Abstract: A solid fixing resin composition, which has excellent filling properties, and a rotor using the same are provided. The fixing resin composition is used to form a fixing member constituting a rotor which includes a rotor core (110) which has a laminate formed by lamination of a plurality of plate members, is fixed and installed on a rotating shaft, and has a plurality of hole portions (150) arranged along the peripheral portion of the rotating shaft, provided in the laminate; a magnet (120) inserted in the hole portion (150); and a fixing member (130) formed by curing a fixing resin composition, filled in the separation portion between the hole portion (150) and the magnet (120), the resin composition including a thermosetting resin (A) containing an epoxy resin; a curing agent (B); and an inorganic filler (C), in which the ICI viscosity at 150° C. of the epoxy resin is equal to or less than 3 poises.

Abstract: Provided are a toughness modifier for a curable resin which has good dispersibility in a curable resin containing a thermoplastic resin as well as in a cured product formed from a curable resin composition, and also has an excellent toughness-improving effect; and a curable resin composition containing the toughness modifier. The toughness modifier for a curable resin (D) is obtained by emulsion-polymerizing 5 to 50% by mass of a vinyl monomer (B) in the presence of 50 to 95% by mass of a rubber polymer (A) latex (calculated as the rubber polymer component) using 0.5 to 15 parts by mass of a nonionic reactive surfactant (C) (relative to 100 parts by mass of a total of (A) and (B)).

Abstract: A thermosetting resin composition having rubbery polymer particles dispersed therein of the present invention, that does not precipitate the thermosetting resin rubbery polymer particles over a long period of time, has excellent fluidity, is easily cured and molded, and sufficiently exhibits original properties of the thermosetting resin, comprises 100 parts by weight of a thermosetting resin, and 1 to 80 parts by weight of rubbery polymer particles, the rubbery polymer particles being dispersed in the form of a primary particle, wherein the solid content concentration is 60% to 90% by weight, and the water concentration is 3% by weight or less, and can efficiently be produced industrially in the state that the rubbery polymer particles are maintained in a stable state.

Abstract: A process to manufacture a reinforcing element provided with a cured adhesive composition, a reinforcing element provided with a cured adhesive composition, and a rubber article including the reinforcing element. The manufacturing process includes the steps of providing a reinforcing element, treating the reinforcing element with a composition that includes an aqueous dispersion of components, optionally drying the treated reinforcing element, and curing at least two of the components.

Abstract: The present invention provides a coating composition for cans comprising 100 parts by mass of a neutralized acrylic resin-modified epoxy resin (A), and from 1 to 50 parts by mass of anionic polymer crosslinked fine particles (B), (A) and (B) being dispersed in an aqueous medium, wherein the anionic polymer fine particles (B) are polymer fine particles comprising a polymer having an acid value of from 10 to 120 mg KOH/g and being produced by polymerizing radically polymerizable unsaturated monomers comprising from 2 to 30% by mass of a carboxyl group-containing radically polymerizable unsaturated monomer (b1), from 2 to 30% by mass of a polyvinyl compound (b2) and from 40 to 96% by mass of other radically polymerizable unsaturated monomer (b3) in the presence of water.

Abstract: A thermosetting resin composition having rubbery polymer particles dispersed therein of the present invention, that does not precipitate the thermosetting resin rubbery polymer particles over a long period of time, has excellent fluidity, is easily cured and molded, and sufficiently exhibits original properties of the thermosetting resin, comprises 100 parts by weight of a thermosetting resin, and 1 to 80 parts by weight of rubbery polymer particles, the rubbery polymer particles being dispersed in the form of a primary particle, wherein the solid content concentration is 60% to 90% by weight, and the water concentration is 3% by weight or less, and can efficiently be produced industrially in the state that the rubbery polymer particles are maintained in a stable state.

