Abstract: A process for the preparation of a phenolic resin which comprises reacting a phenol with a peroxidase or an oxidase enzyme and a peroxide in an organic solvent containing medium to generate phenolic radicals which react to form a phenolic resin.

Abstract: Conducting polymer films comprising a polymer matrix with intercalated, bonded conducting polymers, prepared from a polysaccharide matrix and the monomer of conducting polymer, are useful as anti-static materials, optical filters, solid electrolytes, electrodes and electrochemical sensors. The conducting polymers are polyheterocycles such as polyaniline, polythiophene and their derivatives.

Abstract: A novel class of materials and processes used in their preparation are described. These materials are comprised of man-made polymers grafted onto protein backbone, specifically onto protein backbone, which has been selectively modified to be used as adhesives, coatings and construction materials. Man-made polymers can be selected from a group including condensation polymers such as phenolics, epoxides, polyamides, thiols, or addition polymers such as acrylics, vinyls and polyolefins. Grafting can be accomplished either stepwise or from already preformed polymers. Grafts can also be formed with more than one polymer either after the first graft is formed or simultaneously. Furthermore grafts can be formed onto a modified or unmodified protein whose backbone has been reduced to a polyamine.

Abstract: A pharmaceutically or veterinarily acceptable amphipathic, non-cross linked linear, branched or graft block copolymer, which has a minimum weight average molecular-weight of 1000, in which the hydrophobic component is biodegradable or hydrolytically unstable under normal physiological conditions, and the hydrophilic component may or may not be biodegradable or hydrolytically unstable under such conditions, and which copolymer is self-dispersible in water; together with mixtures of such a copolymer and a drug, which may be water-soluble of water-insoluble, which mixtures are self-dispersible in water; and processes for the manufacture of such copolymers and such mixtures.

Abstract: Certain urea-sulfuric acid components, comprised of urea and sulfuric acid in a 1/4 to 7/4 molar ratio, contain a monourea adduct of sulfuric acid, which is catalytically active for promoting organic chemical reactions. The invention provides methods employing such urea-sulfuric acid components for catalyzing organic reactions such as oxidation, oxidative addition, reduction, reductive addition, esterification, transesterification, hydrogenation, isomerization (including racemization of optical isomers), alkylation, polymerization, demetallization of organometallics, nitration, Friedel-Crafts reactions, and hydrolysis. Novel catalysts are disclosed which involve combinations of the urea-sulfuric component with one or more transition metal halides and/or with one or more surfactants. The surfactant-containing compositions are particularly useful for the treatment of materials containing lipophilic substances.

Abstract: Derivatized polymers containing glycoside side chains linked to the polymer by ether, sulfide, or amine linkages are prepared by reacting a polymer containing alcohol, thiol, and/or amine groups with a glycidyl glycoside having the formula ##STR1## where (SAC).sub.n represents a saccharide residue with n being 1-20. Typical polymers include poly(vinyl) alcohol, poly(ethyleneimine), poly(dimethylaminopropyl methacrylamide), and proteins such as caseinate or gluten. Typical glycosides are glycoside of glucose and maltodextrin-10.

Abstract: Amino-sulfhydryl cross-linking reagents that are cleavable under mildly acidic conditions are disclosed. Also disclosed are methods of making the cross-linkers, as well as methods of using the cross-linkers, e.g., to deliver a biologically active substance across the membranes of selected cells in a heterogeneous cell population; once inside the cell the active substance is released, intact, by the transient, mild acidity of certain cell structures. Finally, a method of characterizing complex multi-chain protein structures is disclosed.

Abstract: Pharmaceutical compositions comprising a pharmacologically active polypeptide and a pharmacologically or veterinarily acceptable amphipathic, non-cross-linked linear, branched or graft block copolymer, which has a minimum weight average molecular weight of 5,000, in which the hydrophobic component is biodegradable and the hydrophilic component may or may not be biodegradable, the composition being capable of absorbing water to form a hydrogel when placed in an aqueous, physiological-type environment; copolymers suitable for use in said compositions; and method for the manufacture of such copolymers.

Abstract: A biologically active protein which is bonded to a water-insoluble porous copolymer based on N-vinylimidazole and/or substituted N-vinylimidazoles and monomers which can be copolymerized therewith, its preparation and its use for carrying out enzymatic reactions.