JP2009091499A5 - - Google Patents

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JP2009091499A5
JP2009091499A5 JP2007265253A JP2007265253A JP2009091499A5 JP 2009091499 A5 JP2009091499 A5 JP 2009091499A5 JP 2007265253 A JP2007265253 A JP 2007265253A JP 2007265253 A JP2007265253 A JP 2007265253A JP 2009091499 A5 JP2009091499 A5 JP 2009091499A5
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water
absorbent resin
absorption capacity
gel particles
fine gel
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JP2007265253A
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JP2009091499A (en
JP5242983B2 (en
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Description

すなわち本発明は、下記の式により求められる膨潤度が８０〜１００％の吸水性樹脂のゲルを粉砕することにより得られる、中位粒子径が０．０１〜５μｍの吸水性樹脂の微細ゲル粒子、ならびにそれにより得られるコーティング膜および積層体に関する。式中、吸水能（ｇ／ｇ）は、吸水性樹脂のイオン交換水に対する吸水能である。吸水性樹脂の吸水能は、１〜１５００ｇ／ｇが好ましい。

Figure 2009091499
That is, the present invention is a fine gel particle of a water absorbent resin having a median particle diameter of 0.01 to 5 μm, obtained by pulverizing a gel of a water absorbent resin having a degree of swelling of 80 to 100% obtained by the following formula: And a coating film and a laminate obtained thereby. In the formula, the water absorption capacity (g / g) is the water absorption capacity of the water absorbent resin with respect to the ion exchange water. The water absorption capacity of the water absorbent resin is preferably 1 to 1500 g / g.
Figure 2009091499

本発明において、膨潤度とは、吸水性樹脂のゲルに含まれる吸水性樹脂単位質量あたりの水（ｇ／ｇ）の、後述の測定方法により求められた吸水性樹脂のイオン交換水に対する吸水能（ｇ／ｇ）に対する割合を意味する。詳しくは、次式により求められる。

Figure 2009091499
In the present invention, the degree of swelling refers to the water absorption capacity of water-absorbent resin per unit mass of water-absorbent resin contained in the gel of the water-absorbent resin with respect to ion-exchanged water of the water-absorbent resin determined by the measurement method described later. It means the ratio to (g / g). Specifically, it is obtained by the following equation.
Figure 2009091499

Claims (4)

下記の式により求められる膨潤度が８０〜１００％の吸水性樹脂のゲルを粉砕することにより得られる、中位粒子径が０．０１〜５μｍの吸水性樹脂の微細ゲル粒子。
Figure 2009091499
 （式中、吸水能（ｇ／ｇ）は、前記吸水性樹脂のイオン交換水に対する吸水能である。） Fine gel particles of a water-absorbing resin having a median particle diameter of 0.01 to 5 μm, obtained by pulverizing a gel of a water-absorbing resin having a degree of swelling of 80 to 100% determined by the following formula .
Figure 2009091499
 (In the formula, the water absorption capacity (g / g) is the water absorption capacity of the water-absorbent resin for ion-exchanged water.) 前記吸水性樹脂の吸水能が１〜１５００ｇ／ｇである、請求項１に記載の吸水性樹脂の微細ゲル粒子。 The water- absorbent resin fine gel particles according to claim 1 , wherein the water-absorbent resin has a water absorption capacity of 1 to 1500 g / g. 請求項１または２に記載の吸水性樹脂の微細ゲル粒子をコーティングしてなるコーティング膜。   A coating film obtained by coating the fine gel particles of the water-absorbent resin according to claim 1 or 2. 基材上に、請求項１または２に記載の吸水性樹脂の微細ゲル粒子がコーティングされていることを特徴とする積層体。   A laminate comprising the substrate coated with the fine gel particles of the water-absorbent resin according to claim 1 or 2.
JP2007265253A 2007-10-11 2007-10-11 Fine gel particles of water absorbent resin, and coating film and laminate obtained thereby Active JP5242983B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007265253A JP5242983B2 (en) 2007-10-11 2007-10-11 Fine gel particles of water absorbent resin, and coating film and laminate obtained thereby

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Application Number Priority Date Filing Date Title
JP2007265253A JP5242983B2 (en) 2007-10-11 2007-10-11 Fine gel particles of water absorbent resin, and coating film and laminate obtained thereby

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JP2009091499A JP2009091499A (en) 2009-04-30
JP2009091499A5 true JP2009091499A5 (en) 2010-10-28
JP5242983B2 JP5242983B2 (en) 2013-07-24

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112014005896T5 (en) * 2013-12-20 2016-09-22 Reliance Industries Limited Water-absorbing polymers and process for their preparation
WO2018225266A1 (en) * 2017-06-09 2018-12-13 花王株式会社 Water absorbent sheet
WO2018225267A1 (en) * 2017-06-09 2018-12-13 花王株式会社 Water absorbent sheet

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57195124A (en) * 1981-05-26 1982-11-30 Rapuko Kk Preparation of dispersion of water-absorbing polymer
JPS60184540A (en) * 1984-03-02 1985-09-20 Fujikura Kasei Kk Composition containing powder of water-absorptive resin
JPH0794622B2 (en) * 1987-12-28 1995-10-11 ヘキスト合成株式会社 Coating composition for forming uneven surface
JP2831648B2 (en) * 1988-03-31 1998-12-02 住友精化株式会社 Water-absorbing water retention material
JP2981317B2 (en) * 1991-09-18 1999-11-22 旭化成工業株式会社 Non-calorie additive for cooked rice
JPH09272806A (en) * 1996-04-05 1997-10-21 Sanyo Chem Ind Ltd Water absorbing resin dispersion
JPH10279693A (en) * 1997-04-03 1998-10-20 Fuji Xerox Co Ltd Production of water-absorbing gel particle
JP4906987B2 (en) * 1998-04-07 2012-03-28 株式会社日本触媒 Method for producing hydrous gel-like particles and water-absorbing resin
JP4370595B2 (en) * 2002-12-18 2009-11-25 株式会社資生堂 Gel composition, fragrance, external preparation for skin and cosmetics

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