Abstract: The present invention concerns a paint composition which comprises a binder, a coalescent agent and optionally admixtures and auxiliary agents known per se. The film forming agent comprises a glycidyl ether or glycidyl ester or a mixture thereof, the hydrocarbyl residue of the alcohol or carboxylic acid, respectively, of the ether or ester comprising a linear or branched, saturated or unsaturated hydrocarbon having 3 to 20 carbon atoms. The invention further concerns a method of accelerating the hardening of paint compositions and a novel method of preparing glycidyl esters. The film forming agents used in the invention lower the film forming temperature better than conventional reactive film forming agents. Due to low volatility the compounds are suitable for no-VOC applications.

Abstract: Motor vehicle tire (100) which has reduced rolling resistance (FIG. 1), the said tire comprising at least one carcass ply (101) whose opposite lateral edges are folded externally to form carcass folds (101a) around respective right and left bead wires (102), each bead wire being encased in a respective bead (103), each bead also comprising a respective bead filling (104) and antiabrasive band (105), in which the said antiabrasive band (105) consists of a vulcanized elastomeric compound comprising at least one natural or synthetic rubber and has a loss factor (tan &dgr;=E″/E′) at 70° C.≦0.130 and a storage modulus E′ at 70° C.≧6 MPa.

Abstract: Crosslinkable polymer compositions are provided which can be in the form of a polymer powder which is redispersible in water or as an aqueous dispersion. The polymer composition is composed of A) a copolymer of one or more comonomers of vinyl esters of straight-chain or branched alkanecarboxylic acids having 1 to 18 C atoms, acrylates or methacrylates of branched or straight-chain alcohols having 1 to 15 C atoms, dienes, olefins, vinylaromatics and vinyl halides, and of from 0.1 to 10% by weight, based on the total weight of the comonomers, of one or more ethylenically unsaturated comonomers containing epoxide groups, and B) one or more non-copolymerizable compounds having at least two epoxide groups. The invention furthermore relates to a process for the preparation of the crosslinkable polymer compositions and their use in chemical products for the construction industry.

Abstract: A single adhesive coating composition having about 2-12 wt. % epoxy and optionally 1-12 wt. % isocyanate with remainder being resorcinol formaldehyde latex, on a dry wt. basis. The coating is applied to polyester cords on a wet basis and then dried. The coated polyester cords are embedded in a rubber composite and the composite is cured. The coating adheres the polyester cords to the rubber to yield good peel strength results and good visual coverage ratings.

Abstract: A protective coating composition for coating interior surfaces of beer, beverage, and food containers, as well as interior and exterior surfaces of can ends, comprises a polymeric binder of emulsion copolymerized ethylenic monomers in the presence of an unsaturated polyester dispersed into water with an aqueous dispersed epoxy-acrylic graft copolymer dispersant. The preferred polymeric binder comprises by weight between 0.1% and 40% unsaturated polyester, between 20% and 80% emulsion copolymerized ethylenic unsaturated monomers, and at least 20% dispersant, where the emulsion copolymerized monomers crosslink with the water dispersed unsaturated polyester.

Abstract: An epoxy resin composition to seal semiconductors constructed of a semiconductor element, a base to support said semiconductor element, and an epoxy resin composition covering only one side opposite to the base, said epoxy resin composition comprising (A) epoxy resin, (B) hardener, and (C) inorganic filler, and giving a cured product which has (a) a flexural modulus of elasticity of 10 to 30 GPa at 23° C. and (b) a coefficient of linear expansion of 4×10−6/K to 10×10−6/K in the temperature range from 23° C. to the glass transition point, with the product of (a) and (b) being smaller than 2×10−4 GPa/K.

