US3350333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Free-flowing particulate polyvinyl chloride blends
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
- 👤 Ludwig A Beer
- 👤 Edgar E Hardy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:03
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
82 words
A FREE-FLOWING PARTICULATE BLEND PREPARED BY INTIMATELY MIXING 60 TO 93 PARTS BY WEIGHT OF A INYL CHLORIDE POLYMER HAVING A POROSITY GREATER THAN ABOUT 0.1 CC. PER GRAM AND CONTAINING AT LEAST 85 PERCENT BY WEIGHT OF VINYL CHLORIDE AT TEMPERATURES BELOW THE FUSION POINT OF SAID POLYMER WITH 40-7 PARTS BY WEIGHT TOTAL OF OTHER COMPONENTS COMPRISING (U) 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
82 words
A FREE-FLOWING PARTICULATE BLEND PREPARED BY INTIMATELY MIXING 60 TO 93 PARTS BY WEIGHT OF A INYL CHLORIDE POLYMER HAVING A POROSITY GREATER THAN ABOUT 0.1 CC. PER GRAM AND CONTAINING AT LEAST 85 PERCENT BY WEIGHT OF VINYL CHLORIDE AT TEMPERATURES BELOW THE FUSION POINT OF SAID POLYMER WITH 40-7 PARTS BY WEIGHT TOTAL OF OTHER COMPONENTS COMPRISING (U) 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 |