US3047530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction product of an isocyanate-modified unsaturated polyester with an ethylenically unsaturated monomer and a polyamino compound, and process for prepararing same
Assignee: Bayer AG
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Filing: 1955-07-14
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Granted: 1962-07-31
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Expires: 1975-07-14
Abstract
No abstract record available.
Inventors
- 👤 Nischk Gunther
- 👤 Karl E Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:05
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/68; C08G18/08; C08G18/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A METHOD FOR MAKING POLYMERS WHICH COMPRISES REACTING AN ISOCYANATE-MODIFIED UNSATURATED POLYESTER HAVING TERMINAL -NCO GROUPS, FROM ABOUT 10 PERCENT TO ABOUT 50 PERCENT OF A POLYMERIZABLE ETHYLENICALLY UNSATURATED MONOMER BASED ON THE WEIGHT OF SAID POLYESTER AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN AROMATIC POLYAMINE AND A POLYAMINO ALCOHOL HAVING AT LEAST ONE HYDROGEN ATOM ON EACH NITROGEN ATOM; SAID ISOCYANATE-MODIFIED POLYESTER HAVING BEEN PREPARED BY REACTING AN EXCESS ORGANIC POLYISOCYANATE WITH A POLYESTER PREPARED BY CONDENSATION OF A DICARBOXYLIC ACID INCLUDING AN ETHYLENICALLY UNSATURATED DICARBOXYLIC ACID AND A POLYHYDRIC ALCOHOL AND HAVING AN AVERAGE MOLECULAR WEIGHT OF FROM ABOUT 250 TO ABOUT 5,000, AN HYDROXYL NUMBER OF FROM ABOUT 80 TO ABOUT 450 AND AN ACID NUMBER OF FROM ZERO TO ABOUT 40; SAID POLYAMINO ALCOHOL HAVING BEEN PREPARED BY REACTION OF ETHYLENE OXIDE AND AN AROMATIC POLYAMINE.
Claim 2
Independent Claim
143 words
A METHOD FOR MAKING POLYMERS WHICH COMPRISES REACTING AN ISOCYANATE-MODIFIED UNSATURATED POLYESTER HAVING TERMINAL -NCO GROUPS, FROM ABOUT 10 PERCENT TO ABOUT 50 PERCENT OF A POLYMERIZABLE ETHYLENICALLY UNSATURATED MONOMER BASED ON THE WEIGHT OF SAID POLYESTER AND A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN AROMATIC POLYAMINE AND A POLYAMINO ALCOHOL HAVING AT LEAST ONE HYDROGEN ATOM ON EACH NITROGEN ATOM; SAID ISOCYANATE-MODIFIED POLYESTER HAVING BEEN PREPARED BY REACTING AN EXCESS ORGANIC POLYISOCYANATE WITH A POLYESTER PREPARED BY CONDENSATION OF A DICARBOXYLIC ACID INCLUDING AN ETHYLENICALLY UNSATURATED DICARBOXYLIC ACID AND A POLYHYDRIC ALCOHOL AND HAVING AN AVERAGE MOLECULAR WEIGHT OF FROM ABOUT 250 TO ABOUT 5,000, AN HYDROXYL NUMBER OF FROM ABOUT 80 TO ABOUT 450 AND AN ACID NUMBER OF FROM ZERO TO ABOUT 40; SAID POLYAMINO ALCOHOL HAVING BEEN PREPARED BY REACTION OF ETHYLENE OXIDE AND AN AROMATIC POLYAMINE.
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) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |