Patent US2666752A successfully refreshed from Google Patents.
US2666752A
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Stabilizer for halogen-containing polymers
Assignee: Sherwin Williams Co
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Filing: 1950-01-17
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Granted: 1954-01-19
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Expires: 1970-01-17
Abstract
No abstract record available.
Inventors
- 👤 Oliver J Grummitt
- 👤 Robert E Blank
- 👤 Herbert F Schwarz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:36
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08K5/103; C08K5/36; C08K5/37
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A COMPOSITION COMPRISING A POLYVINYL HALIDECONTAINING POLYMERIC RESIN AND AS A STABILIZER THEREFOR FROM ABOUT 0.1-10 PARTS PER 100 PARTS OF RESIN OF A MONO-ESTER OF A HIGH MOLECULAR WEIGHT FATTY ACID CONTAINING FROM 18 TO 24 CARBON ATOMS AND A POLYDRIC ALCOHOL, IN WHICH ESTER FROM 25% TO BELOW 75% OF THE AVAILABLE FREE HYDROXYL GROUPS HAVE BEEN ACYLATED WITH AN ALIPHATIC ACYL COMPOUND HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
69 words
A COMPOSITION COMPRISING A POLYVINYL HALIDECONTAINING POLYMERIC RESIN AND AS A STABILIZER THEREFOR FROM ABOUT 0.1-10 PARTS PER 100 PARTS OF RESIN OF A MONO-ESTER OF A HIGH MOLECULAR WEIGHT FATTY ACID CONTAINING FROM 18 TO 24 CARBON ATOMS AND A POLYDRIC ALCOHOL, IN WHICH ESTER FROM 25% TO BELOW 75% OF THE AVAILABLE FREE HYDROXYL GROUPS HAVE BEEN ACYLATED WITH AN ALIPHATIC ACYL COMPOUND HAVING THE GENERAL FORMULA:
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) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |