PROCÉDÉ DE FABRICATION DE PARTICULES POLYMÈRES ABSORBANT L'EAU PRÉSENTANT DES ZONES AVEC DES PARTICULES SOLIDES INORGANIQUES ET DES ZONES SENSIBLEMENT EXEMPTES DE PARTICULES SOLIDES INORGANIQUES

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专利权人:

The Procter & Gamble Company

发明人:

申请号：

EP17167080.5

公开号：

EP3391959A1

申请日:

2017.04.19

申请国别(地区):

EP

年份:

2018

代理人:

摘要：

A method for making water-absorbing polymer particles is provided and consists of a first aqueous polymerization solution comprising crosslinkers, polymerizable monomers and/or oligomers and inorganic solid particles, and a second aqueous solution comprising inorganic solid particles, crosslinkers and either polymerizable monomers and/or oligomers, or crosslinkable polymers. The average closest distance between two neighboring crosslinkers (RXL) from the first aqueous polymerization solution or from the second aqueous solution for a specific X-load of the water-absorbing polymer particle is calculated via the formula below: Rxl=rho_dry+x_Lrho_liqNA⋅∑iw_xliMr_CXLi13

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