US3833519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizers for vinyl chloride-containing resins
Assignee: Arkema Inc
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Filing: 1972-07-10
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Granted: 1974-09-03
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Expires: 1992-07-10
Abstract
Abstract IMPROVED STABILIZER COMPOSITIONS WHICH REQUIRE LESS TIN TO IMPART A GIVEN DEGREE OF HEAT STABILIZATION TO VINYL CHLORIDE-CONTAINING POLYMERS ARE OBTAINED USING REACTION PRODUCTS OF DIORGANOTIN COMPOUNDS WITH ESTERS OF ALIPHATIC POLYHYDROXYLATED ORGANIC COMPOUNDS IN COMBINATION WITH CERTAIN BARIUM DERIVATES. UP TO 50% OF THE ORGANOTIN REACTION PRODUCT PRESENT IN A POLYMER COMPOSITION CAN BE REPLACED BY BARIUM COMPOUNDS WITHOUT A SIGNIFICANT DECREASE IN HEAT STABILIZATION.
Inventors
- 👤 A Ejk
- 👤 R Ringwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:32
CPC Classifications
C; C08; C08K; C08K5/00; C07; C07F; C07F7/00; C07F7/22; C07F7/226; C08K5/04; C08K5/09; C08K5/13; C08K5/56; 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) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |