Patent US2873266A successfully refreshed from Google Patents.
US2873266A
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Polymeric materials and method of producing same
Assignee: Union Carbide Corp
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Filing: 1955-12-27
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Granted: 1959-02-10
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Expires: 1975-12-27
Abstract
No abstract record available.
Inventors
- 👤 Urs Subbaraju Venkataramaraj
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:16
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/77; C08G18/771; C08G18/28; C08G18/30; C08G18/32; C08G18/3203; C08G18/73; C08G18/74; C08G18/75; C08G18/751
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A METHOD OF PRODUCING THERMOPLASTIC POLYMERIC MATERIALS SOLUBLE IN PHENOL, CRESOL, DIMETHYL FORMAMIDE, PYRIDINE, CYCLOHENXANOL, AND INSOLUBLE IN ACETONE, METHANOL. AND BENZENE, AND BEING SUITABLE FOR THE PRODUCTION OF SELF-PLASTICIZED FILMS WHICH COMPRISES REACTING A GLYCOL MIXTURE CONTAINING A PRIMARY ALIPHATIC GLOYCOL HAVING THE FORMULA HO(CH2)NOH WHEREIN N IS AN INTEGER FROM 4 TO 10 IN A MOLE AMOUNT OF 90% TO 80% AND A SECONDARY ALIPHATIC GLYCOL HAVING THE FORMULA
Claim 2
Independent Claim
71 words
A METHOD OF PRODUCING THERMOPLASTIC POLYMERIC MATERIALS SOLUBLE IN PHENOL, CRESOL, DIMETHYL FORMAMIDE, PYRIDINE, CYCLOHENXANOL, AND INSOLUBLE IN ACETONE, METHANOL. AND BENZENE, AND BEING SUITABLE FOR THE PRODUCTION OF SELF-PLASTICIZED FILMS WHICH COMPRISES REACTING A GLYCOL MIXTURE CONTAINING A PRIMARY ALIPHATIC GLOYCOL HAVING THE FORMULA HO(CH2)NOH WHEREIN N IS AN INTEGER FROM 4 TO 10 IN A MOLE AMOUNT OF 90% TO 80% AND A SECONDARY ALIPHATIC GLYCOL HAVING THE FORMULA
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) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |