Abstract: Method of making aqueous dispersions of hydrophobic polymer particles loaded with at least one hydrophobic compound, comprising the consecutive steps of dissolving said at least one hydrophobic compound in a water-immiscible organic solvent medium, dispersing the solution obtained in water or in an aqueous medium to form a dispersed phase having an average droplet size lower than 5 .mu.m, mixing the resulting dispersion with a dispersion of hydrophobic polymer particles in water or in an aqueous medium, said hydrophobic polymer particles being swellable in said water-immiscible solvent medium and having an average particle diameter ranging from 0.02 to 5.0 .mu.m, stirring the mixture obtained to allow said hydrophobic compound to associate with said hydrophobic polymer particles, and removing said water-immiscible organic solvent medium by evaporation.

Abstract: A process for making filled molding powders by preparing a dilute solution of a polymer, making a slurry of a filler in the polymer solution, and then causing the polymer to come out of solution, e.g. by adding a nonsolvent or by solvent evaporation, so that the polymer coats the filler particles.

Abstract: Incorporation of fibrous filler into a styrene-butadiene rubber (SBR) by mixing a fibrous filler, SBR latex and a coagulant, feeding the resulting coagulated fiber-filled SBR latex to a dewatering extruder and through a flow restriction that applies back pressure sufficient that water present in the SBR is forced out of a vent upstream from the flow restriction and discharging the fiber-filled SBR from the extruder.

Abstract: Incorporating fibrous filler into an elastomer by adding to a screw extruder an aqueous slurry of an organic fibrous filler having a length less than about 25 mm and an elastomer latex, e.g., polychloroprene latex. The latex and slurry are fed to the extruder and the latex is coagulated in the extruder. The coagulated latex containing fibrous filler is fed to a dewatering zone. The flow of coagulated elastomer is restricted so that water present in the coagulated elastomer is separated by means of a vent in the extruder upstream from the restriction and discharging and recovering the fiber-filled elastomer. The compound can be used for the manufacture of power transmission belts.

Abstract: A reinforcing agent for vulcanizable rubber compounds comprises an anhydrous metal salt of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid having a crystalline structure consisting essentially of plates and fibers. Vulcanizable rubber compounds containing such reinforcing agents have improved physical properties over rubber compounds containing conventional metal carboxylic acid salts. Methods for the preparation of such anhydrous metal salts and methods for the reinforcement of vulcanizable rubber compounds therewith are also provided.

Abstract: A reinforcing agent for vulcanizable rubber compounds comprises an anhydrous metal salt of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid having a crystalline structure consisting essentially of plates and fibers. Vulcanizable rubber compounds containing such reinforcing agents have improved physical properties over rubber compounds containing conventional metal carboxylic acid salts. Methods for the preparation of such anhydrous metal salts and methods for the reinforcement of vulcanizable rubber compounds therewith are also provided.

Abstract: Copolymers having the general formula: ##STR1## are useful as compatibility, dispersion and grinding agents for aqueous pigmentary suspensions formulated from a mixture of mineral pigments, at least one of which is hydrated calcium sulfate. These suspensions are useful in papermaking.

Abstract: A dispersion and a method therefor wherein the dispersion has composition A or B, whereinA is a nonaqueous dispersion comprising pigment particles having an average size of less than 0.1 micrometer dispersed in an organic medium, andB is an aqueous dispersion comprising certain classes of inorganic pigment particles having an average size of less than 0.1 micrometer dispersed in an aqueous medium, wherein said classes of inorganic pigment particles are selected from the group consisting of metal oxides and metal salts.

Abstract: An ion-conductive polymer electrolyte comprises an organic polymer and a soluble electrolyte salt. The organic polymer is obtained by crosslinking an organic compound having an average molecular weight of 1,000 to 20,000 and having a structure of the following formula 1;Z--(R.sup.1).sub.l --(R.sup.2 O).sub.m --Y].sub.k 1in whichZ is a residue of a compound having at least one active hydrogen,R.sup.1 is represented by the following formula 2; ##STR1## wherein n is 0 or an integer of 1 to 25, R is an alkyl, alkenyl, aryl or alkylaryl group having 1 to 20 carbon atoms;R.sup.2 is an alkylene having not less than 2 carbon atoms,Y is a hydrogen atom or a polymerizable functional group,k is an integer of 1 to 12,l is an integer of 1 to 230,m is an integer of 1 to 300, andl/(l+m).gtoreq.0.1.

