G - Physics – 03 – C
Patent
G - Physics
03
C
96/24, 18/764
G03C 1/93 (2006.01) B44D 3/18 (2006.01) C08J 7/04 (2006.01) C08J 11/06 (2006.01)
Patent
CA 1222114
ABSTRACT OF THE INVENTION A prime coated oriented polyester film material is disclosed wherein the primer coating consists essentially of a crosslinked copolymer containing at least one 50% by weight of acrylic and/or methacrylic monomers and from about 1% to 15% by weight of a comonomer capable of inter-molecular crosslinking upon the application of heat, and from 0 about 49% by weight of one or more halogen-free mono-ethylenically unsaturated monomers copolymerizable therewith. The priming layer may be applied to the polyester film at any suitable stage during manufacture of the film, i.e., before or during the stretching operations, and is crosslinked after application by means of heat. The resultant primed polyester film is found to provide excellent adhesion to many organic solvent based coatings subsequently applied thereto, and to be reclaimable when reprocessed during the manufacture of polyester film without giving rise to significant or intolerable discoloration or degradation of the film.
468572
Culbertson Edwin C.
Farrar Grover L.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Mitsubishi Polyester Film Llc
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