Abstract: A water-dispersible polymer and a coating composition containing the water-dispersible polymer are disclosed. The water-dispersible polymer is prepared from: (a) an epoxy compound having about two epoxy groups, such as an epoxy resin, (b) a linking compound having (i) conjugated carbon-carbon double bonds or a carbon-carbon triple bond and (ii) a moiety capable of reacting with an epoxy group, such as sorbic acid, and (c) acrylic monomers, at least a portion of which are capable of rendering the polymer water dispersible, such as acrylic acid, wherein the epoxy portion (a) of the polymer is covalently linked to the polymerized acrylic portion (c) by linking compound (b). The coating composition contains the water-dispersible polymer, a fugitive base to solubilize the polymer, a curing agent, and a carrier containing water.

Abstract: A powder coating composition is disclosed which includes (a) 100 parts by weight of a mixed epoxy resin having an epoxy equivalent of 800-2000 and containing (a-1) a diglycidyl ether of bisphenol A having an epoxy equivalent of 180-2500 and (a-2) a rubber-modified epoxy resin having an epoxy equivalent of 180-2500 and obtained by reaction of a diglycidyl ether of bisphenol A with a carboxyl terminated acrylonitrile-butadiene copolymer; (b) a mixed curing agent consisting of (b-1) 0.05-5 parts by weight of an imidazole compound, (b-2) 0.5-10 parts by weight of dicyanodiamide and (b-3) 1-10 parts by weight of a dihydrazide of a dibasic carboxylic acid; and (c) 50-100 parts by weight of silica.

Abstract: A water-based coating composition which cures through a Michael reaction at room temperature is provided. The composition comprises (a) an aqueous emulsion of an acrylic copolymer having a plurality of activated methylene groups in the molecule, (b) an aqueous dispersion or solution of a compound having a plurality of ethylenic unsaturations in the molecule, and (c) a compound capable of catalyzing the Michael reaction.

Abstract: An aqueous adhesive composition for bonding reinforcing textiles to rubber products is provided, having an epoxy resin with a functionality of three or greater and a rubber latex functionalized with pendent groups selected from carboxyl, amide and pyridyl groups.

Abstract: An adhesive composition includes from about 30 weight percent to about 70 weight percent solids dispersed in an aqueous medium. The solids include from about 60 weight percent to about 97.9 weight percent of a polymer having a glass transition temperature of about -40.degree. C. to about 10.degree. C. and including first repeating units derived from an alkyl (meth)acrylate monomer, a vinyl ester monomer, a styrenic monomer or a mixture thereof and second repeating units derived from a hydroxyalkyl (meth)acrylate monomer, a monoethylenically unsaturated nitrogenous monomer or a mixture thereof; from about 2 weight percent to about 30 weight percent of a polyfunctional epoxy resin including two or more epoxide groups per molecule; from about 0.1 weight percent to about 10 weight percent of a polyfunctional curing agent including two or more amino groups or amido groups per molecule; and from about 0.01 weight percent to about 30 weight percent of a metal salt.

Abstract: Vehicles for one-component aqueous emulsion/dispersion acrylic paints having improved washability and wash-fastness include (a) from 96% to 99.9% by weight, relative to the solids content thereof, of an aqueous dispersion of acrylic latex, and (b) from 0.1% to 4% by weight, also relative to the solids content thereof, of an aqueous emulsion of an aromatic epoxy resin which comprises a nonionic surface-active agent.

Abstract: A process of making a solvent-free water-based emulsion of an anionically polymerized polymer which comprises: heating the polymer until its viscosity is no more than 3,000 centipoise, (b) mixing water with a surfactant, (c) adding the mixture of (b) to the polymer of (a) while agitating the polymer at high speed, thereby forming an emulsion, (d) cooling the emulsion to below 100.degree. C., and (e) optionally subjecting the emulsion to turbulent flow and/or cavitation. Also included are emulsions of such polymers.

Abstract: A thermosetting coating composition containingA) one or more binders convertible into liquid or dissolved form at least at the curing temperature and containing acidic groups, basic groups or ionic groups of similar charge,B) one or more binders convertible into liquid or dissolved form at least at the curing temperature and containing basic groups where (A) contains acidic groups, acidic groups where (A) contains basic groups or ionic groups of like charge opposite to the charge of the ionic groups of (A), binder (B) being noninterdiffusible under storage and application conditions, but interdiffusible with binder (A) under hardening conditions, andC) optionally standard solvents, pigments and/or typical paint auxiliaries and/or additives which do not lead to any interdiffusion of the binders A) and B) under storage and application conditions,and a process for the production of coatings by application of the coating composition and subsequent thermal curing.

Abstract: An additive for cationic electrodepositable coating compositions is disclosed which improves hiding ability, stability, rheology and oil spot resistance. The additive is present in amounts of between 0.5 to 40 weight percent and is prepared by polymerizing in aqueous medium, under free radically initiated conditions, an aqueous dispersion of a polymerizable, ethylenically unsaturated monomer composition in the presence of a cationic polymeric surface active substance. The coating composition additionally has between 60 to 99.5 weight percent of a cationic salt group containing film forming polymer. Also disclosed is a method for coating which includes electrodepositing the above composition on an electrically conductive cathode.

Abstract: A method and composition for providing a polymeric membrane in situ for isolating vessels which hold hazardous liquid materials. A liquid polymer composition is applied to at least one of the surfaces defining the area which is to hold the liquid hazardous material. Upon cure, a seamless bladder-like membrane is formed which adheres to the surface, and which can be removed by physically peeling from the surface to which it has been applied. The membrane possesses a unique combination of properties which are substantially maintained while in contact with the hazardous material. The polymeric membrane provides, for an extended period of time, an impermeable barrier which acts as a secondary sealant and prevents the spread, deposition, or migration of contaminants.

Abstract: An O/W water paint having excellent dispersibility and stability is prepared according to a phase conversion process comprising adding ammonia or an amine and water to a solution of an epoxy resin, a hardener resin, and an acrylic resin in an organic solvent or to a molten mixture of these resins to neutralize the acrylic resin. In view of adhesion of a coat to metal and workability, branched alkylamines or heterocyclic amines are suitable as the neutralizing amine. In applying this paint, steam optionally containing fine water droplets is preferably applied to a wet coat prior to drying.

Abstract: Polymeric reaction products which become water-thinnable on protonation with an acid and are suitable for use in the form of aqueous dispersions as additives in electrocoating baths are formed fromA. a butadiene/acrylonitrile copolymer which contains primary and/or secondary amino groups andB. an epoxy compound having an average molecular weight of from 140 to 10,000 and containing on average from 1.5 to 3 epoxy groups per molecule,the amount of (A) being such that 1.05 moles or more of primary and/or secondary amino groups of component (A) are present per mole of epoxy groups of component (B).

Abstract: A coating composition is used for coating or overlaying Portland cement concrete or metal. The composition includes a synthetic polymer latex, an amine-functional epoxy curing agent, an epoxy-functional or amine-functional silane, a liquid epoxy resin, and a filler having a fine particle size. The coating composition has superior crack resistance and low cost in comparison with epoxy/amine-type polymer concrete, and excellent strength development, chemical resistance, and rapid cure in thick films in comparison with latex-based cementitious compositions. The coating composition can be mixed from a pair of storage-stable components; a dry mix including the fine particle size filler and the epoxy resin, and optionally larger size aggregate, and a wet mix including the polymer latex, the silane, and the amine curing agent.

Abstract: This invention relates to an electrodeposition process which comprises electrodepositing onto a conducting substrate a coating composition comprising a self-crosslinking polymeric resin which has an average of at least two pendent hydroxy functional groups and an average of at least two pendent ester groups of the general formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen, alkyl, substituted alkyl or aryl groups; n is from about 1 to about 5; X is nitrogen, sulfur or phosphorus; and when X is nitrogen or phosphorus, R.sup.3 is hydrogen, lower alkyl, or an aryl group; R.sup.4 is lower alkyl or an aryl group; and when X is sulfur, R.sup.4 is nothing and R.sup.3 is either hydrogen, lower alkyl or aryl.

