Patent US3156744A successfully refreshed from Google Patents.
US3156744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High impact strength blends of vinylchloride resins with ethylene-carbon monoxide copolymers
Assignee: Union Carbide Corp
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Filing: 1960-09-09
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Granted: 1964-11-10
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Expires: 1980-09-09
Abstract
No abstract record available.
Inventors
- 👤 Dennis H Mullins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:14
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L73/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A MONOGENOUS RIGID, OPAQUE COMPOSITION COMPRISING A VINYL CHLORIDE RESIN SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF VINYL CHLORIDE AND INTERPOLYMERS OF VINYL CHLORIDE WITH AT LEAST ONE OTHER ETHYLENICALLY UNSATURATED COPOLYMERIZABLE MONOMER, SAID INTERPOLYMER CONTAINING AT LEAST ABOUT 80 PERCENT BY WEIGHT OF POLYMERIZED VINYL CHLORIDE, AND, BLENDED THEREWITH, FROM ABOUT 1 PERCENT TO ABOUT 30 PERCENT BY WEIGHT BASED UPON THE TOTAL WEIGHT OF POLYMER OF A SOLID ETHYLENE-CARBON MONOXIDE COPOLYMER CONTAINING FROM ABOUT 1 PERCENT TO ABOUT 15 PERCENT BY WEIGHT OF THE CARBON MONOXIDE COMPONENT AND HAVING A MELT INDEX OF FROM ABOUT 0.01 TO ABOUT 100 AT A TEMPERATURE OF 190*C. AND UNDER A PRESSURE OF 43.1 POUNDS PER SQUARE INCH.
Claim 2
Dependent Claim
117 words
A MONOGENOUS RIGID, OPAQUE COMPOSITION COMPRISING A VINYL CHLORIDE RESIN SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF VINYL CHLORIDE AND INTERPOLYMERS OF VINYL CHLORIDE WITH AT LEAST ONE OTHER ETHYLENICALLY UNSATURATED COPOLYMERIZABLE MONOMER, SAID INTERPOLYMER CONTAINING AT LEAST ABOUT 80 PERCENT BY WEIGHT OF POLYMERIZED VINYL CHLORIDE, AND, BLENDED THEREWITH, FROM ABOUT 1 PERCENT TO ABOUT 30 PERCENT BY WEIGHT BASED UPON THE TOTAL WEIGHT OF POLYMER OF A SOLID ETHYLENE-CARBON MONOXIDE COPOLYMER CONTAINING FROM ABOUT 1 PERCENT TO ABOUT 15 PERCENT BY WEIGHT OF THE CARBON MONOXIDE COMPONENT AND HAVING A MELT INDEX OF FROM ABOUT 0.01 TO ABOUT 100 AT A TEMPERATURE OF 190*C. AND UNDER A PRESSURE OF 43.1 POUNDS PER SQUARE INCH.
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) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |