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公开(公告)号：US10079378B2
公开(公告)日：2018-09-18
申请号：US15312558
申请日：2015-05-28
Applicant: TORAY INDUSTRIES, INC.
Inventor： Tomiko Matsumoto , Masami Sugata , Koichi Kono
IPC: H01M2/16 , H01M2/14 , B01D67/00 , B01D69/02 , B01D71/26 , B29C47/00 , B29C47/16 , B29C47/60 , B29C47/88 , B29C55/00 , B29C55/14 , C08J5/18 , C08J9/28 , C08L23/06 , B29C47/40 , B29L31/34 , B29K23/00 , B29K105/04
CPC classification number: H01M2/1653 , B01D67/002 , B01D67/0027 , B01D69/02 , B01D71/26 , B01D2325/20 , B01D2325/22 , B01D2325/24 , B01D2325/34 , B29C48/0018 , B29C48/08 , B29C48/30 , B29C48/31 , B29C48/40 , B29C48/625 , B29C48/914 , B29C55/005 , B29C55/143 , B29K2023/0683 , B29K2105/041 , B29K2995/0065 , B29L2031/3468 , C08J5/18 , C08J9/28 , C08J2201/0482 , C08J2205/044 , C08J2323/06 , C08J2423/06 , C08L23/06 , C08L2207/068 , H01M2/145
Abstract: A polyolefin microporous membrane is disclosed. The membrane includes at least one microporous membrane layer, where the microporous membrane layer has an air permeability between about 100 sec/100 cc and about 220 sec/100 cc, a pin puncture strength of at least 550 gf, and a crystallization half time t1/2 of from 10 to 35 minutes when subjected to isothermal crystallization at 117° C. The air permeability and the pin puncture strength are normalized to a thickness of 16 μm.
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公开(公告)号：US20180036933A1
公开(公告)日：2018-02-08
申请号：US15551543
申请日：2016-01-22
Applicant: Toray Industries, Inc.
Inventor： Takashi Ichinomiya , Masami Sugata
CPC classification number: B29C48/30 , B29C48/08 , B29C48/305 , B29C48/88 , B29C48/914 , B29C55/02 , B29C55/12 , B29C55/18 , B29C67/20 , C08J9/00 , C08J9/28 , H01M2/16
Abstract: A method of producing a microporous plastic film including kneading a diluent and a polyolefin resin with an extruder; discharging the polyolefin resin kneaded with the diluent from a die lip in a sheet shape; cooling and solidifying the sheet discharged from the die lip on a drum; reheating and drawing the solidified sheet with a plurality of rollers in a sheet conveying direction; cooling the sheet drawn in the sheet conveying direction; gripping both ends of the sheet with clips; introducing the sheet into a tenter; washing the diluent out to prepare a uniaxially or biaxially oriented microporous plastic film; and pressing the sheet interposing between a nip roller having a surface coated with a rubber and a driving roller driven by a motor upstream from a roller at the most downstream side among the rollers.
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公开(公告)号：US20180036930A1
公开(公告)日：2018-02-08
申请号：US15551615
申请日：2016-01-22
Applicant: Toray Industries, Inc.
Inventor： Takashi Ichinomiya , Masami Sugata
CPC classification number: B29C48/022 , B29C48/0018 , B29C48/08 , B29C48/10 , B29C48/30 , B29C48/305 , B29C48/88 , B29C48/91 , B29C48/914 , B29C48/919 , B29C55/02 , B29C55/12 , B29C55/18 , B29C67/20 , B29K2105/0002 , B29K2105/041 , B29L2007/008 , C08J9/00 , C08J9/28 , H01M2/145 , H01M2/16 , H01M2/1653
Abstract: A method of producing a microporous film includes kneading a diluent and a polyolefin resin with an extruder; discharging the polyolefin resin kneaded with the diluent from a die lip in a sheet shape; cooling and solidifying the sheet discharged from the die lip on a drum; reheating and drawing the solidified sheet with a plurality of rollers in a sheet conveying direction; cooling the sheet drawn in the sheet conveying direction; gripping both ends of the sheet with clips; introducing the sheet into a tenter; washing the diluent out to prepare a uniaxially or biaxially oriented microporous plastic film, wherein drawing is performed by a draw ratio greatest among drawing in the sheet conveying direction, and a ratio of travelling speed of the clip of the tenter at a most upstream side in the sheet conveying direction to a peripheral speed of the roller (B) is −3% to +3%.
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14.发明申请BIAXIALLY STRETCHED POLYPROPYLENE FILM FOR CAPACITORS, METALLIZED FILM, AND FILM CAPACITOR 有权用于电容器，金属膜和薄膜电容器的双向拉伸聚丙烯膜公开(公告)号：US20150050456A1
公开(公告)日：2015-02-19
申请号：US14387119
申请日：2013-03-15
Applicant: Toray Industries, Inc.
Inventor： Takanori Nakatsuka , Tetsuya Asano , Masami Sugata
IPC: H01G4/18
CPC classification number: H01G4/18 , B29C55/143 , B29K2023/10 , B29K2995/0006 , C08J5/18 , C08J2323/10 , H01G4/015 , Y10T428/24355
Abstract: A biaxially stretched polypropylene film for capacitors which has protrusions on both sides and has a thickness (t1 [μm]) of 1 μm to 3 μm, wherein Formulae (1) to (4) are satisfied by an A-side as one film surface and a B-side as another film surface: |Pa−Pb|≧200; (1) 0.350≦Pa/SRzA≦0.700; (2) 500 nm≦SRzA≦1,200 nm; (3) 50 nm≦SRzB≦500 nm; (4) wherein, in Formulae (1) to (4), Pa is a number per 0.1 mm2 of protrusions on the A-side, Pb is a number per 0.1 mm2 of protrusions on the B-side, SRzA is a ten-point average roughness of the A-side, and SRzB is a ten-point average roughness of the B-side.
Abstract translation: 一种用于电容器的双轴拉伸聚丙烯薄膜，其在两侧具有突起并且具有1μm至3μm的厚度（t1 [μm]），其中式（1）至（4）由A侧作为一个薄膜表面 和B面作为另一个膜表面：| Pa-Pb |≥200; （1）0.350＆nlE; Pa / SRzA＆nlE; 0.700; （2）500nm＆amp; NlE; SRzA＆amp; 1200; 1200nm; （3）50nm＆nlE; SRzB＆amp; 500nm; （4）其中，在式（1）〜（4）中，Pa为A侧的每0.1mm 2的突起数，Pb为B侧的每0.1mm2的突起数，SRzA为十 A侧的点平均粗糙度，SRzB是B侧的十点平均粗糙度。
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公开(公告)号：US10978721B2
公开(公告)日：2021-04-13
申请号：US16065374
申请日：2016-11-14
Applicant: Toray Industries, Inc.
Inventor： Naoki Mizuno , Masami Sugata
IPC: H01M50/40 , B32B5/32 , C08J9/28 , C09D127/16 , H01M50/409 , B29C55/14 , H01M50/403 , B29C48/00 , H01M50/446 , H01M50/411 , H01M50/449 , H01M8/0239 , C08L23/06 , C08L27/16 , C08L27/20 , H01M10/0525
Abstract: A battery separator includes a polyolefin microporous membrane and a porous layer placed on at least one surface of the polyolefin microporous membrane. The polyolefin microporous membrane has a variation range of an F25 value in a longitudinal direction of 1 MPa or less. The F25 value indicates a value obtained by dividing a load value measured at 25% elongation of a specimen with use of a tensile tester by a cross-sectional area of the specimen. The porous layer contains a fluorine-based resin and an inorganic particle and has an average thickness T(ave) of 1 to 5 μm.
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Patent Agency Ranking
16.发明授权公开(公告)号：US10790492B2
公开(公告)日：2020-09-29
申请号：US16096860
申请日：2017-03-01
Applicant: Toray Industries, Inc.
Inventor： Naoki Mizuno , Masami Sugata
IPC: H01M2/16 , H01M2/14 , B29C55/14 , C08J7/04 , C08J9/28 , H01G11/52 , B29D7/01 , C08J5/22 , B29L31/34 , B29K105/04 , B29L7/00
Abstract: A polyolefin microporous membrane has a variation range of F25 value in a longitudinal direction of 1 MPa or less; a thickness of 3 μm or more and less than 7 μm; and a length of 1,000 m or more (wherein the F25 value is a value obtained by measuring a load value applied to a test specimen when the test specimen is stretched by 25% using a tensile tester; and dividing the load value by a value of a cross-sectional area of a test specimen).
