Abstract: Suspension-polymerized, crosslinked copolymers of methacrylic anhydride yield beads suitable as precursors for weak-acid and other ion exchange resins, affinity chromatography materials and other materials which require spherical polymers having reactive anhydride groups for their preparation. Both gel and macroporous beads of these copolymers may be made by the process of the invention.

Abstract: Suspension-polymerized, crosslinked copolymers of methacrylic anhydride yield beads suitable as precursors for weak-acid and other ion exchange resins, affinity chromatography materials and other materials which require spherical polymers having reactive anhydride groups for their preparation. Both gel and macroporous beads of these copolymers may be made by the process of the invention.

Abstract: A process is provided for suspension polymerization of water-soluble monomers in aqueous suspension to form spherical, unagglomerated polymer beads. The polymerization is conducted in the presence of a nonionic, substituted hydroxyalkylcellulose dispersant which is especially effective in protecting the monomer droplets from coalescence prior to their forming stable polymer particles.

Abstract: Low-color bisphenols may be produced by condensing phenol with ketones in the presence of a strong-acid cation exchange resin acting as an acid catalyst for the condensation reaction, and of a small amount, relative to the acid catalyst, of a weak-base anion exchange resin.

Abstract: A bile acid sequestrant having a crosslinked polymeric matrix and having branches supported on the polymeric matrix and providing bonding sites for binding bile acid conjugates to the sequestrant, pharmaceutical compositions containing the sequestrant for treatment of elevated plasma cholesterol level are described.

Abstract: Esters may be produced with a minimum formation of ether by-product by reacting an organic acid or ester with an alcohol at elevated temperatures in the presence of vinylaromatic polymer beads which are surface functionalized with strongly acidic functional groups, the inner volume of the polymer beads remaining unfunctionalized.

Abstract: Surfaces contaminated with chloromethylmethyl ether and bis-chloromethyl ether may be decontaminated by treating them with an aqueous solution of a basic organic amine, for example a tertiary amine, a nonionic surfactant and an alkali-metal hydroxide.

Abstract: A method for oxidizing hydrocarbon compounds comprising passing a mixture of the hydrocarbon compound and excess oxygen over a catalyst comprising a carbonaceous substrate doped with a compound selected from the group consisting of metal oxide, metal oxyhalide, and precursors which form metal oxide and metal oxyhalide, and blends thereof under mild reaction conditions. The temperature of the reaction is below about 300.degree. C.

Abstract: Polymer is recovered by ultrafiltration from a whitewater waste stream generated during the production of a polymer latex. The whitewater stream is circulated through an ultrafiltration system in laminar flow, under conditions of shear insufficient to destabilize the whitewater emulsion, and the recovered polymer is in the form of an emulsion which may be blended at significant levels into the original polymer latex without degrading its performance properties.

Abstract: A process for decontaminating a surface contaminated with a toxic agent in which the surface is contacted with a sorbent selected from the class consisting of a carbonaceous resin which contains a strong base in its pores, a macroreticular ion exchange resin which has a strong base hydroxide functionality and which contains water in its pores or a macronet resin which has been impregnated with a Lewis acid and then removing the toxic agent from the surface thereby decontaminating the surface.

Abstract: A process for making porous polymeric particles having high surface area includes suspending a discontinuous organic phase in an continuous aqueous phase, wherein the organic phase includes an ethylenically unsaturated monomer, a water soluble phase extender and a surfactant in an amount effective to solubilize the water soluble phase extender in the monomer and wherein the aqueous phase includes a diffusion barrier agent for limiting mass transfer of the phase extender from the organic phase to the aqueous phase, and then polymerizing the ethylenically unsaturated monomer to form the porous polymeric particles.

Abstract: A nontoxic polymer comprising a backbone having a pendant groups which have sites which are capable of forming ionic bonds and sites capable of forming hydrogen bonds with respective receptive sites on the anions of conjugate acids formed by the reaction of bile acids with glycine and of bile acids with taurine, preferred polymers including polymeric amides, and pharmaceutical compositions containing the same for treatment of hypercholesterolemia.

Abstract: Polymer particles in a size range between 2 and 15 micrometers, and having a refractive index close to, but not identical with, that of a matrix polymer and optionally having one or more enclosing shells, the outer shell being compatible with the matrix polymer, impart light-diffusing properties to the matrix polymer without degrading its physical properties, while the particles having a closer refractive index match to the matrix polymer impart gloss reduction to the surface of the matrix polymer.

Abstract: Strongly acidic cation-exchange resin beads made by functionalizing jetted, suspension-polymerized, crosslinked, styrenic copolymer beads with sulfonic acid groups produce an unexpectedly high level of conversion when catalyzing condensation reactions, particularly the condensation of phenol with aldehydes or ketones to form bisphenols.

Abstract: Highly crosslinked styrenic copolymers are treated to enhance their surface area by reacting residual vinyl groups in the copolymers in the presence of water or other non-swelling liquid and a Lewis-acid catalyst at elevated temperature

Abstract: The walls of fused-silica capillary columns used for capillary zone electrophoresis and micellar electrokinetic capillary chromatography may be deactivated with polysiloxanes, polysilazanes and other silicone polymers to permit more effective separations without eliminating electro-osmotic flow within the columns.

Abstract: Polymer is recovered by ultrafiltration from a whitewater waste stream generated during the production of a polymer latex. The whitewater stream is circulated through an ultrafiltration system in laminar flow, under conditions of shear insufficient to destabilize the whitewater emulsion, and the recovered polymer is in the form of an emulsion which may be blended at significant levels into the original polymer latex without degrading its performance properties.

Abstract: Uniformly sized polymer particles of 1-50 .mu.m diameter are made by gradually combining a water-insoluble monomer mixture with an aqueous dispersion of emulsion-polymerized polymer particles in the presence of a dispersion stabilizer and an oil-soluble, free-radical polymerization initiator.

Abstract: Polymer blends of a) polymers containing predominantly mers of(meth)acrylates and/or glutarimides with b) up to about 40 weight percent of polymers having greater than about 50 mol % vinyl alcohol mers exhibit useful barrier properties to oxygen and other environmental gases, while maintaining or enhancing physical properties and clarity.

Abstract: The bonded phases generated from the reaction of aliphatic and aromatic azidosilanes with silica gel are suitable for use as packings in solid phase extraction columns for cleanup of urine samples for analysis of acid metabolites of cannabinoids. Such bonded phases are unique in their ability to selectively retain the acid metabolites of cannabinoids from a urine sample matrix.