Process for coating paper using a polyimine precoat and products thereof

Claim 1

A COMPOSITE STRUCTURE WHICH COMPRISES, IN INTIMATE JOINED LAMINATION, A SUBSTRATE LAYER OF PACKAGEING WEIGHT PAPER, AN INTERMEDIATE ADHESION PROMOTING LAYER OF BETWEEN ABOUT 0.001-1.0 LB. PER 3000 SQ. FT. OF SAID SUBSTRATE SURFACE OF A POLYIMINE HAVING A MONOMERIC UNIT STRUCTURAL FORMULA OF -C(-R1)(-R2)-C(-R3)(-R4)-N(-R5)WHEREIN R1 THROUGH R4 ARE EACH SELECTED FROM THE CLASS CONSISTING OF HYDROGEN AND LOWER ALKYL GROUPS, R5 IS SELECTED FROM THE CLASS CONSISTING OF HYDROGEN, LOWER ALKYL GROUP, HYDROXY SUBSTITUTED LOWER ALKYL GROUPS, LOWER ALKYL ALKOXY GROUPS AND FATTY ACID RESIDUE FROM THE REACTION OF A FATTY ACID WITHTHE IMINE,SAID POLYIMINE HAVING A MOLECULAR WEIGHT IN EXCESS OF ABOUT 800, AND A TIGHTLY ADHERED LAYER OVER SAID APPLIED COATING OF POLYIMINE OF AN EXTRUDED FILM HAVING A THICKNESS FROM ABOUT 0.2-1 MIL, SAID FILM BEING A MEMBER OF THE CLASS CONSISTIG OF POLYETHYLENE, POLYPROPYLENE, COPOLYMERS OF ETHYLENE AND PROPYLENE, ETHYLENE AND VINYL ACETATE, ETHYLENE AND VINYL CHLORIDE, ETHYLENE AND METHYLMETHACRYLATE, ETHYLENE AND TETRAFLUORETHYLENE, ETHYLEN AND BUTENE-1, PROPYLENE AND VINYL ACETATE, PROPYLENE AND VINYL CHLORIDE, PROPYLENE AND METHYLMETHACRYLATE, PROPYLENE AND TETRAFLUOROETHYLENE AND PROPYLENE AND BUTENE-1, WHEREIN ALL OF SAID COPOLYMERS HAVE A PREDOMINANT QUANTITY OF OLEFINIC MONOMER, SAID FILM HAVING BEEN EXTRUDED ONTO SAID SUBSTRATE AT A TEMPERATURE TAKEN AT THE ADAPTER OR DIE LANDS OF THE EXTRUDER OF FROM ABOUT 555 TO 625*F. WHIE SAID SUBSTRATE IS MOVING AT A RATE OF FROM ABOUT 350 TO 1500 FT./MIN.