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公开(公告)号：US10784482B2
公开(公告)日：2020-09-22
申请号：US15531807
申请日：2015-11-05
Applicant: Toray Industries, Inc.
Inventor： Naoki Mizuno , Masami Sugata
IPC: H01M2/16 , B32B5/32 , C08J9/28 , B32B27/32 , H01M2/14 , H01M10/0525 , H01M10/0587
Abstract: A polyolefin microporous membrane is suitable to provide thereon a porous layer having little variation in thickness, which has a fluctuation range of F25 value in the length direction of 1 MPa or less, and which has a length of 1,000 m or more (wherein the F25 value refers to a value obtained by: measuring a load value applied to a test specimen when the test specimen is stretched by 25% using a tensile tester; and dividing the load value by the value of the cross-sectional area of the test specimen).
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18.发明申请公开(公告)号：US20190140239A1
公开(公告)日：2019-05-09
申请号：US16096860
申请日：2017-03-01
Applicant: Toray Industries, Inc.
Inventor： Naoki Mizuno , Masami Sugata
Abstract: A polyolefin microporous membrane has a variation range of F25 value in a longitudinal direction of 1 MPa or less; a thickness of 3 μm or more and less than 7 μm; and a length of 1,000 m or more (wherein the F25 value is a value obtained by measuring a load value applied to a test specimen when the test specimen is stretched by 25% using a tensile tester; and dividing the load value by a value of a cross-sectional area of a test specimen).
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公开(公告)号：US20180065289A1
公开(公告)日：2018-03-08
申请号：US15551876
申请日：2016-01-22
Applicant: Toray Industries, Inc.
Inventor： Takashi Ichinomiya , Masami Sugata , Masato Okuno
CPC classification number: B29C48/30 , B29C48/08 , B29C48/305 , B29C48/88 , B29C48/914 , B29C55/04 , B29C55/12 , B29C67/20 , B29L2007/00 , B29L2031/3468 , C08J9/26 , H01M2/18 , H01M10/0525
Abstract: A method of producing a microporous plastic film includes kneading a diluent and a polyolefin resin with an extruder; discharging the polyolefin resin kneaded with the diluent from a die lip in a sheet shape; cooling and solidifying the sheet discharged from the die lip on a drum; reheating and drawing the solidified sheet with a plurality of rollers in a sheet conveying direction; cooling the sheet drawn in the sheet conveying direction; gripping both ends of the sheet with clips; introducing the sheet into a tenter; and washing the diluent out to prepare a uniaxially or biaxially oriented microporous plastic film, wherein the sheet is drawn in two or more sections having substantively the same draw ratio between the rollers.
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公开(公告)号：US20180043598A1
公开(公告)日：2018-02-15
申请号：US15551611
申请日：2016-01-22
Applicant: Toray Industries, Inc.
Inventor： Takashi Ichinomiya , Masami Sugata
CPC classification number: B29C48/0018 , B29C48/08 , B29C48/30 , B29C48/305 , B29C48/307 , B29C48/88 , B29C48/91 , B29C48/914 , B29C48/919 , B29C55/04 , B29C55/12 , B29C55/18 , B29C55/20 , B29C67/20 , B29K2105/041 , C08J9/26
Abstract: A method of producing a microporous plastic film includes kneading a diluent and a polyolefin resin with an extruder; discharging the polyolefin resin kneaded with the diluent from a die lip in a sheet shape; cooling and solidifying the sheet discharged from the die lip on one or plurality of cooling drums; reheating and drawing the solidified sheet with a plurality of rollers in a sheet conveying direction; cooling the sheet drawn in the sheet conveying direction; gripping both ends of the sheet with clips; introducing the sheet into a tenter; washing the diluent out to prepare a uniaxially or biaxially oriented microporous plastic film; and driving a nip roller with a motor, the nip roller pressing a sheet interposing between the nip roller and at least one of the rollers.
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