US2567137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interpolymerization of styrene and frosting drying oil in presence of monocyclic alpha-terpene
Assignee: Sherwin Williams Co
•
Filing: 1945-10-22
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Granted: 1951-09-04
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Expires: 1965-10-22
Abstract
No abstract record available.
Inventors
- 👤 Wakeford Leslie Ernest
- 👤 Booth Ernest
- 👤 Buckle Richard Hartlebury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:54
CPC Classifications
C; C09; C09D; C09D125/00; C09D125/02; C09D125/04; C09D125/08; C09D125/14; C08; C08F; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/08; C08F242/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A NON-CATALYTIC PROCESS FOR THE PRODUCTION OF COMPATIBLE STYRENE-OIL INTERPOLYMERS OF A NONFROSTING CHARACTER FROM STYRENE AND UNPOLYMERIZED FROSTING DRYING OILS, WHICH COMPRISES HEATING THE STYRENE AND THE OIL IN THE PRESENCE OF A SOLVENT COMPRISING AN AMOUNT OF A MONOCYCLIC ALPHA TERPENE SUFFICIENT TO PREVENT GELATION DURING INTERPOLYMERIZATION AND TO PREVENT FROSTING OF FILMS OF THE PRODUCT ON DRYING.
Claim 2
Dependent Claim
60 words
A NON-CATALYTIC PROCESS FOR THE PRODUCTION OF COMPATIBLE STYRENE-OIL INTERPOLYMERS OF A NONFROSTING CHARACTER FROM STYRENE AND UNPOLYMERIZED FROSTING DRYING OILS, WHICH COMPRISES HEATING THE STYRENE AND THE OIL IN THE PRESENCE OF A SOLVENT COMPRISING AN AMOUNT OF A MONOCYCLIC ALPHA TERPENE SUFFICIENT TO PREVENT GELATION DURING INTERPOLYMERIZATION AND TO PREVENT FROSTING OF FILMS OF THE PRODUCT ON DRYING.
References Cited (Backward Citations)
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Cited
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Cited
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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) | 1954-09-03 | 1955-03-05 | 1955-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-03 | 1959-03-05 | 1959-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-03 | 1963-03-05 | 1963-09-04 | $7700.00 | Window Closed / Lapsed |