Coating compositions comprising polytetrafluoroethylene and phenol aldehyde, and article coated therewith

Claim 1

A LIQUID COATING COMPOSITION C OMPRISING COLLOIDAL TETRAFLUOROETHYLENE RESIN, 5%-100% OF HEAT-REACTIVE PHENOL ALDEHYDE RESIN, AND UP TO 100% OF OTHER-ORGANIC FILM-FORMING MATERIAL, IN A LIQUID MEDIUM COMPRISING WATER, THE PERCENTAGES BEING BY WEIGHT BASED ON THE TETRAFLUOROETHYLENE RESIN, AND SAID OTHER ORGANIC FILMFORMING MATERIAL BEING A MEMBER OF THE CLASS CONSISTING OF (1) POLYVINYL BUTYRAL, (2) ETHYL CELLULOSE, (3) AN INTERPOLYMER OF 100 PARTS BY WEIGHT OF A MIXTURE OF MONOMERS CONSISTING OF (A) 30-80 PARTS OF ACRYLONITRILE, (B) 2-15 PARTS OF AN ALPHA-OLEFINIC MONOCARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC, METHACRYLIC, ETHACRYLIC, PHENYL ACRYLIC, AND CROTONIC ACIDS, AND (C) 15-65 PARTS OF AN ESTER OF AN ACID DEFINED IN (B) AND A 1-8 CARBON ATOM SATURATED ALIPHATIC MONOHYDRIC ALCOHOL, AND (4) AN INTERPOLYMER OF 100 PARTS BY WEIGHT OF A MIXTURE OF MONOMERS CONSISTING OF (A) 40-75 PARTS OF ACRYLONITRILE, (B) 2-15 PARTS OF AN ALPHA-OLEFINIC MONOCARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC, METHACRYLIC, ETHACRYLIC, PHENYL ACRYLIC, AND CROTONIC ACIDS, (C) 15-37.5 PARTS OF AN ESTER OF AN ACID DEFINED IN (B) AND A 1-8 CARBON ATOM SATURATED ALIPHATIC MONOHYDRIC ALCOHOL AND (D) 1-25 PARTS OF A GLYCIDOL DERIVATIVE SELECTED FROM THE GROUP CONSISTING OF ALLYL GLYCIDYL ETHER AND GLYCIDYL ESTERS OF THE ACIDS DEFINED IN (B).