发明名称 PROCESS FOR PRODUCING SURFACE POSTCROSSLINKED WATER-ABSORBING POLYMER PARTICLES
摘要 The invention relates to a process for producing surface postcrosslinked water-absorbing polymer particles, wherein the water-absorbing polymer particles are coated, before, during or after the surface postcrosslinking, with at least one basic salt of a trivalent metal cation and a monovalent carboxylic acid anion, wherein the basic salt is applied in the form of a solution that is stabilized by a vicinal diol and/or an amide of the formula R1-CO-NR2R3 where R1 is not H and in which R1 is not H2N- if both R2 and R3 are H. Further, the invention relates to solutions of at least one basic salt that are stabilized by a vicinal diol and/or an amide of the formula R1-CO-NR2R3 where R1 is not H and in which R1 is not H2N- if both R2 and R3 are H.
申请公布号 US2013299739(A1) 申请公布日期 2013.11.14
申请号 US201313863738 申请日期 2013.04.16
申请人 BASF SE 发明人 GRILL JOSEPH;HAMILTON PATRICK;CHIANG WILLIAM G-J;HOELLER OLAF
分类号 B01J20/32 主分类号 B01J20/32
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