Ion-sensitive, water-dispersible polymers, a method of making same and items using same
AssigneeKimberly-Clark Worldwide, Inc.
InventorsFrederick J. Lang, Yihua Chang, Franklin M. Chen, Pavneet S. Mumick, William S. Pomplun, Dave A. Soerens
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Abstract
The present invention is directed to ion-sensitive, water-dispersible polymers. The present invention is also directed to a method of making ion-sensitive, water-dispersible polymers and their applicability as binder compositions. The present invention is further directed to fiber-containing fabrics and webs comprising ion-sensitive, water-dispersible binder compositions and their applicability in water-dispersible personal care products.
Claims30
An ion-sensitive composition comprising a sulfonate anion modified acrylic acid terpolymer and a non-crosslinking poly(ethylene-vinyl acetate), wherein the sulfonate anion modified acrylic acid terpolymer comprises sulfonate anion-containing monomer units and acrylic acid monomer units, wherein the composition is insoluble in a neutral salt solution containing at least about 1 weight percent salt, said salt comprising one or more monovalent ions;
- and wherein the composition is soluble in water containing up to about 200 ppm of one or more multivalent ions.
An ion-sensitive composition comprising a first polymer formed from at least four monomers selected from acrylic acid, 2-acrylamido-2-methyl-1-propanesulfonic acid and alkali earth metal and organic amine salts thereof, butyl acrylate, and 2-ethylhexyl acrylate;
- and a second polymer comprising a non-crosslinking poly(ethylene-vinyl acetate);
- wherein the composition is insoluble in a neutral salt solution containing at least about 1 weight percent salt, said salt comprising one or more monovalent ions;
- and wherein the composition is soluble in water containing up to about 200 ppm of one or more multivalent ions.
An ion-sensitive composition comprising a sulfonate anion modified acrylic acid terpolymer having dispersed therein a non-crosslinking poly(ethylene-vinyl acetate), wherein the sulfonate anion modified acrylic acid terpolymer comprises sulfonate anion-containing monomer units and acrylic acid monomer units.
Dependencies are inferred from the claim text.