Glycoxylated Starch Additive for Pulp Products

Abstract

A glyoxylate starch may be formed by dispersing a starch in a liquid to form a starch slurry. The starch may be one or more of a cationic starch, nonionic starch, and an anionic starch. 2-chloracetamide is added to the starch slurry mixture to form a first reaction mixture. The temperature of the first reaction mixture may then be raised, and then cooled to form a modified starch, and glyoxal may be added to the modified starch solution to form a second reaction mixture that may then be stirred to produce a glyoxylate starch.

What is claimed is: 
     
         1 . An aqueous glyoxylate starch, comprising:
 starch, a modifying agent, and glyoxal, wherein a weight ratio of water to starch of aqueous glyoxylate starch is from about 99.9:0.1 to about 1,000:500, and, wherein a weight ratio of the modifying agent to the starch of aqueous glyoxylate starch is from about 1:1 to about 1:1,000.   
     
     
         2 . The aqueous glyoxylate starch of  claim 1 , wherein:
 the starch is selected from the group consisting of cationic starch, anionic starch, and nonionic starch,   
     
     
         3 . The aqueous glyoxylate starch of  claim 1 , wherein: the modifying agent comprises a chloroacetamide. 
     
     
         4 . The aqueous synthesized glyoxylate starch of  claim 1  wherein: about 0.1 wt % to about 50 wt % of the aqueous glyoxylate starch is starch. 
     
     
         5 . The aqueous synthesized glyoxylated starch of  claim 1  wherein:
 the modifying agent comprises about 0.1 wt % to about 500 wt % of the aqueous glyoxylate starch. 
 
     
     
         6 . The aqueous synthesized glyoxylate starch of  claim 1  wherein:
 the aqueous synthesized glyoxylate starch is synthesized utilizing a chemical reaction between the starch and glyoxal. 
 
     
     
         7 . The aqueous synthesized glyoxylate starch of  claim 1 , wherein:
 the chemical reaction occurs at a reaction temperature of from about 1° C. to about 300° C.   
     
     
         8 . The aqueous synthesized glyoxylate starch of  claim 1 , wherein: a reaction time of the chemical reaction between starch and glyoxal to form the glyoxylate starch compound is from about 0.01 minutes to about 10,000 minutes. 
     
     
         9 . The aqueous synthesized glyoxylate starch of  claim 8 , wherein:
 a reaction time of the chemical reaction between starch and glyoxal to form the glyoxylate starch compound is from about 1.0 minutes to about 10,000 minutes.   
     
     
         10 . The aqueous glyoxylate starch of  claim 1  wherein: the aqueous glyoxylate starch is biodegradable. 
     
     
         11 . The aqueous synthesized glyoxylate starch of  claim 1 , wherein:
 a weight ratio of water to starch of aqueous glyoxylate starch is from about 99.9:1 to about 1,000:500.   
     
     
         12 . The aqueous synthesized glyoxylate starch of  claim 8 , wherein:
 the chemical reaction occurs at a reaction temperature of from about room temperature to about 300° C.   
     
     
         13 . The aqueous synthesized glyoxylate starch of  claim 1 , wherein:
 said aqueous synthesized glyoxylate starch is capable of being used as a strength additive for at least one product selected from the group consisting of pulp fiber products, and textiles.   
     
     
         14 . The aqueous synthesized glyoxylate starch of  claim 13 , wherein:
 said aqueous synthesized glyoxylate starch is capable of being used as a wet and dry strength additive for pulp fiber products, including paper, wipes, tissues, towels, napkins, paperboard, paper-based food containers, paper-based cups, double re-creped (DRC) items, and textiles.