Abstract: Cathodic electrocoating compositions and processes are improved by the addition of at least 0.10% hydrogen peroxide by weight based on polymer to electrocoating composition.

Abstract: This invention relates to coating compositions which comprise a polymer having at least two hydroxy functional groups and a crosslinking agent having an average of at least two pendent ester groups of the general formula: ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen, alkyl, substituted alkyl or aryl groups; n is from about 1 to about 5; X is nitrogen, sulfur or phosphorus; and when X is either nitrogen or phosphorus, R.sup.3 is hydrogen, lower alkyl, or an aryl group; R.sup.4 is lower alkyl or an aryl group; and when X is sulfur, R.sup.4 is nothing and R.sup.3 is either hydrogen, lower alkyl or aryl.

Abstract: A paint composition for cation electrodeposition painting, used for painting automotive vehicle body etc. The paint composition comprises basic unsaturated modified epoxy ester expressed by the general formula: ##STR1## where R.sub.1 and R.sub.2 are functional groups at least one of which is .alpha., .beta.-ethylenic double bond containing groups and the remainder is an unsaturated fatty acid chain; R.sub.3 is a group expressed by the formula: ##STR2## and X and Y are functional groups whose total number is n+1 in which not less than one functional group is a group containing both a tertiary amine function and a urethane function, and the remainder are hydroxyl groups (--OH), n being an integer ranging from 1 to 20.

Abstract: An electrodeposition coating composition comprising (a) a water-dispersible, electrically depositable binder resin and (b) water-insoluble, internally crosslinked polymer microparticles having a particle size from 0.01 to 2 microns, said polymer microparticles bearing on their surfaces physically adhered or covalently bound thereto an amphoionic group of the formula: ##STR1## wherein R represents an unsubstituted or substituted C.sub.1 -C.sub.6 alkylene or phenylene, A is --COOH or --SO.sub.3 H.

Abstract: A non-autocrosslinking binder composition for water-dilutable lacquers containing 1 to 99% by weight of a hydroxyl group-containing and amino group-containing epoxide resin and 99 to 1% by weight of an amino groupcontaining synthetic resin binder prepared from free radically polymerizable monomers is described. Aqueous electrodip lacquer coatings containing this binder composition and capable of being deposited at the cathode and their use for coating articles having an electrically conductive surface at the cathode are also described.

Abstract: The invention relates to a process for coating an electrically conductive substrate, the said substrate being immersed in an aqueous bath based on a cationic synthetic resin binder which is at least in part neutralized with acids and contains amino and/or hydroxyl groups. The said bath contains a mixture of crosslinking agents as well as pigments, fillers, corrosion inhibitors, paint auxiliary substances, and, if appropriate, catalysts, as well as organic solvents in an amount of up to 15% by weight based on the total weight of the coating, the said substrate being cathodically connected. By the action of direct current, a film is deposited on the substrate, after which the said substrate is removed from the bath and the film is cured by stoving, the mixture of crosslinking agents comprising at least two crosslinking agents of different reactivities based on activated esters and/or polyisocyanates blocked by different blocking agents.

Abstract: A two component water-based composition which cures in two stages, an initial rapid curing stage and a slower curing stage, comprising as the first component, a mixture of a polyaldehyde chosen from the group consisting of glyoxal glutaraldehyde and derivatives of glyoxal and gluteraldehyde, and a water dispersible component chosen from the group consisting of poxy resin emulsions which can be emulsified in water, synthetic latexes stable at about pH 7 or less, low molecular weight resin emulsions, epoxy ester emulsions, water emulsified alkyds, and cationic, anionic and non-ionic asphalt emulsions and, as the second component, the non-gel reaction product of N,N'-bis(methoxymethyl) uron and a polyamine chosen from a group consisting of primary and secondary amines and/or a monoamine.

