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US 4,057,521 AGranted
Absorbent articles made from carboxylic synthetic polyelectrolytes having copolymerized N-substituted acrylamide crosslinker
AssigneeThe Dow Chemical Company
InventorJames R. Gross
Life of this patent
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Abstract
Water swellable absorbent articles, made from copolymers having a copolymerized crosslinker, together with methods for their preparation, and a composition containing a copolymerized crosslinker useful to make said articles are disclosed. The articles are crosslinked by heating and/or removing substantially all of the water from the precursor composition. The absorbent articles are useful as surgical sponges, diapers, tampons, meat trays, bath mats and the like.
Claims6
A solution useful to form water swellable articles of a carboxylic synthetic polyelectrolyte upon curing which comrpises
- 1. a solvent selected from the group consisting of water, lower alcohols and mixtures thereof,
- 2.
Dependencies are inferred from the claim text.