In the production of an acrylate polymer by the steps of preparing a water-soluble unsaturated monomer having a ratio of neutralization in the range of 30 to 100 mol % and containing 50 to 100 mol % of an acrylate and then polymerizing the monomer, a method for the production of a hydrophilic resin which comprises using a water-soluble unsaturated monomer having a -hydroxy propionic acid (salt) content of not more than 1,000 ppm. The hydrophilic resin obtained by this method exhibits excellent physical properties and has only a small residual monomer content. Further, a residual monomer content neither occurs nor increases in any using conditions.

 
Web www.patentalert.com

< Polarizing element, and plane light source unit and liquid crystal display apparatus using the same

< Method and system for capturing, managing and disseminating manufacturing knowledge

> Humidifier for fuel cell

> Magnetic tape cartridge with brake release push rod extending through reel hole wider than only one reel gear pitch

~ 00238