Water-dispersible, cationic polymers, a method of making same and items using same
AssigneeKimberly-Clark Worldwide, Inc.
InventorsYihua Chang, Frederick J. Lang, Kelly D. Branham, Erin McBride
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Abstract
The present invention is directed to triggerable, water-dispersible cationic polymers. The present invention is also directed to a method of making triggerable, water-dispersible cationic polymers and their applicability as binder compositions. The present invention is further directed to fiber-containing fabrics and webs comprising triggerable, water-dispersible binder compositions and their applicability in water-dispersible personal care products, such as wet wipes.
Claims24
A nonwoven fabric comprising fibrous material and a binder material, said binder material comprising a triggerable cationic copolymer containing quaternary ammonium groups, wherein said fabric is not substantially dispersible in a wetting solution containing at least about 0.5 weight percent of an insolubilizing agent and said fabric is substantially dispersible in tap water.
A fibrous substrate comprising:
- fibrous material;
- and
- a binder composition for binding said fibrous material into an integral web, said binder composition comprising a triggerable cationic copolymer containing quaternary ammonium groups,
- wherein said substrate is not substantially dispersible in a wetting solution containing at least about 0.5 weight percent of an insolubilizing agent and said substrate is substantially dispersible in tap water.
A wet wipe comprising:
- a fibrous material;
- a binder composition for binding said fibrous material into an integral web, said binder composition comprising a triggerable cationic copolymer containing quaternary ammonium groups;
- and
- said fibrous material being wetted by a wetting solution containing at least about 2 weight percent salt, wherein said fibrous material is not substantially dispersible in said wetting solution and said fibrous material is substantially dispersible in tap water.
A nonwoven fabric comprising fibrous material and a binder material, said binder material comprising a triggerable cationic copolymer containing quaternary ammonium groups;
- wherein the fabric has wet strength in an aqueous solution containing at least about 0.5 weight percent of an insolublizing agent;
- and wherein the fabric is dispersible in hard or soft water.
A wet wipe comprising:
- a fibrous material;
- a binder composition for binding said fibrous material into an integral web, said binder composition comprising a triggerable cationic copolymer containing quaternary ammonium groups;
- and
- said fibrous material being wetted by a wetting solution containing at least about 0.5 weight percent of an insolublizing agent, wherein said fibrous material is not substantially dispersible in said wetting solution and said fibrous material is substantially dispersible in tap water.
A nonwoven fabric comprising fibrous material and a binder material, said binder material comprising a triggerable, permanently cationically charged copolymer that retains its cationic charge independent of pH, wherein said fabric is not substantially dispersible in a wetting solution containing at least about 0.5 weight percent of an insolubilizing agent and said fabric is substantially dispersible in tap water.
Dependencies are inferred from the claim text.