US3028353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising polyurethane resin methylol phenol and filler, method of vulcanizing same, and tire tread therefrom
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1958-07-16
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Granted: 1962-04-03
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Expires: 1978-07-16
Abstract
No abstract record available.
Inventors
- 👤 Otto C Elmer
- 👤 Kermit V Weinstock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:31
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08L; C08L75/00; C08L75/04; C08L75/08; Y; Y10; Y10S; Y10S152/00; Y10S152/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A METHOD OF MAKING POLYALKYLENE ETHER URETHANE COMPOUNDS COMPRISING REACTING A LONG-CHAIN LINEAR POLYALKYLENE ETHER GLYCOL HAVING TERMINAL HYDROXYL GROUPS AND A MOLECULAR WEIGHT OF AT LEAST 600 WITH AN ORGANIC POLYISOCYANATE SELECTED FROM THE CLASS CONSISTING OF ALIPHATIC AND AROMATIC POLYISOCYANATES HAVING TWO TO THREE FUNCTIONAL ISOCYANATE GROUPS PER MOLECULE TO FORM A LINEAR THERMOPLASTIC POLYALKYLENE ETHER URETHANE, MIXING 100 PARTS OF SAID POLYALKYLENE ETHER URETHANE WITH 2 TO 15 PARTS OF A 2,6-DIMENTYLOL-3,5-DIALKYL SUBSTITUTED PHENOL RESOLE HAVING META ALIPHATIC SUBSTITUENTS WITH 2 TO 20 CARBON ATOMS, SHAPING THE MIXTURE, AND THEREAFTER HEATING THE MIXTURE TO OBTAIN AN ELASTIC VULCANIZED ARTICLE.
Claim 2
Independent Claim
102 words
A METHOD OF MAKING POLYALKYLENE ETHER URETHANE COMPOUNDS COMPRISING REACTING A LONG-CHAIN LINEAR POLYALKYLENE ETHER GLYCOL HAVING TERMINAL HYDROXYL GROUPS AND A MOLECULAR WEIGHT OF AT LEAST 600 WITH AN ORGANIC POLYISOCYANATE SELECTED FROM THE CLASS CONSISTING OF ALIPHATIC AND AROMATIC POLYISOCYANATES HAVING TWO TO THREE FUNCTIONAL ISOCYANATE GROUPS PER MOLECULE TO FORM A LINEAR THERMOPLASTIC POLYALKYLENE ETHER URETHANE, MIXING 100 PARTS OF SAID POLYALKYLENE ETHER URETHANE WITH 2 TO 15 PARTS OF A 2,6-DIMENTYLOL-3,5-DIALKYL SUBSTITUTED PHENOL RESOLE HAVING META ALIPHATIC SUBSTITUENTS WITH 2 TO 20 CARBON ATOMS, SHAPING THE MIXTURE, AND THEREAFTER HEATING THE MIXTURE TO OBTAIN AN ELASTIC VULCANIZED ARTICLE.
References Cited (Backward Citations)
DE14136C
Cited
US2732368A
Cited
GB580524A
Cited
US2803620A
Cited
US2813843A
Cited
US2850424A
Cited
US2918448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |