US2657185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blends of elastomers with modified phenolic resins
Assignee: Standard Oil Development Co
•
Filing: 1948-08-19
•
Granted: 1953-10-27
•
Expires: 1968-08-19
Abstract
No abstract record available.
Inventors
- 👤 David W Young
- 👤 Raymond G Newberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:50
CPC Classifications
C; C08; C08L; C08L9/00; C08L9/02; C08L61/00; C08L61/04; C08L61/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A COMPOSITION OF MATTER COMPRISING 30 TO 60 PARTS OF A RESIN PREPARED BY CONDENSING FORMALDEHYDE WITH AN ALIPHATICALLY SUBSTITUTED PHENOL HAVING AS ITS ONLY SUBSTITUTED A C10 TO C21 HYDROCARBON SIDE CHAIN SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS, MONOOLEFINIC RADICALS AND DIOLEFINIC RADICALS; IN COMBINATION WITH 70 TO 40 PARTS OF A SOLID RUBBERY COPOLYMER OF 20 TO 35 PERCENT OF ACRYLONITRILE AND 80 TO 65 PERCENT OF BUTADIENE-1 3, THE RESIN HAVING BEEN INCOPORATED IN THE COPOLYMER WHILE THE RESIN WAS IN A FUSIBLE STATE.
Claim 2
Dependent Claim
89 words
A COMPOSITION OF MATTER COMPRISING 30 TO 60 PARTS OF A RESIN PREPARED BY CONDENSING FORMALDEHYDE WITH AN ALIPHATICALLY SUBSTITUTED PHENOL HAVING AS ITS ONLY SUBSTITUTED A C10 TO C21 HYDROCARBON SIDE CHAIN SELECTED FROM THE GROUP CONSISTING OF ALKYL RADICALS, MONOOLEFINIC RADICALS AND DIOLEFINIC RADICALS; IN COMBINATION WITH 70 TO 40 PARTS OF A SOLID RUBBERY COPOLYMER OF 20 TO 35 PERCENT OF ACRYLONITRILE AND 80 TO 65 PERCENT OF BUTADIENE-1 3, THE RESIN HAVING BEEN INCOPORATED IN THE COPOLYMER WHILE THE RESIN WAS IN A FUSIBLE STATE.
References Cited (Backward Citations)
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Cited
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Cited
US2532374A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |