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：US11524439B2

公开(公告)日：2022-12-13

申请号：US17070999

申请日：2020-10-15

Applicant: AGC Inc.

Inventor： Yoshiaki Higuchi ,  Shintaro Fukunaga ,  Takatoshi Yaoita

IPC: B29C48/08 ,  B29C48/88 ,  B32B27/08 ,  B32B27/30

Abstract: To provide a process for producing a film excellent in water vapor barrier property, tensile elongations, and transparency. A resin material containing polychlorotrifluoroethylene (PCTFE) is melted and extruded into a film from an extrusion die, the extruded product is brought into contact with a cooling roll having a surface temperature of at most 120° C. in a state such that the surface temperature of the extruded product is higher than the crystallization temperature of PCTFE to form a film web, and the film web is subjected to heat treatment at from 80 to 200° C. to obtain a film.

公开(公告)号：US20210023756A1

公开(公告)日：2021-01-28

申请号：US17070990

申请日：2020-10-15

Applicant: AGC Inc.

Inventor： Yoshiaki Higuchi ,  Shintaro Fukunaga ,  Takatoshi Yaoita

IPC: B29C48/08 ,  B29C48/00 ,  B29C48/92 ,  B32B27/30

Abstract: To provide a film made of polychlorotrifluoroethylene (PCTFE), of which a laminate with other layer is less likely to curl when subjected to drawing.
A film comprising PCTFE, having thermal shrinkage rates within ±1.2% in MD and in TD when heated at 140° C. for 30 minutes and then cooled to 25° C., based on the dimension at 25° C.

公开(公告)号：US10807776B2

公开(公告)日：2020-10-20

申请号：US15909385

申请日：2018-03-01

Applicant: AGC Inc.

Inventor： Daisuke Taguchi ,  Wataru Kasai ,  Yoshiaki Higuchi

IPC: B65D59/02 ,  C08J5/18 ,  B65D39/00 ,  C09D123/08 ,  C08F214/26 ,  C08F210/02 ,  C08L23/08 ,  C08L27/18 ,  G01N25/48

Abstract: To provide a resin film which comprises an ethylene/tetrafluoroethylene copolymer and which is to be used as, for example, a rubber plug lamination film to prevent breakage at the time of producing a laminated rubber plug. The resin film comprises an ethylene/tetrafluoroethylene copolymer and is characterized in that the product of the value of the endothermic peak height ΔH (mW/mg) obtained by its DSC-analysis and the haze (%) measured at a thickness of 100 μm, is from 0.1 to 0.2 (mW/mg·%).

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.

公开(公告)号：US10252455B2

公开(公告)日：2019-04-09

申请号：US15419265

申请日：2017-01-30

Applicant: AGC Inc.

Inventor： Hiroshi Aruga ,  Tetsuya Hasegawa ,  Sho Masuda ,  Yoshiaki Higuchi

IPC: B29C47/00 ,  C08J5/18 ,  B29C43/46 ,  B29C47/88 ,  B29C43/24 ,  B29C43/00 ,  B29K27/12 ,  B29K105/00 ,  B29L7/00 ,  B29L31/00 ,  B29C47/14 ,  B29C47/40

Abstract: An ethylene/tetrafluoroethylene copolymer sheet obtained by extrusion, has R0/d, wherein R0 is an in-plane phase difference [unit: nm]and d is a thickness, [unit: nm], of at most 3.0×10−3, and a thickness of more than 300 μm. The ethylene/tetrafluoroethylene copolymer sheet preferably has a thickness of from 305 to 3,000 μm . A process for producing an ethylene/tetrafluoroethylene copolymer sheet includes melting an ethylene/tetrafluoroethylene copolymer to obtain a melt, continuously extruding the melt through a die for shaping the melt to a sheet, and letting the sheet pass between two rolls. One of the two rolls is a rigid roll, and the other is an elastic roll. The two rolls are pressed under a linear pressure of from 0.1 to 1,000 N/cm.