US 12,129,938 B2
Tube and method for making same
Qiaoxi Li, Waltham, MA (US); Jessica Kenepp, Akron, OH (US); James Ludlow, Medina, OH (US); Cody Gleason, Solon, OH (US); Gayla Lyon, West Boylston, MA (US); and Jiezhu Jin, Westborough, MA (US)
Assigned to SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION, Solon, OH (US)
Filed by SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION, Solon, OH (US)
Filed on Aug. 30, 2022, as Appl. No. 17/823,266.
Claims priority of provisional application 63/260,766, filed on Aug. 31, 2021.
Prior Publication US 2023/0129125 A1, Apr. 27, 2023
Int. Cl. F16L 11/12 (2006.01); F16L 11/04 (2006.01)
CPC F16L 11/12 (2013.01) [F16L 11/04 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A multilayer tube comprises:
an inner layer comprising a polymer comprising a fluoropolymer, a polyolefin, a blend thereof, or combination thereof; and
an outer layer adjacent to the inner layer, wherein the outer layer comprises a polymer comprising a fluoropolymer, a polyolefin, a blend thereof, or combination thereof; wherein the inner layer, the outer layer, or combination thereof comprises at least one blocking agent, wherein the at least one blocking agent reduces the percent transmission of ultraviolet and visible light by at least 99% at wavelengths between 240 nm to 450 nm and wherein the multilayer tube has a maximum force to bend of less than 10 Newtons.