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Particulate water absorbent agent and production method thereof, and water absorbent article

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • C08F-008/32
  • C08F-008/00
출원번호 UP-0078802 (2008-04-04)
등록번호 US-7582705 (2009-09-16)
우선권정보 JP-2004-029590(2004-02-05); JP-2004-100002(2004-03-30); JP-2004-258284(2004-09-06)
발명자 / 주소
  • Dairoku, Yorimichi
  • Adachi, Yoshifumi
  • Nogi, Kozo
  • Inoue, Hiroki
  • Wada, Katsuyuki
  • Irie, Yoshio
출원인 / 주소
  • Nippon Shokubai Co., Ltd.
대리인 / 주소
    Harness, Dickey & Pierce, P.L.C.
인용정보 피인용 횟수 : 12  인용 특허 : 45

초록

A particulate water absorbing agent of the present invention includes a water absorbent resin, having a cross-linking structure, whose surface has been cross-linked by adding a surface treatment agent, wherein: (i) a mass average particle diameter (D50) ranges from 200 to 600 μm and 95 to 100 w

대표청구항

What is claimed is: 1. A production method of a particulate water absorbing agent comprising the step of adding a surface treatment agent, containing (A) a surface cross-linking agent and (B) a surfactant or a powder lubricant as essential components, to a water absorbent resin, having a cross-link

이 특허에 인용된 특허 (45)

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이 특허를 인용한 특허 (12)

  1. Watanabe, Yusuke; Torii, Kazushi; Nogi, Kozo; Ishizaki, Kunihiko; Nakatsuru, Reiko; Sakamoto, Shigeru, Method for producing polyacrylic acid (salt) type water absorbent resin powder.
  2. Tian, Gonglu; Ondisco, Matthew Thomas; Bergman, David L.; Messner, Bernfried; Smith, Scott J., Particulate superabsorbent polymer composition having improved stability.
  3. Tian, Gonglu; Ondisco, Matthew Thomas; Bergman, David L.; Messner, Bernfried; Smith, Scott J.; Joy, Mark, Particulate superabsorbent polymer composition having improved stability.
  4. Kobayashi, Taishi; Imura, Motohiro; Iwamura, Taku; Wada, Katsuyuki; Nogi, Kozo; Mitsukami, Yoshiro; Abe, Masato; Ueda, Hiroko; Honda, Koji, Particulate water absorbent and process for production thereof.
  5. Kobayashi, Taishi; Imura, Motohiro; Iwamura, Taku; Wada, Katsuyuki; Nogi, Kozo; Mitsukami, Yoshiro; Abe, Masato; Ueda, Hiroko; Honda, Koji, Particulate water absorbent and process for production thereof.
  6. Nagashima, Teruhisa; Nakamura, Masatoshi; Watanabe, Yusuke; Nogi, Kozo; Ishizaki, Kunihiko, Particulate water absorbing agent and method for producing the same.
  7. Fujimaru, Hirotama; Ishizaki, Kunihiko; Nakahara, Sei, Polyacrylic acid (salt) water-absorbent resin, production process thereof, and acrylic acid used in polymerization for production of water-absorbent resin.
  8. Sakamoto, Shigeru; Irie, Yoshio; Nogi, Kozo; Ishizaki, Kunihiko, Polyacrylic acid-based water-absorbing resin powder and method for producing the same.
  9. Sakamoto, Shigeru; Irie, Yoshio; Nogi, Kozo; Ishizaki, Kunihiko, Polyacrylic water-absorbent resin powder and method for producing the same.
  10. Nakatsuru, Reiko; Sakamoto, Shigeru; Torii, Kazushi; Takaai, Toshihiro, Water-absorbable polyacrylic acid resin powder, and process for production thereof.
  11. Nakamura, Masatoshi; Miyake, Koji; Iwamura, Taku; Watanabe, Yusuke, Water-absorbent resin composition, method of manufacturing the same, and absorbent article.
  12. Sakamoto, Shigeru; Ikeuchi, Hiroyuki; Machida, Sayaka, Water-absorbing resin and method for manufacturing the same.
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