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특허 상세정보

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내보내기 페이스북 공유 카카오톡 공유

Particulate water absorbing agent and method for producing the same

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B65G-053/00   
미국특허분류(USC) 406/197; 406/046; 406/047; 406/198
출원번호 US-0593443 (2008-03-28)
등록번호 US-8596931 (2013-12-03)
우선권정보 JP-2007-089601 (2007-03-29)
국제출원번호 PCT/JP2008/056168 (2008-03-28)
§371/§102 date 20090928 (20090928)
국제공개번호 WO2008/120742 (2008-10-09)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Nixon & Vanderhye, PC
인용정보 피인용 횟수 : 11  인용 특허 : 35
초록
▼

A method includes the steps of: adding an organic surface cross-linking agent to a water absorbent resin having a cross-linked structure; adding a liquid permeability improving agent to the water absorbent resin concurrently with or after the addition of the organic surface cross-linking agent; and then adding a lubrication improving agent to the water absorbent resin. This provides a particulate water absorbing agent and a method for producing it, the particulate water absorbing agent being suitable for pneumatic transportation, suffering no decrease in...

대표
청구항
▼

1. A method for producing a particulate water absorbing agent including (i) a water absorbent resin having been subjected to a surface cross-linking treatment with use of an organic surface cross-linking agent and (ii) a liquid permeability improving agent, the method comprising the steps of: (a) providing a water absorbent resin by cross-linking and polymerizing an unsaturated monomer containing an acid group and/or its salt;(b) after the step (a), forming a surface cross-linked layer on the water absorbent resin by adding an organic surface cross-linki...

이 특허에 인용된 특허 (35)

  1. Tsubakimoto Tsuneo (Toyonaka JPX) Shimomura Tadao (Toyonaka JPX) Irie Yoshio (Nishinomiya JPX). Absorbent article. USP1987054666983.
  2. Hsueh Kesyin (Kobe JPX) Rezai Ebrahim (Kobe JPX) Tai Yung-Wei (Kobe JPX). Absorbent composites comprising a porous macrostructure of absorbent gelling particles and a substrate. USP1996075536264.
  3. Kajikawa, Katsuhiro; Nishioka, Toru; Fujimaru, Hirotama; Ishizaki, Kunihiko. Continuous production process for water-absorbent resin powder and powder surface detector used therefor. USP2004046727345.
  4. Pinschmidt ; Jr. Robert K. (Allentown PA) Vijayendran Bheema R. (Emmaus PA) Lai Ta-Wang (Taipei TWX). Crosslinked vinylamine polymer in enhanced oil recovery. USP1992025085787.
  5. Jonas, Gerd; Mertens, Richard; Frank, Markus. Highly swellable absorption medium with reduced caking tendency. USP2012088247640.
  6. Tai Eva F. (Midland MI). Method for making aggregates or clusters of water-swellable polymers having increased hydration rate over unassociated w. USP1994125374684.
  7. Shibata, Hirofumi; Torii, Kazushi. Method for manufacturing particulate water-absorbing agent and particulate water-absorbing agent. USP2011047919564.
  8. Lahrman Frank H. (Cincinnati OH) Roe Donald C. (Cincinnati OH) Berg Charles J. (Cincinnati OH). Method for producing compositions containing interparticle crosslinked aggregates. USP1996025492962.
  9. Kadonaga, Kenji; Dairoku, Yorimichi; Fujino, Shin-ichi; Okochi, Hiroko; Irie, Yoshio; Tahara, Hideyuki. Method for surface crosslinking water-absorbing resin and method for manufacturing water-absorbing resin. USP2010127851550.
  10. Mitchell,Michael A.. Method of manufacturing superabsorbent polymers. USP2008097429632.
  11. Dairoku, Yorimichi; Adachi, Yoshifumi; Nogi, Kozo; Inoue, Hiroki; Wada, Katsuyuki; Irie, Yoshio. Particulate water absorbent agent and production method thereof, and water absorbent article. USP2009097582705.
  12. Dairoku,Yorimichi; Adachi,Yoshifumi; Nogi,Kozo; Inoue,Hiroki; Wada,Katsuyuki; Irie,Yoshio. Particulate water absorbent agent and production method thereof, and water absorbent article. USP2009017473739.
  13. Wada,Katsuyuki; Ueda,Hiroko; Kimura,Kazuki; Ishizaki,Kunihiko. Particulate water-absorbing agent containing water-absorbent resin as a main component. USP2009037510988.
  14. Berg Charles J. (Cincinnati OH) Lahrman Frank H. (Cincinnati OH) Roe Donald C. (Cincinnati OH). Particulate, absorbent, polymeric compositions containing interparticle crosslinked aggregates. USP1995035397626.
  15. Brehm, Helmut; Hartan, Hans-Georg. Polymer composition and a method for producing the same. USP2005066911499.
  16. Herman Daniel F. (Princeton NJ) Kruse Uno (East Windsor NJ). Polymeric polyelectrolytes. USP1982084342858.
  17. Herman Daniel F. (Princeton NJ) Kruse Uno (Neptune NJ). Polymeric polyelectrolytes. USP1983084401795.
  18. Ishizaki,Kunihiko; Kajikawa,Katsuhiro. Process for continuous production of water-absorbent resin product. USP2007037193006.
  19. Toth Cheryl A. (Midland MI) Sheskey Paul J. (Midland MI). Process for making an absorbent composition. USP1994085339769.
  20. Matsumoto, Makoto; Takaai, Toshihiro; Dairoku, Yorimichi; Fujino, Shinichi; Matsumoto, Satoshi; Kato, Seiji. Process for producing water-absorbing resin. USP2012058188163.
  21. Choi Su B. (Daejeon KRX) Lee Huyng M. (Daejeon KRX) Kim Myung J. (Daejeon KRX) Jang Tae H. (Daejeon KRX). Processes for producing highly water absorptive resins. USP1994055314952.
  22. Dairoku, Yorimichi; Nogi, Kozo; Kanzaki, Syuji; Ishizaki, Kunihiko; Matsumoto, Koji; Mitsukami, Yoshiro. Production method and method for enhancing liquid permeability of water-absorbing resin. USP2013058436090.
  23. Matsumoto, Koji; Nogi, Kozo; Ishizaki, Kunihiko. Production method for water-absorbing resin. USP2013048410223.
  24. Nogi, Kozo; Ishizaki, Kunihiko; Matsumoto, Koji. Production method for water-absorbing resin. USP2012048148485.
  25. Smith, Scott J.; Joy, Mark C.; Hsu, Whei-Neen; Frank, Markus; Azad, Michael M.. Superabsorbent polymer with high permeability. USP2010097795345.
  26. Smith,Scott J.; Joy,Mark C.; Hsu,Whei Neen; Frank,Markus. Superabsorbent polymer with high permeability. USP2007017169843.
  27. Johnson Ian Michael (West Yorkshire GBX) Couldwell Pauline Lesley (West Yorkshire GBX). Superabsorbent polymers and products containing them. USP1997115684106.
  28. Herfert, Norbert; Wendker, Martin; Feise, Hermann Josef; Wolf, Hanno Rüdiger; Chiang, Bill; Woodrum, Guy Thomas. Superabsorbents having superior permeability and conveying properties. USP2011098017549.
  29. Eckert David ; Carrico Peter W. ; Mitchell Michael A.. Surface-treated superabsorbent polymer particles. USP2001056239230.
  30. Michael A. Mitchell ; David Eckert ; Anthony S. Tomlin. Surface-treated superabsorbent polymer particles. USP2002046376618.
  31. Michael A. Mitchell ; David Eckert ; Thomas W. Beihoffer. Surface-treated superabsorbent polymer particles. USP2002056391451.
  32. Mitchell, Michael A.; Eckert, David; Beihoffer, Thomas W.. Surface-treated superabsorbent polymer particles. USP2004106803107.
  33. Torii, Kazushi; Mitsukami, Yoshiro; Imura, Motohiro; Iwamura, Taku. Water-absorbing agent. USP2009127638570.
  34. Torii, Kazushi; Adachi, Yoshifumi; Kobayashi, Taishi; Watanabe, Yusuke; Ikeuchi, Hiroyuki; Kitayama, Toshimasa. Water-absorbing agent and production method thereof. USP2012088252715.
  35. Torii,Kazushi; Kitayama,Toshimasa; Harada,Nobuyuki. Water-absorbing agent and production process therefor, and water-absorbent structure. USP2009027495056.

이 특허를 인용한 특허 피인용횟수: 11

  1. Daniel, Thomas; Stueven, Uwe; Krüger, Marco; Blei, Stefan; Lopez Villanueva, Francisco Javier; Herfert, Norbert. Method for producing permeable water-absorbing polymer particles through polymerization of drops of a monomer solution. USP2014108865828.
  2. Bartl, Jürgen; Obermann, Christian; Buscher, Markus; Weis, Gerhard; Wolf, Alexander. Method for transporting expanded thermoplastic polymer particles. USP20180910065345.
  3. Buscher, Markus; Weis, Gerhard; Bartl, Jürgen; Obermann, Christian; Wolf, Alexander. Method for transporting expanded thermoplastic polymer particles. USP2017019546052.
  4. Wu, Jie; Graham, Lachlan; Farrow, John; Nguyen, Bon. Method, system and device for reducing friction of viscous fluid flowing in a conduit. USP2016119488316.
  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. USP2017109775927.
  6. 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. USP2015028952116.
  7. Wada, Katsuyuki; Nakashima, Yasuhisa. Particulate water-absorbing agent and production method for the same. USP2017069669386.
  8. 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. USP2015069062140.
  9. Nogi, Kozo; Nakamura, Masatoshi; Matsumoto, Koji; Awai, Kazuma. Transportation method for water-absorbing resin powder substance. USP2015119175142.
  10. Nakamura, Masatoshi; Miyake, Koji; Iwamura, Taku; Watanabe, Yusuke. Water-absorbent resin composition, method of manufacturing the same, and absorbent article. USP2018039926449.
  11. Sakamoto, Shigeru; Ikeuchi, Hiroyuki; Machida, Sayaka. Water-absorbing resin and method for manufacturing the same. USP2015079090718.

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