Invention Application
US20130210947A1 Water-Absorbing Polymer Particles with High Free Swell Rate and High Permeability
有权
具有高自由溶胀速率和高渗透性的吸水聚合物颗粒
- Patent Title: Water-Absorbing Polymer Particles with High Free Swell Rate and High Permeability
- Patent Title (中): 具有高自由溶胀速率和高渗透性的吸水聚合物颗粒
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Application No.: US13763029Application Date: 2013-02-08
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Publication No.: US20130210947A1Publication Date: 2013-08-15
- Inventor: Matthias Weismantel , Ulrich Riegel , Thomas Gieger , Markus Braun , Michael A. Mitchell
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Main IPC: C08J9/14
- IPC: C08J9/14
Abstract:
A process for producing water-absorbing polymer particles with high free swell rate and high permeability by polymerization of an aqueous monomer solution or suspension to give an aqueous polymer gel, wherein a thermal blowing agent essentially free of inorganic acid anions is mixed into the polymer gel, and subsequent thermal drying of the polymer gel.
Public/Granted literature
- US09738769B2 Water-absorbing polymer particles with high free swell rate and high permeability Public/Granted day:2017-08-22
Information query
