US3274142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber-mercaptan blends and method for their preparation
Assignee: Phillips Petroleum Co
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Filing: 1962-03-01
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Granted: 1966-09-20
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Expires: 1982-03-01
Abstract
No abstract record available.
Inventors
- 👤 Paul F Warner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:17
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
AS A NEW COMPOSITION OF MATTER, A BLEND CONSISTING ESSENTIALLY OF ABOUT 95-60 WEIGHT PARTS OF A LIQUID DITHIOL WHICH HAS THE GENERAL FORMULA HS-R-SH WHEREIN R IS AN ORGANIC RADICAL CONTAINING FROM 1-20 CARBON ATOMS, AND ABOUT 5-40 WEIGHT PARTS OF A NON-HALOGENATED RUBBERY POLYMER SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF CONJUGATED DIENES, AND COPOLYMERS OF CONJUGATED DIENES WITH MONOMERS HAVING AN ETHYLENIC LINKAGE COPOLYMERIZABLE THEREWITH.
Claim 2
Dependent Claim
69 words
AS A NEW COMPOSITION OF MATTER, A BLEND CONSISTING ESSENTIALLY OF ABOUT 95-60 WEIGHT PARTS OF A LIQUID DITHIOL WHICH HAS THE GENERAL FORMULA HS-R-SH WHEREIN R IS AN ORGANIC RADICAL CONTAINING FROM 1-20 CARBON ATOMS, AND ABOUT 5-40 WEIGHT PARTS OF A NON-HALOGENATED RUBBERY POLYMER SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF CONJUGATED DIENES, AND COPOLYMERS OF CONJUGATED DIENES WITH MONOMERS HAVING AN ETHYLENIC LINKAGE COPOLYMERIZABLE THEREWITH.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |