Invention Grant
- Patent Title: Classification process for superabsorbent polymer particles
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Application No.: US16630873Application Date: 2018-07-20
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Publication No.: US11883848B2Publication Date: 2024-01-30
- Inventor: Rüdiger Funk , Matthias Weismantel , Monte Alan Peterson , Patrick Neal Hamilton , Ronny De Kaey , 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: EP 183912 2017.07.31
- International Application: PCT/EP2018/069770 2018.07.20
- International Announcement: WO2019/025210A 2019.02.07
- Date entered country: 2020-01-14
- Main IPC: B07B13/16
- IPC: B07B13/16 ; B01J20/26 ; B07B4/08 ; B07B11/02 ; C08F20/06
Abstract:
The invention relates to a classification process for superabsorbent polymer particles, comprising classifying the water-absorbent polymer particles in a screen machine under reduced pressure wherein the pressure above the uppermost sieve is from 0 to 4.0 mbar per sieve higher than below the undermost sieve.
Public/Granted literature
- US20200147652A1 CLASSIFICATION PROCESS FOR SUPERABSORBENT POLYMER PARTICLES Public/Granted day:2020-05-14
Information query
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