Abstract: A method for incorporating metal salts of .alpha.,.beta.-ethylenically unsaturated carboxylic acids into polymers and improving the cured physical properties of vulcanizable rubber compositions based on such polymers. The method includes the steps of preparing a polymer cement in a suitable organic solvent, forming a suspension of the metal salt of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid in a suitable aliphatic hydrocarbon solvent miscible with the organic solvent, mixing the polymer cement and the suspension together and thereafter removing the solvents to provide the metal salt uniformly dispersed within the polymer.

Abstract: The present invention includes:(i) a method for making a coated particulate comprising the steps offorming a polyolefin emulsion or dispersion;fluidizing additive particles;spraying the emulsion or dispersion on the fluidized additive particles; andforming discrete substantially coated additive particles;(ii) a coated particulate made by the above process; and(iii) a process for providing in-reactor stabilization of a polyolefin during a polymerization reaction using the coated additives prepared by the above described method.

Abstract: A dispersion and a method therefor wherein the dispersion has composition A or B, whereinA is a nonaqueous dispersion comprising pigment particles having an average size of less than 0.1 micrometer dispersed in an organic medium, andB is an aqueous dispersion comprising certain classes of inorganic pigment particles having an average size of less than 0.1 micrometer dispersed in an aqueous medium, wherein said classes of inorganic pigment particles are selected from the group consisting of metal oxides and metal salts.

Abstract: Fiber reinforced thermoplastics sheet is produced by a wet method from (a) an aqueous dispersion of reinforcing fibers an dispersing agent; and (b) an aqueous dispersion of thermoplastics polymer powder and an ionic polymer additive of opposite charge to the fiber dispersion. The dispersions are mixed, a high molecular weight ionic polymer flocculating agent is added, of charge opposite to that of the mixture, and the resulting suspension is drained and dried to form the sheet.

Abstract: A process for the preparation of composite particle dispersons is disclosed. The composite particles have a core particle 1 surrounded by a second material 2. Normally a core shell particle will be formed and the second material which forms the shell will be a polymer material.The composite particles are formed by mixing a dispersion of polymer particles with pre-formed core material particles. The polymer particles are stabilized relative to one another, and the core material particles are destabilized in the dispersion so that they are able to make contact with the surfaces of the polymer particles. The process takes place at a temperature above the operative glass transition temperature of the polymer, and in the process the polymer spreads over the surface of the core particle so that the core particle is encapsulated.

Abstract: An anionic emulsifier obtained from the reaction products of an alkyl phenol, polyamine, and formaldehyde or of an alkyl phenol, fatty acid/polyamine condensate, and formaldehyde followed by the reaction of such products with acrylic acid, and the uses of the emulsifier in anionic bituminous emulsions and paving slurry seal mixtures are disclosed.

Abstract: An anionic emulsifier obtained from the reaction products of an alkyl phenol, polyamine, and formaldehyde or of an alkyl phenol, fatty acid/polyamine condensate, and formaldehyde followed by the reaction of such products with acrylic acid, and the uses of the emulsifier in anionic bituminous emulsions and paving slurry seal mixtures are disclosed.

Abstract: An anionic emulsifier obtained from the reaction products of an alkyl phenol, polyamine, and formaldehyde or of an alkyl phenol, fatty acid/polyamine condensate, and formaldehyde followed by the reaction of such products with acrylic acid, and the uses of the emulsifier in anionic bituminous emulsions and paving slurry seal mixtures are disclosed.

Abstract: A method for minimizing the inherent yellowness of any kind of clear coating is disclosed. This method involves the addition of very small amounts of blue pigments or dyes to the clear coating so that chroma neutralization occurs. The chroma neutralization results in a clear coat which is crystal clear in appearance.

Abstract: A method wherein polymer stabilizers are suspended in a liquid carrier through the use of rheology agents so that a slurry is formed. The slurry can be stored with little or no setting of the stabilizers until needed and then transferred and applied to a polymer such as a thermoplastic polymer. Inasmuch as the slurry is often thixotropic, it can be readily transferred as upon the application of a pumping force thereto. Typically, the polymer can be treated upon the manufacture thereof or immediately thereafter. Polymers so treated have improved storage and processing stablity. Moreover, the stability of the final product is improved.

Abstract: A method for manufacturing pourable pulverulent rubber-filler mixtures starting from rubber solutions is disclosed. In this method, the filler is dispersed in an organic solvent and then mixed with a rubber solution to obtain a stable rubber-containing filler dispersion. The dispersion is then introduced into hot water containing a dispersed filler and subjected to high shear forces, causing the organic solvent to simultaneously be largely distilled off. After the rubber-containing filler dispersion has been completely added, an aqueous filler dispersion is added, water is removed from the precipitated rubber-filler mixture, and the product mixture is dried under constant agitation.

Abstract: An ink is produced without flushing by forming both an emulsion of a selected organic liquid and water and an aqueous suspension of a pigment. The emulsion and the pigment are then mixed together, whereby the pigment is phase-transferred from the aqueous phase to the non-aqueous phase, and whereby a mixture is formed. The mixture is concentrated (e.g. via filtration) and added to an ink mixing tank where the remaining water is removed by evaporation and wherein the remaining ingredients are added so that the ink is produced.

Abstract: A polymeric composition of matter comprises a polymer having dispersed therein at least one of colloidal metal and metal oxide particles in the submicrometer size range, said composition being aqueous-free and free of aliphatic hydrocarbon polymers and their halogenated derivatives. Methods for preparing the dispersions of the invention are also disclosed.

Abstract: Grinding agent based upon neutralized polymers and/or copolymers for an aqueous suspension of coarse mineral materials for applications in pigments consisting of acid acrylic polymers and/or copolymers which are entirely neutralized by at least one neutralizing agent having a monovalent function and at least one neutralizing agent having a polyvalent function.

Abstract: Toner and/or carrier particles are prepared by dissolving a polymer in a solvent which is immiscible with water forming a suspension of small droplets of the polymer and solvent in water containing a promoter and silica particles, removing the solvent from the droplets and separating the solidified particles from the water.

Abstract: Resinous pigment concentrates comprising at least one pigment and a dispersing additive of a naphthenic extender oil and/or a phosphate ester blended with a major portion of a resinous polymer containing a significant proportion of at least one polymerized conjugated diene monomer, when used for coloring resinous polymers as described, are effective in reducing such defects in finished articles as gels and surface blemishes.

Abstract: A deep penetrating sealer composition which renders the treated surface resistant to water, metal ions and chloride ion penetration comprising a mixture of (1) an aromatic solvent, (2) a chlorinated solvent, (3) an aliphatic hydrocarbon solvent, and (3) a hydroxy-substituted polyorganosiloxane.

Abstract: Polymer systems can be rendered flame retardant by adding a source of halogen and particles of antimony pentoxide that have been dried from colloidal dispersions that have been treated with certain metal ions. The properties of the polymer are conserved when the colloidal dispersion is treated with ions of metals that have insoluble antimonates before drying to form a powder.

Abstract: Stabilized acetal polymer molding compositions are formed by first preparing an intimate dispersion of an amidine stabilizer in a carrier resin comprising an ionic polymer, i.e. an "ionomer", and compounding the dispersion with the acetal polymer. The resulting composition is found in many cases to have improved stability over compositions prepared by adding the amidine compound in an undispersed form.

Abstract: Stabilized acetal polymer molding compositions are formed by first preparing an intimate dispersion of cyanoguanidine or melamine in a carrier resin, e.g. a non-ionic carrier resin such as an ethylene/ethyl acrylate copolymer, and compounding the dispersion with the acetal polymer. The resulting composition is found in many cases to have improved thermal stability over compositions prepared by adding the cyanoguanidine or melamine as pure crystals.

Abstract: A water soluble ethylenic copolymer-based dispersant for water-based pigment compounds, comprising a liquid phase, a binder which is an emulsion polymer, especially without protective colloids and which contains a considerable density of anionic groups, of pigments wholly or partially reactive with regard to their medium by the creation of bonds between the particles of emulsion polymer and the metallic ion of the partially soluble reactive pigment, characterized by the fact that in order to confer on such water-based pigment compounds definable rheological characteristics, which can be adjusted in advance and remain stable over periods of time, the said water soluble dispersant is an acrylic, methacrylic and itaconic acid copolymer.

