Patent ID: 7694900
Filing Date: 2010-04-13
Classification: B29C,B29K,C08J

Abstract:
1. A method for disintegrating a hydrate polymer, the method comprising: placing a hydrate polymer having a solid content in the range of 50-70 wt. % in a screw extruder, the hydrate polymer being formed of a hydrophilic unsaturated monomer having acrylic acid or a salt thereof, and disintegrating said hydrate polymer in the screw extruder, in which said hydrate polymer is disintegrated while supplying 0.1-30 parts by weight of freely-flowing water at a temperature in the range of 70-110° C., water steam at a temperature in the range of 100-220° C., or a mixture thereof, per 100 parts by weight of said hydrate polymer.