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특허 상세정보

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Process for the production of highly water-absorbing but less water-soluble hydrogels

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C08L-063/00    C08F-020/20    C08F-120/20   
미국특허분류(USC) 525/116 ; 521/31 ; 521/34 ; 525/119
출원번호 US-0179609 (1980-08-19)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 32  인용 특허 : 8
초록

A highly water-absorbing but less water-soluble hydrogel is produced by polymerizing at least one hydrophilic ethylenically unsaturated monomer, e.g., ethylenically unsaturated carboxylic acid, ethylenically unsaturated sulfonic acid, or derivatives thereof, in the presence of a specific difunctional compound, e.g., polyethyleneglycol diglycidyl ether, polyethyleneglycol diacrylate, etc.

대표
청구항
▼

A process for producing a highly water-absorbing but less water-soluble hydrogel comprising polymerizing at least one hydrophilic ethylenically unsaturated monomer selected from the group consisting of a carboxylic acid containing an ethylenically unsaturated group, a sulfonic acid containing an ethylenically unsaturated group, and derivatives thereof to form a homopolymer or copolymer of said hydrophilic ethylenically unsaturated monomer, or a mixture of at least 50% of said hydrophilic ethylenically unsaturated monomer and less than 50% of an ethylenic...

이 특허에 인용된 특허 (8)

  1. Gross James R. (Lake Jackson TX). Absorbent articles and methods for their preparation. USP1976063966679.
  2. Koenig Harvey S. (Charlotte NC) Bryant George M. (Charleston WV). Acrylic acid-acrylate copolymer thickening agents. USP1981054268641.
  3. Kangas Donald A. (Midland MI) Neuendorf W. Robert (Midland MI). Coacervation of anion-containing aqueous disperse systems with amphoteric polyelectrolytes. USP1976033947396.
  4. Slovinsky Manuel (Woodridge IL). Grouting-soil conditioning systems using polyoxyethylene diacrylates. USP1981104295762.
  5. Stol ; Miroslav ; Stoy ; Vladimir ; Tuzar ; Zdenek. Method of producing glycol methacrylate or glycol acrylate polymers and copolymers. USP1978024076921.
  6. Masuhara Eiichi (Tokyo JA) Tarumi Niro (Tokyo JA) Tsuchiya Makoto (Musashino JA). Process for producing soft contact lenses. USP1976103988274.
  7. Zatmann ; Jean. Water-based coating compositions. USP1978024075148.
  8. Mueller Karl F. (New York NY) Good William R. (Yorktown Heights NY). Water-insoluble hydrophilic copolymers. USP1981074277582.

이 특허를 인용한 특허 피인용횟수: 32

  1. Riegel,Ulrich; Daniel,Thomas; Weismantel,Matthias; Elliott,Mark; Funk,Rudiger; Schwalm,Reinhold. (Meth)acrylic ester of alkenylene glycols and the use thereof. USP2008077405321.
  2. Allen Adrian S. (North Yorkshire GB2) Farrar David (West Yorkshire GB2) Flesher Peter (West Yorkshire GB2). Absorbent products and their manufacture. USP1990104962172.
  3. Awad, Rami Raimund; Lunzer, Florian; Gerlitz, Martin. Aqueous non-ionically stabilized epoxy resins. USP2009077560143.
  4. Nowakowsky Bernhard H. (Ludwigshafen DEX) Beck Juergen (Mannheim DEX) Hartmann Heinrich (Limburgerhof DEX) Vamvakaris Christos (Kallstadt DEX). Batchwise preparation of crosslinked, finely divided polymers. USP1989104873299.
  5. Froix Michael (3433 Woodstock La. Mountain View CA 94040). Clouding-resistant contact lens compositions. USP1989104871785.
  6. Levy, Guy Glickson; Williams, Carl Anthony; Rancourt, James David; Gerdon, Christine June. Composition and applicator for topical substance delivery. USP2003076592860.
  7. Boeckh Dieter (Limburgerhof DEX) Seelmann-Eggebert Hans-Peter (Schriesheim DEX) Hartmann Heinrich (Limburgerhof DEX) Kud Alexander (Eppelsheim DEX) Trieselt Wolfgang (Ludwigshafen DEX). Copolymers with monomers containing polyalkylene oxide blocks, preparation thereof and use thereof. USP1993125273676.
  8. Toh Huan K. (South Australia AUX). Cross-linkable casting compositions. USP1990034912185.
  9. Engel Dieter (Kelsterbach DEX) Rinno Helmut (Hofheim am Taunus DEX). Emulsion polymers free from emulsifiers and protective colloids, a process for their preparation and their use. USP1987054665142.
  10. Khosravi, Farhad; Dreher, James. Materials formable in situ within a medical device. USP2011017872068.
  11. Khosravi, Farhad; Dreher, James. Materials formable in situ within a medical device. USP2011108044137.
  12. Kondo Susumu (Kyoto JPX) Moriya Tetsuo (Hirakata JPX). Method of producing highly absorbent resins. USP1989054826917.
  13. Fujimaru, Hirotama; Goto, Eri; Ishizaki, Kunihiko; Motoyama, Atsushi. Method of producing polyacrylic acid (salt) water-absorbent resin. USP2013108552134.
  14. Ylitalo, Caroline M.; Wright, Robin E.; Scholz, Matthew T.; Stepanova, Narina Y.; Buchholz, Jessica M.. Methods of making shaped polymeric materials. USP2014048696975.
  15. Sawhney, Amarpreet S.. Methods of using in situ hydration of hydrogel articles for sealing or augmentation of tissue or vessels. USP2010017648713.
  16. Sawhney, Amarpreet S.. Methods of using in situ hydration of hydrogel articles for sealing or augmentation of tissue or vessels. USP2012018105622.
  17. Sawhney, Amarpreet S.. Methods of using in situ hydration of hydrogel articles for sealing or augmentation of tissue or vessels. USP2010087780980.
  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. 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.
  21. Wright, Robin E.; Ali, Mahfuza B.; Buchholz, Jessica M.; Haddad, Louis C.; Olson, Linda K. M.; Scholz, Matthew T.; Stepanova, Narina Y.; Svarovsky, Michael J.; Walter, Richard L.; Ylitalo, Caroline M.; Wolk, Diane R.; Zhang, Yifan. Polymeric beads and methods of making polymeric beads. USP2013088513322.
  22. Herold Robert D. ; Daughenbaugh Randy E. ; Wiedrich Charles R.. Polymerizable composition. USP1998095811503.
  23. Herold Robert D. ; Wiedrich Charles R.. Polymerizable composition. USP1998045739243.
  24. Messner, Bernfried; Hsu, Whei-Neen; Agne, Robert. Polymers that are cross-linkable to form superabsorbent polymers. USP2003056565981.
  25. Boeckh Dieter (Limburgerhof DEX) Seelmann-Eggebert Hans-Peter (Schriesheim DEX) Hartmann Heinrich (Limburgerhof DEX) Trieselt Wolfgang (Ludwigshafen DEX) Baur Richard (Mutterstadt DEX). Preparation of water-soluble copolymers based on monoethylenically unsaturated carboxylic acids. USP1990054925905.
  26. Alexander William (Naperville IL) Anderson Mark (Wheaton IL) Regan Barbara R. (Glenview IL). Process for preparing water-absorbing resins. USP1991014985518.
  27. Choi Su B. (Daejeon KPX) Lee Hyung M. (Daejeon KPX). Process for the preparation of a highly water absorptive resin from acrylic resin, epoxy crosslinker and hydrophilic sil. USP1991075032628.
  28. Alexander William (Naperville IL) Anderson Mark (Wheaton IL) Regan Barbara R. (Glenview IL). Surface treated absorbent polymers. USP1989044824901.
  29. Nakamura, Masatoshi; Miyake, Koji; Iwamura, Taku; Watanabe, Yusuke. Water-absorbent resin composition, method of manufacturing the same, and absorbent article. USP2018039926449.
  30. Obayashi Shigeji (Akashi JPX) Nakamura Morio (Kakogawa JPX) Yamamoto Takushi (Kobe JPX) Fujikake Masato (Kakogawa JPX). Water-absorbent resin having improved water-absorbency and improved water-dispersibility and process for producing same. USP1985034507438.
  31. Obayashi, Shigeji; Nakamura, Morio; Yamamoto, Takushi; Fujikake, Masato. Water-absorbent resin having improved water-absorbency and improved water-dispersibility and process for producing same. USP1985094541871.
  32. Sakamoto, Shigeru; Ikeuchi, Hiroyuki; Machida, Sayaka. Water-absorbing resin and method for manufacturing the same. USP2015079090718.

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