Abstract: A method of rapidly dissolving finely divided individual particles of water-soluble vinyl addition polymers which comprises adding to water which contains from 0.5 to 10% by weight of a water-soluble surfactant, dry particles of a vinyl addition polymer, which particles have been coated with an oil-soluble emulsifier to provide a discrete organic solvent-free coating about such individual particles, having an HLB value between 4 and 9.

Abstract: A light-weight high-strength plastic concrete is obtained by mixing a nonionic surface active agent having a hydrophilic-lipophilic balance of 3 to 6, a vinyl monomer, and a cement slurry with stirring to form a W/O type emulsion, thereafter polymerizing the vinyl monomer and hardening the cement in the W/O type emulsion simultaneously.The plastic concrete obtained by the aforesaid process has a smooth surface and the appearance thereof is almost same as that of an ordinary cement concrete. The plastic concrete is also excellent in workability such as cutting, scraping riveting, etc.

Abstract: A rubber composition containing carbon black as a reinforcing filler and a quaternary ammonium salt as a coupling agent and a method of making it are disclosed.

Abstract: Resinous pigment concentrates comprising at least one pigment and a dispersing additive of a naphthenic extender oil and/or a phosphate ester blended with a major portion of a resinous polymer containing a significant proportion of at least one polymerized conjugated diene monomer, when used for coloring resinous polymers as described, are effective in reducing such defects in finished articles as gels and surface blemishes.

Abstract: A powdered elastomeric composition is formed by combining a powder elastomer and a powdered predispersion of liquid or pasty components, such as process oil, lubricants and waxes, in a dry powder filler. The powdered predispersion is combined with the powder elastomer using a ribbon blender to form a consistent homogenous powder dry blend which can be directly injection molded without any additional mixing other than that occurring in the extruder portion of the injection molding apparatus.

Abstract: A rubber composition containing carbon black and a second particulate filler of kaolin, metakaolin, talc, pyrophyllite coal, coke, graphite or metal carbonate filler and a method of making it are disclosed.

Abstract: In a rubbery composition in which a silica containing material is utilized as a reinforcing agent, the hysteresis of the rubbery composition is improved by incorporating the silica containing material into the rubbery composition in the form of zinc modified silica. The zinc modified silica provides an improved reinforcing agent which improves the hysteresis of the rubbery composition when the rubbery composition containing the zinc modified silica is cured.

Abstract: Improved stable crosslinked dispersion which is further stabilized with butylated melamine formaldehyde resin. The dispersion to which the improvement of the invention applies is formed by addition polymerization of selected monomers in the presence of an organic liquid which is a solvent for the monomers, but a non-solvent for the polymer and a polymeric dispersion stabilizer having solvated and non-solvated segments.

Abstract: The invention provides a process for preparing an aqueous binder composition which comprises(a) dispersing pigment powder having a particle size less than 20 micrometers in a liquid, solvent-free epoxy resin,(b) dispersing the resultant paste in water,(c) reacting the resultant dispersion with a secondary amine, and optionally a primary amine, the amount of amine or amines being sufficient to provide at least one N--H function per epoxy group of the epoxy resin, at a temperature in the range 40.degree. C. to 100.degree. C., and(d) neutralizing the resulting suspension of epoxy-amine adduct coated particles, and(e) optionally adjusting the concentration of the resulting dispersion within the range 35 to 75% w solids by addition of water.Aqueous paint compositions are prepared from the binder compositions by(f) adding a crosslinking agent, and(g) adjusting, if necessary the concentration of the composition by addition of water to ensure a solids content in the range 10 to 65% w.

Abstract: A composition comprising 99.5 to 75% by weight of highly plasticized polyvinylchloride (PVC) which consists of 15 to 45% by weight of polyvinylchloride (as herein defined) and 55 to 85% by weight of a plasticizer, and from 0.5 to 25% by weight of carbon fibers.

