Abstract: Stable polyurethane polymer latices are obtained by incorporating specified amounts of polyethylene glycol into the backbone of various polyurethane polymers. The polyurethane latices are non-ionic but can assume an anionic or cationic character by the addition of anionic or cationic emulsifying or surface active agents. The latices have wide utility, for example, as adhesives, coatings, textile sizes, binders, and in molding applications.

Abstract: A reagent for the modification of starch is prepared from the reaction of a 2,3-dihalopropionamide with a secondary amine. When starch is treated with this modifying reagent, a novel cationic starch characterized by the presence of a carboxamide group bound directly to a cationic amine substituent is produced.

Abstract: Anaerobic curing compositions useful as anaerobic adhesives and sealants are described. These compositions comprise mixtures of polymerizable acrylic and substituted acrylic monomers together with a catalyst comprising an alpha-amino sulfone compound.

Abstract: Chemically modified dialdehyde polysaccharides are used as gel strength enhancers for gelatin compositions. These modified polysaccharides are particularly useful as gel strength enhancers for gelatin compositions which have been extended with starch or dextrin.

Abstract: Anaerobic curing compositions useful as anaerobic adhesives and sealants are described. These compositions comprise mixtures of polymerizable acrylic and substituted acrylic monomers together with a catalyst comprising an alpha-hydroxy sulfone compound. As an alternate embodiment of the invention, certain organic peroxides may be added to the composition to further prolong the shelf life thereof and to increase the shear strength of the resulting adhesive bond.

Abstract: The present invention is directed to hot melt pressure sensitive adhesive compositions formed by copolymerizing at least one 3-(chlorinated aryloxy)-2-hydroxypropyl ester of an alpha, beta unsaturated carboxylic acid with acrylate based copolymerizable monomers, heating the resultant ethylenically saturated prepolymer to a temperature sufficient to render it fluid and flowable; coating onto a substrate and exposing to ultraviolet radiation.

Abstract: A two part adhesive composition characterized by rapid curing and long shelf life is disclosed. The adhesive composition comprises a first component of an acrylic monomer and saccharin or copper saccharinate and a second component comprising a p-toluenesulfinic acid salt which functions as an activator therefor.

Abstract: Highly substituted granular starches are prepared by reacting the starch in an aqueous system with a reagent capable of producing an acetal cross-linkage; reacting the resultant acetal cross-linked starch with a mono-functional esterifying or etherifying reagent under aqueous alkaline conditions and removing the acetal cross-linkages by treating under acid conditions. The highly substituted starches are particularly useful in operations, such as papermaking, wherein the cross-linkages can be removed and the starch readily dispersed during a relatively low pH starch cooking process.

Abstract: The aqueous dispersibility of a water-absorbent composition of matter is improved by a surface treatment which ionically complexes the surface thereof to a moderate degree. A dispersion is formed comprising a water-absorbent composition of matter based on an anionic poly-electrolyte, at least one polyvalent metal cation, and a dispersing medium in which the composition of matter is substantially insoluble. The dispersion is maintained within a given temperature range for a period of time sufficient to ionically complex the exposed surface of the composition of matter, and the dispersing medium is then removed. The product is characterized by a linkage density which is greater at the surface thereof than in the interior thereof and by the presence of ionic linkages at the surface thereof.

Abstract: A size mixture comprising a substituted cyclic dicarboxylic acid anhydride and polyoxyalkylene alkyl or alkyl-aryl ether or the corresponding mono- or di-ester is used to size paper products. In accordance with a preferred embodiment the liquid size mixture is added directly to the paper stock system without prior emulsification.

Abstract: A method for preparing wash-resistant antistatic synthetic fibrous substrates and compositions utilized therefor are disclosed. The method comprises applying a novel antistatic composition comprising a sulfonated polymer and a polyhydroxy organic compound to a synthetic fibrous substrate, curing the antistatic composition and thereby forming a wash-resistant antistatic coating for the substrate.

Abstract: The use in the manufacture of paper of additives comprising derivatives of starches having particular levels of water fluidity and which contain controlled proportions of cationogenic or cationic substituent groups as well as sulfo-succinate groups. The resulting paper containing the latter additives is characterized by improved retention of pigments and increased strength.

Abstract: An improved process for making paper is described which improvement concerns the mitigation or avoidance of a commonly occurring problem in the industry termed "wet press picking" by means of specified polymeric siloxane additives.

Abstract: Aqueous slurries or dispersions of starch are reacted with N,N'-disubstituted imidazolium salts under controlled conditions to yield starch esters. The starch ester derivatives can also be prepared by a reaction in non-aqueous solvents.

Abstract: Improved adhesive compositions useful in the manufacturing of corrugated boards are disclosed; said compositions being comprised of a mixture of: (a) a crosslinkable water dispersible polymer, (b) an ungelatinized starch, (c) a urea-formaldehyde resin, (d) an acidic metal salt, and (e) water.

Abstract: A reagent useful for the chemical modification of starch is prepared by the reaction of a 2,3-dihalopropionic acid or alkyl ester thereof with a secondry amine. The reaction of the reagent with starch, carried out in an aqueous solution under controlled conditions, produces novel amino acid ether derivatives which are characterized by the presence of both a cationic and an anionic substituent group on the same reactive site. The resulting starch ethers are characterized by their stability, their ability to form cooked pastes which are more resistant to gelling upon cooling and their lowered gelatinization temperatues.

Abstract: A shampoo composition is disclosed comprising an aqueous solution of (1.) a cationic polymer which is a water-soluble acid salt of an aminoalkyl ester of a carboxylic acid polymer, (2.) an amphoteric detergent, and, (3.) optionally, at least one nonionic surfactant or at least one ionic surfactant or a combination thereof, wherein any plurality of ionic surfactants utilized consists of those of the same ionogenic class.

Abstract: Starch-based alkaline curing corrugating adhesives, containing a novel crosslinking agent comprising the reaction product of a selected ketone, formaldehyde and a secondary amine, are useful in the manufacture of corrugated paperboard. These adhesives are characterized by their economy, their superior overall stability and their excellent wet strength performance.

Abstract: Laminates are formed by providing a pressure sensitive adhesive latex characterized by a Hamilton Beach grit value of 0.03 to 3.0 and an average particle size of less than 0.5 microns and spraying the adhesive onto the substrate to be laminated with pressure sufficient to atomize and destabilize the latex. This method is particularly suitable in applications wherein at least one substrate is a relatively porous material.

Abstract: Saturated polyester compositions stabilized against thermal degradation by the addition of small amounts of a synergistic stabilizing combination of a 5 or 6 membered, cyclic organic carbonate and an antioxidant selected from the group consisting of certain alkylated phenols, polyphenols, alkylphosphites, arylphosphites, aromatic amines and aromatic polyamines.