发明申请
- 专利标题: Fine-Grained Water-Absorbent Particles With a High Fluid Transport and Absorption Capacity
- 专利标题(中): 具有高流体输送和吸收能力的细颗粒吸水剂颗粒
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申请号: US11665883申请日: 2005-10-14
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公开(公告)号: US20080125533A1公开(公告)日: 2008-05-29
- 发明人: Ulrich Riegel , Thomas Daniel , Dieter Hermeling , Mark Elliott
- 申请人: Ulrich Riegel , Thomas Daniel , Dieter Hermeling , Mark Elliott
- 申请人地址: DE Ludwigshafen
- 专利权人: BASF AKTIENGESELLSCHAFT
- 当前专利权人: BASF AKTIENGESELLSCHAFT
- 当前专利权人地址: DE Ludwigshafen
- 优先权: DE102004051242.6 20041020
- 国际申请: PCT/EP05/11073 WO 20051014
- 主分类号: C08K3/32
- IPC分类号: C08K3/32 ; C08L35/02 ; C08L35/00
摘要:
The invention relates to finely divided water-absorbing polymeric particles having high fluid transportation and absorption performance, the Centrifuge Retention Capacity (CRC) being not less than 26 g/g, the absorbency under a load of 4.83 kPa (AUL 1.7 psi) not less than 23 g/g and the Transportation Value (TV) not less than 15,000 cm3s, the Transportation Value (TV) being the product of Saline Flow Conductivity (SFC) and wicking absorption after 60 minutes (DA60) multiplied by 107, and wherein the wicking absorption after 60 minutes (DA60) is the weight of 0.9% by weight sodium chloride solution absorbed by 70 g of the water-absorbing polymeric particles in 60 minutes, wherein the water-absorbing polymeric particles are situated, during measurement, in a circularly round vessel which has an internal diameter of 6 cm and is sealed at its lower end by a sieve base of 36 μm mesh size, and the sieve base is in atmospheric contact with 0.9% by weight sodium chloride solution, processes for their preparation and also their use in hygiene articles and packaging materials.
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