公开(公告)号：US12083767B2

公开(公告)日：2024-09-10

申请号：US17562167

申请日：2021-12-27

Applicant: AGC Inc.

Inventor： Wataru Kasai ,  Yuya Horiguchi ,  Seigo Kotera ,  Tomoya Hosoda

IPC: B32B9/00 ,  B32B15/082 ,  B32B27/30 ,  B32B27/32 ,  C08J5/18

CPC classification number: B32B15/082 ,  B32B27/30 ,  B32B27/322 ,  C08J5/18 ,  B32B2264/0228 ,  B32B2264/0257 ,  B32B2264/202 ,  B32B2264/303 ,  C08J2327/18 ,  C08J2427/12

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：US11565510B2

公开(公告)日：2023-01-31

申请号：US15707327

申请日：2017-09-18

Applicant: AGC Inc.

Inventor： Yoshiaki Higuchi ,  Seigo Kotera

IPC: B65D65/40 ,  H01M50/116 ,  H01M50/124 ,  B32B27/30 ,  B32B27/34 ,  B65D81/24 ,  B32B27/08 ,  B32B15/20 ,  B32B15/18 ,  B32B27/32 ,  B32B7/12 ,  B32B15/08 ,  H01M10/0525

Abstract: To provide a laminate which has a heat sealing property, a barrier property and mechanical strength, of which elution of impurities from the surface to be in contact with a chemical solution is suppressed, and of which peeling and the like hardly occur at the sealed portion of a bag and at the interfaces between the layers of the laminate when exposed to high temperature, a bag using it and a lithium ion battery.
A laminate 10 comprising a first layer 12 containing a fluororesin, a second layer 14 containing a barrier material, a third layer 16 containing a fluororesin and a fourth layer 18 containing a polyamide in this order, wherein each of the fluororesin in the first layer 12 and the fluororesin in the third layer 16 is a fluororesin having a melting point of from 160 to 230° C. and having adhesive functional groups.

公开(公告)号：US11318641B2

公开(公告)日：2022-05-03

申请号：US16822110

申请日：2020-03-18

Applicant: AGC Inc.

Inventor： Seigo Kotera

IPC: B29C33/68 ,  B29C45/14 ,  B32B27/08 ,  B32B27/32 ,  B32B27/34 ,  H01L21/56 ,  B29L31/34

Abstract: To provide a film capable of suppressing both of formation of wrinkles when a release film is suction-attached to a cavity surface in compression molding, and formation of wrinkles when the cavity bottom surface to which the release film has been suction-attached is raised; and a method for producing a semiconductor element by using said film. A laminated film 1 comprises a layer 3 of shrinkable film, of which the storage elastic modulus E′ at 180° C. is at least 70 MPa, and the thermal shrinkage in 30 minutes at 180° C., with reference to 20° C., in each of the machine direction (MD) and the transverse direction (TD), is at least 3%, and a fluororesin layer 5 present on one side or both sides of the shrinkable film layer 3.

公开(公告)号：US10730219B2

公开(公告)日：2020-08-04

申请号：US15786787

申请日：2017-10-18

Applicant: AGC Inc.

Inventor： Yoshiaki Higuchi ,  Seigo Kotera

IPC: B29C48/08 ,  B29C48/30 ,  B29C48/305 ,  B29C48/25 ,  C08F214/26 ,  B29C48/92 ,  C08F214/18 ,  B29K27/12 ,  B29L7/00 ,  B29C48/88 ,  B29C48/00

Abstract: To provide a method for producing a fluororesin film, whereby defects due to deterioration (such as fish-eyes due to gelation) of a melt-processable fluororesin are less likely to occur during the production. A method for producing a fluororesin film, which comprises extruding a fluororesin material containing a melt-processable fluororesin through an extruder die, wherein the temperature of the extruder die is from 305 to 355° C., and the average flow velocity v0.95 of the fluororesin material as obtained by v0.95=Q0.95/A0.95, is at least 1×10−4 m/sec. Here, when the distance from the flow inlet 22 of the extruder die to the end of the manifold 24 of the extruder die is set to be x=1, Q0.95 is the flow rate (m3/sec) of the fluororesin material flowing in the manifold 24 at a position of x=0.95 from the flow inlet 22, and A0.95 is the cross-sectional area (m2) of the manifold 24 at a position of x=0.95 from the flow inlet 22.