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US2585115A Expired / Lapsed US ⏱️ 0.0 years remaining

Amine-epoxide compositions

Assignee: Celanese Coatings Co
•
Filing: 1945-09-18
•
Granted: 1952-02-12
•
Expires: 1965-09-18
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Abstract

No abstract record available.

Inventors

  • 👤 Greenlee Sylvan Owen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 11:02
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/5006; C08G59/502

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 147 words
AMINE-EPOXY COMPOSITIONS CONTAINING COMPLEX RESINOUS EXPOXIDES AND POLYFUNCTIONAL POLYETHYLENE POLYAMINES FREE FROM FUNCTIONAL GROUPS OTHER THAN PRIMARY AND SECONDARY AMINE GROUPS DISSOLVED IN A KETONE SOLVENT TO FORM A SOLUTION FOR USE IN VARNISHES AND PROTECTIVE COATINGS, THE COMPLEX RESINOUS EPOXIDES BEING POLYMERIC POLYETHERS OF DIHYDRIC PHENOLS, SAID DIHYDRIC PHENOLS BEING FREE FROM FUNCTIONAL GROUPS OTHER THAN PHENOLIC HYDROXYL GROUPS, SAID RESINOUS EPOXIDES RESULTING FROM THE HEATING OF THE DIHYDRIC PHENOL WITH AN EXCESS OF EPICHLORHYDRIN AND OF CAUSTIC ALKALI AND HAVING INTERMEDIATE ALCOHOLIC-HYDROXYL-CONTAINING ALIPHATIC GROUPS AND EPOXIDECONTAINING TERMINAL ALIPHATIC GROUPS, SAID RESINOUS EPOXIDES BEING FREE FROM FUNCTIONAL GROUPS OTHER THAN ALCOHOLIC HYDORXYL AND EPOXIDE GROUPS, THE AMOUNT OF POLYFUNCTIONAL POLYETHYLENE POLYAMINE BEING FROM ABOUT 1/4 TO ABOUT 1.7 OF THE AMOUNT EQUIVALENT TO THE RESINOUS EPOXIDE, CONSIDERING ONE ACTIVE HYDROGEN OF THE AMINE GROUPS OF THE POLYAMINE EQUIVALENT TO ONE EPOXIDE GROUP OF THE COMPLEX EPOXIDE.
Claim 2
Dependent Claim 147 words
AMINE-EPOXY COMPOSITIONS CONTAINING COMPLEX RESINOUS EXPOXIDES AND POLYFUNCTIONAL POLYETHYLENE POLYAMINES FREE FROM FUNCTIONAL GROUPS OTHER THAN PRIMARY AND SECONDARY AMINE GROUPS DISSOLVED IN A KETONE SOLVENT TO FORM A SOLUTION FOR USE IN VARNISHES AND PROTECTIVE COATINGS, THE COMPLEX RESINOUS EPOXIDES BEING POLYMERIC POLYETHERS OF DIHYDRIC PHENOLS, SAID DIHYDRIC PHENOLS BEING FREE FROM FUNCTIONAL GROUPS OTHER THAN PHENOLIC HYDROXYL GROUPS, SAID RESINOUS EPOXIDES RESULTING FROM THE HEATING OF THE DIHYDRIC PHENOL WITH AN EXCESS OF EPICHLORHYDRIN AND OF CAUSTIC ALKALI AND HAVING INTERMEDIATE ALCOHOLIC-HYDROXYL-CONTAINING ALIPHATIC GROUPS AND EPOXIDECONTAINING TERMINAL ALIPHATIC GROUPS, SAID RESINOUS EPOXIDES BEING FREE FROM FUNCTIONAL GROUPS OTHER THAN ALCOHOLIC HYDORXYL AND EPOXIDE GROUPS, THE AMOUNT OF POLYFUNCTIONAL POLYETHYLENE POLYAMINE BEING FROM ABOUT 1/4 TO ABOUT 1.7 OF THE AMOUNT EQUIVALENT TO THE RESINOUS EPOXIDE, CONSIDERING ONE ACTIVE HYDROGEN OF THE AMINE GROUPS OF THE POLYAMINE EQUIVALENT TO ONE EPOXIDE GROUP OF THE COMPLEX EPOXIDE.

References Cited (Backward Citations)

US2167073A Cited
US2136928A Cited
US2213477A Cited
GB518057A Cited
US2324483A Cited
CH236594A Cited
US2444333A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1955-02-11 1955-08-13 1956-02-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1959-02-11 1959-08-13 1960-02-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1963-02-11 1963-08-13 1964-02-12 $7700.00 Window Closed / Lapsed

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