US3194780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic rubber
Assignee: Neville Chemical Co
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Filing: 1960-03-04
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Granted: 1965-07-13
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Expires: 1980-03-04
Abstract
No abstract record available.
Inventors
- 👤 Wilbur J Wald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:56
CPC Classifications
C; C08; C08L; C08L21/00; C08K; C08K5/00; C08K5/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN THE MANUFACTURE OF IMPROVED, NON-BLEEDING VULCANIZATES FROM AN OIL MASTERBATCH HIGH MOLECULAR WEIGHT ELASTOMERIC DIENE POLYMER, SAID OIL MASTERBATCH COMPRISING A POLYMER HAVING A MOONEY VISCOSITY IN EXCESS OF ABOUT 60 (M.L. 100*C./4''), AND CONTAINING AT LEAST 35 PARTS PER 100 PARTS OF ELASTOMER OF A HYDROCARBON EXTENDER OIL AT LEAST ABOUT 90% OF WHICH BOILS ABOVE 250*C., THE SAID OIL AND THE PROPORTION THEREOF IN THE MASTERBATCH BEING SUCH THAT A BLEEDING VULCANIZATE IS OBTAINED UPON CURING IN THE ABSENCE OF ADDED RESIN; THE IMPROVEMENT WHICH COMPRISES INCORPORATING IN SAID OIL MASTERBATCH, PRIOR TO CURING, ABOUT 5 PARTS (PER 100 PARTS OF POLYMER) OF A THERMOSPLASTIC COUMARONE-INDENE RESIN HAVING A BALL AND RING SOFTENING POINT FROM ABOUT 10*C. TO ABOUT 125*C.
Claim 2
Dependent Claim
123 words
IN THE MANUFACTURE OF IMPROVED, NON-BLEEDING VULCANIZATES FROM AN OIL MASTERBATCH HIGH MOLECULAR WEIGHT ELASTOMERIC DIENE POLYMER, SAID OIL MASTERBATCH COMPRISING A POLYMER HAVING A MOONEY VISCOSITY IN EXCESS OF ABOUT 60 (M.L. 100*C./4''), AND CONTAINING AT LEAST 35 PARTS PER 100 PARTS OF ELASTOMER OF A HYDROCARBON EXTENDER OIL AT LEAST ABOUT 90% OF WHICH BOILS ABOVE 250*C., THE SAID OIL AND THE PROPORTION THEREOF IN THE MASTERBATCH BEING SUCH THAT A BLEEDING VULCANIZATE IS OBTAINED UPON CURING IN THE ABSENCE OF ADDED RESIN; THE IMPROVEMENT WHICH COMPRISES INCORPORATING IN SAID OIL MASTERBATCH, PRIOR TO CURING, ABOUT 5 PARTS (PER 100 PARTS OF POLYMER) OF A THERMOSPLASTIC COUMARONE-INDENE RESIN HAVING A BALL AND RING SOFTENING POINT FROM ABOUT 10*C. TO ABOUT 125*C.
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |