US3733288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline earth metal phenoxide esters and polyvinyl chloride resin compositions containing the same as stabilizers
Assignee: ARGUS CHEMICAL CORP US
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Filing: 1970-07-30
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Granted: 1973-05-15
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Expires: 1990-07-30
Abstract
Abstract ALKALINE EARTH METAL PHENOXIDE ESTERS ARE PREPARED HAVING THE FOLLOWING FORMULA: (R2,R3-PHENYL)-X-CO-A-COO-ME-R1 WHEREIN R1 IS AN ORGANIC RADICAL LINKED TO THE ALKALINE EARTH METAL ATOM ME THROUGH OXYGEN OR SULFUR, OR A A CARBOXYLIC OR THIOCARBOXYLIC ACID GROUP, A IS A BIVALENT LINKING GROUP, X IS OBYGEN OR SULFUR, AND R2 AND R3 ARE ORGANIC RADICALS OR HYDROGEN. POLYVINYL CHLORIDE RESIN COMPOSITIONS HAVE IMPROVED RESISTANCE TO WEATHERING, AND A REDUCED TENDENCY TO PLATE OUT, AND TO DEVELOP BLOOM, ARE ALSO PROVIDED, CONTAINING THESE COMPOUNDS AS STABILIZERS, ALONE OR WITH OTHER POLYVINYL CHLORIDE RESIN STABILIZERS.
Inventors
- 👤 M Minagawa
- 👤 T Sekiguchi
- 👤 N Kubota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:40
CPC Classifications
C; C09; C09K; C09K15/00; C09K15/04; C09K15/32; C09K15/326; C07; C07C; C07C327/00; C07F; C07F3/00; C07F3/003; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/11
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-14 | 1976-11-13 | 1977-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-14 | 1980-11-13 | 1981-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-14 | 1984-11-13 | 1985-05-15 | $7700.00 | Window Closed / Lapsed |