Abstract: An unvulcanized, moldable composition comprising 100 parts by weight of a thermoplastic elastomer, at least about 10 parts by weight of an extender oil per 100 parts by weight of the thermoplastic elastomer and at least about 20 parts by weight of a solid, hygroscopic filler, having greater than 1 percent by weight of absorbed water and capable of retaining a substantial portion of such water at temperatures of at least 100.degree. C., per 100 parts by weight of the thermoplastic elastomer, the ratio of the oil to the hygroscopic filler being from about 0.3 to about 3. A method of flow molding by exposure to microwave energy while applying pressures below about 200 psi and a molded article of manufacture are also described.

Abstract: A gas permeable dimensionally stable contact lens material which is a transparent, optically clear methylmethacrylate cellulosic copolymer.

Abstract: In a molding composition comprising a polyoxymethylene, a melamine formaldehyde polycondensate and an antioxidation agent, the improvement wherein said melamine formaldehyde polycondensate is a finely divided, cross-linked, substantially water insoluble polycondensate comprising the precipitation product obtained by reacting formaldehyde and melamine in a molar ratio between 1.2:1 and 10.0:1, and wherein said polycondensate is in an amount of about 0.001 to about 30 percent by weight, related to the total weight of said composition.

Abstract: A fire retardant coating composition useful as a paint or as a mastic is composed of ultrafine pulverized fly ash, a low viscosity vinyl acrylic type emulsion polymer as a binder and water. The composition also preferably contains one or more of a dispersant, a defoamer, a plasticizer, a thickener, a drying agent, preservative, a fungicide and an ingredient to control the pH of the composition and thereby inhibit corrosion of any metal surface to which the composition is applied.

Abstract: A method for obtaining graft copolymers of cellulose or protein fiber with vinyl monomers, comprising the steps of impregnating cellulose or protein fiber with an aqueous solution of ferrous salt, removing excessive ions of ferrous iron, and grafting vinyl monomers to cellulose or protein fiber from an aqueous solution, aqueous emulsion or aqueous dispersion of a vinyl monomer, containing hydrogen peroxide and a reducing agent. The latter is hydrazine sulfate, sodium sulfide, glucose, sodium hypophosphite, sodium bitartrate or hydroquinone taken in an amount of 0.002 to 0.02 percent by mass. The method provides for a high rate of graft polymerization and rules out the formation of a free homopolymer in the reaction mixture. It can be carried out as a continuous and batch process.

Abstract: In an envelope opening process in which an aqueous solution of a chemical degradation agent, such as tartaric acid is applied to envelope edges and the envelope edges are then heated and subjected to a mild mechanical action, penetration of the degradation agent through the envelope paper at its edges is assured by including in the aqueous solution from 2.5% to 30% of a glycol ether, such as ethylene glycol ethyl ether.

Abstract: A coating composition for polyolefinic films, especially poly-propylene films, which consists essentially of a solution of a dry three-component polymeric system comprising:(a) a first component consisting of acrylic homopolymers, copolymers or mixtures thereof;(b) a second component consisting of a polyester resin obtained by condensation; and(c) a third component consisting of medium or low viscosity nitrocellulose or mixtures thereof.The coated products and the coating process are also covered.

Abstract: Aqueous coating compositions comprising latices containing a copolymer of vinyl acetate in the range of about 95-99.9% by weight and maleic anhydride in the range of about 0.1-5% by weight have been found to have improved starch binder compatibility. Vinyl acetate and maleic anhydride are polymerized in an aqueous medium in the presence of a free radical initiator and a surfactant which prevents the vinyl acetate-maleic anhydride copolymer from dissolving in the aqueous medium. The resulting latex coating compositions have a high solids content (greater than about 50% by weight) and a copolymer particle size of under 0.5 microns in addition to the excellent starch compatibility.

Abstract: Liquid cleaning and bleaching concentrate which generates copious foam on dilution with water in a mechanical foam generator. Contains modified polyacrylic acid salt, sodium tripolyphosphate, sodium hydroxide, sodium silicate, sodium hypochlorite sodium alkane sulfonate, and (optionally) sodium polyacrylate.

Abstract: A reagent for an immunological determination comprising water insoluble latex particles being formed from vinyl polymerizates and having free terminal functional groups of the formula: ##STR1## through which are bound an immunologically active material including materials for preparing this reagent and for utilizing this reagent for diagnostic purposes. The latex particles contain a core and an outer layer, said core being formed by polymerization of vinyl, or diene monomers or mixtures thereof with said polymerizates in said core carrying a functional group selected from group consisting of carboxyl, sulfonate or mixtures thereof and said outer layer being formed from vinyl polymerizates carrying said terminal functional group.

Abstract: A fabric sizing emulson composition is obtained by emulsion polymerization of a vinyl monomer in the presence of a cationic polymer and a non-ionic water-soluble polymer, the resulting vinyl polymer having a cationic nitrogen content of 0.004 to 0.2% by weight based on the vinyl polymer. The obtained sizing agent is used by diluting it with water to a relatively large extent.

Abstract: Paper is coated or sized with a composition which includes in addition to the used paper-treating agents one or more cationic compounds and a dispersion of a polymer soluble in an alkaline medium and consisting of an alkali metal salt or alkaline earth salt of an unsaturated carboxylic acid, or a copolymer obtained by polymerization or an unsaturated carboxylic acid with acrylic or methacrylic acid esters.

Abstract: Columns of polysaccharide, e.g., agarose, derivatives comprising covalently bonded gangliosides quantitatively adsorb the .sup.125 I-labeled cholera toxin of chromatographed samples. The most preferred derivatives are those wherein the gangliosides are coupled to "macromolecules" [native albumin, denatured albumin, poly(L-lysine) and poly(L-lysyl-DL-alanine) graft copolymers] which themselves are covalently bonded to the, e.g., agarose. The soluble ganglioside polymers can prevent the binding of .sup.125 I-labeled toxin to liver membranes as well as block completely the lipolytic activity of cholera toxin on fat cells, and thus are useful in the management of the manifestations of clinical cholera.

Abstract: There is disclosed an environmentally degradable plastic composition comprising an organic polymeric material having dispersed therein at least one amine compound as a readily autoxidizable organic substance.

Abstract: Small, round, bio-compatible microspheres capable of covalently bonding proteins and having a uniform diameter below about 3500 A are prepared by substantially instantaneously initiating polymerization of an aqueous emulsion containing no more than 35% total monomer including an acrylic monomer substituted with a covalently bondable group such as hydroxyl, amino or carboxyl and a minor amount of a cross-linking agent.

Abstract: Nitro-substituted monoazo dihydroperimidines which are useful as black dyes for ball-point pen inks are disclosed.

Abstract: A capsule solution is prepared by polymerizing urea and formaldehyde in the presence of gum arabic to thereby form a urea-formaldehyde resin wall around a hydrophobic oily solution. The use of gum arabic reduces the viscosity of the capsule solution, the capsule solution which is obtained is particularly suitable for preparing pressure sensitive recording sheets.

Abstract: A shaped article, especially a tubing, is disclosed which comprises a plasticized cellulose hydrate composition of high mechanical strength which is obtained by reacting a plasticized cellulose composition obtained by treating cellulose hydrate with a plasticity-enhancing amount of at least one plasticizing alkyl derivative which comprises an alkyl containing from about 8 to about 24 carbon atoms and which is selected from the group consisting of alkylamido-bis-dimethylene-triazinone-tetramethylol, alkylamino-bis-dimethylene-triazinone-tetramethylol, a substantially water insoluble ester of an aliphatic monocarboxylic acid containing from about 9 to about 25 carbon atoms, and a polyalcohol, such as glycerol or polyethylene glycol with a cyclic dimethylolurea derivative, and water and/or a plasticizer.

Abstract: Absorbent polymeric compositions are disclosed which are prepared by graft copolymerizing acrylonitrile onto a starch or corn flour-containing substrate followed by subjecting the graft copolymer to alkaline saponification. A polymeric composition of increased absorbency is obtained by isolating the saponified graft copolymer from solution as a colloidal precipitate subsequent to the slow addition of an alcohol to the solution.

Abstract: A compound containing an aromatic or .alpha.-carbonyl enediol functional group is effectively employed as a breaker for the gelled aqueous carrier fluid in aqueous epoxy resin slurries of the type suitable for use in emplacing a permeably consolidated particulate mass in communication with a permeable subterranean formation.