Invention Grant
- Patent Title: Heat-treatment of water-absorbing polymeric particles in a fluidized bed at a fast heat-up rate
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Application No.: US14358792Application Date: 2012-12-18
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Publication No.: US10429128B2Publication Date: 2019-10-01
- Inventor: Herbert Gartner , Marc Hager , Harald Plochinger , Sabine Auernig , Hans-Peter Kohler , Elisabeth Lacker
- Applicant: EVONIK DEGUSSA GMBH
- Applicant Address: DE Essen
- Assignee: Evonik Degussa GmbH
- Current Assignee: Evonik Degussa GmbH
- Current Assignee Address: DE Essen
- Agent Bernard Lau; Linda S. Li; Jason S. Ngui
- Priority: EP12152795 20120127
- International Application: PCT/EP2012/075890 WO 20121218
- International Announcement: WO2013/110414 WO 20130801
- Main IPC: F26B3/00
- IPC: F26B3/00 ; B29B9/16 ; C08J3/00 ; C08J3/12
Abstract:
The present invention relates to a method for heat-treating water-absorbing polymeric particles at a temperature equal to or above 150° C. in a fluidized bed dryer at a fast heat-up rate, the use of a fluidized bed dryer for heat-treating water-absorbing polymeric particles in continuous or batch mode as well as to the heat-treated polymeric particles obtained by the method of the present invention.
Public/Granted literature
- US20140345154A1 HEAT-TREATMENT OF WATER-ABSORBING POLYMERIC PARTICLES IN A FLUIDIZED BED AT A FAST HEAT-UP RATE Public/Granted day:2014-11-27
Information query
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