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公开(公告)号：ID28466A
公开(公告)日：2001-05-24
申请号：ID20001591
申请日：1999-02-19
Applicant: BASF AG
Inventor： FUNK RUDIGER , FRENZ VOLKER , STUVEN UWE , ENGELHARDT FRITZ , DANIEL THOMAS
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公开(公告)号：ES2141271T3
公开(公告)日：2000-03-16
申请号：ES95104872
申请日：1995-04-01
Applicant: BASF AG
Inventor： KLOTZSCHE HELMUT , REMMEL GUSTAV , RIEGEL ULRICH , STUVEN UWE
Abstract: Water-swellable hydrophilic (co)polymer powder contains additive(s) to reduce dust. The additive comprises silicone(s) and/or a total of less than 1 wt.% fatty alcohols or their esters, fatty acids or their opt. sulphated esters or amides, sulphosuccinic esters, polyols, polyglycols or their ethers, aliphatic hydrocarbons and/or paraffin oils. The individual additives have a vapour pressure of at most 0.1 mbar at 20 degrees C and m.pt. of max. 100 degrees C. Also claimed is a method of producing the treated powder.
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公开(公告)号：AU3253199A
公开(公告)日：1999-09-06
申请号：AU3253199
申请日：1999-02-18
Applicant: BASF AG
Inventor： FUNK RUDIGER , FRENZ VOLKER , STUVEN UWE , ENGELHARDT FRITZ , DANIEL THOMAS
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公开(公告)号：CA2319455A1
公开(公告)日：1999-08-26
申请号：CA2319455
申请日：1999-02-19
Applicant: BASF AG
Inventor： DANIEL THOMAS , ENGELHARDT FRIEDRICH , STUVEN UWE , FRENZ VOLKER , FUNK RUDIGER
Abstract: The invention relates to a method for the surface secondary cross-linking of water-absorbent polymers by treatment of the polymers with a solution for surface secondary cross-linking. According to said method the polymers during or after spraying are subjected to secondary cross-linking and dried by raising the temperature to 50-250 ~C and the cross-linking agent contains a boric acid ester with a bivalent or trivalent alcohol dissolved in an inert solvent. The invention also relates to water-absorbent polymers obtainable in accordance with the above method and to their use in hygiene articles, packing materials and non-woven materials.
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