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US3767615A
Expired / Lapsed
US
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Stabilization of halogen containing polymers
Assignee: Ashland LLC
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Filing: 1972-02-28
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Granted: 1973-10-23
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Expires: 1992-02-28
Abstract
Abstract COMPOSITIONS COMPRISING HALOGEN CONTAINING POLYMERS AND AT LEAST ONE ORGANIC COMPOUND IN AN EFFECTIVE STABILIZING AMOUNT HAVING STRUCTURAL FORMULA SELECTED FROM THE GROUP OF: (-CH2-X-CH2-)>C<(-CH2-Z-ME(-R2)(-R1)-Z-CH2-), AND (-CH2-Y-CH2-)>C<(-CH2-Z-P(-O-R)-Z-CH2-) WHEREIN ME IS A GROUP IV-A METAL; X IS O, S, OR CH2; Y IS S OR CH2; EACH Z INDIVIDUALLY IS O OR S; AND EACH R, R1, AND R2 INDIVIDUALLY IS ALKYL, ARYL, CYCLOALKYL, ARALKYL, OR ALKARYL. ALSO, THE ORGANIC COMPOUNDS AND THEIR METHOD OF PREPARATION ARE PROVIDED.
Inventors
- 👤 P Throckmorton
- 👤 Killip W Mc
- 👤 H Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:29
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/56; C08K5/0091; C08K5/57; C08K5/58
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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |