Patent US3183221A successfully refreshed from Google Patents.
US3183221A
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Rubbery polymer of a heavy petroleum hydrocarbon, process of making same, and blendsthereof with a rubbery diene polymer
Assignee: Phillips Petroleum Co
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Filing: 1960-12-30
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Granted: 1965-05-11
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Expires: 1980-12-30
Abstract
No abstract record available.
Inventors
- 👤 William N Axe
- 👤 James T Gragson
- 👤 Schiff Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:41
CPC Classifications
C; C08; C08G; C08G61/00; C08G61/02; C08G61/10; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
114 words
A METHOD FOR PRODUCING A RUBBERY POLYMER PRODUCT WHICH COMPRISES HEATING AT A REACTING TEMPERATURE A HEAVY PETROLEUM HYDROCARBON ESSENTIALLY FREE OF OLEFINIC UNSATURATION AND CONTAINING NAPHTHENIC AND AROMATIC CONSTITUENTS AND HAVING AN AVERAGE MMOLECULAR WEIGHT OF AT LEAST ABOUT 600 AND NOT CONTAINING ANY SUBSTANTIAL AMOUNT OF FRACTIONS HAVING AN AVERAGE MOLECULAR WEIGHT BELOW ABOUT 400, WITH AN ORGANIC PEROXIDE SELECTED TO CAUSE A REACTION BETWEEN SAID HYDROCARBON AND PEROXIDE TO FORM A RUBBERY POLYMER, SAID PEROXIDE BEING USED IN A RATIO OF ABOUT ONE-TENTH MOL TO ABOUT THREE MOLS FOR EACH MOL OF HYDROCARBON TREATED, AND THEN RECOVERING SAID MOL OF HYDROCARBON TREATED, AND THEN RECOVERING SAID POLYMER FROM THE REACTION MIXTURE.
Claim 2
Independent Claim
114 words
A METHOD FOR PRODUCING A RUBBERY POLYMER PRODUCT WHICH COMPRISES HEATING AT A REACTING TEMPERATURE A HEAVY PETROLEUM HYDROCARBON ESSENTIALLY FREE OF OLEFINIC UNSATURATION AND CONTAINING NAPHTHENIC AND AROMATIC CONSTITUENTS AND HAVING AN AVERAGE MMOLECULAR WEIGHT OF AT LEAST ABOUT 600 AND NOT CONTAINING ANY SUBSTANTIAL AMOUNT OF FRACTIONS HAVING AN AVERAGE MOLECULAR WEIGHT BELOW ABOUT 400, WITH AN ORGANIC PEROXIDE SELECTED TO CAUSE A REACTION BETWEEN SAID HYDROCARBON AND PEROXIDE TO FORM A RUBBERY POLYMER, SAID PEROXIDE BEING USED IN A RATIO OF ABOUT ONE-TENTH MOL TO ABOUT THREE MOLS FOR EACH MOL OF HYDROCARBON TREATED, AND THEN RECOVERING SAID MOL OF HYDROCARBON TREATED, AND THEN RECOVERING SAID POLYMER FROM THE REACTION MIXTURE.
Claim 3
Dependent Claim
14 words
AN EXTENDED CONJUGATED DIENE RUBBER CONTAINING THE RUBBERY POLYMER PRODUCED ACCORDING TO CLAIM 1.
References Cited (Backward Citations)
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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) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |