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특허 상세정보

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Method for reconstituting superabsorbent polymer fines

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C08J-011/06   
미국특허분류(USC) 521/45 ; 521/405 ; 521/455 ; 528/499
출원번호 US-0286115 (1988-12-19)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 44  인용 특허 : 15
초록

A method for reconstituting superabsorbent polymer fines comprising the following steps: wetting the superabsorbent polymer fines sufficient to form a continuous amorphous gel of the fines; grinding the gel; and drying the gel which has been around to form a superabsorbent polymer material. Drying can optionally be followed by grinding and classification of the reconstituted superabsorbent polymer fines to desired sizes.

대표
청구항
▼

A method for reprocessing superabsorbent polymer fines, said superabsorbent polymer fines being selected from the group consisting of starch graft superabsorbent polymers, synthetic superabsorbent polymers, and crosslinked superabsorbent polymers, comprising the following steps: wetting said superabsorbent copolymer fines with water to a swollen state sufficiently to form a continuous amorphous gel of said fines; grinding said gel; and drying the ground gel particles to form a superabsorbent polymer material having a moisture content between about 1 to 1...

이 특허에 인용된 특허 (15)

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  5. Jones ; Duane A.. Agglomeration of starch-hydrolyzed polyacrylonitrile graft copolymer. USP1978104123397.
  6. Tanaka Koji (Okayama JPX). Aqueous microhydrogel dispersions, processes for producing the same, and processes for producing microhydrogels. USP1981064272422.
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  9. Brandt Kerryn A. (Cincinnati OH) Goldman Stephen A. (Cincinnati OH) Inglin Thomas A. (Cincinnati OH). Hydrogel-forming polymer compositions for use in absorbent structures. USP1987034654039.
  10. Alexander William (Naperville IL). Hydrogen enriched water swellable clay having reduced acid demand and stable at low pH. USP1985044514510.
  11. Ofstead Ronald F. (Maplewood MN). Polymer blends with high water absorption. USP1988094771089.
  12. Gilmour John B. (Whittier CA) Mehta Praful K. A. (Lomita CA) Mirliss Melvin J. (Long Beach CA) Nielsen Richard B. (Los Angeles CA). Process for agglomerating expanded perlite fines. USP1977124064071.
  13. Yamasaki Harumasa (Wakayama JPX) Harada Shoichiro (Wakayama JPX). Process for preparation of high water-absorbent polymer beads. USP1984054446261.
  14. Mikita Muneharu (Takatsuki JPX) Tanioku Shozo (Nara JPX) Touda Takayasu (Osaka JPX). Process for preparing dry solid water absorbing polyacrylate resin. USP1987104703067.
  15. Cramm Jeffrey R. (Winfield IL) Bailey Kristy M. (Naperville IL). Water-absorbent acrylic acid polymer gels. USP1987104698404.

이 특허를 인용한 특허 피인용횟수: 44

  1. Mitsukami, Yoshiro; Matsumoto, Makoto; Iwamura, Taku. Absorbent article comprising a modified water absorbent resin. USP2011017875362.
  2. Wang Lin,JPX ; Rezai Ebrahim,JPX ; Hayashi Yumiko,JPX. Absorbent articles comprising absorbent members comprising absorbent materials having improved absorbent property. USP1999015858535.
  3. Wang Lin,JPX ; Rezai Ebrahim,JPX ; Hayashi Yumiko,JPX. Absorbent materials having improved absorbent property and methods for making the same. USP2000086099950.
  4. Wang Lin,JPX ; Rezai Ebrahim,JPX ; Hayashi Yumiko,JPX. Absorbent materials having improved absorbent property and methods for making the same. USP1998125849405.
  5. Mitsukami, Yoshiro; Matsumoto, Makoto; Iwamura, Taku. Absorbent member comprising a modified water absorbent resin. USP2010067745507.
  6. Goldman Stephen A. (Wyoming OH) Haynes Nancy A. (Okeana OH) Mansfield Todd L. (Cincinnati OH) Plischke Manfred (Steinbach DEX) Retzsch Herbert L. (Cincinnati OH) Walker Trevor (Cincinnati OH) Young G. Absorbent members for body fluids having good wet integrity and relatively high concentrations of hydrogel-forming absor. USP1997025599335.
  7. John Collins Dyer ; Stephen Allen Goldman ; Herbert Louis Retzsch. Absorbent members for body fluids using hydrogel-forming absorbent polymer. USP2002086441266.
  8. Ikeuchi, Hiroyuki; Torii, Kazushi; Sakamoto, Shigeru; Iwamura, Taku; Machida, Sayaka. Aqueous-liquid-absorbing agent and its production process. USP2011077981833.
  9. Chou, Belle L.; Zhang, Ping. Elastomeric flexible article with absorbant polymer and manufacturing method. USP2014068752215.
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  11. Perez, Nicholas A.; Modregon, Henry; Perez, Leslie M.. Fire and smoke prevention compositions and the processes of making them. USP2016099446271.
  12. Spittle, Kevin S.; Bowers, Gary L.. Flocculant composition for dewatering solids laden slurries. USP20180810047221.
  13. Nogi, Kozo; Okuda, Sumio; Inoue, Keiji; Konishi, Kazumasa; Nishioka, Toru; Watanabe, Yusuke. Method for producing particulate water-absorbing agent composed principally of water-absorbing resin. USP2015069051067.
  14. Matsumoto, Koji; Okuda, Sumio; Ishizaki, Kunihiko. Method for producing particulate water—absorbing agent composed principally of water absorbing resin. USP2012038138292.
  15. Watanabe, Yusuke; Torii, Kazushi; Nogi, Kozo; Ishizaki, Kunihiko; Nakatsuru, Reiko; Sakamoto, Shigeru. Method for producing polyacrylic acid (salt) type water absorbent resin powder. USP2014078765906.
  16. Sakamoto, Shigeru; Irie, Yoshio; Ikeuchi, Hiroyuki; Nagasawa, Makoto; Ishizaki, Kunihiko; Machida, Sayaka. Method for producing water absorbent resin particle. USP2017039593212.
  17. Lindner, Torsten; Pinyayev, Aleksey Mikhailovich; Wnuk, Andrew Julian. Method of surface treating particulate material using electromagnetic radiation. USP2010077763202.
  18. 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.
  19. 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.
  20. Ishizaki,Kunihiko; Kitano,Takahiro; Adachi,Yoshifumi; Ueda,Hiroko; Wada,Katsuyuki. Particulate water absorbing agent with irregularly pulverized shape. USP2009017473470.
  21. Adachi,Yoshifumi; Kitayama,Toshimasa; Dairoku,Yorimichi. Particulate water-absorbent resin composition. USP2007107285615.
  22. 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.
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  24. Nagasawa,Makoto; Fujino,Shinichi; Dairoku,Yorimichi. Process for production of water-absorbing material. USP2008097429009.
  25. Tian, Gonglu; Smith, Scott J.; Pate-Linton, Janet. Recycling superabsorbent polymer fines. USP2012118309682.
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  34. Torii, Kazushi; Shibata, Hirofumi; Kimura, Kazuki; Nakashima, Yasuhisa; Imura, Motohiro; Ueda, Hiroko; Wada, Katsuyuki. Water absorbing agent, water absorbent core using the agent, and manufacturing method for water absorbing agent. USP2012068198209.
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  38. Dairoku,Yorimichi; Ishizaki,Kunihiko; Hatsuda,Takumi; Hitomi,Kazuhisa; Kajikawa,Katsuhiro; Yamada,Soichi. Water-absorbent resin granule-containing composition and production process for water-absorbent resin granule. USP2006127153910.
  39. Yorimichi Dairoku JP; Kunihiko Ishizaki JP; Takumi Hatsuda JP; Kazuhisa Hitomi JP; Katsuhiro Kajikawa JP; Soichi Yamada JP. Water-absorbent resin granule-containing composition and production process for water-absorbent resin granule. USP2002106458921.
  40. Torii,Kazushi; Iwamura,Taku; Ikeuchi,Hiroyuki; Machida,Sayaka. Water-absorbent resin having treated surface and process for producing the same. USP2008077402643.
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  44. Sakamoto, Shigeru; Ikeuchi, Hiroyuki; Machida, Sayaka. Water-absorbing resin and method for manufacturing the same. USP2015079090718.

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