Patent US3370031A successfully refreshed from Google Patents.
US3370031A
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Process for preparing vinyl chloridevinyl ester copolymer latices
Assignee: Shell USA Inc
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Filing: 1964-03-09
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Granted: 1968-02-20
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Expires: 1984-03-09
Abstract
No abstract record available.
Inventors
- 👤 Einte P Grommers
- 👤 Geert C Vegter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:40
CPC Classifications
C; C08; C08F; C08F18/00; C08F18/02; C08F18/04; C08F214/00; C08F214/02; C08F214/04; C08F214/06; C08F218/00; C08F218/02; C08F218/04; C08F218/10; C08K; C08K5/00; C08K5/36; C08K5/41; Y; Y10; Y10S; Y10S526/00; Y10S526/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PROCESS FOR PREPARING MECHANICALLY STABLE, FREEZETOLERANT LATICES WHICH COMPRISES COPOLYMERIZING IN AQUEOUS EMULSION (1) 100 PARTS BY WEIGHT OF VINYL CHLORIDE WITH (2) FROM 50 TO 900 PARTS BY WEIGHT OF VINYL ESTERS OF ALPHA-BRANCHED SATURATED, ALIPHATIC MONOCARBOXYLIC ACIDS CONTAINING FROM 9 TO 19 CARBON ATOMS AND PREPARED BY REACTING OLEFINS WITH CARBON MONOXIDE AND WATER IN THE PRESENCE OF LIQUID ACID CATALYSTS AND HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
69 words
A PROCESS FOR PREPARING MECHANICALLY STABLE, FREEZETOLERANT LATICES WHICH COMPRISES COPOLYMERIZING IN AQUEOUS EMULSION (1) 100 PARTS BY WEIGHT OF VINYL CHLORIDE WITH (2) FROM 50 TO 900 PARTS BY WEIGHT OF VINYL ESTERS OF ALPHA-BRANCHED SATURATED, ALIPHATIC MONOCARBOXYLIC ACIDS CONTAINING FROM 9 TO 19 CARBON ATOMS AND PREPARED BY REACTING OLEFINS WITH CARBON MONOXIDE AND WATER IN THE PRESENCE OF LIQUID ACID CATALYSTS AND HAVING THE GENERAL FORMULA:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |