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US2628221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of vinyl esters and tertiary amino nitrogen-containing compounds and process for producing same
Assignee: EIDP Inc
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Filing: 1951-04-03
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Granted: 1953-02-10
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Expires: 1971-04-03
Abstract
No abstract record available.
Inventors
- 👤 Frank D Marsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:19
CPC Classifications
C; C08; C08F; C08F218/00; C08F218/02; C08F218/04; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/17; Y10S260/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A TERTIARY ATMINONITROGEN-CONTAINING POLYMER OF A N,N-DISUBSTITUTED MONOETHYLENICALLY UNSATURATED AMINE AND A VINYL ALCOHOL ESTER OF AN ALIPHATIC MONOCARBOXYLIC ACID CHARACTERIZED IN HAVING A MAIN POLYMER CHAIN CONSISTING OF CARBON ATOMS ONLY AND LATERAL SUBSTITUENTS CONTAINING A RADICAL FROM THE CLASS CONSISTING OF ACYLOXY AND HYDROXYL RADICALS, AND AMIDONITROGEN-FREE ALIPHATIC, INCLUDING CYCLOALIPHATIC, TERTIARY AMINONITROGEN-CONTAINING GROUPS IN WHICH THE ATOM VICINAL TO THE MAIN POLYMER CHAIN IS ATTACHED TO OTHER ATOMS BY SINGLE BONDS ONLY AND THE CARBON TO WHICH THE TERTIARY AMINONITROGEN IS LINKED IS ATTACHED TO ONLY ONE OTHER CARBON ATOM.
Claim 2
Dependent Claim
92 words
A TERTIARY ATMINONITROGEN-CONTAINING POLYMER OF A N,N-DISUBSTITUTED MONOETHYLENICALLY UNSATURATED AMINE AND A VINYL ALCOHOL ESTER OF AN ALIPHATIC MONOCARBOXYLIC ACID CHARACTERIZED IN HAVING A MAIN POLYMER CHAIN CONSISTING OF CARBON ATOMS ONLY AND LATERAL SUBSTITUENTS CONTAINING A RADICAL FROM THE CLASS CONSISTING OF ACYLOXY AND HYDROXYL RADICALS, AND AMIDONITROGEN-FREE ALIPHATIC, INCLUDING CYCLOALIPHATIC, TERTIARY AMINONITROGEN-CONTAINING GROUPS IN WHICH THE ATOM VICINAL TO THE MAIN POLYMER CHAIN IS ATTACHED TO OTHER ATOMS BY SINGLE BONDS ONLY AND THE CARBON TO WHICH THE TERTIARY AMINONITROGEN IS LINKED IS ATTACHED TO ONLY ONE OTHER CARBON ATOM.
References Cited (Backward Citations)
US2138763A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |