Overlaminate films and graphic articles containing them

摘要

Multilayer graphic articles include a graphic substrate, and an overlaminate film laminated to the graphic substrate. The overlaminate film includes a transparent film layer with a fluorochemical-containing acid-resistant layer coated on at least a portion of one surface, and an adhesive layer coated on at least a portion of the opposite surface of the transparent film. The transparent film layer may be a vinyl film layer. The acid resistant layer includes a blend of at least one fluoropolymer and at least one acrylate resin.

主权项

1. An article comprising:
a graphic substrate; and an overlaminate film laminated to the graphic substrate, the overlaminate film comprising:
a transparent film layer comprising a vinyl film layer, wherein the vinyl film layer comprises polyvinyl chloride, a blend containing polyvinyl chloride, or plasticizedpolyvinyl chloride and having a first major surface and a second major surface;a fluorochemical-containing acid-resistant layer coated on at least a portion of the first major surface of the transparent film layer, wherein the fluorochemical-containing acid resistant layer comprises a blend of at least one fluoropolymer and at least one acrylate resin; anda pressure sensitive adhesive layer directly coated on at least a portion of the second major surface of the transparent film layer, wherein the overlaminate film has an elongation at room temperature of at least 50%; and wherein the fluorochemical-containing acid resistant layer comprises:
15-60 weight % of the at least one fluoropolymer comprising a copolymer of 40-80 weight % vinylidene fluoride and 20-60 weight % of at least one copolymerizable fluoromonomer; and40-85 weight % of the at least one acrylate resin comprising 80-100 weight % methyl methacrylate and 0-20 weight % of at least one copolymerizable vinyl monomer.