National Starch and Chemical Corporation

Stuart H Ganslaw

Howard G Katz

Stephen D Pastor

Frank A Nowak, Jr

Albert L Micchelli

Hot melt pressure sensitive adhesives are prepared by free-radical copolymerizing an acrylic-based comonomer(s) with allyl acrylate or methacrylate to produce a prepolymer with an ethylenically saturated backbone containing pendant allylic unsaturation which is then applied in fluid form to a substrate and thereafter subjected to electron beam curing.

Pressure sensitive hot melt adhesive curable by exposure to electron

The solubility of hair spray resins derived from copolymers of unsaturated monocarboxylic acids and vinyl or vinylidene monomers in alcohol-hydrocarbon propellent systems is substantially increased by use of specific long chain amines as neutralizing agents therein.

Hydrocarbon propelled aerosol hair spray compositions

A dry, solid, water-swellable, water-insoluble absorbent composition of matter comprises an ionic complex of a water-soluble anionic poly-electrolyte and a polyvalent metal cation. The composition is characterized by an ability to uncomplex at an elevated pH and recomplex at a lower pH.

Absorbent composition of matter

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.

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Piscataway, NJ, United States of America

Stuart H Ganslaw