Binders curable at room temperature with low blocking
AssigneeKimberly-Clark Worldwide, Inc.
InventorsMike Thomas Goulet, Tracy Ho Mathews, Stacey Lynn Pomeroy, Maurizio Tirimacco
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Abstract
Topically-applied binder materials for imparting wet strength to soft, absorbent paper sheets, such as are useful as household paper towels and the like, include an azetidinium-reactive polymer, such as a carboxyl-functional polymer, an azetidinium-functional polymer and, optionally, a component useful for reducing sheet-to-sheet adhesion (blocking) in the product. These binder materials can be cured at ambient temperature over a period of days and do not impart objectionable odor to final product when wetted.
Claims18
An aqueous binder composition comprising an unreacted mixture of a carboxylated vinyl acetate-ethylene terpolymer emulsion, a polyamide-polyamine-epichlorohydrin resin and an anti-blocking additive, wherein the amount of the polyamide-polyamine-epichlorohydrin resin relative to the amount of the carboxylated vinyl acetate-ethylene terpolymer emulsion is from about 0.5 to about 25 dry weight percent on a solids basis and wherein the amount of the anti-blocking additive is from about 1 to about 25 weight percent, on a solids basis, relative to the amount of the carboxylated vinyl acetate-ethylene terpolymer, wherein the anti-blocking additive is selected from the group consisting of glyoxal, gluteraldehyde and sugars.
An aqueous binder composition comprising an unreacted mixture of a carboxylated vinyl acetate-ethylene terpolymer emulsions, a polydiallylamine-epichlorohydrin resin and an anti-blocking additive, wherein the amount of the polydiallylamine-epichlorohydrin resin relative to the amount of the carboxylated vinyl acetate-ethylene terpolymer emulsion is from about 0.5 to about 25 dry weight percent on a solids basis and wherein the amount of the anti-blocking additive is from about 1 to about 25 weight percent, on a solids basis, relative to the amount of the carboxylated vinyl acetate-ethylene terpolymer, wherein the anti-blocking additive is selected from the group consisting of glyoxal, gluteraldehyde and sugars.
Dependencies are inferred from the claim text.