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WATER-ABSORBING AND LIQUID-ABSORBING POLYMER 新技術説明会

Foreign code F120006453
Posted date 2012年4月23日
Country 世界知的所有権機関(WIPO)
International application number 2012JP001342
International publication number WO 2012/147255
Date of international filing 平成24年2月28日(2012.2.28)
Date of international publication 平成24年11月1日(2012.11.1)
Priority data
  • 特願2011-099948 (2011.4.27) JP
  • 特願2011-234458 (2011.10.25) JP
Title WATER-ABSORBING AND LIQUID-ABSORBING POLYMER 新技術説明会
Abstract

[Problem] To provide an environmentally friendly and novel liquid-absorbing polymer that can be used as a material in place of a cross-linked polyacrylic acid copolymer, makes use of a natural product, and has an absorbency superior to conventional products with respect to solutions containing metal cations and fluids containing proteins. [Solution] This invention provides a water-absorbing and liquid-absorbing polymer with which it is possible to absorb solutions containing metal cations and fluids containing proteins, said polymer being obtained by cross-linking carboxymethyl cellulose salt, having a substitution degree of 0.65-1.4 and a weight-average molecular weight of 84,600-125,000, with an epoxy compound. For example, epichlorohydrin or ethylene glycol diglycidyl ether may be used as the epoxy compound. The present invention resolves problems such as waste disposal, while providing a water-absorbing and liquid-absorbing polymer with excellent practical utility.

  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • INSTITUTE OF NATIONAL COLLEGES OF TECHNOLOGY,
  • KONO, HIROYUKI
  • Inventor
  • KONO, HIROYUKI
IPC(International Patent Classification)

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