US3271373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of ionized salts of unsaturated monocarboxylic acids to prevent coagulation in the emulsion polymerization of carboxyl containing monomers
Assignee: EIDP Inc
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Filing: 1964-06-22
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Granted: 1966-09-06
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Expires: 1984-06-22
Abstract
No abstract record available.
Inventors
- 👤 Jr Vernon Clare Wolff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:48
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
IN A PROCESS OF PREPARING COPOLYMERS OF ETHYLENE, A MONOMER SELECTED FROM THE GROUP CONSISTING OF VINYL CHLORIDE AND VINYL ACETATE, AND AT LEAST ONE MONOCARBOXYL SUBSTITUTED MONOOLEFIN BY FREE RADICAL CATALYZED AQUEOUS EMULSION COPOLYMERIZATION AT SUPERATMOSPHERIC PRESSURE, THE IMPROVEMENT COMPRISING CARRYING OUT THE COPOLYMERIZATION IN THE PRESENCE OF COAGULUM REDUCING AMOUNT OF AN IONIZED SALT OF SAID MONOCARBOXYL SUBSTITUTED MONOOLEFIN.
Claim 2
Dependent Claim
61 words
IN A PROCESS OF PREPARING COPOLYMERS OF ETHYLENE, A MONOMER SELECTED FROM THE GROUP CONSISTING OF VINYL CHLORIDE AND VINYL ACETATE, AND AT LEAST ONE MONOCARBOXYL SUBSTITUTED MONOOLEFIN BY FREE RADICAL CATALYZED AQUEOUS EMULSION COPOLYMERIZATION AT SUPERATMOSPHERIC PRESSURE, THE IMPROVEMENT COMPRISING CARRYING OUT THE COPOLYMERIZATION IN THE PRESENCE OF COAGULUM REDUCING AMOUNT OF AN IONIZED SALT OF SAID MONOCARBOXYL SUBSTITUTED MONOOLEFIN.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |