | 1980-08-06 | $7700.00 | Window Closed / Lapsed |