公开(公告)号：US20150111109A1

公开(公告)日：2015-04-23

申请号：US14398585

申请日：2013-06-04

Applicant: MITSUBISHI PLASTICS, INC.

Inventor： Hiroto Yamada ,  Tomoyuki Nemoto

IPC: H01M2/16 ,  C08K5/1535 ,  C08K3/16 ,  C09D129/04 ,  C08K3/22

CPC classification number: H01M2/1686 ,  C08J7/047 ,  C08J2323/12 ,  C08J2429/04 ,  C08K3/16 ,  C08K3/22 ,  C08K5/1535 ,  C08K2003/2227 ,  C08K2201/006 ,  C09D129/04 ,  H01M2/145 ,  H01M2/1653 ,  H01M2/166 ,  Y10T428/249981 ,  C08L21/02

Abstract: There is provided a multilayer porous film that includes a covering layer formed from a coating liquid on at least one surface of a porous film. The coating liquid has high stability and coatability. The covering layer does not decrease the intrinsic high air permeability of the porous film and has high heat resistance and adhesiveness. The multilayer porous film has excellent handleability as a battery separator without causing curling. The multilayer porous film includes the covering layer on at least one surface of a porous polyolefin resin film. The covering layer is formed from a coating liquid and contains a filler and a resin binder. The multilayer porous film satisfies the following conditions 1) and 2): 1) the filler has an average circularity of 0.3 or more and less than 0.7; and 2) an acid component in the coating liquid has a first acid dissociation constant of 5 or less and has no second acid dissociation constant or a second acid dissociation constant of 7 or more in a dilute aqueous solution at 25° C.

Abstract translation: 提供了一种多层多孔膜，其包括由多孔膜的至少一个表面上的涂布液形成的覆盖层。 涂布液具有高稳定性和涂布性。 覆盖层不会降低多孔膜的本征高透气性，并且具有高耐热性和粘合性。 多层多孔膜作为电池隔膜具有优异的可操作性，而不会发生卷曲。 多层多孔膜在多孔聚烯烃树脂膜的至少一个表面上具有覆盖层。 覆盖层由涂布液形成并含有填料和树脂粘合剂。 多层多孔膜满足以下条件1）和2）：1）填料的平均圆形度为0.3以上且小于0.7， 和2）涂布液中的酸成分在25℃的稀水溶液中的第一酸解离常数为5以下，在第二酸解离常数或第二酸解离常数为7以上。

公开(公告)号：US20140234538A1

公开(公告)日：2014-08-21

申请号：US14346565

申请日：2012-09-18

Applicant: MITSUBISHI PLASTICS, INC.

Inventor： Hiroto Yamada ,  Tomoyuki Nemoto

IPC: H01M2/14

CPC classification number: H01M2/145 ,  B29C47/00 ,  B32B27/08 ,  B32B27/32 ,  B32B2250/24 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/518 ,  B32B2307/704 ,  B32B2307/724 ,  B32B2457/10 ,  C08K2003/2227 ,  C09D1/00 ,  C09D5/02 ,  H01M2/1646 ,  H01M2/1653 ,  H01M2/1686 ,  H01M10/052 ,  H01M10/4235 ,  H01M2220/30

Abstract: The present invention produces a laminated porous film which improves the stability of an aqueous dispersion of a metal oxide without lowering battery characteristics, while having high binding properties and excellent heat resistance. This laminated porous film exhibits excellent characteristics when used as a separator for batteries. This laminated porous film is produced by forming a porous coating layer on at least one outer surface of a resin porous film, which is formed of a single layer or a laminate of a plurality of layers, by applying a coating liquid that contains a metal oxide, a resin binder and a volatile acid thereto and drying the applied coating liquid. The coating liquid is prepared so that the difference between the pH (pH1) of the coating liquid and the pH (pH2) of the coating layer is not less than 2.

Abstract translation: 本发明产生层压多孔膜，其提高了金属氧化物的水分散体的稳定性，而不降低电池特性，同时具有高粘合性和优异的耐热性。 当用作电池隔膜时，该层压多孔膜表现出优异的特性。 该层压多孔膜是通过在包含金属氧化物的涂布液中形成多孔涂层而形成多孔涂层，所述多孔涂层在由单层或多层叠层形成的树脂多孔膜的至少一个外表面上形成 ，树脂粘合剂和挥发性酸，并干燥所涂覆的涂布液。 制备涂布液，使得涂布液的pH（pH1）与涂层的pH（pH2）之差不小于2。

公开(公告)号：US20140193692A1

公开(公告)日：2014-07-10

申请号：US14236010

申请日：2013-03-15

Applicant: MITSUBISHI PLASTICS, INC.

Inventor： Hiroto Yamada ,  Tomoyuki Nemoto

IPC: H01M2/16

CPC classification number: H01M2/1653 ,  B32B27/08 ,  B32B27/20 ,  B32B27/32 ,  H01M2/1626 ,  H01M2/1646 ,  H01M2/1666 ,  H01M2/1686 ,  H01M10/052 ,  H01M10/4235 ,  Y10T428/249991

Abstract: Provided is a multilayer porous film that has extremely high powder fall-off resistance and superior electrolyte solution adsorptivity and heat resistance and exhibits superior properties when used as a battery separator without decreasing the high air permeability of a porous film. The multilayer porous film includes a polyolefin-based resin porous film and a coating layer containing a filler and a resin binder on at least one surface of the polyolefin-based resin porous film. The amount of particles with particle sizes of less than 0.2 μm (D0.2) in the filler is 1% or more, and the specific surface area of the filler is 5 m2/g or more and less than 10 m2/g. The multilayer porous film satisfies a particular condition.

Abstract translation: 提供一种多层多孔膜，其具有非常高的抗粉碎性和优异的电解质溶液吸附性和耐热性，并且在用作电池隔膜时表现出优异的性能，而不会降低多孔膜的高透气性。 多层多孔膜在聚烯烃类树脂多孔膜的至少一个表面上包含聚烯烃类树脂多孔膜和含有填料和树脂粘合剂的涂层。 填料中粒径小于0.2μm（D0.2）的粒子的量为1％以上，填料的比表面积为5m 2 / g以上且小于10m 2 / g。 多层多孔膜满足特定条件。

公开(公告)号：US10305080B2

公开(公告)日：2019-05-28

申请号：US14817785

申请日：2015-08-04

Applicant: MITSUBISHI PLASTICS, INC.

Inventor： Hiroto Yamada ,  Kouji Takegawa ,  Tomoyuki Nemoto

IPC: H01M2/16

Abstract: The viscosity stability in forming a slurry of one or metal components selected from water-insoluble metal oxides and metal salts is improved, and using the resultant slurry, a coating layer is formed on a polyolefinic resin porous film to give a multilayer porous film having excellent surface smoothness. The multilayer porous film has, as layered on at least one surface of a polyolefinic resin porous film, a coating layer that contains one or more metal components selected from water-insoluble metal oxides and metal salts, and a resin binder, wherein the content of water-soluble calcium contained in the metal components is 3 ppm by mass or less.

公开(公告)号：US09343719B2

公开(公告)日：2016-05-17

申请号：US14346565

申请日：2012-09-18

Applicant: Mitsubishi Plastics, Inc.

Inventor： Hiroto Yamada ,  Tomoyuki Nemoto

IPC: B05D3/02 ,  H01M2/14 ,  B32B27/32 ,  H01M2/16 ,  H01M10/42 ,  B29C47/00 ,  B32B27/08 ,  C09D1/00 ,  H01M10/052

CPC classification number: H01M2/145 ,  B29C47/00 ,  B32B27/08 ,  B32B27/32 ,  B32B2250/24 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/518 ,  B32B2307/704 ,  B32B2307/724 ,  B32B2457/10 ,  C08K2003/2227 ,  C09D1/00 ,  C09D5/02 ,  H01M2/1646 ,  H01M2/1653 ,  H01M2/1686 ,  H01M10/052 ,  H01M10/4235 ,  H01M2220/30

Abstract: The present invention produces a laminated porous film which improves the stability of an aqueous dispersion of a metal oxide without lowering battery characteristics, while having high binding properties and excellent heat resistance. This laminated porous film exhibits excellent characteristics when used as a separator for batteries. This laminated porous film is produced by forming a porous coating layer on at least one outer surface of a resin porous film, which is formed of a single layer or a laminate of a plurality of layers, by applying a coating liquid that contains a metal oxide, a resin binder and a volatile acid thereto and drying the applied coating liquid. The coating liquid is prepared so that the difference between the pH (pH1) of the coating liquid and the pH (pH2) of the coating layer is not less than 2.

Abstract translation: 本发明产生层压多孔膜，其提高了金属氧化物的水分散体的稳定性，而不降低电池特性，同时具有高粘合性和优异的耐热性。 当用作电池隔膜时，该层压多孔膜表现出优异的特性。 该层压多孔膜是通过在包含金属氧化物的涂布液中形成多孔涂层而形成多孔涂层，所述多孔涂层在由单层或多层叠层形成的树脂多孔膜的至少一个外表面上形成 ，树脂粘合剂和挥发性酸，并干燥所涂覆的涂布液。 制备涂布液，使得涂布液的pH（pH1）与涂层的pH（pH2）之差不小于2。

公开(公告)号：US09935303B2

公开(公告)日：2018-04-03

申请号：US15034089

申请日：2015-12-08

Applicant: MITSUBISHI PLASTICS, INC.

Inventor： Hiroto Yamada ,  Tomoyuki Nemoto

IPC: H01M2/16 ,  H01M10/052 ,  H01M10/0525 ,  C01F7/02 ,  C08K7/24 ,  B32B5/32 ,  B32B27/32 ,  C08J9/42 ,  H01M10/0566 ,  C09D1/00 ,  C09D129/04 ,  C09D5/00 ,  C09D7/12 ,  C09D127/16 ,  C08J5/18 ,  C08K3/22

CPC classification number: H01M2/1686 ,  B32B3/26 ,  B32B5/32 ,  B32B7/12 ,  B32B27/08 ,  B32B27/205 ,  B32B27/32 ,  B32B2255/10 ,  B32B2255/20 ,  B32B2255/26 ,  B32B2264/10 ,  B32B2307/538 ,  B32B2457/10 ,  C01F7/02 ,  C01F7/026 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/22 ,  C08J5/18 ,  C08J9/42 ,  C08J2323/02 ,  C08J2323/12 ,  C08J2429/04 ,  C08K7/24 ,  C08K2003/2227 ,  C08K2201/003 ,  C08K2201/006 ,  C09D1/00 ,  C09D5/00 ,  C09D7/68 ,  C09D7/70 ,  C09D127/16 ,  C09D129/04 ,  H01M2/16 ,  H01M2/1646 ,  H01M2/1653 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0566 ,  C08K3/22

Abstract: An alumina slurry containing alumina dispersed in a dispersion medium, the alumina having an average primary particle diameter of 0.1 μm or more and 1.0 μm or less, the alumina satisfying the following condition (1), and the slurry having a content of the alumina of 30% by mass or more and 70% by mass or less and a content of water in the dispersion medium of 50% by mass or more:condition (1): in relationship of a pore diameter r1 (Å) and a pore volume Dv1 (mL/g) of the alumina measured by a nitrogen desorption method based on JIS Z8831-2 (2010), the pore volume Dv1(80) at r1=80 and the maximum value Dv1(M) of Dv1 in a range 20≤r1≤80 satisfy Dv1(M)>Dv1(80).

公开(公告)号：US09252412B2

公开(公告)日：2016-02-02

申请号：US14236010

申请日：2013-03-15

Applicant: MITSUBISHI PLASTICS, INC.

Inventor： Hiroto Yamada ,  Tomoyuki Nemoto

IPC: H01M2/16 ,  H01M10/42 ,  B32B27/32 ,  B32B27/08 ,  B32B27/20 ,  H01M10/052

CPC classification number: H01M2/1653 ,  B32B27/08 ,  B32B27/20 ,  B32B27/32 ,  H01M2/1626 ,  H01M2/1646 ,  H01M2/1666 ,  H01M2/1686 ,  H01M10/052 ,  H01M10/4235 ,  Y10T428/249991

Abstract: Provided is a multilayer porous film that has extremely high powder fall-off resistance and superior electrolyte solution adsorptivity and heat resistance and exhibits superior properties when used as a battery separator without decreasing the high air permeability of a porous film. The multilayer porous film includes a polyolefin-based resin porous film and a coating layer containing a filler and a resin binder on at least one surface of the polyolefin-based resin porous film. The amount of particles with particle sizes of less than 0.2 μm (D0.2) in the filler is 1% or more, and the specific surface area of the filler is 5 m2/g or more and less than 10 m2/g. The multilayer porous film satisfies a particular condition.

Abstract translation: 提供一种多层多孔膜，其具有非常高的抗粉碎性和优异的电解质溶液吸附性和耐热性，并且在用作电池隔膜时表现出优异的性能，而不会降低多孔膜的高透气性。 多层多孔膜在聚烯烃类树脂多孔膜的至少一个表面上包含聚烯烃类树脂多孔膜和含有填料和树脂粘合剂的涂层。 填料中粒径小于0.2μm（D0.2）的颗粒的量为1％以上，填料的比表面积为5m 2 / g以上且小于10m 2 / g。 多层多孔膜满足特定条件。