Invention Grant
US09587081B2 Water-absorbing polymer particles with high free swell rate and high permeability
有权
具有高自由溶胀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): 具有高自由溶胀率和高渗透性的吸水聚合物颗粒
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Application No.: US14861409Application Date: 2015-09-22
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Publication No.: US09587081B2Publication Date: 2017-03-07
- 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
- Agency: Marshall, Gerstein & Borun LLP
- Main IPC: C08J9/14
- IPC: C08J9/14 ; C08G18/63 ; C08J9/18 ; C08J9/06 ; C08J9/16
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
- US20160009889A1 WATER-ABSORBING POLYMER PARTICLES WITH HIGH FREE SWELL RATE AND HIGH PERMEABILITY Public/Granted day:2016-01-14
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