US3553155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl chloride polymers plasticized with mixed phenyl alkylphenyl phosphates
Assignee: Individual
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Filing: 1969-01-06
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Granted: 1971-01-05
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Expires: 1989-01-06
Abstract
Abstract PLASTICISED FLEXIBLE RESIN COMPOSITIONS HAVING IMPROVED COLD FLEX CHARACTERISTICS CONSISTING ESSENTIALLY OF POLYVINYL CHLORIDE OR A COPOLYMER OF VINYL CHLORIDE HAVING AT LEAST 80% OF THE COPOLYMER FORMED FROM THE VINYL CHLORIDE. THE PLASTICISER IS A LIQUID MIXED PHENYL ALKYLPHENYL PHOSPHATE IN AN AMOUNT OF FROM 30-150 PARTS BY WEIGHT PER 100 PARTS BY WEIGHT OF THE POLYMER. THE SAID PHOSPHATE IS REPRESENTED BY THE AVERAGE GENERAL FORMULA (RO)3PO. FROM 20-85 MOLE PERCENT OF THE "R" GROUPS ARE SECONDARY ALKYLPHENYL GROUPS. SAID SECONDARY ALKYL GROUPS HAVE FROM 3-4 CARBON ATOMS. THE REMAINING "R" GROUPS ARE PHENYL GROUPS.
Inventors
- 👤 Kenneth Malcolm Garrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:12
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/521; C08K5/523
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |