US3297618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable aqueous emulsions of ethylenevinyl chloride maleate copolymers
Assignee: Bayer AG
•
Filing: 1964-01-06
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Granted: 1967-01-10
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Expires: 1984-01-06
Abstract
No abstract record available.
Inventors
- 👤 Glabisch Dietrich
- 👤 Bartl Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:14
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/02; C08F214/04; C08F214/06; C08F10/00; C08F214/16; Y; Y10; Y10S; Y10S526/00; Y10S526/915
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
THE PROCESS FOR PREPARING STABLE AQUEOUS EMULSIONS OF ETHYLENE COPOLYMERS, SAID PROCESS CONSISTING ESSENTIALLY OF COPOLYMERIZING ETHYLENE, 50-70 PERCENT BY WEIGHT OF VINYL CHLORIDE AND 2-10 PERCENT BY WEIGHT OF A SALT OF A SEMI-ESTER OF (1) MALEIC ACID AND (2) AN ALIPHATIC MONOHYDRIC ALCOHOL CONTAINING UP TO 6 CARBON ATOMS IN AN AQUEOUS MEDIUM ADJUSTED TO A PH BETWEEN 4 AND 8 AT ELEVATED PRESSURE IN THE PRESENCE OF A WATER-SOLUBLE FREE RADICAL FORMING SUBSTANCE.
Claim 2
Dependent Claim
76 words
THE PROCESS FOR PREPARING STABLE AQUEOUS EMULSIONS OF ETHYLENE COPOLYMERS, SAID PROCESS CONSISTING ESSENTIALLY OF COPOLYMERIZING ETHYLENE, 50-70 PERCENT BY WEIGHT OF VINYL CHLORIDE AND 2-10 PERCENT BY WEIGHT OF A SALT OF A SEMI-ESTER OF (1) MALEIC ACID AND (2) AN ALIPHATIC MONOHYDRIC ALCOHOL CONTAINING UP TO 6 CARBON ATOMS IN AN AQUEOUS MEDIUM ADJUSTED TO A PH BETWEEN 4 AND 8 AT ELEVATED PRESSURE IN THE PRESENCE OF A WATER-SOLUBLE FREE RADICAL FORMING SUBSTANCE.
References Cited (Backward Citations)
GB579883A
Cited
US2599123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |