Abstract: To manufacture highly disperse solids of crosslinked urea-formaldehyde polycondensation products consisting of primary particles with an average diameter not greater than 1 micron, an aqueous solution consisting essentially of water and a precondensate of urea and formaldehyde is converted into a crosslinked gel by the addition of sulphamic acid or a water-soluble ammonium hydrogen sulphate, in the course of which the molar ratio of formaldehyde:urea should be greater than 1.2 and not greater than 2.0 not later than at the time of the formation of the gel. The resulting gel is comminuted, dried and disintegrated. The powders are suitable for use as pigments, carriers and absorbents.

Abstract: Amine oxides of the formula R.sup.1 R.sup.2 R.sup.3 N.fwdarw.O, in which R.sup.1 is medium- to long-chain alkyl, R.sup.2 is short- to long-chain alkyl or polyethyleneglycol, R.sup.3 is short chain alkyl or polyethyleneglycol, with the provisos that the polyethylene glycol groups together have not more than 10 glycol units, and that R.sup.3 is polyglycol if R.sup.2 is medium- to long-chain alkyl, are useful as antistatic agents in lubricating agents for synthetic fibers. The amine oxides are distinguished by a good thermal stability, are low-volatile, non-corrosive, compatible with usual lubricating agents and soluble in aqueous and oily lubricating compositions.

Abstract: An improved process for preparing a friction particle results when a thermosettable resin is crosslinked in liquid suspension, producing a friction particle which is insoluble, infusible, has good friction stability and good braking fade resistance, and has a narrow particle size range. Also disclosed is a novel polyester friction particle prepared according to the above process or according to a conventional process.

Abstract: An aqueous fire-retardant composition capable of forming a foam layer and consisting ofI. an aqueous preparation comprisingA. a non-etherified amino-formaldehyde resin or its components or a mixture thereofB. at least one ammonium phosphate,C. a skeleton forming component andIi. a solution of at least one further amino-formaldehyde resin being at least partially etherified with at least one alcohol having 1 to 12 C-atoms and dissolved in an organic solvent,a construction supporting unit and an electrical cable unit with a coating of said composition.

Abstract: Acrylic synthetic fibers having excellent touch and luster properties are produced, wherein such fibers are prepared from a copolymer comprising 30 weight % or more of acrylonitrile, 70 weight % and less of vinyl chloride and/or vinylidene chloride and from 0 to 10 weight % of other polymerizable vinyl monomers. The copolymer also contains at least one metallic compound which is present in an amount of from 0.1 to 8.0 parts per 100 parts of copolymer and, additionally, at least one cellulose derivative which is present in an amount from 1.0 to 8.0 parts per 100 parts of the copolymer. Fibers produced from such copolymer have the touch and luster very similar to natural animal hair.

Abstract: Process for the preparation of aqueous homogeneous polymer emulsion which comprises mixing, generally with agitation or under shear conditions, water, surfactant, at least one polymer, e.g., cellulosic compounds, and at least one monomer, e.g., acrylics, methacrylics, styrene, etc., the polymer being soluble in said monomer, to form a dispersion of polymer-monomer particles in water; then subjecting said dispersion to conditions such that the monomer within the particles become polymerized by free radical polymerization thereby forming a substantially homogeneous blend of at least two polymers within the particles of the emulsion. The particles have on the average a diameter of 5 microns or less.

Abstract: An interleaving material for separating glass sheets and protecting them from scratching and staining during storage or transit comprises a porous finely divided support material, such as wood flour, impregnated with a weakly acidic material such as an organic acid (e.g. adipic acid) or an acid reacting salt, and fine particles of a chemically inert plastics material, e.g. a methyl methacrylate, preferably of slightly larger particle size than the acid-impregnated support material.

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: A minor amount of staple synthetic fibrous material such as nylon or dacron dispersed in a paint pigment of the type including magnesium silicate, titanium dioxide and/or calcium carbonate; or dispersed in a sprayable paint formulation of the type comprised of a liquid medium containing sizing and binding agents and particularly adapted for spray deposition on unfinished interior concrete surfaces and the like to provide a decorative sealing coating thereon having flame-retardant and/or acoustical properties.

Abstract: Flame-retardant cellulosic hardboards and particle boards are made by incorporating in the boards a synergistically acting flame-retarding composition containing at least about 30% by weight (calculated on the weight of the flame-retarded board) alumina hydrate in combination with one of the following compositions: melamine-formaldehyde-phosphate, urea-formaldehyde-phosphate or dicyandiamide-formaldehyde-phosphate.

Abstract: A thermosetting powder coating composition comprises a low molecular weight cellulose acetate butyrate as the major component, an aminoplast crosslinking agent, a latent acid crosslinking catalyst, and certain poly(alkylene glycols).

Abstract: Polyester of a trimellitic acid compound having an average molecular weight under about 4,000 and an acid number of at least 35 and starch paper sizing composition containing said polyester.

Abstract: Compositions suitable for use in bulking timber, and method for bulking timber comprising impregnating timber with said compositions, drying the treated timber, and curing the bulking compositions by heating, are provided. The composition comprises at least one modified polyol in which at least two of the free hydroxyl groups have been converted to -0-3-alkylenamido ether groups; an amino resin precursor containing reactive N-hydroxymethyl groups; a curing catayst for catalyzing the curing of the composition when heated; and a polar solvent capable of swelling wood. The starting polyol is preferably sucrose, and the amino resin is preferably ureaformaldehyde precursor. The compositions remain stable for prolonged periods of time at ambient temperatures, and timber bulked with the compositions in accordance with the method have excellent dimensional stability.

Abstract: Starch graft copolymers are prepared in aqueous media by reacting soluble sodium starch xanthate with a polymerizable vinyl monomer and hydrogen peroxide. Foamed rubbers reinforced with starch graft copolymers are prepared, without the need for mechanical frothing, by conducting the starch graft polymerization reaction in the latex emulsion. Nonfoamed rubber compositions are prepared in a similar manner.

Abstract: A coating composition for application to surfaces previously coated with lead paint or other poisonous substances comprising a paint containing a bitter tasting component such as denatonium benzoate. This coating composition has a repulsive taste and an appearance similar to ordinary paints so that it will impart an unpleasant taste experience to a child who mouths surfaces or chips coated with it and will condition the child to avoid mouthing surfaces or chips of similar appearance.

Abstract: A construction material and a process for the preparation thereof, which material comprises a plastic component constituted of a thermoplastic resin; and a filler component constituted of a mineral and/or organic filler at least equal in weight to the amount of the plastic component and the individual particles of which are coated or encapsulated with a polyethylene or polypropylene wax having a molecular weight of from 1,000 to 10,000, a thermofluid high molecular weight polymer, or a silicate coating. The composite material is low in cost and may be processed by conventional techniques, e.g., by molding, extrusion or machining, to produce a variety of useful products.

Abstract: There is disclosed a composition and process for applying an inorganic layer to a substrate which comprises dispersing at least one particulate, solid, inorganic substance in at least one thermally thinnable fugitive vehicle, the vehicle being viscous and non-drying at the temperature of substrate application and convertible to a low viscosity liquid on heating to a higher temperature and thermally removable on heating to a still higher temperature.

Abstract: A composition for preparing an electroconductive resin with excellent properties of electrical conductivity, resistance to organic solvent, mechanical strength, adhesiveness and film forming property, and said composition consisting of at least:Alkylene phosphoric esters, alkylene phosphate esters, alkylene sulfonic esters or alkylene sulfonate esters of acrylic acid or methacrylic acid; andA polyfunctional unsaturated compound having two to four polymerizable ethylenically unsaturated groups;And, if necessary, further containing a polymeric material as a film-forming agent and/or a polymerizable ethylenically unsaturated compound; and/orA polymerization initiator.

Abstract: Vinyl esters, such as vinyl acetate, are copolymerized, especially with ethylene or maleate or fumarate diester, to provide adhesives which develop water resistance through cure by including in the copolymer at least 0.5% of an N-methylol functional monoethylenic amide monomer etherified with a C.sub.2 -C.sub.8 volatile, alcohol. The monomers are stabilized during the copolymerization by an hydroxy functional protective colloid.

Abstract: Aqueous suspensions of polyolefin fibrids are prepared. To avoid foam formation and improve fiber-bonding, small amounts of anionic agents are added to the suspensions. The suspensions are suitable for the manufacture of paper-like or textile-like web structures distinguished by very good fiber bonding and good initial wet strength.