Flexible water absorbent polymer compositions comprising (A) unsaturated carboxylic acid, acrylic ester containing alkyl group 10-30 carbon atoms, additional monomer plus (B) aliphatic diol
AssigneeThe B. F. Goodrich Company
InventorDavid Chantrill Spaulding
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Abstract
Flexible films, fibers, and the like, of (1) potassium, ammonium and amine salts of unsaturated copolymerizable carboxylic acids, at least one alkyl acrylate or methacrylate ester wherein the alkyl group contains 10 to 30 carbon atoms and at least one of an alkyl acrylate or methacrylate wherein the alkyl group contains 1 to 9 carbon atoms, an acrylic or methacrylic nitrile or amide optionally with a small amount of a cross-linking agent and (2) an aliphatic glycol, rapidly absorb and retain large quantities of water and ionic fluids are useful in disposable nonwoven articles.
Claims20
A composition of (A) an interpolymer of monomers comprising from about 40 to 87 weight percent of an olefinically unsaturated carboxylic acid monomer, 2 to 20 weight percent of (1) an acrylic ester monomer of the formula ##STR10## where R' is hydrogen, methyl or ethyl and R contains 10 to 30 carbon atoms and 5 to 30 weight percent of (2) at least one other acrylic or methacrylic nitrile, amide or ester, and (B) greater than about 30 weight parts per 100 of interpolymer of an aliphatic dial.
Dependencies are inferred from the claim text.