Adhesion of ethylene-propylene-diene terpolymer rubber to textiles

Claim 1

A PNEUMATIC TIRE HAVING A CARCASS COMPRISING AN ELASTOMERIC VULCANIZATE IN WHICH THE ELASTOMER CONSISTS ESSENTIALLY OF ETHYLENE-PROPYLENE-COPOLYMERIZABLE DIENE TERPOLYMER WHEREIN THE SAID DIENE IS SELECTED FROM 1,4-HEXADIENE AND DICYCLOPENTADIENE, SAID VULCANIZATE BEING REINFORCED WITH TEXTILE CORD ADHRED TO THE VULCANIZATE BY MEANS OF AN ADHENSIVE DEPOSIT ON THE CORD APPLIED PRIOR TO ASSEMBLY WITH THE SAID TERPOLYMER FROM AN AQUEOUS SOLUTION CONTAINING A RUBBER LATEX, SELECTED FROM BUTADIENE-VINYL-PYRIDINE COPOLYMER LATEX AND BUTADIENE-STYRENE-VINYL-PYRIDINE COPOLYMER LATEX, AND A WATER SOLUBLE RESORCINOL-FORMALDEHYDE RESIN HAVING A BALL AND RING SOFTENING POINT OF 102*-112*C. AND A MOLE RATIO OR FORMALDEHYDE TO RESORCINOL OF FROM 1.0:2 TO 1.8:2, THE ADHESIVE SOLUTION FURTHER CONTAINING FROM 5 TO 30 PARTS BY WEIGHT OF ADDED FORMALDEHYDE PER 100 PARTS OF SAID RESIN, THE WEIGHT RATIO OF SAID RUBBER TO RESIN IN THE ADHESIVE BEING FROM 0.6:1 TO 4:1, AND THE PICK-UP OF ADHESIVE SOLIDS ON THE CORD BEING FROM 0.1 TO 4% BY WEIGHT OF THE CORD.