Delamination treated pressure sensitive adhesive tape

Claim 1

A PAPER-BACKED NORMALLY TACKY AND PRESSURE-SENSITIVE ADHESIVE TAPE HAVING IMPROVED CHARACTERISTICS OF WET TENSILE STRENGTH AND DELIMINATION RESISTANCE COMPRISING A UNIFIED PAPER WEB INTERNALLY BONDED WITH A COMPOSITION COMPRISING BONDING PARTICLES INCLUDING AN ELASTOMERIC COPOLYMER CONTAINING AN ALDEHYDE RESIN REACTIVE N-CONTAINING COMONOMER SELECTED FROM THE GROUP CONSISTING OF UNSATURATED POLYMERIZABLE NITRILES, ACRYLAMIDES AND VINYL PYRIDINES AND A MINOR BUT EFFECTIVE AMOUNT OF A WATER-DISPERSIBLE, HEAT-REACTIVE, ALDEHYDE RESIN, SAID WEB HAVING AT LEAST ONE MAJOR SURFACE THEREOF COATED WITH A NORMALLY TACKY AND PRESSURE-SENSITIVE ADHESIVE, AND SAID INTERNALLY BONDED WEB HAVING INTERNAL STRENGTH SUFFICIENT TO RENDER IT IMMUNE TO SPLITTING AND DELAMINATION, WHEN IN A ROLL OF THE TAPE, IT IS SUBJECT TO THE FORCES EXERTED BY THE ADHESIVE OF AN OVERLYING PLY OF THE TAPE IN THE UNWINDING THEREOF.