US3682857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions containing vinyl chloride polymers
Assignee: Imperial Chemical Industries Ltd
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Filing: 1969-04-10
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Granted: 1972-08-08
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Expires: 1989-04-10
Abstract
Abstract BLENDS OF VINYL CHLORIDE POLYMERS AND OTHER POLYMERS ARE PREPARED BY COAGULATING A LATEX OF THE OTHER POLYMER IN THE PRESENCE OF A VINYL CHLORIDE POLYMER SLURRY. AN ORGANIC LIQUID, PARTICULARLY VINYL CHLORIDE, IS PRESENT BEFORE FILTRATION OF THE SLURRY IN ORDER TO EFFECT ADHESION OF THE MODIFIER POLYMER ONTO THE VINYL CHLORIDE POLYMER.
Inventors
- 👤 David Neil Harris
- 👤 Geoffrey Markham Hood
- 👤 Alan Sheller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:27
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06
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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |