POLYESTER FILM PRIMED WITH CROSSLINKED ACRYLIC POLYMERS

摘要

Prepn. of an oriented self-supporting polyester film comprises melt extruding a substantially amorphous polyester film comprising a mixt. of fresh polyester and primer coated reclaim polyester, and stretching to original dimensions, then heattreating. The primer coated reclaim polyester is comminution prod. of primer coated oriented polyester film with continuous crosslinked acrylic coating on at least one side. The acrylic coating consists of copolymer of at least 50 wt.% polymd. acrylic and/or methacrylic monomers, 1-15 wt.% copolymd. functional gp. -contg. copolymer capable of inter- molecular crosslinking, and 0-49 wt.% of at least one halogen free monoethylenically unsatd. copolymd. monomers.