Transparent fluoropolymer films
AssigneeE. I. Du Pont de Nemours and Company
InventorMichael T Demko
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Abstract
In a first aspect, a transparent fluoropolymer film includes, a vinyl fluoride polymer, 2 to 8 wt % of an acrylate polymer, and 0.1 to 4 wt % of a triazine UV absorber. After heating at 100° C. for 96 hours, the transparent fluoropolymer film has a 340 nm absorbance of at least 1.5. In a second aspect, a transparent multilayer film includes a polymeric substrate film and a fluoropolymer film. The fluoropolymer film includes a vinyl fluoride polymer, 2 to 8 wt % of an acrylate polymer and 0.1 to 4 wt % of a triazine UV absorber. After heating at 100° C. for 96 hours, the transparent fluoropolymer film has a 340 nm absorbance of at least 1.5.
Claims21
A transparent fluoropolymer film comprising:
- a vinyl fluoride polymer;
- 2 to 8 wt % of an acrylate polymer;
- and
- 0.1 to 4 wt % of a triazine UV absorber, wherein after heating at 100° C. for 96 hours, the transparent fluoropolymer film has a 340 nm absorbance of at least 1.5.
A transparent multilayer film comprising a polymeric substrate film and a fluoropolymer film, wherein the fluoropolymer film comprises:
- a vinyl fluoride polymer;
- 2 to 8 wt % of an acrylate polymer;
- and
- 0.1 to 4 wt % of a triazine UV absorber, wherein after heating at 100° C. for 96 hours, the transparent fluoropolymer film has a 340 nm absorbance of at least 1.5.
An article comprising a substrate and a transparent fluoropolymer film, wherein the substrate comprises a material selected from the group consisting of plastics, metals and woods, and the transparent fluoropolymer film comprises:
- a vinyl fluoride polymer;
- 2 to 8 wt % of an acrylate polymer;
- and
- 0.1 to 4 wt % of a triazine UV absorber, wherein after heating at 100° C. for 96 hours, the transparent fluoropolymer film has a 340 nm absorbance of at least 1.5.
Dependencies are inferred from the claim text.