Abstract: Sandwich-type capacitive electronic discs having thin conductive layers are prepared by adding a thermally processed conductive molding composition comprising a thermoplastic resin, conductive carbon black particles and suitable additives to a suitable solvent to form a dispersion of the conductive carbon black in a solution of the remaining ingredients. The dispersion is filtered to remove impurities larger than a predetermined particle size and coated onto a core disc. The coating is dried to form a conductive layer which is embossed with the desired information.

Abstract: A liquid composition comprising a dispersion of silica colloid in alcohol and a thermo-setting resin. The dry film of this composition is superior in chemical resistance, surface hardness, abrasion resistance, heat resistance and adhesiveness to a substrate.

Abstract: An improved sealing or adhesive composition comprising a stable slurry of solid meltable wax-like particles dispersed in a liquid adhesive or sealant composition, such as an anaerobic adhesive of sealant, which may be caused to cure at a time later than the time of application. The composition may be applied to threaded bolts or other articles by pumping the slurry through a heated applicator head to dispense homogeneous liquid on the article which hardens on cooling to a non-mobile setable coating.

Abstract: Asbestos-free fibre reinforced sheet material comprises from 10 to 35% by weight of a cured elastomeric binder and from 20 to 70% by weight of glass fibres (including ceramic fibres, or mineral fibres or mixtures of these) surface treated with a composition which is readily soluble in the solvent used in compounding the elastomeric binder.

Abstract: An aqueous emulsion of a solid, water insoluble or limited water soluble organic peroxide is provided that has improved stability, dilutability and safety but still having an average particle size of 1.5 microns or less and a good particle size distribution. The emulsion has from about 10 weight percent of the emulsion of a solid peroxide selected from the group of hydroperoxides .alpha., -oxy and .alpha.-peroxy hydroperoxides, dialkyl peroxides, aldehyde and ketone peroxides, diacyl peroxides, peroxyesters, peroxy acids, peroxydicarbonates, monoperoxycarbonates and perketals.The emulsion also has a hydrocarbon solvent having a high kauri-butanol number if the organic peroxide has a substantial amount of aromaticity and a low kauri-butanol number if the organic peroxide has little or no aromaticity and one or more nonioic emulsifiers and at least about 20 weight percent of water.

Abstract: Aqueous varnishes containing mineral fillers and/or pigments are prepared by allowing a hot wax emulsion in water at between 80.degree. C. and 100.degree. C. to flow with vigorous stirring into the aqueous varnish containing mineral fillers and/or pigments and to cover at least some of the filler and/or pigment particles with a wax coating. These varnishes show virtually no sedimentation of the solid constituents.

Abstract: The subject invention relates to storage stable dispersions comprising certain aromatic polyesters dispersed in certain polyhydroxyl compounds and their process of preparation. The dispersions are useful for the preparation of polymers containing urethane and/or isocyanurate linkages.

Abstract: A rubber composition containing a phyllosilicate mineral filler is disclosed.

Abstract: Coating compositions comprising hydroxy functional film formers, crosslinking agent therefor and a novel flow control additive. Flow control additive comprises stable crosslinked dispersion formed by addition polymerization of selected monomers in the presence of (i) organic liquid which is a solvent for the monomers, but a non-solvent for the polymer and (ii) polymeric dispersion stabilizer having solvated and non-solvated segments, wherein the dispersion is stabilized further by inclusion therein of a butylated melamine formaldehyde resin.

Abstract: A method of treating salt water-in-oil dispersions comprises mixing with the dispersion a latex of a rubber having a high wet gel strength. The incorporation of the latex into the dispersion causes exudation of water from the dispersion with resulting thickening. If sufficient latex is used the dispersion may be transformed into a solid. Suitable rubbers include natural rubber, polychloroprene rubber, butadiene acrylonitrile rubber, styrene butadiene rubber and poly (methyl methacrylate) graft natural rubber.The tackiness of solids formed using for example a natural rubber latex can be reduced by using in addition to the natural rubber latex, a latex of a low or zero wet gel strength polymer e.g. PVC, poly (vinyl acetate) or polystyrene. The effectiveness of the method of treatment may be improved by the use of a suitable compatible solvent e.g. toluene or a filler such as a clay filler.