Abstract: Disclosed herein is a starch based corrugating adhesive comprising modified starch, and methods for making such corrugating adhesive. In some embodiments, the corrugating adhesive may contain a carrier component comprising a gelatinized modified starch, and a suspended component comprising a granular modified starch. In some embodiments, the granular and gelatinized modified starch may be from the same base starch. In some embodiments, the modified starch is obtained from a starch having an amylose content between about 30% and less than 40%. Also disclosed herein are corrugated materials made using the corrugating adhesives described herein.

Abstract: This specification discloses suspensions and method for making the suspensions. The suspension comprises a suspension medium and is loaded with an insoluble solid. The suspension medium is an aqueous solution made at least one soluble polymer and at least one thixotropic gum. The suspension medium can be loaded with high levels of solids (more than 15% by weight of the medium). The resulting suspension is highly stable and has low viscosity. In embodiments the suspension exhibits no significant sedimentation for at least 3 months, and has a viscosity of less than about 20,000 cP. In an illustrative embodiment, the suspensions may be used to improve the properties of corrugating adhesives by adding to a corrugating adhesive a suspension that has suspension medium comprising polyvinyl alcohol and gellan and that suspends unmodified high amylose starch.

Abstract: Disclosed herein are methods of making high molecular weight, reduced viscosity starch pastes by enzymatic conversion. The methods provide a process for producing enzyme-thinned starch pastes that have improved molecular weight distributions, i.e., starch pastes having a more mid to high molecular weight content and less low molecular weight sugars than traditional enzyme converted pastes at similar solids and viscosity. In some embodiments, the methods utilize an enzyme capable of producing longer-chain oligosaccharides rather than low-molecular weight sugars. Other embodiments utilize a combination of enzymes to provide low viscosity pastes that are stabilized against setback and retrogradation. Furthermore, the methods may utilize a continuous starch enzyme cooker for the production of the high molecular weight, reduced viscosity starch pastes.

Abstract: This specification discloses suspensions and method for making the suspensions. The suspension comprises a suspension medium and is loaded with an insoluble solid. The suspension medium is an aqueous solution made at least one soluble polymer and at least one thixotropic gum. The suspension medium can be loaded with high levels of solids (more than 15% by weight of the medium). The resulting suspension is highly stable and has low viscosity. In embodiments the suspension exhibits no significant sedimentation for at least 3 months, and has a viscosity of less than about 20,000 cP. In an illustrative embodiment, the suspensions may be used to improve the properties of corrugating adhesives by adding to a corrugating adhesive a suspension that has suspension medium comprising polyvinyl alcohol and gellan and that suspends unmodified high amylose starch.

Abstract: This specification discloses suspensions and method for making the suspensions. The suspension comprises a suspension medium and is loaded with an insoluble solid. The suspension medium is an aqueous solution made at least one soluble polymer and at least one thixotropic gum. The suspension medium can be loaded with high levels of solids (more than 15% by weight of the medium). The resulting suspension is highly stable and has low viscosity. In embodiments the suspension exhibits no significant sedimentation for at least 3 months, and has a viscosity of less than about 20,000 cP. In an illustrative embodiment, the suspensions may be used to improve the properties of corrugating adhesives by adding to a corrugating adhesive a suspension that has suspension medium comprising polyvinyl alcohol and gellan and that suspends unmodified high amylose starch.

Abstract: This specification discloses suspensions and method for making the suspensions. The suspension comprises a suspension medium and is loaded with an insoluble solid. The suspension medium is an aqueous solution made at least one soluble polymer and at least one thixotropic gum. The suspension medium can be loaded with high levels of solids (more than 15% by weight of the medium). The resulting suspension is highly stable and has low viscosity. In embodiments the suspension exhibits no significant sedimentation for at least 3 months, and has a viscosity of less than about 20,000 cP. In an illustrative embodiment, the suspensions may be used to improve the properties of corrugating adhesives by adding to a corrugating adhesive a suspension that has suspension medium comprising polyvinyl alcohol and gellan and that suspends unmodified high amylose starch.

Abstract: Disclosed herein are methods for modifying carbohydrates using hydroxyl radicals. The hydroxyl radicals may be formed by the photolysis of peroxide in aqueous solution using UV light. Also disclosed are compositions and products comprising carbohydrates modified by the process.

Abstract: Disclosed herein are methods for modifying carbohydrates using hydroxyl radicals. The hydroxyl radicals may be formed by the photolysis of peroxide in aqueous solution using UV light. Also disclosed are compositions and products comprising carbohydrates modified by the process.

Abstract: A process for the oxidation of carbohydrate with UV light. The process comprises the steps of providing a carbohydrate, combining the carbohydrate with an oxidant and exposing the combined carbohydrate and oxidant to ultraviolet light. The process occurs at alkaline conditions.

Abstract: Disclosed herein are methods of making high molecular weight, reduced viscosity starch pastes by enzymatic conversion. The methods provide a process for producing enzyme-thinned starch pastes that have improved molecular weight distributions, i.e., starch pastes having a more mid to high molecular weight content and less low molecular weight sugars than traditional enzyme converted pastes at similar solids and viscosity. In some embodiments, the methods utilize an enzyme capable of producing longer-chain oligosaccharides rather than low-molecular weight sugars. Other embodiments utilize a combination of enzymes to provide low viscosity pastes that are stabilized against setback and retrogradation. Furthermore, the methods may utilize a continuous starch enzyme cooker for the production of the high molecular weight, reduced viscosity starch pastes.

Abstract: A process for the oxidation of carbohydrate with UV light. The process comprises the steps of providing a carbohydrate, combining the carbohydrate with an oxidant and exposing the combined carbohydrate and oxidant to ultraviolet light. The process occurs at alkaline conditions.

Abstract: A corrugating adhesive that improves the bonding of coated papers, including latex coated medium and linerboards. The corrugating adhesive may comprise a hydrocolloid portion of the adhesive that improves tack and bonding and buffers and absorbs caustic in the adhesive allowing higher caustic in the adhesive formula without premature gelling of the secondary starch portion. Also, methods for making waterproof or water resistant corrugated board from corrugated media and paper liner.

Abstract: A process for modifying carbohydrates by reaction with hydroxyl radicals. The hydroxyl radicals may be formed by the photoreaction of water, peroxide or other hydroxyl suitable chemical or electrochemical breakdown of water, peroxide or other hydroxyl suitable chemical. Also, compositions and products comprising carbohydrates modified by the process.

Abstract: A corrugating adhesive that improves the bonding of coated papers, including latex coated medium and linerboards. The corrugating adhesive may comprise a hydrocolloid portion of the adhesive that improves tack and bonding and buffers and absorbs caustic in the adhesive allowing higher caustic in the adhesive formula without premature gelling of the secondary starch portion. Also, methods for making waterproof or water resistant corrugated board from corrugated media and paper liner.

Abstract: A process for obtaining purified hemicellulose, cellulose and cellulose-hemicellulose complexes comprising the steps of adding alcohol to caustic liquor from alkali extraction of fiber to precipitate the hemicellulose and the simultaneous, or about simultaneous, density separation of hemicellulose from the caustic liquor. The alcohol transforms the soluble high molecular weight hemicellulose into a light precipitate which floats on top of the caustic liquor solution. The caustic liquor can be subjected to a second separation step whereby the insoluble components (e.g. cellulose and cellulose-hemicellulose complexes) can be removed from the caustic liquor.

Abstract: The invention concerns a process for extracting hemicellulose from fiber, such as corn fiber. The process comprises agitating at least fiber, caustic and optional added water at a moisture content from about 10% to about 60% at high speeds in a highly fluidized state. The process substantially instantaneously extracts the hemicellulose from the fiber. Heat may be applied in the process to extract and dry the hemicellulose substantially simultaneously.

Abstract: Fiber-based products and adhesives comprising the fiber-based products. The fiber-based products comprise carboxymethyl cellulose, carboxymethylated hemicellulose and carboxymethylated starch. The fiber-based product is obtained by simultaneously performing alkali extraction of hydrocolloid from the fiber and carboxylation, with a carboxymethylating agent, thereby converting extracted cellulose to carboxymethyl cellulose and also carboxymethylating some extracted hemicellulose, starch, and hemicellulose-cellulose complexes.

Abstract: A process for obtaining purified hemicellulose, cellulose and cellulose-hemicellulose complexes comprising the steps of adding alcohol to caustic liquor from alkali extraction of fiber to precipitate the hemicellulose and the simultaneous, or about simultaneous, density separation of hemicellulose from the caustic liquor. The alcohol transforms the soluble high molecular weight hemicellulose into a light precipitate which floats on top of the caustic liquor solution. The caustic liquor can be subjected to a second separation step whereby the insoluble components (e.g. cellulose and cellulose-hemicellulose complexes) can be removed from the caustic liquor.

Abstract: Fiber-based products and adhesives comprising the fiber-based products. The fiber-based products comprise carboxymethyl cellulose, carboxymethylated hemicellulose and carboxymethylated starch. The fiber-based product is obtained by simultaneously performing alkali extraction of hydrocolloid from the fiber and carboxymethylation, with a carboxymethylating agent, thereby converting extracted cellulose to carboxymethyl cellulose and also carboxymethylating some extracted hemicellulose, starch, and hemicellulose-cellulose complexes.

Abstract: The invention pertains to a corrugating adhesive comprising a starch, which may be cooked, hydrocolloid and polyvinyl alcohol complex. The corrugating adhesive is made by combining the hydrocolloid, starch and polyvinyl alcohol in the presence of a cross-linking agent and mixing to form a complex. The hydrocolloid may comprise hemicellulose.