초록 ▼

Water swellable absorbent articles, made from carboxylic polyelectrolytes, together with methods for their preparation, and a composition 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.

Water swellable absorbent articles, made from carboxylic polyelectrolytes, together with methods for their preparation, and a composition 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.

대표청구항 ▼

A method of preparing substantially water swellable polyelectrolyte fibers which comprises A. extruding a composition comprising 1. a solution of a carboxylic synthetic polyelectrolyte wherein the solution comprises water, lower alcohols, or mixtures thereof and about 5 to about 60% by weight of a c

A method of preparing substantially water swellable polyelectrolyte fibers which comprises A. extruding a composition comprising 1. a solution of a carboxylic synthetic polyelectrolyte wherein the solution comprises water, lower alcohols, or mixtures thereof and about 5 to about 60% by weight of a carboxylic polyelectrolyte, and 2. at least about 0.1% by weight based on the polyelectrolyte of a crosslinking agent reactive with carboxylate groups into a bath comprising lower alkyl ketones or chlorinated hydrocarbons to form an extruded fiber, B. separating the extruded fiber from said bath, and C. heating said fibers to a temperature greater than about 30°C. to crosslink said polyelectrolyte fibers.