Abstract: A water reducible epoxy ester is prepared by reacting an epoxy resin, preferably a diglycidyl ether of bisphenol A, with a monocarboxylic acid (C.sub.8 -C.sub.18) and a dibasic acid (e.g., azelaic acid) followed by reaction with trimellitic anhydride and neutralization of free carboxyl groups. This material is dispersed in an aqueous vehicle, applied to a metal substrate, and baked.

Abstract: Polyurethane and vinyl polymer composites are rapidly prepared without the requirement of the application of an external source of heat by the admixture of a composition comprising(A) a polyether polyol having an equivalent weight of 30-250, such as an adduct of glycerine with propylene oxide;(B) an organic polyisocyanate, such as toluene diisocyanate;(C) an ethylenically unsaturated monomer, such as styrene;(D) a catalyst for polymerizing ethylenically unsaturated monomers such as tertiary butyl perbenzoate; and(E) a catalyst for urethane formation such as lead octoate.Foams may also be prepared by adding an appropriate foaming agent.

Abstract: Water-based coating compositions for use as internal sanitary liners for metal containers containing beer, carbonated and non-carbonated soft drinks, and fruit juices consist essentially of aqueous dispersions of amine-solubilized interpolymers, and interpolymers being formed from substituted carboxylic acid amide units; ethylenically unsaturated acid units; hardening units from monomers such as styrene, vinyl toluene or alkyl methacrylates having from 1 to 4 carbon atoms and flexibilizing units from certain alkyl acrylates or methacrylates. The interpolymers are solubilized by neutralizing the acid units of the interpolymer with monomeric amines. In order to produce a stable composition, the amount of amine utilized in neutralizing the acid groups of the interpolymer should be sufficient to produce at least 0.200 milliequivalents of salt per gram of resin solids.

Abstract: A process is provided for making an anionic polyurethane wherein a monomeric, aliphatic, dihydroxyl compound having an aliphatic substituent containing at least 10 carbon atoms is reacted with an organic polyisocyanate to form an adduct having terminal NCO groups, and the resulting adduct is reacted with an aliphatic monomeric diol chain extender containing an acid group which is capable of salt formation or a salt group. If the chain extender contains an acid group, the chain extended polyurethane is reacted with a basic compound to form a salt. The product of the invention may be used to size paper.

Abstract: A heat-curable, aqueous coating composition comprises a polymer having pendant primary and/or secondary amine groups and a cross-linking agent having alpha-, beta-ethylenically unsaturated carbonyl groups in aqueous dispersion. The amine groups are protonated to render the polymer water dispersible. In one preferred embodiment, the coating composition is useful in cathodic electrocoating.

Abstract: A novel class of water-dispersible urethane resin coating compositions is prepared from triglyceride oils by a three-step, one kettle process. The steps of preparation are all characterized by low energy reaction conditions and the resultant coating compositions are unexpectedly water-dispersible at acid values as low as about 30.

Abstract: Rigid isocyanurate urethane polymers useful for insulation purposes and characterized by unexpected and significantly superior thermal stability are achieved by incorporation therein of 2,3-dibromo-2-butene-1,4-diol, antimony oxide and hydrated alumina.

Abstract: A process for producing an aqueous dispersion of ethylene-vinyl acetate copolymer containing no formalin by emulsion-polymerizng ethylene and vinyl acetate and optionally other copolymerizable vinyl monomers in the presence of a redox catalyst consisting of an oxidizing agent and a reducing agent, which is characterized in that a reaction product of a glyoxal compound and an alkali metal, ammonium or zinc salt of a reductive sulfur oxide is used as the reducing agent for the redox catalyst, in which process the polymerization temperature is easily controlled.

Abstract: Process for the production of a stable polymer emulsion by polymerizing a radical-polymerizable monomer having an unsaturated bond in the presence of a water-soluble polymer containing monomer units consisting essentially of an ethylenically unsaturated carboxylic acid or salts thereof, and an ethylenically unsaturated sulfonic acid or a salt thereof and an anionic surface active agent. This polymerization takes place in an aqueous medium at a pH not higher than 4 in the presence of a water-soluble catalyst. The polymer emulsion of the present invention is much more stable chemically and mechanically than conventional polymer emulsions and the polymers produced by applicants' process have an extremely small particle size making the emulsions immediately suitable for a variety of purposes.

Abstract: An improved process for preparing polyformals is provided which comprises condensing an aliphatic diol, in which the hydroxyl groups are separated by at least four carbon atoms, with an essentially stoichiometric amount of formaldehyde in the presence of a Bronsted acid catalyst and contacting the condensation product with an organic epoxide in an amount sufficient to react with the residue of said catalyst.

Abstract: A coating composition comprises a dispersion of a fluorocarbon polymer in an inert diluent having dissolved, or preferably dispersed, therein a low molecular weight (RV less than 0.25) polyethersulphone or precursor thereto.

Abstract: Water soluble polymers dispersed in a water-in-oil emulsion are treated to reduce the water content thereof to provide a polymer dispersed in oil which is stable to coagulation or agglomeration during subsequent treatment. The composition can be chemically modified and/or made self dissolving in water by addition of surfactant without polymer agglomeration.

Abstract: A polyurethane elastomer exhibiting a low glass transition temperature is provided, which comprises the reaction product of (a) a polyurethane prepolymer having terminally reactive isocyanate groups, prepared by reaction of a polymeric diol with a stoichiometric excess of 2,4-tolylene diisocyanate, 2,6-tolylene diisocyanate or a mixture of tolylene diisocyanates containing a major proportion of the 2,4-isomer, with (b) from 80 to 110% of the stoichiometrically required amount of 2,6-dichloro-p-phenylene diamine, and (c) from about 0.01 to 1 part per hundred of prepolymer of a conventional polyurethane catalyst.

Abstract: Improved thermoplastic compositions comprising a particulate reinforcing filler blended with polypivalolactone, and a process for producing these compositions.

Abstract: An aqueous setting solution for dental glass ionomer cements comprising 45 to 60% of polyacrylic acid or acrylic acid copolymer and 7 to 25% of one or more of polybasic carboxylic acids based on the total weight.

Abstract: A flame retardant isocyanurate resin is produced by polymerizing a polyfunctional isocyanate compound with a polyfunctional epoxy compound at a ratio of 0.05 - 0.2 equivalent of the polyfunctional epoxy compound per one equivalent of the polyfunctional isocyanate compound at a pressure of 1 - 800 kg/cm.sup.2 (gauge) at a temperature of 100.degree. - 250.degree. C in the presence of an organic isocyanate polymerization catalyst.

Abstract: The invention relates to polyamino-amide hardeners for epoxy resins, the hardeners being the product resulting from the limination of at least one mole of water per acid equivalent from a mixture of:90 to 60 parts of at least one unsaturated monomeric fatty acid having at least 12 carbon atoms,10 to 40 parts of an acid having a molecular weight less than 20020 to 80 parts of a polyalkylene-polyamine, and80 to 20 parts of isophorone diamine, the relative proportions of all the acid products with respect to all the amine products being from 1 to 2 gramme equivalents of acid function per gramme molecule of amine.The invention also relates to a method of hardening epoxy resins using the above hardeners.

Abstract: Copolymers of crotonic acid are purified, to remove monomeric crotonic acid, by extracting the copolymers with water at from 50.degree. to 120.degree. C and stirring the system, the flow energy of the water and the energy of stirring being chosen so that the polymer particles just remain suspended.

Abstract: Tertiary amino acid and tertiary amino acid-nitrile compositions have been found to be effective as delayed action catalysts for polyurethane synthesis. They are particularly effective when used in combination with an organometallic such as an organo tin composition. These compositions generally comprise the reaction product of a primary or secondary amine, an aldehyde and disubstituted acid.

Abstract: This invention is directed to cement additives consisting essentially of (1) a styrene-butadiene interpolymer latex, (2) a nonionic surfactant, (3) a polyelectrolyte comprising the product obtained by copolymerizing methylmethacrylate and a sulfoester of .alpha.-methylene carboxylic acid or its salt, and (4) a polyorganosiloxane foam depressant, which additives provide portland cement compositions having excellent strength properties, workability and adhesion to cementitious substrates.