Polyester film with a nodule surface

Details Polyester film with a nodule surface Polyester film with a nodule surface

B - Operations, Transporting

05

D

117/62, 204/96.2

B05D 3/14 (2006.01) C08J 7/04 (2006.01) C09D 133/12 (2006.01)

Patent

CA 2029825

POLYESTER FILM WITH A NODULE SURFACE ABSTRACT A polyester film having a nodule surface is disclosed. The acrylic coating is preferably a crosslinked composition having a relatively high methyl methacrylate content and specific surfactants. The acrylic coating composition is applied as an aqueous dispersion to polyester film, preferably after corona treatment of the polyester film. The nodule surface reduces the coefficient of friction of the polyester film. The coating composition comprises from 60 to 90 mole percent methyl methacrylate; from 10 to 35 mole percent of at least one modifier selected from the group of ethyl acrylate, propyl acrylate, butyl acrylate, and mixtures of these; and from 3 to 10 mole percent of a crosslinkable monomer or a self-crosslinking monomer selected from the group of N-methylol methacrylamide, N-methylol acrylamide, acrylamide, methacrylamide, and mixtures of these; with from 2 to 15 weight percent of the nonionic surfactant and at least 0.1 percent by weight of the anionic surfactant.

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