Abstract: A cathodic electrodeposition coating composition which comprises:(A) 100 parts by weight of an amine-unsaturated carboxylic acid adduct of epoxidized polybutadiene having a number average molecular weight of from 500 to 10,000 and containing from 70 to 200 mmol of a tertiary amino group, from 20 to 200 mmol of an .alpha.,.beta.-unsaturated monocarboxylate group and from 200 to 2,000 mmol of a carbon-carbon double bond, per 100 g of the resin;(B) from 20 to 200 parts by weight of an addition reaction product of (a) 1 mol of an epoxy resin containing at least two epoxy groups per molecule, and (b) from 1.5 to 2.0 mol of an .alpha.,.beta.-unsaturated monocarboxylic acid;(C) from 5 to 50 parts by weight of an addition reaction product of (a) 1 mol of an epoxy resin containing at least two epoxy groups per molecule, and (b) a mixture of from 0.5 to 1.5 mol of an .alpha., .beta.-unsaturated monocarboxylic acid and from 0.5 to 1.

Abstract: Coating compositions are disclosed which are effectively applicable to the plating of insulating bases for use in manufacturing printed circuit boards by the additive process. Selected composite rubber materials are combined with specified amounts of a selected type of calcium sulfate, whereby blister resistance by plating, heat resistance at soldering and peel strength are greatly improved.

Abstract: Disclosed herein are aqueous compositions comprising a base-neutralized blend of non-gelled phosphated epoxy and a resin which is non-self dispersible with a base, in water. Coating compositions of these blends are stable and form hydrophobic films of enhanced film properties, particularly in the area of can coatings.

Abstract: Aqueous coating composition comprising water insoluble resinous powder, aqueous resin, pigment and other optional additives including hardener, characterized by the fact that said water insoluble resinous powder is composed of a polymer obtained by reacting a mixture of epoxy resin and a resin having epoxy reactive functional groups, or a resin having both epoxy groups and epoxy reactive functional groups, with an amine in an amount sufficient to cause ring-opening of 10 to 50% of the total epoxy groups, or composed of carboxyl bearing resin admixed and reacted with high boiling basic compound. These compositions are excellent in storage stability, application characteristics and film performance.

Abstract: A cathode-depositing electrodeposition coating composition comprising an aqueous solution or dispersion containing(A) a reaction product of (1) epoxidized diene polymer, (2) an amine and optionally, (3) polymerizable unsaturated aliphatic acid;(B) a reaction product of bisphenol epoxy resin and a polymerizable aliphatic acid;(C) a blocked polyisocyanate compound; and(D) manganese dioxide or an organic salt of manganese, cobalt or copper.The composition gives a coating film having excellent properties when electrodepositing and baking at a relatively low baking temperature.

Abstract: A cathode-precipitating electrodeposition coating composition consisting essentially of (A) 100 parts of a high-molecular-weight compound having a molecular weight of 500 to 10,000 and containing an amino group and a carbon-carbon double bond, (B) 3 to 200 parts by weight of a reaction product obtained by reacting an unsaturated carboxylic acid having 3 or 4 carbon atoms with the terminal glycidyl group of a glycidyl compound obtained by reacting a bisphenol with epichlorohydrin, and (C) 0.2 to 20 parts by weight of an oil-soluble manganese salt of a monoester of a 1,2-dicarboxylic acid or a manganese salt of sulfonated or maleinized polybutadiene having a molecular weight of 300 to 3,000.

Abstract: Heat-curable surface-coating agents useful in organically dissolved baking finishes, for powder coating and for cathodic electrocoating contain, as a binder, a mixture of a polyadduct, polycondensate or other polymer which has an average molecular weight M.sub.n of from 500 to 10,000 and, per molecule, on average two or more OH and/or NH groups, and a reaction product of a polyamine which contains on average two or more primary amino groups per molecule and a cyclic carbonic acid ester of the formula (I) ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 each are hydrogen, methyl or ethyl.

Abstract: Conventional carboxylated neoprene latex adhesives are improved with respect to their metal adhesion, heat and water resistance and bonding range by the addition thereto of an epoxy resin, preferably an epoxy resin prepared by the reaction of para-aminophenol with epichlorohydrin.

Abstract: A cathode-depositing electrocoating composition which comprises as a film-forming component a carbon-to-carbon double bond containing resin having a principal chain of acetylene-conjugated diene random copolymer and a basic group, combined to the principal chain in a ratio of from 0.02 to 0.8 mol per 100 g of said resin and capable of forming in an aqueous medium a group of the formula: ##STR1## wherein R.sub.1 and R.sub.2, which are the same or different, are each a hydrogen atom, a halogen atom or a hydrocarbon residue having 1 to 6 carbon atoms, R.sub.3 and R.sub.4 which are the same or different, are each a hydrogen atom or an organic residue having 1 to 10 carbon atoms or are combined to form together with the intermediary nitrogen atom a cyclic group having 1 to 7 carbon atoms, and X is a hydrogen atom or a bond, and when X is a bond, both the carbon atoms carrying R.sub.1 and R.sub.

Abstract: Paint coating material capable of cathodic deposition based on a vehicle mixture that has been made water-thinnable with acid and optionally customary additives, wherein said vehicle contains in combination(A) from 50 to 90% by weight of a polymer and/or polycondensate containing tertiary amino-groups and OH groups and having amine and hydroxy numbers of from 30 to 170 and 30 to 300 respectively;(B) from 5 to 40% by weight of a fully blocked polyisocyanate which is stable in the aqueous phase and becomes reactive again under the influence of heat, after dissociation of the blocking group; and(C) from 0 to 30% by weight of polymer and/or polycondensate containing primary and/or secondary OH- and/or amino-groups.

Abstract: An aqueous coating composition comprising from 45 to 98 parts by weight (solids) of aqueous resin(s) and from 2 to 55 parts by weight (solids) of finely divided water-insoluble resin(s), in which at least a part of said aqueous resin is selected from special type of cationic resins. The resins may have mutually reactive functional groups.

Abstract: The invention relates to a process for preparing compositions for coating metal substrates or work pieces in an aqueous bath, in which the substrate forms the cathode.In this process 5-35% by weight of at least one epoxy resin, 2-20% by weight of at least one ketone and/or hydrocarbon resin, 15-60% by weight of at least one cationic synthetic resin having functional groups--this compound is a 10-50% by weight dispersion or solution--, 5-30% by weight of at least one organic cross-linking agent, which is solid at ambient temperature and 0-73% by weight of pigments and/or conventional adjuvants are processed together in one or more stages in a grinding apparatus to form a homogeneous coating composition. At least one stage being a wet operation. The composition has a particle size of less than 100 .mu.m, preferably less than 15 .mu.m. The grinding bath is adjusted with water to the solids content required for application.

Abstract: An aqueous coating composition comprising from 45 to 98 parts by weight (solids) of aqueous resin(s) and from 2 to 55 parts by weight (solids) of finely divided water-insoluble resin(s), in which at least a part of said aqueous resin is selected from amphoteric resins having both carboxyl and amino groups. The resins may have mutually reactive functional groups.

Abstract: Amphoteric amino sulfonate derivatives of epoxy resins having at least one terminal group of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are hydrogen or methyl, R.sub.3 is hydrogen or C.sub.1 -C.sub.20 alkyl or substituted alkyl, and R.sub.4 is C.sub.1 -C.sub.6 alkylene or substituted alkylene, which are reaction products of an epoxy resin having a plurality of terminal groups of the formula: ##STR2## wherein R.sub.1 and R.sub.2 are as defined, with an amino sulfonate of the formula:R.sub.3 --NH--R.sub.4 --SO.sub.3 Mwherein R.sub.3 and R.sub.4 are as defined, and M is a cation.