US2557089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions comprising a polymerized vinyl chloride resin plasticized with monoalkyl diaryl phosphate esters
Assignee: Monsanto Chemicals Ltd
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Filing: 1948-01-02
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Granted: 1951-06-19
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Expires: 1968-01-02
Abstract
No abstract record available.
Inventors
- 👤 Harry R Gamrath
- 👤 Craver John Kenneth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:04
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/521; C08K5/523
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A PLASITCIZED ELASTOMERIC POLYVINYL CHLORIDE COMPOSITION COMPRISING (1) 100 PARTS BY WEIGHT OF A POLYVINYL CHLORIDE RESIN SELECTED FROM THE GROUP CONSISTING OF (A) POLYVINYL CHLORIDE AND (B) COPOLYMERS OF PREDOMINANTLY VINYL CHLORIDE AND UNSATURATED MATERIALS COPOLYMERIZABLE THEREWITH AND (2) 25 TO 150 PARTS BY WEIGHT OF A MONOALKYL DIARYL PHOSPHATE ESTER SELECTED FROM THE GROUP CONSISTING OF MONOALKYL DIPHENYL PHOSPHATE ESTERS AND MONOALKYL DICRESYL PHOSPHATE ESTERS WHEREIN THE SAID MONOALKYL GROUPS CONTAIN AT LEAST 6 AND NOT MORE THAN 12 CARBON ATOMS.
Claim 2
Dependent Claim
83 words
A PLASITCIZED ELASTOMERIC POLYVINYL CHLORIDE COMPOSITION COMPRISING (1) 100 PARTS BY WEIGHT OF A POLYVINYL CHLORIDE RESIN SELECTED FROM THE GROUP CONSISTING OF (A) POLYVINYL CHLORIDE AND (B) COPOLYMERS OF PREDOMINANTLY VINYL CHLORIDE AND UNSATURATED MATERIALS COPOLYMERIZABLE THEREWITH AND (2) 25 TO 150 PARTS BY WEIGHT OF A MONOALKYL DIARYL PHOSPHATE ESTER SELECTED FROM THE GROUP CONSISTING OF MONOALKYL DIPHENYL PHOSPHATE ESTERS AND MONOALKYL DICRESYL PHOSPHATE ESTERS WHEREIN THE SAID MONOALKYL GROUPS CONTAIN AT LEAST 6 AND NOT MORE THAN 12 CARBON ATOMS.
References Cited (Backward Citations)
US2168587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |