Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Reexamination Certificate
2007-05-22
2007-05-22
Boykin, Terressa (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
C156S202000, C156S269000, C521S050000, C521S064000, C526S294000, C526S329000, C604S369000, C604S385010
Reexamination Certificate
active
10502135
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.
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U.S. Appl. No. 09/926,110.
Frenz Volker
Funk Rüdiger
Hähnle Hans-Joachim
Heider Wolfgang
Schornick Gunnar
BASF - Aktiengesellschaft
Boykin Terressa
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