US3554953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of polyvinyl halide
Assignee: Hexion Inc
•
Filing: 1966-12-14
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Granted: 1971-01-12
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Expires: 1986-12-14
Abstract
Abstract THIS INVENTION RELATES TO A PROCESS OF MAKING FINE PARTICLE SIZE POLYMERIZED VINYL CHLORIDE AND COPOLYMER OF VINYL CHLORIDE WITH OTHER COPOLYMERIZABLE MONOMERS BY AQUEOUS SUSPENSION IN THE PRESENCE OF A SUSPENDING AGENT WHICH IS THE REACTION PRODUCT OF A C2-C4 ALKYLENE OXIDE AND A PARTIALLY NEUTRALIZED COPOLYMER OF AN ACRYLATE ESTER AND ACRYLIC ACID.
Inventors
- 👤 Eugene Alfred Duchesnean Jr
- 👤 Donald Francis Boudreau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:29
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/02; C08F14/04; C08F14/06; C08F265/00; C08F265/04; Y; Y10; Y10S; Y10S516/00; Y10S516/01
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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |