98 patents
Page 5 of 5
Utility
Electrode precursor, electrode, and cell
24 Feb 20
The present invention provides an electrode which is a zinc anode or an electrode of any other type, and ensures good durability and sufficiently high ion conductivity, and sufficiently improves the cell performance when used in a cell, and also provides its precursor.
Satoshi Ogawa, Koji Yonehara, Hiroko Harada, Yasuyuki Takazawa, Hironobu Ono
Filed: 29 Jan 14
Utility
Method for producing copolymer
24 Feb 20
A method of producing a copolymer of the present invention is a method of producing a specific copolymer and includes: a pure water production step of producing pure water having an electric conductivity of from 0.1 μS/cm to 100 μS/cm; a pure water transfer step of introducing the pure water into a reaction kettle for producing the copolymer through a transfer pipe using, as a material therefor, a resin or a substance forming a passive state in water; and a polymerization step of performing polymerization of the monomer (a), the monomer (b), and the monomer (c) in the reaction kettle, the pure water transfer step including setting the electric conductivity of the pure water at a site where the pure water is introduced from the transfer pipe toward the reaction kettle within a range of from 0.1 μS/cm to 100 μS/cm.
Atsushi Okada, Nobuhiro Kobayashi
Filed: 26 Apr 17
Utility
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17 Feb 20
The purpose of the present invention is to provide a particulate water absorbing agent having both a high water absorption multiplying factor and a high water absorption rate and a method for manufacturing the same.
Kazushi Torii, Mariko Tamaki, Daisuke Takagi, Yuichiro Horimoto, Taishi Kobayashi, Taku Fujimoto, Takahiro Kitano, Taku Iwamura, Hiroki Kawada, Hiroyuki Goto, Yasuhisa Nakajima, Hiroyuki Ikeuchi
Filed: 27 Mar 17
Utility
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17 Feb 20
Noritaka Mizuno, Tetsuichi Kudo, Mitsuhiro Hibino, Yoshiyuki Ogasawara, Yosuke Suga, Atsuo Yamada, Yuki Yamada, Shin-ichi Okuoka, Koji Yonehara, Hironobu Ono, Yasutaka Sumida
Filed: 24 Sep 13
Utility
3sxn1wbrqwp29c7623lb592pn22bz7aav3qko8h8brm4
27 Jan 20
A process for producing a cyclic hydrogenated silane compound comprising: a decomplexation step of contacting a salt of a cyclic halosilane compound with a Lewis acid compound to react, thereby obtaining a cyclic halosilane compound; and a reduction step of contacting the cyclic halosilane compound with a metal hydride to reduce the cyclic halosilane compound, thereby obtaining a cyclic hydrogenated silane compound.
Takashi Abe
Filed: 12 Mar 18
Utility
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20 Jan 20
Provided is a method for producing a particulate water absorbing agent, the method including the steps of: a polymerization step of polymerizing an acrylic acid (salt)-based aqueous monomer solution so as to obtain a crosslinked hydrogel polymer; a drying step of drying the crosslinked hydrogel polymer so as to obtain a dried polymer; a classification step of classifying a polymer subjected to classification so as to obtain a water-absorbing resin powder having a specific particle size; and a surface-crosslinking step of surface-crosslinking the water-absorbing resin powder that is not surface crosslinked, wherein the classification step is carried out at least either or both of before and/or after the surface-crosslinking step but after said drying step, and wherein a hole shape of a classification sieve used in the classification step is an irregular polygonal or non-circular.
Kazushi Torii, Kunihiko Ishizaki, Shinichi Fujino, Ryota Wakabayashi, Motohiro Imura
Filed: 29 Mar 16
Utility
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20 Jan 20
The present invention provides a method of producing an ethanolamine, with a low production ratio of a dialkanolamine (for example, less than 30% by weight).
Daisuke Ichikawa, Takahiro Sugiya
Filed: 15 Mar 17
Utility
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13 Jan 20
A particulate water absorbing agent having a polyacrylic acid (salt)-based water-absorbing resin as a main component, being surface-crosslinked and satisfying physical properties (1) to (3) below: (1) a proportion of particles with a particle diameter of not less than 150 μm and less than 850 μm is not less than 90% by weight; (2) an elastic modulus index (EMI) of particles with a particle diameter of not less than 500 μm and less than 600 μm is not less than 5500; and (3) a recovery rate defined as Rec.CRC/CRC is 1.05 to 1.20, the particulate water absorbing agent being particularly useful for absorbent articles.
Kohei Omori, Kazushi Torii, Nobuya Tanaka
Filed: 30 Jun 16
Utility
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13 Jan 20
The object of the present invention is to provide silica particles which are surface-treated with a silicon compound uniformly and have improved surface characteristics and affinity with a resin.
Yuji Ono, Hideki Oishi, Shoichi Shibazaki
Filed: 8 Feb 15
Utility
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6 Jan 20
Manabu Ueda, Takahiro Kitano, Yoshitaka Ikeuchi, Hiroyuki Ikeuchi, Katsuyuki Wada
Filed: 29 Nov 18
Utility
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6 Jan 20
A method of producing a copolymer of the present invention is a method of producing a specific copolymer and includes: a pure water production step of producing pure water having an electric conductivity of from 0.1 μS/cm to 100 μS/cm; a pure water transfer step of introducing the pure water into a reaction kettle for producing the copolymer through a transfer pipe using, as a material therefor, a resin or a substance forming a passive state in water; and a polymerization step of performing polymerization of the monomer (a), the monomer (b), and the monomer (c) in the reaction kettle, the pure water transfer step including setting the electric conductivity of the pure water at a site where the pure water is introduced from the transfer pipe toward the reaction kettle within a range of from 0.1 μS/cm to 100 μS/cm.
Atsushi Okada, Nobuhiro Kobayashi
Filed: 26 Apr 17
Utility
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16 Dec 19
A curable resin obtained by reacting a polybasic anhydride with a reaction product of an epoxy resin with a phenol compound having an alcoholic hydroxyl group and an unsaturated monobasic acid, wherein an epoxy resin having a softening point of 93° C. or higher is used as the epoxy resin.
Masatoshi Yoshida, Nobuaki Otsuki
Filed: 20 Jan 16
Utility
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2 Dec 19
Kozo Nogi, Masatoshi Nakamura, Hirofumi Shibata, Koji Honda, Yusuke Watanabe, Satoshi Matsumoto, Reiko Nakatsuru, Kunihiko Ishizaki
Filed: 29 Jan 12
Utility
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18 Nov 19
The objective of the present invention is to provide a steam electrolysis cell of which current efficiency is high and by which hydrogen can be efficiently produced, and a method for producing hydrogen using the steam electrolysis cell.
Kuninori Miyazaki, Masatoshi Ikeda
Filed: 19 May 15
Utility
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11 Nov 19
A method according to the present invention for producing water absorbent resin powder is a method for producing water absorbent resin having a surface cross-linked structure, and includes: a polymerization step in which an unsaturated monomer aqueous solution is polymerized; a drying step in which a hydrogel cross-linked polymer obtained in the polymerization step is dried; a surface treatment step in which the hydrogel cross-linked polymer or a dried hydrogel cross-linked polymer is subjected to a surface treatment; and a sorting step, carried out after the drying step, in which a foreign matter included in a water absorbent resin is color-sorted from the water absorbent resin entirely or partially.
Katsuhiro Kajikawa, Sumio Okuda, Kazumasa Konishi, Kunihiko Ishizaki
Filed: 4 Apr 19
Utility
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28 Oct 19
Hiromoto Katsuyama
Filed: 21 Jun 16
Utility
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14 Oct 19
A viscosity index improver comprising a polymer which has a high viscosity index and good shear stability and which exhibits sufficient solubility in a lubricating base oil, a process for producing the same, and a lubricating oil composition containing the viscosity index improver are provided, wherein the viscosity index improver comprising a polymer satisfying the following (1) to (4): (1) weight-average molecular weight (Mw) of 200,000 or more and 600,000 or less; (2) number-average molecular weight (Mn) of 90,000 or more; (3) molecular weight distribution (Mw/Mn) of 4.0 or less; and (4) branching degree of 1.0 or more.
Tadayoshi Ugamura, Kazunari Yasumura, Keiko Izumi
Filed: 14 Sep 15
Utility
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7 Oct 19
An object of the present invention is to provide a method for producing water absorbent resin powder in which permeability potential (SFC) is improved while a water absorbing rate (FSR) is being kept.
Sayaka Machida, Kazushi Torii, Yoko Shirai, Hiroyuki Ikeuchi, Shigeru Sakamoto, Koji Tachi, Reiko Nakatsuru
Filed: 25 Jul 16