US3240844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diene elastomers cured with mercaptoterminated liquid diene polymer
Assignee: Phillips Petroleum Co
•
Filing: 1962-03-12
•
Granted: 1966-03-15
•
Expires: 1982-03-12
Abstract
No abstract record available.
Inventors
- 👤 Jerry T Gruver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:31
CPC Classifications
C; C08; C08L; C08L21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A CURED ELASTOMERIC COMPOSITION WHICH COMPRISES, PRIOR TO VULCANIZING, (1) A SOLID VULCANIZABLE ELASTOMER CONTAINING AT LEAST 0.5 PERCENT VINYL UNSATURATION SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF CONJUGATED DIENES HAVING FROM 4 TO 12 CARBON ATOMS PER MOLECULE AND COPOLYMERS OF SAID CONJUGATED DIENES WITH A COPOLYMERIZABLE MONOMER CONTAINING A CH2=C<GROUP, (2) A FREE RADICAL GENERATING COMPOUND SELECTED FROM THE GROUP CONSISTING OF PEROXIDES, HYDROPEROXIDES, PERACIDS, PER ESTERS AZO COMPOUNDS AND COMBINATIONS THEREOF WITH INORGANIC COMPLEX FROMERS PRESENT IN AN AMOUNT IN THE RANGE BETWEEN 0.1 TO 2.0 PARTS PER 100 PARTS BY WEIGHT OF ELASTOMER, AND (3) A MERCAPTO-TERMINATED LIQUID POLYMER OF A CONJUGATED DIENE HAVING FROM 4 TO 12 KCARBON ATOMS PER MOLECULE PRESENT IN AN AMOUNT IN THE RANGE BETWEEN 0.02 TO ABOUT 0.6 PART BY WEIGHT OF THE COMBINED MERCAPTAN GROUPS PER 100 PARTS OF SAID ELASTOMER.
Claim 2
Dependent Claim
143 words
A CURED ELASTOMERIC COMPOSITION WHICH COMPRISES, PRIOR TO VULCANIZING, (1) A SOLID VULCANIZABLE ELASTOMER CONTAINING AT LEAST 0.5 PERCENT VINYL UNSATURATION SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF CONJUGATED DIENES HAVING FROM 4 TO 12 CARBON ATOMS PER MOLECULE AND COPOLYMERS OF SAID CONJUGATED DIENES WITH A COPOLYMERIZABLE MONOMER CONTAINING A CH2=C<GROUP, (2) A FREE RADICAL GENERATING COMPOUND SELECTED FROM THE GROUP CONSISTING OF PEROXIDES, HYDROPEROXIDES, PERACIDS, PER ESTERS AZO COMPOUNDS AND COMBINATIONS THEREOF WITH INORGANIC COMPLEX FROMERS PRESENT IN AN AMOUNT IN THE RANGE BETWEEN 0.1 TO 2.0 PARTS PER 100 PARTS BY WEIGHT OF ELASTOMER, AND (3) A MERCAPTO-TERMINATED LIQUID POLYMER OF A CONJUGATED DIENE HAVING FROM 4 TO 12 KCARBON ATOMS PER MOLECULE PRESENT IN AN AMOUNT IN THE RANGE BETWEEN 0.02 TO ABOUT 0.6 PART BY WEIGHT OF THE COMBINED MERCAPTAN GROUPS PER 100 PARTS OF SAID ELASTOMER.
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |