Process for the production of selfadhesive sheets or tapes

Claim 1

THE METHOD OF COATING A FLEXIBLE FOIL TYPE BASE OF ORGANIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF HYDROPHOBIC AND HYDROPHILIC NATURAL RESINS, MODIFIED NATURAL RESINS, AND SYNTHETIC RESINS, SAID BASE HAVING AT LEAST ONE SMOOTH SURFACE, COMPRISING COATING SAID SMOOTH SURFACE WITH A SOLUTION CONSISTING ESSENTIALLY OF, A MIXTURE OF 20 TO 90 PERCENT BY WEIGHT OF POLYVINYL ETHERS SELECTED FROM THE GROUP CONSISTING OF POLYVINYL METHYL ETHER, POLYVINYL ETHYL ETHER, POLYVINYL BUTYL ETHER AND POLYVINYL DECYL ETHER AND MIXTURES THEREOF AND 10 TO 80 PERCENT BY WEIGHT OF A COPOLYMER OF ACRYLONITRILE AND A SUBSTANCE COPOLYMERIZABLE THEREWITH SELECTED FROM THE GROUP CONSISTING OF STYRENE, BUTADIENE, VINYL EHTER, ACRYLIC SAID ESTERS AND METHACRYLIC ACID ESTERS AND MIXTURES THEREOF IN AN ORGANIC SOLVENT THEREFOR, DRYING SAID INTERMEDIATE LAYER, AND THEREAFTER COATING SAID INTERMEDIATE LAYER WITH A PRESSURE ADHESIVE.