Invention Grant
- Patent Title: Highly swellable absorption medium with reduced caking tendency
- Patent Title (中): 高度溶胀的吸收介质具有降低的结块倾向
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Application No.: US12718617Application Date: 2010-03-05
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Publication No.: US08247640B2Publication Date: 2012-08-21
- Inventor: Gerd Jonas , Richard Mertens , Markus Frank
- Applicant: Gerd Jonas , Richard Mertens , Markus Frank
- Applicant Address: DE Krefeld
- Assignee: Evonik Stockhausen GmbH
- Current Assignee: Evonik Stockhausen GmbH
- Current Assignee Address: DE Krefeld
- Agency: Smith Moore Leatherwood LLP
- Agent Philip P. McCann
- Priority: DE10052966 20001025
- Main IPC: A61F13/15
- IPC: A61F13/15
Abstract:
The present invention concerns highly swellable absorption mediums with a reduced caking tendency at high humidity and/or high temperatures, wherein a swellable polymer is coated with a non-ionic, nitrogen-containing surfactant and optionally a Lewis acid and then reacted by heating.
Public/Granted literature
- US20100160883A1 HIGHLY SWELLABLE ABSORPTION MEDIUM WITH REDUCED CAKING TENDENCY Public/Granted day:2010-06-24
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