Invention Grant
- Patent Title: Water-absorbing polymer particles
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Application No.: US15308382Application Date: 2015-05-07
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Publication No.: US09833766B2Publication Date: 2017-12-05
- Inventor: Markus Braun , Monica Haag , Stephan Deuerlein
- 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: EP14167497 20140508
- International Application: PCT/EP2015/060090 WO 20150507
- International Announcement: WO2015/169913 WO 20151112
- Main IPC: B01J20/26
- IPC: B01J20/26 ; C08F220/06 ; A61L15/24 ; A61L15/60 ; B01J20/28 ; C08J3/24 ; C08F2/10 ; C08F222/10

Abstract:
Crosslinked polymer particles having a) a proportion of particles having a particle size of 150 to 300 μm of at least 20% by weight, b) a free swell rate of the entirety of the polymer particles FSRoverall of at least 0.25 g/g·s, c) a difference ΔFSR of at least 0.15, d) a centrifuge retention capacity CRC of at least 25.0 g/g, and e) a permeability of the swollen gel bed SFC of at least 90×10−7 cm3·s/g are disclosed.
Public/Granted literature
- US20170050170A1 Water-absorbing polymer particles Public/Granted day:2017-02-23
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