Paper products coated with vinyl resin and wax

Claim 1

A PROCESS FOR THE COATING OF A BASE MATERIAL COMPRISING THE STEPS OF (1) COATING THE BASE MATERIAL WITH AN AQUEOUS EMULSION-DISPERSION OF (A) A RESIN SELECTED FROM THE GROUP CONSISTING OF POLYMERS FROMED FROM MONOMERS CONTAINING A VINYL GROUP AND COPOLYMERS FORMED PREDOMINANTLY FROM MONOMERS CONTAINING AVIINYL GROUP; SAID VINYL MONOMERS INCLUDING A CHLOROETHYLENE HAVING FROM ONE TO TWO CHLORINE ATOMS ON ONLY ONE OF ITS CARBON ATOMS, (B) WAX HAVING A MELTING POINT OF AT LEAST ABOUT 150 DEGREES FAHRENHEIT, AND (C) A POLYSILOXANE ANTIBLOCKING AGENT WHICH IS WAX COMPATIBLE AND POLYVINYL RESIN INCOMPATIBLE, (2) SUBJECTING THE COATED PRODUCT TO A DYING STEP AT A TEMPERATURE AND FOR A PERIOD OF TIME SUFFICIENT TO REMOVE AT LEAST SOME AND UP TO ABOUT ONE-HALF THE MOISTURE IN THE COATED PRODUCT AND DRAW THE WAX AND ANTIBLOCKING AGENT TO THE SURFACE OF THE COATING WITHOUT FUSING OF THE POLYVINYL RESIN LAYER AS AN INTEGRAL FILM TO THE SURFACE OF THE BASE MATERIAL, (3) SUBSTANTIALLY IMMEDIATELY SUBJECTING THE THUS-COATED PRODUCT OF REDUCED MOISTURE CONTENT TO A BAKING STEP AT AN INCREASED TEMPERATURE AND FOR A PERIOD OF TIME SUFFICIENT TO FUSE THE POLYVINYL RESING AS AN INTEGRAL FILM TO THE SURFACE OF THE BASE MATERIAL AND FURTHER REDUCE THE MOSITURE CONTENT OF THE THUS-COATED PRODUCT TO NOT GREATER THAN ABOUT THEN PERCENT, WHEREBY TWO FILMS ARE FORMED ON THE SURFACE OF THE PRODUCT, AN OUTER FILM OF WAX AND ANTIBLOCKING AGENT AND AN INNER FILM OF POLYVINYL RESIN, AND (4) COOLING THE THUSCOATED PRODUCT TO SET THE COATING ON THE SURFACE THEREOF.