Invention Grant
- Patent Title: Production method for producing water-absorbing polymer particles and belt dryer
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Application No.: US15571862Application Date: 2016-04-15
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Publication No.: US10648731B2Publication Date: 2020-05-12
- Inventor: Gerald Grünewald , Rüdiger Funk , Matthias Weismantel , Karl Possemiers
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Marshall, Gerstein & Borun LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@220e215d
- International Application: PCT/EP2016/058323 WO 20160415
- International Announcement: WO2016/180597 WO 20161117
- Main IPC: C08F2/00
- IPC: C08F2/00 ; F26B3/06 ; F26B17/04 ; F26B21/02 ; F26B21/12 ; C08F2/01 ; B01J20/28 ; B01J20/30 ; C08F2/06 ; C08J3/12 ; F26B25/06 ; B29B9/10 ; B29B9/12 ; C08F20/06
Abstract:
A production process for production of water-absorbing polymer particles including drying an aqueous polymer gel in a belt drier with a conveyor belt. The belt drier is formed with a drier setup substantially comprising the conveyor belt and an air recycling conduit downstream of the drier setup for air recycling, where recycled air is withdrawn from the drier setup and fed back to the drier setup via the air recycling conduit.
Public/Granted literature
- US20180135912A1 PRODUCTION METHOD FOR PRODUCING WATER-ABSORBING POLYMER PARTICLES AND BELT DRYER Public/Granted day:2018-05-17
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