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Process for the production of water adsorbing but water-insoluble cellulose ethers 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • C08B-011/00
  • C08B-011/20
  • C08B-011/193
  • C08B-015/10
출원번호 US-0522741 (1974-11-11)
우선권정보 DT-2357079 (1973-11-15)
발명자 / 주소
  • Holst Arno (Wiesbaden-Biebrich DT) Kostrzewa Michael (Wiesbaden DT) Lask Helmut (Wiesbaden-Schierstein DT)
출원인 / 주소
  • Hoechst Aktiengesellschaft (DT 03)
인용정보 피인용 횟수 : 26  인용 특허 : 0

초록

This invention relates to an improvement in the process for the production of water-adsorbing, but largely water-insoluble, cellulose ethers, in which cellulose is alkalized in the presence of alkali hydroxide and isopropanol as a reaction medium and is so reacted with an etherification agent that b

대표청구항

In the process for the production of water-adsorbing, but largely waterinsoluble, cellulose ethers, in which cellulose is alkalized in the presence of alkali hydroxide and isopropanol as a reaction medium and is so reacted with an etherification agent that by etherification only a water-soluble cell

이 특허를 인용한 특허 (26)

  1. Hubl Georg (Linz ATX) Scheuchenstuhl Willibald (St. Oswald ATX), Absorbing polymer.
  2. Brandt Lothar (Wiesbaden DEX) Holst Arno (Wiesbaden DEX) Kleiner Hans-Jerg (Kronberg DEX), Cellulose ethers and cellulose mixed ethers having at least one phosphorus-containing substituent, and process for their.
  3. Malson Tomas,SEX ; Lindqvist Bengt,SEX, Crosslinked hyaluronate gels, their use and method for producing them.
  4. Holst Arno (Wiesbaden DEX) Kostrzewa Michael (Wiesbaden DEX) Lask Helmut (Wiesbaden DEX), Hydrophilic articles of water-insoluble polymers.
  5. Brown Eric (Le Mans FRX) Boschetti Egisto (Chatou FRX) Corgier Monique M. (Saint Quen FRX) Touet Joel (Le Mans FRX), Hydrophilic copolymers, their preparation and their use in separation techniques.
  6. Luo, Mengkui; Neogi, Amar N.; Weerawarna, S Ananda; Dodd, Andrew J, Method for making carboxyalkyl cellulose.
  7. Okutsu, Munehisa; Ihara, Takeshi, Method for producing cellulose ether derivative.
  8. Holst Arno (Wiesbaden DEX) Kostrzewa Michael (Wiesbaden DEX) Lask Helmut (Wiesbaden DEX), Method of making hydrophilic articles of water-insoluble polymers.
  9. Hulsmann Hans L. (Wetter DE1) Renckhoff Gustav (Witten DE1), Method of preparing functionalized celluloses.
  10. Weerawarna,S. Ananda; Herriott,Carole W.; Jewell,Richard A.; Luo,Mengkui; Neogi,Amar N., Mixed polymer network.
  11. Lu, Ming; Yabusaki, Katsumi, Phosphoric ester of cellulose derivative and metal adsorbent comprising the same.
  12. Tsao ; George T. ; Chen ; Li Fu, Porous cellulose beads.
  13. Tsao George T. (West Lafayette IN) Chen Li Fu (West Lafayette IN), Porous cellulose beads and the immobilization of enzymes therewith.
  14. Lask Helmut (Wiesbaden DEX) Holst Arno (Wiesbaden DEX), Process for preparing swellable cross-linked carboxyalkylcelluloses, in the form of fibers, from cellulose hydrate and u.
  15. Cottrell Ian William ; Goswami Animesh ; Chowdhary Manjit Singh, Process for producing polysaccharides and their use as absorbent materials.
  16. Holst ; Arno ; Kostrzewa ; Michael ; Buchberger ; Gerhard, Process for the manufacture of absorbent, modified starch ethers and their use.
  17. Holst ; Arno ; Kostrzewa ; Michael, Process for the manufacture of swellable cellulose ethers.
  18. Holst ; Arno ; Lask ; Helmut ; Kostrzewa ; Michael, Process for the manufacture of water-absorbing cellulose ethers.
  19. Hammer Klaus-Dieter (Mainz DT) Klendauer Wolfgang (Wiesbaden DT) Bytzek Max (Naurod DT), Process for the production of thermoplastic synthetic materials and plastic shaping materials of chemically modified pro.
  20. Holst ; Arno ; Lask ; Helmut ; Kostrzewa ; Michael, Process for the production of water-adsorbing cellulose ethers.
  21. Holst ; Arno ; Lask ; Helmut ; Kostrzewa ; Michael, Process for the production of water-adsorbing cellulose ethers.
  22. Kundu, Patit Paban; Singh, Ratan Pal, Processes for cross-linking cellulose ethers under mild conditions.
  23. James Richard P. (Cranbury NJ), Substantive wetting agents for absorbent materials.
  24. Le-Khac Bi (Chester PA), Ultrahigh water-absorbing fiber forming composition.
  25. Le-Khac Bi (West Chester PA), Ultrahigh water-absorbing fiber-forming composition.
  26. Itoh Hiroshi (Yokohama JPX) Nitta Atsuhiko (Yokohama JPX) Tanaka Tomio (Tokyo JPX) Kamio Hideo (Odawara JPX), Urine absorbing and holding material.
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