US2776269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-curing synthetic rubber
Assignee: Heresite and Chemical Co
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Filing: 1952-12-19
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Granted: 1957-01-01
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Expires: 1972-12-19
Abstract
No abstract record available.
Inventors
- 👤 Herbert E Pleuss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:39
CPC Classifications
C; C08; C08L; C08L9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A SHEET OF SYNTHETIC RUBBER COMPRISING A COPOLYMER OF FROM 1 TO 9 PARTS BY WEIGHT OF BUTADIENE, AND ONE PART BY WEIGHT OF A MATERIAL COPOLYMERIZABLE THEREWITH OF THE CLASS CONSISTING OF STYRENE AND ACRYLONITRILE, EACH 100 PARTS BY WEIGHT OF SAID COPOLYMER BEING MIXED WITH A PIGMENT, A VULCANIZER, A PLASTICIZER, AN ACTIVATOR, AND AN ACCELERATOR IN SUCH PROPORTIONS AS TO RENDER THE SHEET SOFT AND PLASTIC AND HAVING THE PROPERTY OF BEING SELF-CURING AT ROOM TEMPERATURE WITHIN ABOUT 14 DAYS, SAID PROPORTIONS BEING WITHIN THE RANGES OF 100 TO 150 PARTS BY WEIGHT OF A PIGMENT, 2 TO 20 PARTS BY WEIGHT OF A PLASTICIER, 1 TO 5 PARTS BY WEIGHT OF AN ACTIVATOR AND 12 TO 24 PARTS BY WEIGHT OF A COMBINATION OF VULCANIZER AND AN ACCELERATOR WITH AT LEAST 14% BY WEIGHT OF THE COMBINATION BEING A VULCANIZER AND AT LEAST 33% BY WEIGHT OF THE COMBINATION BEING AN ACCELERATOR.
Claim 2
Dependent Claim
156 words
A SHEET OF SYNTHETIC RUBBER COMPRISING A COPOLYMER OF FROM 1 TO 9 PARTS BY WEIGHT OF BUTADIENE, AND ONE PART BY WEIGHT OF A MATERIAL COPOLYMERIZABLE THEREWITH OF THE CLASS CONSISTING OF STYRENE AND ACRYLONITRILE, EACH 100 PARTS BY WEIGHT OF SAID COPOLYMER BEING MIXED WITH A PIGMENT, A VULCANIZER, A PLASTICIZER, AN ACTIVATOR, AND AN ACCELERATOR IN SUCH PROPORTIONS AS TO RENDER THE SHEET SOFT AND PLASTIC AND HAVING THE PROPERTY OF BEING SELF-CURING AT ROOM TEMPERATURE WITHIN ABOUT 14 DAYS, SAID PROPORTIONS BEING WITHIN THE RANGES OF 100 TO 150 PARTS BY WEIGHT OF A PIGMENT, 2 TO 20 PARTS BY WEIGHT OF A PLASTICIER, 1 TO 5 PARTS BY WEIGHT OF AN ACTIVATOR AND 12 TO 24 PARTS BY WEIGHT OF A COMBINATION OF VULCANIZER AND AN ACCELERATOR WITH AT LEAST 14% BY WEIGHT OF THE COMBINATION BEING A VULCANIZER AND AT LEAST 33% BY WEIGHT OF THE COMBINATION BEING AN ACCELERATOR.
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) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |