US 11,981,110 B2
Multilayer film and method of forming the same
Rachel Morrison, Cambridge, MA (US); Gowri Dorairaju, Westford, MA (US); Sethumadhavan Ravichandran, Shrewsbury, MA (US); Vincent Prud'homme, Vernou-sur-Brenne (FR); Meghann White, Bedford, NH (US); and Michael A. Adamko, Morristown, NJ (US)
Assigned to SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION, Solon, OH (US)
Filed by SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION, Solon, OH (US)
Filed on Dec. 16, 2022, as Appl. No. 18/067,413.
Claims priority of provisional application 63/265,788, filed on Dec. 21, 2021.
Prior Publication US 2023/0191762 A1, Jun. 22, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 27/32 (2006.01); B32B 7/023 (2019.01); B32B 7/12 (2006.01); B32B 27/36 (2006.01)
CPC B32B 27/322 (2013.01) [B32B 7/023 (2019.01); B32B 7/12 (2013.01); B32B 27/36 (2013.01); B32B 2250/02 (2013.01); B32B 2250/24 (2013.01); B32B 2307/40 (2013.01); B32B 2405/00 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A multilayer film comprising:
a fluoropolymer based layer, and
an adhesive layer in contact with the fluoropolymer based layer,
wherein the fluoropolymer based layer comprises a fluoropolymer based material,
wherein the adhesive layer comprises a first adhesive layer ultra violet (UV) absorber component,
wherein the multilayer film comprises a lower ultra-violet light transmission (L-UVLT) of not greater than 1.0%, where the L-UVLT of the multilayer film is defined as the percent transmission between 200 nm and 360 nm,
wherein the multilayer film comprises a high ultra-violet light transmission (H-UVLT) of not greater than 5.0%, where the H-UVLT of the multilayer film is defined as the percent transmission between 360 nm and 380 nm, and
wherein the multilayer film comprises a visual light transmission (VLT) of at least about 50.0%, where the VLT of the multilayer film is defined as the percent transmission between 400 nm and 1100 nm.