US3050487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reducing stickiness during the milling of a rubbery diene polymer by addition of a hydrocarbon acid ester of a phosphoric acid
Assignee: Phillips Petroleum Co
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Filing: 1958-03-07
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Granted: 1962-08-21
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Expires: 1978-03-07
Abstract
No abstract record available.
Inventors
- 👤 Paul W Solomon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:28
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/521; Y; Y10; Y10S; Y10S526/00; Y10S526/938
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PROCESS OF REDUCING STICKING DURING MILLING WHICH COMPRISES MILLING A RUBBERY DIENE POLYMER PREPARED BY POLYMERIZING A MAJOR PORTION OF A CONJUGATED DIENE CONTAINING 4 TO 8 CARBOLN ATOMS AND A MINOR PORTION OF AN ACID CONTAINING NOT MORE THAN 12 CARBON ATOMS SELECTED FROM THE GROUP CONSISTING OF ETHYLENICALLY UNSATURATED COPOLYMERIZABLE MONOCARBOXYLIC AND DICARBOXCYLIC ACIDS, SAID MILLING BEING CARRIED OUT IN TEH PRESENCE OF A SMALL AMOUNT OF A HYDROCARBON ACID ESTER OF A PHOSPHORIC ACID CONTAINING 1 TO 4 PENTAVALENT PHOSPHORUS ATOMS.
Claim 2
Dependent Claim
85 words
A PROCESS OF REDUCING STICKING DURING MILLING WHICH COMPRISES MILLING A RUBBERY DIENE POLYMER PREPARED BY POLYMERIZING A MAJOR PORTION OF A CONJUGATED DIENE CONTAINING 4 TO 8 CARBOLN ATOMS AND A MINOR PORTION OF AN ACID CONTAINING NOT MORE THAN 12 CARBON ATOMS SELECTED FROM THE GROUP CONSISTING OF ETHYLENICALLY UNSATURATED COPOLYMERIZABLE MONOCARBOXYLIC AND DICARBOXCYLIC ACIDS, SAID MILLING BEING CARRIED OUT IN TEH PRESENCE OF A SMALL AMOUNT OF A HYDROCARBON ACID ESTER OF A PHOSPHORIC ACID CONTAINING 1 TO 4 PENTAVALENT PHOSPHORUS ATOMS.
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) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |