98 patents
Page 2 of 5
Utility
Method for producing water-absorbent resin powder and production apparatus therefor
11 Oct 22
The production method includes: a gel-crushing step of grinding a crosslinked hydrogel polymer to obtain a particulate crosslinked hydrogel polymer; a heating drying step of obtaining dried particles from the particulate crosslinked hydrogel polymer by using a continuous stirring drying machine; a post-crosslinking step of post-crosslinking the particulate crosslinked hydrogel polymer or the dried particles; and a sizing step of adjusting a particle size of the dried particles or the post-crosslinked dried particles to obtain water-absorbent resin powder.
Hiroyasu Watabe, Mai Sato, Ryota Wakabayashi, Yoshihiro Shobo, Shin-ya Katsube, Motohiro Imura, Koji Honda, Yoshifumi Adachi, Tsuyoshi Yorino, Masafumi Inoue, Tomoyuki Arake, Hiroki Hayashi, Naoki Katakura, Shin-ichi Fujino, Kunihiko Ishizaki, Tokio Shuto
Filed: 16 Nov 17
Utility
Method for producing polyacrylic acid (salt)-based water absorbent resin
4 Oct 22
As a method for producing a polyacrylic acid (salt)-based water absorbent resin particle which less generates fine powder and has an excellent impact resistance and a high moisture content even in a case where the polyacrylic acid (salt)-based water absorbent resin particle is produced on a large scale, employed is a production method including the steps of: (a) adding a surface crosslinking agent solution to water absorbent resin powder to obtain a mixture; (b) reacting the mixture; and, thereafter (c) adding an aqueous liquid to at least one selected from the group consisting of (i) the water absorbent resin powder during the step (b) and (ii) the water absorbent resin powder after the step (b), an atmospheric dew point being not lower than 20° C. in the step (c), and a temperature of the water absorbent resin powder being higher than the atmospheric dew point in the step (c).
Hidenori Wada, Motohiro Imura, Katsuyuki Wada, Seiji Kato
Filed: 17 Jun 20
Utility
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20 Sep 22
This invention provides a cell culture substrate comprising on its surface a fluorine-containing polymer that enables three-dimensional tissue culture.
Tomomi Makino, Hiroshi Horikawa
Filed: 17 Mar 15
Utility
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23 Aug 22
Ryo Nakamura, Yasutaka Nakatani, Yoichi Igawa, Erina Hanai
Filed: 18 Apr 19
Utility
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24 May 22
The present invention provides an electrolyte composition that provides better charging/discharging performance when used in a cell than a conventional electrolyte composition.
Shin-ya Shibata, Motohiro Arakawa
Filed: 19 Jun 18
Utility
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17 May 22
Seiichi Suzuki, Takashi Saito
Filed: 23 Aug 18
Utility
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17 May 22
A ceramic sheet including a principal surface having particle marks is disclosed.
Norikazu Aikawa, Katsuhiko Sakamoto, Kazuhisa Murakami
Filed: 12 Dec 19
Utility
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5 Apr 22
The present invention aims to provide a resin composition containing a cyanate ester compound which can reduce the formation of carbamate compounds so that the resin composition can be suitably used as an sealing material.
Takuo Sugioka, Teruhisa Fujibayashi
Filed: 11 Feb 20
Utility
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29 Mar 22
The present invention provides a safe and highly efficient method for producing graphite oxide.
Hironobu Ono, Osamu Konosu, Shin-ichi Okuoka, Syun Gohda, Shusuke Kamata, Yuichi Sato, Yuta Nishina
Filed: 8 Nov 16
Utility
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15 Mar 22
The present invention aims to provide a regeneration method capable of sufficiently restoring the catalytic performance of a solid catalyst used in a dehydration reaction of lactic acid and derivatives thereof.
Juan Estaban Velasquez, Dimitris Ioannis Collias, Jane Ellen Godlewski, Motosuke Imada, Koji Shingubara, Masashi Tonoya, Shinji Kanbara, Masaki Okada, Tomoharu Oku, Hideaki Tsuneki, Masanori Nonoguchi
Filed: 6 Oct 17
Utility
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18 Jan 22
A water absorbent agent having a high water absorption multiplying factor where stickiness after absorbing liquid can be reduced when used as a hygienic material is produce by a method for manufacturing the water absorbing agent.
Mariko Tamaki, Kazushi Torii, Hiroyuki Ikeuchi
Filed: 28 Mar 17
Utility
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4 Jan 22
Tomomi Makino, Takuma Nakada, Masaaki Ii
Filed: 4 Dec 17
Utility
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4 Jan 22
The object of the present invention is to provide silica particles which can provide a silica particle dispersion exhibiting excellent uniformity.
Masaki Nishimura, Yuji Ono, Shoichi Shibazaki
Filed: 5 Apr 18
Utility
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28 Dec 21
An object of the present invention is to provide zirconium oxide nanoparticles that have excellent dispersibility in a polar solvent and are capable of increasing a core concentration in a dispersion liquid.
Tomoyuki Yao, Takeo Akatsuka
Filed: 30 Jan 17
Utility
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21 Dec 21
A resin emulsion for a coating material, which contains emulsion particles each having an inner layer and an outer layer, and wherein: each emulsion particle has a resin layer containing a polymer (I) that is obtained by emulsion polymerizing a monomer component A containing 80 to 100% by mass of a styrene monomer and 0 to 20% by mass of a monomer other than the styrene monomer and a resin layer containing a polymer (II) that is obtained by emulsion polymerizing a monomer component B containing 70 to 100% by mass of a (meth)acrylic acid ester and 0 to 30% by mass of a monomer other than the (meth)acrylic acid ester; and the content of the styrene monomer in all monomer components used as starting materials for the emulsion particles is 10 to 55% by mass.
Kanji Nakao, Yoshiaki Kuramochi
Filed: 16 Sep 16
Utility
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23 Nov 21
The present invention provides an organic electroluminescence device having excellent luminous efficiency and excellent luminance.
Katsuyuki Morii, Kaho Maeda, Akiko Kuriyama, Hirohiko Fukagawa, Takahisa Shimizu
Filed: 18 Sep 18
Utility
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23 Nov 21
An organic thin film that imparts an excellent electron injection property when it is used as an electron injection layer of an organic EL device and a method for producing the organic thin film are provided.
Hirohiko Fukagawa, Takahisa Shimizu, Katsuyuki Morii, Munehiro Hasegawa, Syun Gohda
Filed: 17 Mar 16
Utility
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16 Nov 21
The invention aims to provide a crosslinked polymer having excellent moisture retention properties, an excellent ethanol absorption capacity, excellent adhesiveness to the skin when applied to the skin as a cosmetic, and a high concentration of an effective component.
Yui Ikemoto, Kazuhiro Okamura
Filed: 7 Jul 17
Utility
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9 Nov 21
Takeshi Takayama, Masashi Tonoya
Filed: 18 Feb 19
Utility
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14 Sep 21
The present invention aims to provide a coating material which has high mechanical stability and is capable of providing a coat which has excellent appearance and exhibits excellent damping properties in a wide temperature range.
Yukihiro Miyawaki
Filed: 30 Mar 16