US3350332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rigid polyvinyl chloride blends having improved impact strength
Assignee: Monsanto Co
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Filing: 1962-10-05
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Granted: 1967-10-31
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Expires: 1982-10-05
Abstract
No abstract record available.
Inventors
- 👤 Edgar E Hardy
- 👤 Ludwig A Beer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:21
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L75/00; C08L75/04; C08L75/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A FUSED BLEND PREPARED BY INTIMATELY MIXING 60 TO 93 PARTS BY WEIGHT OF VINYL CHLORIDE POYMER CONTAINING AT LEAST 85 PERCENT BY WEIGHT OF VINYL CHLORIDE AT TEMPERATURES ABOVE THE FUSION POINT OF SAID POLYMER WITH 40-7 PARTS BY WEIGHT TOTAL OF OTHER COMPONENTS COMPRISING (1) AN ISOCYANATE-TERMINATED POLYESTER PREPOLYMER WHICH IS PREPARED BY REACTING SUBSTANTIALLY LINEAR POLYESTERS WITH AN EXCESS OF DIISOCYANATE COMPOUND HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
69 words
A FUSED BLEND PREPARED BY INTIMATELY MIXING 60 TO 93 PARTS BY WEIGHT OF VINYL CHLORIDE POYMER CONTAINING AT LEAST 85 PERCENT BY WEIGHT OF VINYL CHLORIDE AT TEMPERATURES ABOVE THE FUSION POINT OF SAID POLYMER WITH 40-7 PARTS BY WEIGHT TOTAL OF OTHER COMPONENTS COMPRISING (1) AN ISOCYANATE-TERMINATED POLYESTER PREPOLYMER WHICH IS PREPARED BY REACTING SUBSTANTIALLY LINEAR POLYESTERS WITH AN EXCESS OF DIISOCYANATE COMPOUND HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
GB638118A
Cited
FR1108785A
Cited
US2851436A
Cited
GB830226A
Cited
US2987504A
Cited
US2872430A
Cited
US3257261A
Cited
GB884153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |