Abstract:
PROBLEM TO BE SOLVED: To provide a process for enhancement of the wet strength of water-absorbent cross-linked foams produced according to existing processes. SOLUTION: The process for the reduction of the residual monomer content and enhancement of the wet strength of articles formed from water-absorbent cross-linked polymer foams containing units derived from monoethylenically unsaturated acids comprises a step of treating the formed articles with at least 0.5 mass% of a polymer which contains primary and/or secondary amino groups and has the molecular weight of at least 300. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
A process for the reduction of the residual monomer content and enhancement of the wet strength of articles formed from water absorbent crosslinked polymer foams containing units derived from monoethylenically unsaturated acids, which comprises treating the formed articles with at least 0.5% by weight of a polymer containing primary and/or secondary amino groups and having a molar mass of at least 300, the formed foam articles thus obtainable and use of the wet strength enhanced formed foam articles in hygiene articles.
Abstract:
A process for the reduction of the residual monomer content and enhancement of the wet strength of articles formed from water absorbent crosslinked polymer foams containing units derived from monoethylenically unsaturated acids, which comprises treating the formed articles with at least 0.5% by weight of a polymer containing primary and/or secondary amino groups and having a molar mass of at least 300, the formed foam articles thus obtainable and use of the wet strength enhanced formed foam articles in hygiene articles.