US3308081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable aqueous dispersions of copolymers of ethylene and unsaturated amines
Assignee: Bayer AG
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Filing: 1962-03-12
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Granted: 1967-03-07
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Expires: 1982-03-12
Abstract
No abstract record available.
Inventors
- 👤 Glabisch Dietrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:01
CPC Classifications
C; C08; C08F; C08F210/00; C08F210/02; Y; Y10; Y10S; Y10S526/00; Y10S526/923
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A PROCESS FOR THE PRODUCTION OF A STABLE LATEX OF ETHYLENE COPOLYMERS HAVING A HIGH SOLIDS CONTENT WHICH ARE FREE FROM USUAL EMULSIFIERS, WHICH COMPRISES POLYMERIZING ETHYLENE IN AN AQUEOUS MEDIUM (A) AT PRESSURES ABOVE 100 ATMOSPHERES, (B) WITH THE AID OF A WATER-SOLUBLE SUBSTANCE CAPABLE OF FORMING FREE RADICALS IN AN AMOUNT OF FROM 0.1 TO 3% BY WEIGHT CALCULATED ON THE QUANTITY OF POLYMER, (C) IN THE PRESENCE OF 0.1 TO 10% BY WEIGHT, CALCULATED ON THE POLYMER, OF AN AMINE CONTAINING ONE POLYMERIZABLE CARBON-TO-CARBON DOUBLE BOND, SAID AMINE BEING SELECTED FROM THE GROUP CONSISTING OF A PRIMARY AMINE, A SECONDARY AMINE AND A TERTIARY AMINE.
Claim 2
Dependent Claim
108 words
A PROCESS FOR THE PRODUCTION OF A STABLE LATEX OF ETHYLENE COPOLYMERS HAVING A HIGH SOLIDS CONTENT WHICH ARE FREE FROM USUAL EMULSIFIERS, WHICH COMPRISES POLYMERIZING ETHYLENE IN AN AQUEOUS MEDIUM (A) AT PRESSURES ABOVE 100 ATMOSPHERES, (B) WITH THE AID OF A WATER-SOLUBLE SUBSTANCE CAPABLE OF FORMING FREE RADICALS IN AN AMOUNT OF FROM 0.1 TO 3% BY WEIGHT CALCULATED ON THE QUANTITY OF POLYMER, (C) IN THE PRESENCE OF 0.1 TO 10% BY WEIGHT, CALCULATED ON THE POLYMER, OF AN AMINE CONTAINING ONE POLYMERIZABLE CARBON-TO-CARBON DOUBLE BOND, SAID AMINE BEING SELECTED FROM THE GROUP CONSISTING OF A PRIMARY AMINE, A SECONDARY AMINE AND A TERTIARY AMINE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |