公开(公告)号：US20220118742A1

公开(公告)日：2022-04-21

申请号：US17562167

申请日：2021-12-27

Applicant: AGC Inc.

Inventor： Wataru KASAI ,  Yuya HORIGUCHI ,  Seigo KOTERA ,  Tomoya HOSODA

IPC: B32B15/082 ,  B32B27/32 ,  B32B27/30 ,  C08J5/18

Abstract: As an exemplary configuration, a long film is configured by thermomeltable polymers including a first unit based on tetrafluoroethylene and a second unit based on perfluoro (alkyl vinyl ether), including spherulites of the thermomeltable polymers, wherein radius of each spherulite is 10 μm or less. As another exemplary configuration, a long film is configured by tetrafluoroethylene polymers having a melt flow rate within a range of 5 to 40 g/10 min. The long film is heated at 180° C. for 30 minutes so as to measure the thermal expansion rate, and when letting thermal expansion rate in a first direction, which extends at a 45-degree angle to a melt flow direction be A, and thermal expansion rate in a second direction orthogonal to the first direction be B, A and B are respectively within the range of −2 to +1%, and |A−B| is 1% or less.

公开(公告)号：US20230065010A1

公开(公告)日：2023-03-02

申请号：US18047721

申请日：2022-10-19

Applicant: AGC INC.

Inventor： Hiroshi ARUGA ,  Yoshiaki HIGUCHI ,  Yuya HORIGUCHI ,  Junetsu NAKAMURA

IPC: B29C48/88 ,  B29C48/00 ,  B29C48/08 ,  C08J5/18 ,  C08F214/24

Abstract: A film includes a copolymer having a tetrafluoroethylene-based unit and an ethylene-based unit, in which the film has a haze of from 1.2% to 8.0%, an ultraviolet reflectance of less than 17.0%, and a thickness of from 250 to 400 μm.