Patent US2530355A successfully refreshed from Google Patents.
US2530355A
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Catalytic plasticizers for natural and synthetic rubber
Assignee: Wyeth Holdings LLC
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Filing: 1948-11-06
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Granted: 1950-11-14
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Expires: 1968-11-06
Abstract
No abstract record available.
Inventors
- 👤 Hook Edwin Oscar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:16
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/372; C08K5/3725; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A PROCESS OF INCREASING THE RATE OF PLASTICIZING AN UNVULCANIZED ELASTOMER SELECTED FROM THE GROUP CONSISTING OF VULCANIZABLE NATURAL RUBBER AND SYNTHETIC RUBBER-LIKE POLYMERS OF CONJUGATED DIOLEFINIC MONOMERS CAPABLE OF BEING PLASTICIZED BY HOT MASTICATION IN THE PRESENCE OF OXYGEN, WHICH COMPRISES ADMIXING THE ELASTOMER WITH FROM 0.025-5% OF AN O,O''-DISUBSTITUTED-DIPHENYLDISULFIDE HAVING THE TYPE FORMULA
Claim 2
Dependent Claim
55 words
A PROCESS OF INCREASING THE RATE OF PLASTICIZING AN UNVULCANIZED ELASTOMER SELECTED FROM THE GROUP CONSISTING OF VULCANIZABLE NATURAL RUBBER AND SYNTHETIC RUBBER-LIKE POLYMERS OF CONJUGATED DIOLEFINIC MONOMERS CAPABLE OF BEING PLASTICIZED BY HOT MASTICATION IN THE PRESENCE OF OXYGEN, WHICH COMPRISES ADMIXING THE ELASTOMER WITH FROM 0.025-5% OF AN O,O''-DISUBSTITUTED-DIPHENYLDISULFIDE HAVING THE TYPE FORMULA
References Cited (Backward Citations)
US2470945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |