White, uv-stabilized thermoformable film made from a crystallizable thermoplast, method for producing the same and its use
AssigneeMitsubishi Polyester Film GmbH
InventorsUrsula Murschall, Klaus Oberlaender, Guenther Crass, Ulrich Kern
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Abstract
The invention relates to a white film with a thickness in the range of 1 to 500 μm that contains a crystallizable thermoplast as the main component. The inventive film is further characterized in that it contains at least one UV stabilizer as the light stabilizer and at least one white pigment. The invention further relates to a method for producing said film and the use thereof.
Claims22
A white, thermoformable film in which the principal constituent present is a crystallizable thermoplastic, wherein the film comprises at least one white pigment and at least one UV stabilizer as light stabilizer, where the UV stabilizer and the white pigment are expediently fed directly as a masterbatch during the production of the film.
The film as claimed in claim 1 or 2, wherein the crystallizable thermoplastic has a diethylene glycol content of ≧1.0% by weight, preferably ≧1.2% by weight, in particular >1-3% by weight, and/or a polyethylene glycol content of ≧1.0% by weight, preferably ≧1.2% by weight, in particular ≧1.33% by weight, and/or an isophthalic acid content of from 3.0 to 10.0% by weight.
Dependencies are inferred from the claim text.