WATER FLUID ABSORBING AGENT AND METHOD FOR ITS PRODUCTION Russian patent published in 2008 - IPC B01J20/26 

Abstract RU 2337750 C2

FIELD: chemistry.

SUBSTANCE: agent contains the particles of water-absorbing resin making primary component, the particles being produced by the method comprising the stage of polymerization of a water-soluble unsaturated ethylene-series monomer, and the particles featuring an intercrosslinked structure. The agent under consideration features the FCR making at least 0.2 g/g/s, CRS making 5 to 25 g/g, SFC making at least 400×10-7 cm3·s/g and humid-state porosity no less than 20%. In compliance with the invention, the method of producing the aforesaid agent comprises the following stages, i.e. producing a hydro gel from the monomer water solution containing the ethylene-series water-soluble unsaturated monomer and inner intercrosslinking agent at the amount of at least 0.2 mol % relative to the monomer and extruding the produced hydro gel through a perforated structure, the hole diameter varying from 0.3 to 6.4, for hydro gel to be ground.

EFFECT: updated method.

12 cl, 7 ex, 4 dwg, 1 tbl

Similar patents RU2337750C2

Title Year Author Number
POWDER-LIKE POLYMERIC PRODUCT AND ARTICLES MADE OF THIS PRODUCT 2000
  • Mertens Rikhard
  • Kharren Jerg
RU2322465C2
POWDERLIKE CROSS-LINKED ABSORBING POLYMERS, METHOD OF PRODUCTION AND APPLICATION THEREOF 2000
  • Mertens Rikhard
  • Kharren Jerg
RU2243238C2
WATER-ABSORBING RESIN BASED ON POLYACRYLIC ACID (SALT), METHOD OF PRODUCING SAID RESIN AND ACRYLIC ACID USED IN POLYMERISATION TO OBTAIN WATER-ABSORBING RESIN 2006
  • Fudzhimaru Khirotama
  • Ishizaki Kunikhiko
  • Nakakhara Sej
RU2385328C2
POWDER-LIKE, CROSS-LINKED POLYMERS ABSORBING AQUEOUS LIQUIDS AND BLOOD ALSO, METHOD FOR THEIR PREPARING AND THEIR APPLYING 2000
  • Rikhard Mertens
  • Jerg Kharren
RU2243975C2
POWDERED WATER-ABSORBING AGENT, CONTAINING WATER-ABSORBING RESIN AS BASIC COMPONENT 2005
  • Vada Katsujuki
  • Ueda Khiroko
  • Kimura Kazuki
  • Ishizaki Kunikhiko
RU2368625C2
METHOD OF OBTAINING WATER-ABSORBING RESIN BASED ON POLYACRYLIC ACID (SALT) 2006
  • Kavano Takaaki
  • Fudzhimaru Khirotama
  • Ishizaki Kunikhiko
  • Vada Katsujuki
RU2355711C1
METHOD OF PRODUCING MECHANICALLY STABLE WATER-ABSORBENT POLYMER PARTICLES 2007
  • Shtjuven Uve
  • Funk Rjudiger
  • Vajsmantel' Mattias
  • Khajde Vil'Frid
  • Krjuger Marko
RU2471812C2
PROCESS OF OBTAINING WATER-ABSORBING GUM POWDER 2004
  • Vada Katsujuki
  • Nakamura Masatosi
  • Kimura Kazuki
  • Isizaki Kunikhiko
RU2326892C2
POWDERED WATER-ABSORBING RESIN AND WATER-ABSORBING PRODUCT 2007
  • Vada Katsujuki
  • Nakamura Masatosi
  • Kimura Kazuki
  • Isizaki Kunikhiko
RU2369434C2
POLYMERS PRODUCING HYDROGEL AND ABSORBING AQUEOUS LIQUIDS, PRODUCTION METHOD AND APPLICATION OF MONOETHYLENOID-NONSATURATED C-C-CARBOXYLIC ACIDS CONTAINING α-TOCOPHEROL AS STABILISING ADDITIVE 2002
  • Nestler Gerkhard
  • Shreder Jurgen
  • Vikel' Shtefan
RU2329066C9

RU 2 337 750 C2

Authors

Ikeuti Khirojuki

Torii Kazusi

Sakamoto Sigeru

Ivamura Taku

Matida Sajaka

Dates

2008-11-10Published

2005-03-11Filed