US2899405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of vinyl chloride or
Assignee: —
•
Filing: —
•
Granted: 1959-08-11
•
Expires: 1976-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:00
CPC Classifications
C; C08; C08F; C08F265/00; C08F265/10; Y; Y10; Y10S; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
THE PROCESS WHICH COMPRISES HEATING, AT A TEMPERATURE OF 15* - 75* C. IN WATER AND IN THE PRESENCE OF A PEROXIDE POLYMERIZATION CATALYST, A MIXTURE CONSISTING OF (A) FROM 60-95% BY WEIGHT OF POLYMERIZABLE MONOETHYLENIC MATERIAL CONTAINING AT LEAST 30% BY WEIGHT OF A MEMBER OF THE GROUP CONSISTING OF VINYL CHLORIDE AND VINYLIDENE CHLORIDE, AND (B) FROM 40-5% BY WEIGHT OF AN ISOLATED PREFORMED POLYMER FROM THE GROUP CONSISTING OF (A) A HOMOPOLYMER OF AN AMIDE BY THE GENERAL FORMULA:
Claim 2
Dependent Claim
82 words
THE PROCESS WHICH COMPRISES HEATING, AT A TEMPERATURE OF 15* - 75* C. IN WATER AND IN THE PRESENCE OF A PEROXIDE POLYMERIZATION CATALYST, A MIXTURE CONSISTING OF (A) FROM 60-95% BY WEIGHT OF POLYMERIZABLE MONOETHYLENIC MATERIAL CONTAINING AT LEAST 30% BY WEIGHT OF A MEMBER OF THE GROUP CONSISTING OF VINYL CHLORIDE AND VINYLIDENE CHLORIDE, AND (B) FROM 40-5% BY WEIGHT OF AN ISOLATED PREFORMED POLYMER FROM THE GROUP CONSISTING OF (A) A HOMOPOLYMER OF AN AMIDE BY THE GENERAL FORMULA:
References Cited (Backward Citations)
US2123599A
Cited
GB627265A
Cited
US2470908A
Cited
FR999594A
Cited
US2666025A
Cited
US2620324A
Cited
US2666042A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |