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Method for production of hydrophilic resin

  • US 20020161132A1
  • Filed: 03/29/2002
  • Published: 10/31/2002
  • Est. Priority Date: 06/10/1992
  • Status: Active Grant
First Claim
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1. A method for the production of a hydrophilic resin which comprises polymerizing a water-soluble unsaturated monomer containing 50 to 100 mol % of an acrylate having a ratio of neutralization in the range of 30 to 100 mol % and not more. than 1,000 ppm of β

  • -hydroxy propionic acid (salt).

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