US3351602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film-forming acrylonitrile polymer and latex thereof
Assignee: Standard Oil Co
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Filing: 1965-08-19
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Granted: 1967-11-07
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Expires: 1985-08-19
Abstract
No abstract record available.
Inventors
- 👤 William R Dunnavant
- 👤 Ruth A Botham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:49
CPC Classifications
C; C08; C08F; C08F265/00; C08F265/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
THE STABLE AQUEOUS LATEX HAVING A MINIMUM FILMFORMING TEMPERATURE NO GREATER THAN 25*C. OF A COPOLYMER CONTAINING FROM 45 TO 55% BY WEIGHT OF POLYMERIZED ACRYLONITRILE, SAID COPOLYMER BEING COMPOSED OF A MAIN POLYMER BACKBONE OF FROM AOBUT 80 TO 85% BY WEIGHT OF POLYMERIZED ACRYLONITRILE AND FROM ABOUT 20 TO 15% BY WEIGHT OF AT LEAST ONE POLYMERIZED ACRYLATE ESTER HAVING THE STRUCTURE CH2=CHCOOR WHEREIN R IS AN ALKYL GROUP HAVING FROM 2 TO 4 CARBON ATOMS, SAID MAIN POLYMER BACKBONE BEING OVERPOLYMERIZED WITH A MAJOR PROPORTION OF AT LEAST ONE ACRYLATE ESTER HAVING THE STRUCTURE CH2=CHCOOR WHEREIN R HAS THE FOREGOING DESIGNATION.
Claim 2
Dependent Claim
104 words
THE STABLE AQUEOUS LATEX HAVING A MINIMUM FILMFORMING TEMPERATURE NO GREATER THAN 25*C. OF A COPOLYMER CONTAINING FROM 45 TO 55% BY WEIGHT OF POLYMERIZED ACRYLONITRILE, SAID COPOLYMER BEING COMPOSED OF A MAIN POLYMER BACKBONE OF FROM AOBUT 80 TO 85% BY WEIGHT OF POLYMERIZED ACRYLONITRILE AND FROM ABOUT 20 TO 15% BY WEIGHT OF AT LEAST ONE POLYMERIZED ACRYLATE ESTER HAVING THE STRUCTURE CH2=CHCOOR WHEREIN R IS AN ALKYL GROUP HAVING FROM 2 TO 4 CARBON ATOMS, SAID MAIN POLYMER BACKBONE BEING OVERPOLYMERIZED WITH A MAJOR PROPORTION OF AT LEAST ONE ACRYLATE ESTER HAVING THE STRUCTURE CH2=CHCOOR WHEREIN R HAS THE FOREGOING DESIGNATION.
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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |