Patent US3288730A successfully refreshed from Google Patents.
US3288730A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyaddition products 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: 1966-11-29
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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
2026-11-08 09:18
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4205; C08G18/423; C08G18/4233; C08G69/00; C08G2110/00; C08G2110/0041; C08G2110/0058
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A PROCESS FOR THE PRODUCTION OF POLYADDITION PRODUCTS WHICH COMPRISES REACTING AN ORGANIC POLYISOCYANATE WITH A POLYESTER RESULTING FROM THE ALCOHOLYSIS OF A POLYHYDRIC ALCOHOL 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 0.1 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., THE SAID POLYESTER BEING ONE IN WHICH THE SUM OF THE ACID NUMBER AND THE HYDROXYL NUMBER LIES IN THE RANGE OF 25 TO 400.
Claim 2
Dependent Claim
150 words
A PROCESS FOR THE PRODUCTION OF POLYADDITION PRODUCTS WHICH COMPRISES REACTING AN ORGANIC POLYISOCYANATE WITH A POLYESTER RESULTING FROM THE ALCOHOLYSIS OF A POLYHYDRIC ALCOHOL 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 0.1 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., THE SAID POLYESTER BEING ONE IN WHICH THE SUM OF THE ACID NUMBER AND THE HYDROXYL NUMBER LIES IN THE RANGE OF 25 TO 400.
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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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |