Patent US2602071A successfully refreshed from Google Patents.
US2602071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymerization of vinyl monomers with fatty oils, fatty acids, resins and the like
Assignee: GEO D WETHERILL VARNISH CO Inc
•
Filing: 1949-03-23
•
Granted: 1952-07-01
•
Expires: 1969-03-23
Abstract
No abstract record available.
Inventors
- 👤 Edward C Haines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:44
CPC Classifications
C; C08; C08F; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/08; C08F242/00; C09; C09D; C09D125/00; C09D125/02; C09D125/04; C09D125/08; C09D125/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
THE METHOD OF PRODUCING A COPOLYMER OF STYRENE AND A MONOMER SELECTED FROM THE GROUP CONSISTING OF CHINA-WOOD OIL, OITICICA OIL, TAIL OIL AND ROSIN WHICH COMPRISES THE STEPS OF CONTINUOUSLY ADDING TO A MASS OF THE COPOLYMER MAINTAINED AT A TEMPERATURE SUBSTANTIALLY ABOVE ITS TEMPERATURE OF SOLIDIFICATION, A MIXTURE CONSISTING OF STYRENE AND SAID MONOMER IN PROPORTIONS SUCH AS TO MAINTAIN IN THE MASS A SUBSTANTIALLY CONTANT RATIO BETWEEN THE STYRENE, SAID MONOMER AND THE COPOLYMER, THAT INGREDIENT OF THE MIXTURE ENTERING LESS READILY THAN THE OTHER INTO A COPOLYMERIZATION REACTION WITH SUCH OTHER BEING PRESENT IN THE MASS IN RELATION TO SUCH OTHER IN PROPORTION LARGER THAN THE PROPORTION THEREOF ENTERING INTO THE REACTION, CONTINUOUSLY WITHDRAWING FROM THE MASS A VOLUME OF FLUID SUBSTANTIALLY EQUIVALENT TO THE VOLUME OF SAID MIXTURE BEING ADDED THERETO AND CONSISTING SUBSTANTAILLY OF THE COPOLYMER WITH NOT IN EXCESS OF 10% OF UNPOLYMERIZED STYRENE AND SAID MONMER.
Claim 2
Independent Claim
154 words
THE METHOD OF PRODUCING A COPOLYMER OF STYRENE AND A MONOMER SELECTED FROM THE GROUP CONSISTING OF CHINA-WOOD OIL, OITICICA OIL, TAIL OIL AND ROSIN WHICH COMPRISES THE STEPS OF CONTINUOUSLY ADDING TO A MASS OF THE COPOLYMER MAINTAINED AT A TEMPERATURE SUBSTANTIALLY ABOVE ITS TEMPERATURE OF SOLIDIFICATION, A MIXTURE CONSISTING OF STYRENE AND SAID MONOMER IN PROPORTIONS SUCH AS TO MAINTAIN IN THE MASS A SUBSTANTIALLY CONTANT RATIO BETWEEN THE STYRENE, SAID MONOMER AND THE COPOLYMER, THAT INGREDIENT OF THE MIXTURE ENTERING LESS READILY THAN THE OTHER INTO A COPOLYMERIZATION REACTION WITH SUCH OTHER BEING PRESENT IN THE MASS IN RELATION TO SUCH OTHER IN PROPORTION LARGER THAN THE PROPORTION THEREOF ENTERING INTO THE REACTION, CONTINUOUSLY WITHDRAWING FROM THE MASS A VOLUME OF FLUID SUBSTANTIALLY EQUIVALENT TO THE VOLUME OF SAID MIXTURE BEING ADDED THERETO AND CONSISTING SUBSTANTAILLY OF THE COPOLYMER WITH NOT IN EXCESS OF 10% OF UNPOLYMERIZED STYRENE AND SAID MONMER.
References Cited (Backward Citations)
US1975959A
Cited
US2363951A
Cited
GB573835A
Cited
US2396698A
Cited
US2468748A
Cited
US2451435A
Cited
US2496384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |