US3076794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl chloride polymerization process with metal alkyl catalyst
Assignee: Solvic SA
•
Filing: 1959-04-03
•
Granted: 1963-02-05
•
Expires: 1979-04-03
Abstract
No abstract record available.
Inventors
- 👤 Schnack Otto Nicolas
- 👤 Coene Robert De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:14
CPC Classifications
C; C08; C08F; C08F114/00; C08F114/02; C08F114/04; C08F114/06; Y; Y10; Y10S; Y10S260/00; Y10S260/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A PROCESS FOR THE HOMOPOLYMERIZATION OF VINYL CHLORIDE WHICH COMPRISES EFFECTING POLYMERIZATION AT A TEMPERATURE OF -50*C. TO 30*C. IN THE PRESENCE OF A CATALYST CONSISTING OF A COMPOUND HAVING THE FORMULA MRN, WHEREIN M IS A METAL SELECTED FROM THE GROUP CONSISTING OF THE ALKYLI METALS, BERYLLIUM, CADIUM, ZINC, MERCURY, ALUMINUM, GALLIUM, INDIUM AND THALIUM, R IS AN ALKYL RADICAL UP TO 4 CARBON ATOMS, AND N IS AN INTEGER RANGING FROM 1 TO 3 DEPENDING UPON THE VALENCE OF M, SAID CATALYST BEING PRESENT IN THE AMOUNT OF 0.1 TO 5% BY WEIGHT OF THE VINYL CHLORIDE.
Claim 2
Dependent Claim
99 words
A PROCESS FOR THE HOMOPOLYMERIZATION OF VINYL CHLORIDE WHICH COMPRISES EFFECTING POLYMERIZATION AT A TEMPERATURE OF -50*C. TO 30*C. IN THE PRESENCE OF A CATALYST CONSISTING OF A COMPOUND HAVING THE FORMULA MRN, WHEREIN M IS A METAL SELECTED FROM THE GROUP CONSISTING OF THE ALKYLI METALS, BERYLLIUM, CADIUM, ZINC, MERCURY, ALUMINUM, GALLIUM, INDIUM AND THALIUM, R IS AN ALKYL RADICAL UP TO 4 CARBON ATOMS, AND N IS AN INTEGER RANGING FROM 1 TO 3 DEPENDING UPON THE VALENCE OF M, SAID CATALYST BEING PRESENT IN THE AMOUNT OF 0.1 TO 5% BY WEIGHT OF THE VINYL CHLORIDE.
References Cited (Backward Citations)
US2910461A
Cited
US2846427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |