Patent US3282872A successfully refreshed from Google Patents.
US3282872A
Expired / Lapsed
US
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Polyaddition products from polyamides of polybasic araliphatic carboxylic acids
Assignee: Harburger Fettchemie Brinckman and Mergell GmbH
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Filing: 1963-04-25
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Granted: 1966-11-01
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Expires: 1983-04-25
Abstract
No abstract record available.
Inventors
- 👤 Baltes Josef
- 👤 Weghorst Friedrich
- 👤 Makus Zdzislaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:12
CPC Classifications
F; F02; F02B; F02B55/00; F02B55/16; C; C08; C08G; C08G69/00; C08G69/02; C08G69/26; C08L; C08L63/00; C08L77/00; C08L77/06; C08L77/08; F02B53/00; F02B2730/00; F02B2730/01; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A COMPOSITION OF MATTER COMPRISING 5-95% OF A HARDENABLE EPOXY COMPOUND HAVING TERMINAL EPOXY GROUPS AND FROM 95-5% OF A POLYAMIDE PREPARED BY A PROCESS WHICH COMPRISES CONDENSING A POLYAMINE HAVING 2 TO 5 AMINO GROUPS WITH A POLYBASIC ARALIPHATIC CARBOXYLIC COMPOUND, SAID COMPOUND HAVING BEEN PREPARED BY SUBJECTING A CONJUGATED UNSATURATED FATTY ACID COMPOUND SELECTED FROM THE CLASS CONSISTING OF CONJUGATED UNSATURATED FATTY ACIDS, AND C1 TO C4 ALKANOL ESTERS OF SAID ACIDS TO IONIC COPOLYMERIZATION WITH AN AROMATIC VINYL COMPOUND SELECTED FROM THE CLASS CONSISTING OF STYRENE, ALPHA-METHYL STYRENE AND VINYL TOLUENE IN THE PROPORTION OF 1 MOLE OF FATTY ACID COMPOUND TO 0.2 TO 5 MOLES OF AROMATIC VINYL COMPOUND AND CONTROLLING THE TEMPERATURE OF THE REACTING MASS TO PREVENT THE MASS TEMPERATURE FROM EXCEEDING AT ANY TIME A TEMPERATURE OF ABOUT 200* C., SAID POLYAMIDE FORMING PROCESS COMPRISING CONTROLLING THE MASS TEMPERATURE THROUGHOUT THE COURSE OF THE RESULTING REACTION TO MAINTAIN THE TEMPERATURE WITHIN THE RANGE OF 120 TO 230* C.
Claim 2
Dependent Claim
165 words
A COMPOSITION OF MATTER COMPRISING 5-95% OF A HARDENABLE EPOXY COMPOUND HAVING TERMINAL EPOXY GROUPS AND FROM 95-5% OF A POLYAMIDE PREPARED BY A PROCESS WHICH COMPRISES CONDENSING A POLYAMINE HAVING 2 TO 5 AMINO GROUPS WITH A POLYBASIC ARALIPHATIC CARBOXYLIC COMPOUND, SAID COMPOUND HAVING BEEN PREPARED BY SUBJECTING A CONJUGATED UNSATURATED FATTY ACID COMPOUND SELECTED FROM THE CLASS CONSISTING OF CONJUGATED UNSATURATED FATTY ACIDS, AND C1 TO C4 ALKANOL ESTERS OF SAID ACIDS TO IONIC COPOLYMERIZATION WITH AN AROMATIC VINYL COMPOUND SELECTED FROM THE CLASS CONSISTING OF STYRENE, ALPHA-METHYL STYRENE AND VINYL TOLUENE IN THE PROPORTION OF 1 MOLE OF FATTY ACID COMPOUND TO 0.2 TO 5 MOLES OF AROMATIC VINYL COMPOUND AND CONTROLLING THE TEMPERATURE OF THE REACTING MASS TO PREVENT THE MASS TEMPERATURE FROM EXCEEDING AT ANY TIME A TEMPERATURE OF ABOUT 200* C., SAID POLYAMIDE FORMING PROCESS COMPRISING CONTROLLING THE MASS TEMPERATURE THROUGHOUT THE COURSE OF THE RESULTING REACTION TO MAINTAIN THE TEMPERATURE WITHIN THE RANGE OF 120 TO 230* C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |