US3012008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyisocyanate compositions
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1958-03-28
•
Granted: 1961-12-05
•
Expires: 1978-03-28
Abstract
No abstract record available.
Inventors
- 👤 Lister Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:20
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/74; C08G18/76; C08G18/7657; C08G18/7664; Y; Y10; Y10S; Y10S528/00; Y10S528/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
AN ETHYL ACETATE-SOLUBLE INTERACTION PRODUCT OF (A) THE LIQUID POLYISOCYANATE COMPOSITION OBTAINED BY PHOSGENERATING A POLYAMINE COMPOSITION OBTAINED BY CONDENSING ONE MOLECULAR PROPORTION OF FORMALDEHYDE WITH AT LEAST FOUR MOLECULAR PROPORTIONS OF A MIXTURE OF A AT LEAST TWO AROMATIC AMINES SELECTED FROM THE GROUP CONSISTING OF O- AND M-ALKYLANILINE, O- AND M-CHLORANILINES, O-AND M-ANISIDINES, O- AND M-NITROANILINES, M-PHENYL DIAMINE, M-TOLUYLENE DIAMINE AND CHLORO-M-PHENYLENE DIAMINE, SAID MIXTURE CONTAINING AMOUNTS OF SAID AMINES SUFFICIENT THAT SAID POLYAMINE WILL CONTAIN NOT MORE THAN 80% OF ANY SINGLE AROMATIC AMINE WITH (B) AN AMOUNT SUFFICIENT TO PROVIDE 0.05 TO 0.5 ISOCYANATE-REACTIVE GROUP PER ISOCYANATE GROUP OF SAID LIQUID POLYISOCYANATE OF AT LEAST ONE ORGANIC COMPOUND SELECTED FRON THE GROUP CONSISTING OF HEXANE TRIOLS, TRIETHANOLAMINE, DIETHYLENE GLYCOL, BUTYLENE GLYCOLS, DIETHANOL AMINE, N-METHYLDIETHANOL AMINE, CASTOR OIL AND POLYESTERS FORMED BY CONDENSATION OF A POLYHDRIC ALCOHOL AND A POLYCARBOXYLIC ACID.
Claim 2
Dependent Claim
144 words
AN ETHYL ACETATE-SOLUBLE INTERACTION PRODUCT OF (A) THE LIQUID POLYISOCYANATE COMPOSITION OBTAINED BY PHOSGENERATING A POLYAMINE COMPOSITION OBTAINED BY CONDENSING ONE MOLECULAR PROPORTION OF FORMALDEHYDE WITH AT LEAST FOUR MOLECULAR PROPORTIONS OF A MIXTURE OF A AT LEAST TWO AROMATIC AMINES SELECTED FROM THE GROUP CONSISTING OF O- AND M-ALKYLANILINE, O- AND M-CHLORANILINES, O-AND M-ANISIDINES, O- AND M-NITROANILINES, M-PHENYL DIAMINE, M-TOLUYLENE DIAMINE AND CHLORO-M-PHENYLENE DIAMINE, SAID MIXTURE CONTAINING AMOUNTS OF SAID AMINES SUFFICIENT THAT SAID POLYAMINE WILL CONTAIN NOT MORE THAN 80% OF ANY SINGLE AROMATIC AMINE WITH (B) AN AMOUNT SUFFICIENT TO PROVIDE 0.05 TO 0.5 ISOCYANATE-REACTIVE GROUP PER ISOCYANATE GROUP OF SAID LIQUID POLYISOCYANATE OF AT LEAST ONE ORGANIC COMPOUND SELECTED FRON THE GROUP CONSISTING OF HEXANE TRIOLS, TRIETHANOLAMINE, DIETHYLENE GLYCOL, BUTYLENE GLYCOLS, DIETHANOL AMINE, N-METHYLDIETHANOL AMINE, CASTOR OIL AND POLYESTERS FORMED BY CONDENSATION OF A POLYHDRIC ALCOHOL AND A POLYCARBOXYLIC ACID.
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) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |