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Patent Agency Ranking
公开(公告)号：AU626443B2
公开(公告)日：1992-07-30
申请号：AU6022990
申请日：1990-08-07
Applicant: BASF AG
Inventor： NIESSNER MANFRED , BECK JUERGEN , HARTMANN HEINRICH , KEMNA ANDREAS H , WICKEL STEFAN
Abstract: Process for improving the water absorption capacity of crosslinked, water-swellable polymers by treating water-containing, finely divided polymer gels having a solids content of 20 to 65% by weight at temperatures of at least 50 DEG C with steam, the solids content of the water-containing polymer gels being increased by not more than 30% by weight and the polymer gels then being dried in a conventional manner.
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公开(公告)号：DE59007322D1
公开(公告)日：1994-11-03
申请号：DE59007322
申请日：1990-07-26
Applicant: BASF AG
Inventor： NIESSNER MANFRED DR , BECK JUERGEN , HARTMANN HEINRICH DR , KEMNA ANDREAS H , WICKEL STEFAN DR
Abstract: Process for improving the water absorption capacity of crosslinked, water-swellable polymers by treating water-containing, finely divided polymer gels having a solids content of 20 to 65% by weight at temperatures of at least 50 DEG C with steam, the solids content of the water-containing polymer gels being increased by not more than 30% by weight and the polymer gels then being dried in a conventional manner.
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公开(公告)号：AT112293T
公开(公告)日：1994-10-15
申请号：AT90114333
申请日：1990-07-26
Applicant: BASF AG
Inventor： NIESSNER MANFRED DR , BECK JUERGEN , HARTMANN HEINRICH DR , KEMNA ANDREAS H , WICKEL STEFAN DR
Abstract: Process for improving the water absorption capacity of crosslinked, water-swellable polymers by treating water-containing, finely divided polymer gels having a solids content of 20 to 65% by weight at temperatures of at least 50 DEG C with steam, the solids content of the water-containing polymer gels being increased by not more than 30% by weight and the polymer gels then being dried in a conventional manner.
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公开(公告)号：DE3926169A1
公开(公告)日：1991-02-14
申请号：DE3926169
申请日：1989-08-08
Applicant: BASF AG
Inventor： NIESSNER MANFRED DR , BECK JUERGEN , HARTMANN HEINRICH DR , KEMNA ANDREAS H , WICKEL STEFAN DR
Abstract: Process for improving the water absorption capacity of crosslinked, water-swellable polymers by treating water-containing, finely divided polymer gels having a solids content of 20 to 65% by weight at temperatures of at least 50 DEG C with steam, the solids content of the water-containing polymer gels being increased by not more than 30% by weight and the polymer gels then being dried in a conventional manner.
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公开(公告)号：AU6022990A
公开(公告)日：1991-02-14
申请号：AU6022990
申请日：1990-08-07
Applicant: BASF AG
Inventor： NIESSNER MANFRED , BECK JUERGEN , HARTMANN HEINRICH , KEMNA ANDREAS H , WICKEL STEFAN
Abstract: Process for improving the water absorption capacity of crosslinked, water-swellable polymers by treating water-containing, finely divided polymer gels having a solids content of 20 to 65% by weight at temperatures of at least 50 DEG C with steam, the solids content of the water-containing polymer gels being increased by not more than 30% by weight and the polymer gels then being dried in a conventional manner.
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