Michael T Demko

US Patent:

20190359783, Nov 28, 2019

Filed:

May 9, 2019

Appl. No.:

16/407800

Inventors:

- Wilmington DE, US
Michael T. Demko - Bear DE, US

International Classification:

C08J 5/18
C08L 27/14
C08L 33/12
C08K 5/3492
C08K 5/00
C08K 5/3435
B32B 27/30
B32B 7/10

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.