Pressure sensitive adhesive tape

Claim 1

A NORMALLY TACKY AND PRESSURE-SENSITIVE ADHESIVE TAPE EXHIBITING EXCELLENT ADHESIVE CHARACTERISTICS AND RESISTANCE TO DESTRUCTION OF ITS PROPERTIES BY ESSENTIALLY ALIPHATTIC HYDROCARBON SOLVENTS COMPRISING A FLEXIBLE WEB COATED ON AT LEAST ONE MAJOR SURFACE THEREOF WITH A PRIMER COATING COMPRISING ABOUT 25 TO 75% BY WEIGHT OF AN ELASTOMERIC COMPONENT CONSISTING ESSENTIALLY OF AN ELASTOMERIC POLYMER ESSENTIALLY COMPOSED OF A POLYACRYLIC ACID ESTER OF AN ALIPHATIC ALCOHOL CONTAINING FROM 1 TO 4 CARBON ATOMS AND 75 TO 25% OF A COPOLYMER OF BUTADIENE AND ACRYLONITRILE HAVING AN ACRYLONITRILE CONTENT OF ABOUT 15 TO 40% BY WEIGHT OF THE COPOLYMER, AND A NORMALLY TACKY AND PRESSURE-SENSITIVE ADHESIVE COATED ON SAID PRIMER COATING COMPRISING AN ELEASOMERIC POLYMER ESSENTIALLY COMPOSED OF A POLYACRYLIC ACID ESTER OF AN ALIPHATIC ALCOHOL CONTAINING FROM 1 TO 4 CARBON ATOMS, AND A RESIN IN AN AMOUNT FROM ABOUT 10 TO ABOUT 200 PARTS BY WEIGHT PER 100 PARTS OF THE ELASTOMERIC POLYMER COMPRISING A CONDENSATE OF FORMALDEHYDE AND A MATERIAL SELECTED FROM THE GROUP CONSISTING OF ARYL SULFONAMIDES, PHENOLS, MELAMINE AND UREA, SAID RESIN EXHIBITING THE CHARACTERISTICS OF SUBSTANTIAL INSOLUBILITY IN WATER AND ALIPHATIC HYDROCARBON SOLVENTS AND COMPATIBILITY WITH THE ACRYLIC POLYMER.