US2616865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl chloride and vinyl acetate copolymer plasticized with mixed esters of tetrahydrofurfuryl alcohol
Assignee: EF Drew and Co Inc
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Filing: 1949-05-07
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Granted: 1952-11-04
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Expires: 1969-05-07
Abstract
No abstract record available.
Inventors
- 👤 Emery I Valko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:50
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/09; C08J3/091; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1535; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; D; D01; D01F; D01F1/00; D01F1/02; D01F1/10; D01F6/00; D01F6/28; D01F6/32; C08J2327/00; C08J2327/02; C08J2327/04; C08J2327/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A SYNTHETIC RESINOUS COMPOSITION CONSISTING ESSENTIALLY OF A POLYVINYL CHLORIDE-ACETATE COPOLYMER RESIN HAVING INCORPORATED THEREIN TO 100 PARTS OF RESIN FROM 30 TO 75 PARTS OF A PLASTICIZER WHICH IS THE TETRAHYDROFURFURYL ALCOHOL ESTER OF A MIXTURE OF 30-70% OF ROSIN AND 70-30% OF FATTY ACIDS HAVING 10-22 CARBON ATOMS, SAID PLASTICIZER HAVING AN ACID NUMBER LESS THAN 10, SAID PLASTICIZER CONTAINING ABOUT 4 PARTS OF THE TRIETHYLENE GLYCOL ESTER OF A MIXTURE OF CAPRIC, CAPROIC AND CAPRYLIC ACIDS.
Claim 2
Dependent Claim
79 words
A SYNTHETIC RESINOUS COMPOSITION CONSISTING ESSENTIALLY OF A POLYVINYL CHLORIDE-ACETATE COPOLYMER RESIN HAVING INCORPORATED THEREIN TO 100 PARTS OF RESIN FROM 30 TO 75 PARTS OF A PLASTICIZER WHICH IS THE TETRAHYDROFURFURYL ALCOHOL ESTER OF A MIXTURE OF 30-70% OF ROSIN AND 70-30% OF FATTY ACIDS HAVING 10-22 CARBON ATOMS, SAID PLASTICIZER HAVING AN ACID NUMBER LESS THAN 10, SAID PLASTICIZER CONTAINING ABOUT 4 PARTS OF THE TRIETHYLENE GLYCOL ESTER OF A MIXTURE OF CAPRIC, CAPROIC AND CAPRYLIC ACIDS.
References Cited (Backward Citations)
US2089375A
Cited
US2339387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |