US3125552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxidized poly amides
Assignee: —
•
Filing: —
•
Granted: 1964-03-17
•
Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:58
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G69/00; C08G69/48; D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/46; D21H17/54; D21H17/55
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
204 words
IN MAKING A WATER SOLUBLE ETHENOID BOND POLYMERIZABLE MONOMER CONTAINING TERMINAL AMIDE GROUPS AND A GLYCIDYL ETHER GROUP ATTACHED TO AND PENDANT FROM A SECONDARY AMINE GROUP, THE KPROCESS WHICH COMPRISES FORMING A MIXTURE OF (1) 1 MOLE OF OF AN ALKYLENE POLYAMINE, HAVING 2-4 CARBON ATOMS PER ALKYLENE UNIT, TWO TERMINAL PRIMARY AMINE GROUPS AND AT LEAST ONE INTERMEDIATE SECONDARY AMINE GROUP, AND (2) 0.9-1.6 MOLES OF AN ALPHA-UNSATURATED C4-C10 ALIPHATIC POLYCARBOXYLIC ACID, THE PROPORTION OF SAID ACID BEING SO SELECTED WHEN THE RANGE STATED AS TO PROVIDE THE ACID IN AMOUNT LESS THAN EQUIVALENT TO ALL AMINE GROUPS AND LEAVE AT LEAST ONE SECONDARY AMINE GRUP, HEATING THE RESULTING PRIMARY AMINE SALT HAVING THEREIN UNREACTED SECONDARY AMINE GROUP AT A TEMPERATURE ABOVE THE BOILING POINT OF WATER UNTIL SAID SALT IS DECOMPOSED TO AMIDE GROUP AND NO SUBSTANTIAL AMOUNT OF ADDITONAL WATER IS LIBERATED, THEN ADMIXING EPICHLOROHYDRIN IN THE PROPORTION OF ABOUT 0.4-3 MOLES FOR EACH MOLE OF SAID ACID USED, AND WARMING THE RESULTING MIXTURE AT A TEMPERATURE OF AT LEAST 50*C. UNTIL THE REACTION THAT ENSUES BETWEEN THE UNREACTED SECOND-I ARY AMINE GROUP AND THE EPICHLOREHYDRIN IS A SUBSTANTIALLY COMPLETED AND THE PH HAS FALLEN TO A SUBSTANTIALLY CONSTANT LEVEL.
Claim 2
Dependent Claim
204 words
IN MAKING A WATER SOLUBLE ETHENOID BOND POLYMERIZABLE MONOMER CONTAINING TERMINAL AMIDE GROUPS AND A GLYCIDYL ETHER GROUP ATTACHED TO AND PENDANT FROM A SECONDARY AMINE GROUP, THE KPROCESS WHICH COMPRISES FORMING A MIXTURE OF (1) 1 MOLE OF OF AN ALKYLENE POLYAMINE, HAVING 2-4 CARBON ATOMS PER ALKYLENE UNIT, TWO TERMINAL PRIMARY AMINE GROUPS AND AT LEAST ONE INTERMEDIATE SECONDARY AMINE GROUP, AND (2) 0.9-1.6 MOLES OF AN ALPHA-UNSATURATED C4-C10 ALIPHATIC POLYCARBOXYLIC ACID, THE PROPORTION OF SAID ACID BEING SO SELECTED WHEN THE RANGE STATED AS TO PROVIDE THE ACID IN AMOUNT LESS THAN EQUIVALENT TO ALL AMINE GROUPS AND LEAVE AT LEAST ONE SECONDARY AMINE GRUP, HEATING THE RESULTING PRIMARY AMINE SALT HAVING THEREIN UNREACTED SECONDARY AMINE GROUP AT A TEMPERATURE ABOVE THE BOILING POINT OF WATER UNTIL SAID SALT IS DECOMPOSED TO AMIDE GROUP AND NO SUBSTANTIAL AMOUNT OF ADDITONAL WATER IS LIBERATED, THEN ADMIXING EPICHLOROHYDRIN IN THE PROPORTION OF ABOUT 0.4-3 MOLES FOR EACH MOLE OF SAID ACID USED, AND WARMING THE RESULTING MIXTURE AT A TEMPERATURE OF AT LEAST 50*C. UNTIL THE REACTION THAT ENSUES BETWEEN THE UNREACTED SECOND-I ARY AMINE GROUP AND THE EPICHLOREHYDRIN IS A SUBSTANTIALLY COMPLETED AND THE PH HAS FALLEN TO A SUBSTANTIALLY CONSTANT LEVEL.
References Cited (Backward Citations)
US2149273A
Cited
US2483513A
Cited
US2641593A
Cited
US2632748A
Cited
GB786116A
Cited
US2970971A
Cited
US2893974A
Cited
US2926154A
Cited
US2961347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-17 | 1967-09-16 | 1968-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-17 | 1971-09-16 | 1972-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-17 | 1975-09-16 | 1976-03-17 | $7700.00 | Window Closed / Lapsed |