US2806822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester-amide copolymers
Assignee: Monsanto Chemicals Ltd
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Filing: 1951-08-28
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Granted: 1957-09-17
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Expires: 1971-08-28
Abstract
No abstract record available.
Inventors
- 👤 John B Ott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:00
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A COPOLYMER OF FROM 1 TO 30 PARTS OF AN AROMATIC COMPOUND HAVING A SIDE-CHAIN CONTAINING ETHYLENIC UNSATURATION AND 100 PARTS OF AN UNSATURATED POLYESTER AMIDE PREPARED SOLELY FROM 1 MOL OF A SATURATED DICARBOCYLIC ACID WHICH DOES NOT FORM AN INNER ANHYDRIDE, FROM 1.02 TO 1.2 MOLS OF A NON-TERTIARY MONO-ALKANOLAMINE, AND FROM 0.04 TO 0.4 MOL OF A COMPOUND TAKEN FROM THE GROUP CONSISTING OF ETHYLENICALLY UNSATURATED DICARBOXYLIC ACIDS AND THE ANHYDRIDES THEREOF, SAID AROMATIC COMPOUND BEING TAKEN FROM THE GROUP CONSISTING OF STYRENE, VINYL BIPHENYL, VINYL BENZOATE, AND VINYL NAPHTHALENE.
Claim 2
Dependent Claim
93 words
A COPOLYMER OF FROM 1 TO 30 PARTS OF AN AROMATIC COMPOUND HAVING A SIDE-CHAIN CONTAINING ETHYLENIC UNSATURATION AND 100 PARTS OF AN UNSATURATED POLYESTER AMIDE PREPARED SOLELY FROM 1 MOL OF A SATURATED DICARBOCYLIC ACID WHICH DOES NOT FORM AN INNER ANHYDRIDE, FROM 1.02 TO 1.2 MOLS OF A NON-TERTIARY MONO-ALKANOLAMINE, AND FROM 0.04 TO 0.4 MOL OF A COMPOUND TAKEN FROM THE GROUP CONSISTING OF ETHYLENICALLY UNSATURATED DICARBOXYLIC ACIDS AND THE ANHYDRIDES THEREOF, SAID AROMATIC COMPOUND BEING TAKEN FROM THE GROUP CONSISTING OF STYRENE, VINYL BIPHENYL, VINYL BENZOATE, AND VINYL NAPHTHALENE.
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) | 1960-09-16 | 1961-03-18 | 1961-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-16 | 1965-03-18 | 1965-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-16 | 1969-03-18 | 1969-09-17 | $7700.00 | Window Closed / Lapsed |