US2555062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl chloride polymers plasticized with plyesters
Assignee: Imperial Chemical Industries Ltd
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Filing: 1948-03-24
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Granted: 1951-05-29
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Expires: 1968-03-24
Abstract
No abstract record available.
Inventors
- 👤 Kathleen W Small
- 👤 Percy A Small
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:14
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L67/00; C08L67/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A PLASTICIZED COMPOSITION COMPRISING A POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF VINYL CHLORIDE AND INTERPOLYMERS OF VINYL CHLORIDE WITH UP TO 25% OF ITS WEIGHT OF ANOTHER ETHYLENICALLY UNSATURATED COMPOUND AND UP TO 150% BY WEIGHT OF SAID POLYMERIC MATERIAL OF A PLASTICIZER COMPRISING A POLYESTER HAVING A VISCOSITY AT 109* C. OF AT LEAST 15 POISES AND DERIVED FROM ALIPHATIC GLYCOLS CONTAINING AT LEAST TWO CARBON ATOMS PER MOLECULE AND ORAGANIC DICARBOXYLIC ACIDS, AT LEAST 50% BY WEIGHT OF SAID GLYCOLS AND SAID ACIDS CONSISTING OF COMPOUNDS HAVING STRAIGHT CHAIN MOLECULES AND THEIR FUNCTIONAL GROUPS, ATTACHED AT THE ENDS OF THE CHAIN AND AT LEAST 90% BY WEIGHT OF SAID ACIDS BEING ALIPHATIC, THE RATIO OF THE TOTAL NUMBER OF CARBON ATOMS TO CARBOXYL GROUPS IN THE POLYESTER MOLECULES BEING AT LEAST 4.5 TO 1.
Claim 2
Dependent Claim
140 words
A PLASTICIZED COMPOSITION COMPRISING A POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF POLYMERS OF VINYL CHLORIDE AND INTERPOLYMERS OF VINYL CHLORIDE WITH UP TO 25% OF ITS WEIGHT OF ANOTHER ETHYLENICALLY UNSATURATED COMPOUND AND UP TO 150% BY WEIGHT OF SAID POLYMERIC MATERIAL OF A PLASTICIZER COMPRISING A POLYESTER HAVING A VISCOSITY AT 109* C. OF AT LEAST 15 POISES AND DERIVED FROM ALIPHATIC GLYCOLS CONTAINING AT LEAST TWO CARBON ATOMS PER MOLECULE AND ORAGANIC DICARBOXYLIC ACIDS, AT LEAST 50% BY WEIGHT OF SAID GLYCOLS AND SAID ACIDS CONSISTING OF COMPOUNDS HAVING STRAIGHT CHAIN MOLECULES AND THEIR FUNCTIONAL GROUPS, ATTACHED AT THE ENDS OF THE CHAIN AND AT LEAST 90% BY WEIGHT OF SAID ACIDS BEING ALIPHATIC, THE RATIO OF THE TOTAL NUMBER OF CARBON ATOMS TO CARBOXYL GROUPS IN THE POLYESTER MOLECULES BEING AT LEAST 4.5 TO 1.
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) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |