US2568217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making camphene and vinyl cyclohexene resin
Assignee: Pennsylvania Industrial Chemical Corp
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Filing: 1948-08-23
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Granted: 1951-09-18
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Expires: 1968-08-23
Abstract
No abstract record available.
Inventors
- 👤 Samuel G Burroughs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:53
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
THE METHOD OF PRODUCING HARD RESIN POLYMERS BY BRINGING A MIXTURE OF 1-VINYL CYCLOHEXENE-3 (CYCLIC DIMER OF BUTADIENE) AND CAMPHENE IN A PROPORTION OF VINYL CYCLOHEXENE EQUAL TO FROM 10% TO 50% THE WEIGHT OF THE BLEND INTO REACTIVE CONTACT WITH AN ACID-REACTING METAL HALIDE POLYMERIZATION CATALYST IN THE PRESENCE OF AN INERT SOLVENT DILUENT FOR THE POLYMERS OF THE SAID VINYL CYCLOHEXENE AND CAMPHENE, TO FORM HARD RESIN POLYMERS OF VINYL CYCLOHEXENE AND CAMPHENE IN SOLUTION, AND RECOVERING THE RESIN POLYMERS SO FORMED.
Claim 2
Independent Claim
84 words
THE METHOD OF PRODUCING HARD RESIN POLYMERS BY BRINGING A MIXTURE OF 1-VINYL CYCLOHEXENE-3 (CYCLIC DIMER OF BUTADIENE) AND CAMPHENE IN A PROPORTION OF VINYL CYCLOHEXENE EQUAL TO FROM 10% TO 50% THE WEIGHT OF THE BLEND INTO REACTIVE CONTACT WITH AN ACID-REACTING METAL HALIDE POLYMERIZATION CATALYST IN THE PRESENCE OF AN INERT SOLVENT DILUENT FOR THE POLYMERS OF THE SAID VINYL CYCLOHEXENE AND CAMPHENE, TO FORM HARD RESIN POLYMERS OF VINYL CYCLOHEXENE AND CAMPHENE IN SOLUTION, AND RECOVERING THE RESIN POLYMERS SO FORMED.
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) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |