Decorative adhesive sheet material with a chlorinated vinyl polymerpolyester resin blend primer

Claim 1

TRANSPARENT PRESSURE-SENSITIVE ADHESIVE SHEET MATERIAL HAVING ONE NON-ADHESIVE SURFACE, READILY SILK SCREENPRINTED WITH ACRYLIC PROCESS PASTES T PROVIDE A WEATHERRESISTANT TRANSLUCENT INSIGNIA, AND ONE ADHESIVE SURFACE, WHICH SHEET MATERIAL CAN BE ADHERED TO, AND AFTER A YEAR OR MORE OF OUTDOOR EXPOSURE REMOVED CLEANLY FROM, INTERNALLY ILLUMINATED TRANSLUCENT SIGNS, SAID SHEET MATERIAL COMPRISING IN COMBINATION: A BIAXIALLY ORIENTED POLYETHYLENE TEREPHTHALATE FILM BACKING HAVING FIRMLY BONDED OVER EACH MAJOR SURFACE A TRANSPARENT HOMOGENEOUS STRATUM CONSISTING ESSENTIALLY OF APPROXIMAELY EQUAL PARTS BY WEIGHT OF SOLUBLE CHLORINATED VINYL JKPOLYMER AND SOLUBLE COPOLYESTER POLYMER, SAID COPOLYESTER POLYMER HAVING AN INTRINSIC VISCOSITY OF AT LEAST ABOUT 0.3 AND CONTAINING SUBSTANTIALLY EQUAL NUMBERS OF ETHYLEE TEREPHTHALATE UNITS AND ETHYLENE ISOPHTHALATE UNITS, SAID BACKING HAVING A CLEAR NORMALLY TACKY AND JPRESSURE-SENSITIVE ADHESIVE FIRMLY ADHERED TO ONE OF SAID STRATA, SAID BACKING BEING PROVIDED, AT LEAST AT THE SURFACE OPPOSITE THAT OVER WHICH THE PRESSURE-SENSITIVE ADHESIVE IS ADHERED, WITH AN ULTRAVIOLET LIGHT-ABSORBNT MATERIAL.