US3030336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxypolybutadiene polymers
Assignee: FMC Corp
•
Filing: 1959-01-29
•
Granted: 1962-04-17
•
Expires: 1979-01-29
Abstract
No abstract record available.
Inventors
- 👤 Frank P Greenspan
- 👤 Anthony E Pepe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:27
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/027; C08C; C08C19/00; C08C19/04; C08C19/06; C08F; C08F136/00; C08F136/02; C08F136/04; C08F136/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
AN EPOXYPOLYBUTADIENE POLYMER CHARACTERIZED BY A SUBSTANTIALLY LINEAR STRUCTURE, AN EPOXY CONTENT OF ABOUT 7-11* BY WEIGHT OF POLYMER, A MOLECULAR WEIGHT OF ABOUT 300-3000, A MELT VISCOSISTY LESS THAN ABOUT 10,000 POISES AT 25*C. AT ZERO SHEAR AND AN IODINE NUMBER OF ABOUT 100-250,A ND PREPARED BY EPOXIDIZING A LIQUID POLYBUTADIENE CHARACTERIZED BY A SUBSTANTIALLY LINEAR STRUCTURE, A MOLECULE WEIGHT OF ABOUT 250-2500, A MELT VISCOSITY LESS THAN ABOUT 50 POISES AT 25*C. AT ZERO SHEAR, AN IODINE NUMBER OF ABOUT 350-450, AND OVER 65% OF THE UNSATURATED AS VINYL GROUPS.
Claim 2
Dependent Claim
92 words
AN EPOXYPOLYBUTADIENE POLYMER CHARACTERIZED BY A SUBSTANTIALLY LINEAR STRUCTURE, AN EPOXY CONTENT OF ABOUT 7-11* BY WEIGHT OF POLYMER, A MOLECULAR WEIGHT OF ABOUT 300-3000, A MELT VISCOSISTY LESS THAN ABOUT 10,000 POISES AT 25*C. AT ZERO SHEAR AND AN IODINE NUMBER OF ABOUT 100-250,A ND PREPARED BY EPOXIDIZING A LIQUID POLYBUTADIENE CHARACTERIZED BY A SUBSTANTIALLY LINEAR STRUCTURE, A MOLECULE WEIGHT OF ABOUT 250-2500, A MELT VISCOSITY LESS THAN ABOUT 50 POISES AT 25*C. AT ZERO SHEAR, AN IODINE NUMBER OF ABOUT 350-450, AND OVER 65% OF THE UNSATURATED AS VINYL GROUPS.
References Cited (Backward Citations)
US2660563A
Cited
US2870125A
Cited
US2826566A
Cited
US2829135A
Cited
US2838524A
Cited
US2935492A
Cited
US2876214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |