Water-absorbent resin and production process therefor
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08J-003/24
C08J-003/12
C08F-120/62
출원번호
US-0945812
(2001-09-05)
우선권정보
JP-0285658 (2000-09-20); JP-0336813 (2000-11-06)
발명자
/ 주소
Hatsuda, Takumi
Irie, Yoshio
Nakamura, Masatoshi
Wada, Katsuyuki
Fujino, Shinichi
Kimura, Kazuki
Ishizaki, Kunihiko
출원인 / 주소
Nippon Shokubai Co., Ltd.
대리인 / 주소
Roylance, Abrams, Berdo & Goodman, L.L.P.
인용정보
피인용 횟수 :
20인용 특허 :
16
초록▼
In a production process for a water-absorbent resin, comprising the steps of: blending a liquid material and a water-absorbent resin; and heating the resultant mixture in order to produce a modified water-absorbent resin, the present invention is to provide: a method for uniformly and efficiently tr
In a production process for a water-absorbent resin, comprising the steps of: blending a liquid material and a water-absorbent resin; and heating the resultant mixture in order to produce a modified water-absorbent resin, the present invention is to provide: a method for uniformly and efficiently treating a water-absorbent resin favorably in view of industry, and as a result, a good-balanced water-absorbent resin having various excellent properties, such absorption capacity without a load, absorption capacity under a load, and single-layer absorption capacity under a load in contact with an aqueous liquid. The production process comprises the step of spray-blending a water-absorbent resin (A) and a liquid material (B) with a blending apparatus equipped with a spray nozzle (C), wherein the liquid material (B) is sprayed from the spray nozzle (C) and its spray pattern is a circular and hollow cone shape or a double-convex-lens and elliptic cone shape. In addition, the production process comprises the step of heat-treating a water-absorbent resin under an atmosphere having a dew point of not higher than 60° C. and a temperature of not lower than 90° C., wherein the water-absorbent resin is obtained after a drying step following a pulverization step.
대표청구항▼
In a production process for a water-absorbent resin, comprising the steps of: blending a liquid material and a water-absorbent resin; and heating the resultant mixture in order to produce a modified water-absorbent resin, the present invention is to provide: a method for uniformly and efficiently tr
In a production process for a water-absorbent resin, comprising the steps of: blending a liquid material and a water-absorbent resin; and heating the resultant mixture in order to produce a modified water-absorbent resin, the present invention is to provide: a method for uniformly and efficiently treating a water-absorbent resin favorably in view of industry, and as a result, a good-balanced water-absorbent resin having various excellent properties, such absorption capacity without a load, absorption capacity under a load, and single-layer absorption capacity under a load in contact with an aqueous liquid. The production process comprises the step of spray-blending a water-absorbent resin (A) and a liquid material (B) with a blending apparatus equipped with a spray nozzle (C), wherein the liquid material (B) is sprayed from the spray nozzle (C) and its spray pattern is a circular and hollow cone shape or a double-convex-lens and elliptic cone shape. In addition, the production process comprises the step of heat-treating a water-absorbent resin under an atmosphere having a dew point of not higher than 60° C. and a temperature of not lower than 90° C., wherein the water-absorbent resin is obtained after a drying step following a pulverization step. /010; US-4929602, 19900500, Harker et al., 514/018; US-4935415, 19900600, Nakane et al., 514/211; US-4959355, 19900900, Fischbarg et al., 514/023; US-4962091, 19901000, Eppstein et al., 514/002; US-4968350, 19901100, Bindschaedler et al., 106/170; US-4973601, 19901100, Dowd et al., 514/410; US-4990538, 19910200, Harris et al., 514/648; US-4994033, 19910200, Shockey et al., 604/101; US-4994384, 19910200, Prather et al., 435/172.2; US-4997652, 19910300, Wong, 424/428; US-5009659, 19910400, Hamlin et al., 606/159; US-5015578, 19910500, Schroeder et al., 435/119; US-5015666, 19910500, Magarian et al., 514/754; US-5026537, 19910600, Daddona et al., 424/001.1; US-5030637, 19910700, Einzig et al., 514/304; US-5032679, 19910700, Brandley et al., 536/021; US-5043335, 19910800, Kleinschroth et al., 514/211; US-5047431, 19910900, Schickaneder et al., 514/648; US-5049132, 19910900, Shaffer et al., 604/101; US-5053033, 19911000, Clarke et al., 606/003; US-5059166, 19911000, Fischell et al., 600/003; US-5066789, 19911100, Srinivasan et al., 530/388; US-5073633, 19911200, Schroeder et al., 540/545; US-5093330, 19920300, Caravatti et al., 514/211; US-5098903, 19920300, Magarian et al., 514/255; US-5102402, 19920400, Dror et al., 604/265; US-5112305, 19920500, Barath et al., 704/096; US-5114719, 19920500, Sabel et al., 424/422; US-5114847, 19920500, Jungfer et al., 435/041; US-5116864, 19920500, March et al., 514/455; US-5120535, 19920600, Marquardt et al., 424/085.5; US-5140012, 19920800, McGovern et al., 514/019; US-5145684, 19920900, Liversidge et al., 424/489; US-5166143, 19921100, Ondetti et al., 514/089; US-5166191, 19921100, Cronin et al., 514/012; US-5167960, 19921200, Ito et al., 424/423; US-5171217, 19921200, March et al., 604/053; US-5175235, 19921200, Domb et al., 528/271; US-5176617, 19930100, Fischell et al., 600/003; US-5180366, 19930100, Woods, 604/096; US-5185260, 19930200, Crissman et al., 435/244; US-5189046, 19930200, Burch et al., 514/330; US-5189212, 19930200, Ruenitz, 562/468; US-5192525, 19930300, Yang et al., 424/011; US-5199939, 19930400, Dake et al., 600/003; US-5208019, 19930500, Hanson et al., 424/085; US-5208238, 19930500, King, 514/255; US-5213576, 19930500, Abiuso et al., 604/096; US-5213580, 19930500, Slepian et al., 623/001; US-5216024, 19930600, Markaverich et al., 514/543; US-5216126, 19930600, Cox et al., 530/350; US-5219548, 19930600, Yang et al., 424/001; US-5221620, 19930600, Purchio et al., 435/069; US-5226430, 19930700, Spears et al., 128/898; US-5229495, 19930700, Ichijo et al., 530/350; US-5232444, 19930800, Just et al., 604/096; US-5232911, 19930800, Vidal et al., 514/012; US-5238714, 19930800, Wallace et al., 427/213; US-5238950, 19930800, Clader et al., 514/360; US-5242397, 19930900, Barath et al., 604/096; US-5248764, 19930900, Flanagan et al., 530/324; US-5252579, 1
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