Patent US3840618A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3840618A Expired / Lapsed US ⏱️ 0.0 years remaining

Resin composition

Assignee: PPG Industries Inc
•
Filing: 1969-03-28
•
Granted: 1974-10-08
•
Expires: 1989-03-28
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract 1. A STORAGE STABLE COPOLYMERIZABLE MIXTURE CONSISTING ESSENTIALLY OF A LIQUID UNSATURATED POLYESTER RESINSAID RESIN BEING OBTAINED BY THE ESTERIFICATION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ALPHA, BETA-ETHYLENIC DICARBOXYLIC ACID AND THE ANHYDRIDE THEREOF WITH A POLYHYDRIC ALCOHOL, A REACTIVE MONOMERIC SUBSTANCE HAVING A CH2=C< GROUP, AT LEAST ABOUT 0.01% BY WEIGHT OF A GELATION INHIBITOR SELECTED FROM THE GROUP CONSISTING OF PHENOLS, QUINONES MONO-AMINE SALTS AND QUATERNARY AMMONIUM SALTS OF NON-OXIDIZING ACIDS AT LEAST AS STRONG AS ACETIC ACID AND A MINOR EFFECTIVE PROPORTION OF AT LEAST ABOUT 0.008 PARTS OF COPPER PER MILLION PARTS OF SAID RESIN AND MONOMERIC SUBSTANCE, SAND COPPER BEING IN THE FORM OF A COPPER SALT WHICH IS SOLUBLE IN THE LIQUID POLYESTER.

Inventors

  • 👤 Fano E Da
  • 👤 Fano M Da

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 21:07
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08F; C08F283/00; C08F283/01

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 122 words
A STORAGE STABLE COPOLYMERIZABLE MIXTURE CONSISTING ESSENTIALLY OF A LIQUID UNSATURATED POLYESTER RESINSAID RESIN BEING OBTAINED BY THE ESTERIFICATION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ALPHA, BETA-ETHYLENIC DICARBOXYLIC ACID AND THE ANHYDRIDE THEREOF WITH A POLYHYDRIC ALCOHOL, A REACTIVE MONOMERIC SUBSTANCE HAVING A CH2=C< GROUP, AT LEAST ABOUT 0.01% BY WEIGHT OF A GELATION INHIBITOR SELECTED FROM THE GROUP CONSISTING OF PHENOLS, QUINONES MONO-AMINE SALTS AND QUATERNARY AMMONIUM SALTS OF NON-OXIDIZING ACIDS AT LEAST AS STRONG AS ACETIC ACID AND A MINOR EFFECTIVE PROPORTION OF AT LEAST ABOUT 0.008 PARTS OF COPPER PER MILLION PARTS OF SAID RESIN AND MONOMERIC SUBSTANCE, SAND COPPER BEING IN THE FORM OF A COPPER SALT WHICH IS SOLUBLE IN THE LIQUID POLYESTER.
Claim 2
Dependent Claim 122 words
A STORAGE STABLE COPOLYMERIZABLE MIXTURE CONSISTING ESSENTIALLY OF A LIQUID UNSATURATED POLYESTER RESINSAID RESIN BEING OBTAINED BY THE ESTERIFICATION OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AN ALPHA, BETA-ETHYLENIC DICARBOXYLIC ACID AND THE ANHYDRIDE THEREOF WITH A POLYHYDRIC ALCOHOL, A REACTIVE MONOMERIC SUBSTANCE HAVING A CH2=C< GROUP, AT LEAST ABOUT 0.01% BY WEIGHT OF A GELATION INHIBITOR SELECTED FROM THE GROUP CONSISTING OF PHENOLS, QUINONES MONO-AMINE SALTS AND QUATERNARY AMMONIUM SALTS OF NON-OXIDIZING ACIDS AT LEAST AS STRONG AS ACETIC ACID AND A MINOR EFFECTIVE PROPORTION OF AT LEAST ABOUT 0.008 PARTS OF COPPER PER MILLION PARTS OF SAID RESIN AND MONOMERIC SUBSTANCE, SAND COPPER BEING IN THE FORM OF A COPPER SALT WHICH IS SOLUBLE IN THE LIQUID POLYESTER.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-10-07 1978-04-08 1978-10-08 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-10-07 1982-04-08 1982-10-08 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-10-07 1986-04-08 1986-10-08 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag