公开(公告)号：US11721493B2

公开(公告)日：2023-08-08

申请号：US16956824

申请日：2018-09-18

Applicant: SHOWA DENKO K.K.

Inventor： Takeshi Kawamoto ,  Takashi Okubo

IPC: H01G9/15 ,  C08F12/30 ,  C08K5/45 ,  H01G9/00 ,  H01G9/048

CPC classification number: H01G9/15 ,  C08F12/30 ,  C08K5/45 ,  H01G9/0036 ,  H01G9/048

Abstract: A liquid dispersion composition for solid electrolytic capacitor production, containing a conjugated conductive polymer prepared by polymerizing a monomer compound in a dispersion medium containing seed particles with protective colloid formed of a polyanion or in a dispersion medium containing a polyanion, and a compound (a) represented by a general formula (1), where R1 to R6 and k are as defined in the description; and a method for producing a solid electrolytic capacitor, including a step of adhering the composition to a porous anode body made of a valve action metal having a dielectric coating film on the surface thereof, and a step of removing the dispersion medium from the liquid dispersion composition having adhered to the porous anode body to form a solid electrolyte layer

公开(公告)号：US11136432B2

公开(公告)日：2021-10-05

申请号：US16474394

申请日：2017-09-29

Applicant: SHOWA DENKO K.K.

Inventor： Takeshi Kawamoto ,  Yuka Niimi

IPC: C08G61/12 ,  H01B1/12

Abstract: The present invention relates to (i) a method of producing a conductive polymer, comprising polymerizing at least one of compounds (A1) represented by the formula (1) disclosed in the specification in the presence of a compound (B) having sulfo group; (ii) a method of producing a conductive polymer, comprising polymerizing at least one compound selected from a group consisting of at least one compound (A2) represented by the formula (2); and (iii) a method of producing a conductive polymer, comprising copolymerizing at least one compound (A1) and at least one compound selected from a group consisting of at least one compound (A2). The method of the present invention is a method for producing a one-liquid type conductive polymer in which it is possible to easily adjust the solvent affinity, the solubility, and other such aspects of performance according to the purpose.

公开(公告)号：US11183340B2

公开(公告)日：2021-11-23

申请号：US16472980

申请日：2017-09-29

Applicant: SHOWA DENKO K.K.

Inventor： Takeshi Kawamoto ,  Yuka Niimi ,  Toshiya Kawasaki ,  Yoshinori Shibuya ,  Takeshi Kohama

IPC: H01G9/00 ,  C08G61/12 ,  H01G9/028 ,  H01G9/048 ,  H01G9/15

Abstract: A method of producing a solid electrolytic capacitor, including a step of forming a dielectric film on the surface of a valve-acting metal having fine pores and a step of forming a solid electrolyte layer containing a conductive polymer on the dielectric film; wherein the solid electrolyte layer containing the conductive polymer is formed without using an oxidizing agent by: (i) a method of polymerizing at least one of the compounds (A1) represented by formula (1) disclosed herein in the presence of a compound (B) having a sulfo group; (ii) a method of copolymerizing at least one compound (A2) represented by formula (2) disclosed herein; and (iii) a method of polymerizing at least one of the compounds (A1) and (A2).

公开(公告)号：US12018189B2

公开(公告)日：2024-06-25

申请号：US17428823

申请日：2020-03-16

Applicant: SHOWA DENKO K.K.

Inventor： Kazuhiko Oga ,  Takeshi Kawamoto ,  Kai Suzuki ,  Ryunosuke Yamamoto

IPC: C09J7/29 ,  B32B7/12 ,  B32B15/085 ,  B32B15/20 ,  B32B27/32 ,  C09J7/38 ,  H01M50/197

CPC classification number: C09J7/29 ,  B32B7/12 ,  B32B15/085 ,  B32B15/20 ,  B32B27/32 ,  C09J7/38 ,  H01M50/197 ,  B32B2255/06 ,  B32B2255/26 ,  B32B2457/10 ,  C09J2203/33 ,  C09J2301/16 ,  C09J2400/163 ,  C09J2475/00

Abstract: Provided are an outer package material that is for electricity storage devices such as batteries and has such a sufficient anti-electrolytic solution property that the time-dependent reduction of the adhesive strength between a metal foil layer and a sealant layer by an electrolytic solution is suppressed over a long time and a composition for adhesives for giving the outer package material. In an outer package material that is for electricity storage devices and has a structure in which at least a base material layer, a first adhesive layer, a metal foil layer, a second adhesive layer, and a sealant layer are stacked in sequence, a composition containing an isocyanato group and a (meth) acryloyl group and further containing an acid-modified polyolefin (component 1), an active energy ray polymerization initiator (component 3), and a solvent (component 4) is used as a composition for adhesives to form the second adhesive layer.

公开(公告)号：US11104659B2

公开(公告)日：2021-08-31

申请号：US16474400

申请日：2017-09-29

Applicant: SHOWA DENKO K.K.

Inventor： Takeshi Kawamoto ,  Yuka Niimi

IPC: C07D333/72 ,  C08G61/12

Abstract: The present invention relates to a fused heteropolycyclic compound represented by formulae (1) and (2), a method for producing the same, and a method for producing a conductive polymer represented by formulae (3) and (4) in which at least one compound represented by formula (2) is used (the symbols in the formulae are as described in the description). The method of the present invention is a method for producing a sulfo-group-containing polyisothianaphthene capable of reducing the use amount of an oxidant or capable of being polymerized without the use of any oxidant.