US3036045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer compositions and improved process for vulcanization of rubbery hydroxy-contaiing polymers with polyisocyanates
Assignee: Phillips Petroleum Co
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Filing: 1955-07-05
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Granted: 1962-05-22
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Expires: 1975-07-05
Abstract
No abstract record available.
Inventors
- 👤 James N Short
- 👤 Paul W Solomon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:28
CPC Classifications
C; C08; C08C; C08C19/00; C08C19/30; C08C19/34; C08C19/38; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/69
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
IN A METHOD FOR PRODUCING S SYNTHETIC COPOLYMER, WHEREIN SAID COPOLYMER IS PREPARED BY POLYMERIZING FROM 50 TO 98 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF MONOMERIC MATERIAL OF 1,3-BUTADIENE AND 2-PHENYL-4-HYDROXY BUTENE, THE LATTER MONOMER BEING EMPLOYED IN AN AMOUNT SUFFICIENT TO YIELD A COPOLYMER CONTAINING AT LEAST 0.009 MOL OF HYDROXY GROUP PER 100 GRAMS OF COPOLYMER, AND SAID COPOLYMER IS SUBJECTED TO MILLING AND SUBSEQUENT VULCANIZATION, SAID COPOLYMER BEING REACTIVE WITH A POLYISOCYANATE, THE IMPROVEMENT WHICH COMPRISES ADDING TO SAID COMPOSITION DURING SAID MILLING A REACTION PRODUCT OF M-TOLYLENE DIISOCYANATE WITH AT LEAST A STOICHIOMETRIC AMOUNT OF DIPHENYLAMINE PER MOL OF SAID DIISOCYANATE, SAID REACTION PRODUCT BEING EMPLOYED IN AN AMOUNT IN THE RANGE OF 0.13 TO 5 MOLS PER MOL OF HYDROXY GROUP IN SAID COPOLYMER.
Claim 2
Dependent Claim
132 words
IN A METHOD FOR PRODUCING S SYNTHETIC COPOLYMER, WHEREIN SAID COPOLYMER IS PREPARED BY POLYMERIZING FROM 50 TO 98 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF MONOMERIC MATERIAL OF 1,3-BUTADIENE AND 2-PHENYL-4-HYDROXY BUTENE, THE LATTER MONOMER BEING EMPLOYED IN AN AMOUNT SUFFICIENT TO YIELD A COPOLYMER CONTAINING AT LEAST 0.009 MOL OF HYDROXY GROUP PER 100 GRAMS OF COPOLYMER, AND SAID COPOLYMER IS SUBJECTED TO MILLING AND SUBSEQUENT VULCANIZATION, SAID COPOLYMER BEING REACTIVE WITH A POLYISOCYANATE, THE IMPROVEMENT WHICH COMPRISES ADDING TO SAID COMPOSITION DURING SAID MILLING A REACTION PRODUCT OF M-TOLYLENE DIISOCYANATE WITH AT LEAST A STOICHIOMETRIC AMOUNT OF DIPHENYLAMINE PER MOL OF SAID DIISOCYANATE, SAID REACTION PRODUCT BEING EMPLOYED IN AN AMOUNT IN THE RANGE OF 0.13 TO 5 MOLS PER MOL OF HYDROXY GROUP IN SAID COPOLYMER.
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) | 1965-05-21 | 1965-11-20 | 1966-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-21 | 1969-11-20 | 1970-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-21 | 1973-11-20 | 1974-05-22 | $7700.00 | Window Closed / Lapsed |