Patent US2582991A successfully refreshed from Google Patents.
US2582991A
Expired / Lapsed
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Method of forming a sprayable synthetic rubber solution
Assignee: Heresite and Chemical Co
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Filing: 1948-12-11
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Granted: 1952-01-22
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Expires: 1968-12-11
Abstract
No abstract record available.
Inventors
- 👤 Hempel Charles Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:51
CPC Classifications
C; C09; C09D; C09D109/00; C09D109/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
IN A METHOD OF FORMING A SPRAYABLE SYNTHETIC RUBBER SOLUTION WHICH INCLUDES COPOLYMERIZING UNDER HEAT AND PRESSURE 50 TO 90 PARTS BY WEIGHT OF BUTADIENE WITH 10 TO 50 PARTS BY WEIGHT OF A MINERIAL COPOLYMERIZABLE THEREWITH OF THE CLASS CONSISTING OF STYRENE AND ACRYLONITRILE IN THE PRESENCE OF FROM 10 TO 20 PARTS BY WEIGHT OF A MODIFIER CHOSEN FROM THE CLASS CONSISTING OF BENZOL AND CYCLOHEXANE, AND COAGULATING THE COPOLYMERIZATE, THE STEPS WHICH COMPRISE MIXING WITH 100 TO 150 PARTS BY WEIGHT OF THE CAOGULATED COPOLYMERIZATE, 50 TO 200 PARTS BY WEIGHT OF A FINELY DIVIDED INERT PIGMENT, 2 TO 25 PARTS BY WEIGHT OF A PLASTICIZER, 5 TO 40 PARTS BY WEIGHT OF SULFUR, 1 TO 5 PARTS BY WEIGHT OF AN ACTIVATOR, AND 2 TO 10 PARTS BY WEIGHT OF AN ACCELERATOR, AND THEN DISSOLVING THE MIXTURE IN 200 TO 500 PARTS BY WEIGHT OF AN AROMATIC HYDROCARBON SOLVENT THERE FOR HAVING A BOILING POINT OF BETWEEN 80* C. AND 200* C. AND CHOSEN FROM THE CLASS CONSISTING OF BENZENE AND ALIPHATIC SUBSTITUTED BENZENE WITH EACH OF THE SUBSTITUENTS HAVING FROM 1 TO 4 CARBON ATOMS.
Claim 2
Dependent Claim
190 words
IN A METHOD OF FORMING A SPRAYABLE SYNTHETIC RUBBER SOLUTION WHICH INCLUDES COPOLYMERIZING UNDER HEAT AND PRESSURE 50 TO 90 PARTS BY WEIGHT OF BUTADIENE WITH 10 TO 50 PARTS BY WEIGHT OF A MINERIAL COPOLYMERIZABLE THEREWITH OF THE CLASS CONSISTING OF STYRENE AND ACRYLONITRILE IN THE PRESENCE OF FROM 10 TO 20 PARTS BY WEIGHT OF A MODIFIER CHOSEN FROM THE CLASS CONSISTING OF BENZOL AND CYCLOHEXANE, AND COAGULATING THE COPOLYMERIZATE, THE STEPS WHICH COMPRISE MIXING WITH 100 TO 150 PARTS BY WEIGHT OF THE CAOGULATED COPOLYMERIZATE, 50 TO 200 PARTS BY WEIGHT OF A FINELY DIVIDED INERT PIGMENT, 2 TO 25 PARTS BY WEIGHT OF A PLASTICIZER, 5 TO 40 PARTS BY WEIGHT OF SULFUR, 1 TO 5 PARTS BY WEIGHT OF AN ACTIVATOR, AND 2 TO 10 PARTS BY WEIGHT OF AN ACCELERATOR, AND THEN DISSOLVING THE MIXTURE IN 200 TO 500 PARTS BY WEIGHT OF AN AROMATIC HYDROCARBON SOLVENT THERE FOR HAVING A BOILING POINT OF BETWEEN 80* C. AND 200* C. AND CHOSEN FROM THE CLASS CONSISTING OF BENZENE AND ALIPHATIC SUBSTITUTED BENZENE WITH EACH OF THE SUBSTITUENTS HAVING FROM 1 TO 4 CARBON ATOMS.
References Cited (Backward Citations)
US2467382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-21 | 1955-07-23 | 1956-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-21 | 1959-07-23 | 1960-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-21 | 1963-07-23 | 1964-01-22 | $7700.00 | Window Closed / Lapsed |