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US2928810A Expired / Lapsed US ⏱️ 0.0 years remaining

Aliphatic alcohol-epoxide resin compositions

Assignee: Celanese Coatings Co
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Filing: 1957-11-15
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Granted: 1960-03-15
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Expires: 1977-11-15
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Abstract

No abstract record available.

Inventors

  • 👤 William J Belanger

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 15:36
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/62; C08G59/68; C08G59/686

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 153 words
IN THE PROCESS FOR RESINIFYING AND CURING A GLYCIDYL POLYETHER OF A POLYHYDRIC COMPOUND OF THE GROUP CONSISTING OF POLYHYDRIC PHENOLS AND POLYHYDRIC ALCHOLS, SAID GLYCIDYL POLYETHER HAVING AN EPOXY EQUIVALENCY GREATER THAN ONE, WHEREIN THE GLYCIDYL POLYETHER IS MIXED AND HEAT REACTED WITH A POLYHDRIC NALIPHATIC ALCHOL CONTAINING ONLY CARBON, HYDROGEN AND OXYGEN AND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDRICARBONS SUBSTITUTED ONLY BY HYDROXYL GROUPS, POLYGLYCOLS, POLYGLYCEROLS AND POLYPENTAERYTRHRITOLS, SAID POLYDRIC ALCHOLS HAVING AT LEAST TWO PRIMARY ALCHOLIC HYDROXYL GROUPS, THE IMPROVEMENT WHICH COMPRISES HEAT REACTING THE GLYCIDYL POLYETHER AND THE POLYHDRIC ALCHOL AND ADDING AS AN ACCLERATOR FOR THE REACTION 0.1 TO 10 PERCENT, BASED ON THE POLYETHER-ALCHOL MIXTURE, OF AN ACTIVATOR CONSISTING OF A QUATERNARY AMMONIUM SALT SELECTED FROM THE GROUP CONSISTING OF TETRA-AKYL, ARYL TRIALKYL AND ALKARYL TRIALKYL AMMONIUM SALTS OF STRONG ACIDS WHEREIN THE ARYL, ALKARYL AND ALKYL SUBSTITUENTS HAVE NO MORE THAN EIGHT CARBON ATOMS.
Claim 2
Dependent Claim 153 words
IN THE PROCESS FOR RESINIFYING AND CURING A GLYCIDYL POLYETHER OF A POLYHYDRIC COMPOUND OF THE GROUP CONSISTING OF POLYHYDRIC PHENOLS AND POLYHYDRIC ALCHOLS, SAID GLYCIDYL POLYETHER HAVING AN EPOXY EQUIVALENCY GREATER THAN ONE, WHEREIN THE GLYCIDYL POLYETHER IS MIXED AND HEAT REACTED WITH A POLYHDRIC NALIPHATIC ALCHOL CONTAINING ONLY CARBON, HYDROGEN AND OXYGEN AND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC HYDRICARBONS SUBSTITUTED ONLY BY HYDROXYL GROUPS, POLYGLYCOLS, POLYGLYCEROLS AND POLYPENTAERYTRHRITOLS, SAID POLYDRIC ALCHOLS HAVING AT LEAST TWO PRIMARY ALCHOLIC HYDROXYL GROUPS, THE IMPROVEMENT WHICH COMPRISES HEAT REACTING THE GLYCIDYL POLYETHER AND THE POLYHDRIC ALCHOL AND ADDING AS AN ACCLERATOR FOR THE REACTION 0.1 TO 10 PERCENT, BASED ON THE POLYETHER-ALCHOL MIXTURE, OF AN ACTIVATOR CONSISTING OF A QUATERNARY AMMONIUM SALT SELECTED FROM THE GROUP CONSISTING OF TETRA-AKYL, ARYL TRIALKYL AND ALKARYL TRIALKYL AMMONIUM SALTS OF STRONG ACIDS WHEREIN THE ARYL, ALKARYL AND ALKYL SUBSTITUENTS HAVE NO MORE THAN EIGHT CARBON ATOMS.

References Cited (Backward Citations)

US2752269A Cited
US2731444A Cited
US2768992A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1963-03-15 1963-09-14 1964-03-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1967-03-15 1967-09-14 1968-03-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1971-03-15 1971-09-14 1972-03-15 $7700.00 Window Closed / Lapsed

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