Abstract: Composite basic resin particles each of which comprises a granular body portion of crosslinked polymer having a mean diameter of 0.01 to 10.mu. and a number of linear polymer chains, a part of the respective linear polymer chain penetrating into the inside of the granular body portion and the remaining part extending outwardly therefrom, and at least part of said linear polymer chains bearing basic functional groups selected from amino groups and ammonium group. A dispersion of said composite basic resin particles in an organic solvent is useful as a resinous vehicle for coating compositions.

Abstract: Composite resin particles each comprising a particulate crosslinked polymer to which a number of substantially linear, metal-containing polymer chains are chemically bonded. The invention also provide methods for the preparation of said composite resin particles. The present composite resin particles have self-film forming properties, can give a stable dispersion in an organic solvent or a resinous varnish and are specifically useful in paint industries. The particles are further characterized by having the desired properties of the metal element contained therein, as, for example, self-catalytic function in crosslinking, excellent biological activities and the like.

Abstract: Composite acrylic resin particles prepared by effecting an emulsion polymerization of a monomer mixture of(A) at least one crosslinking monomer having in its molecule two or more radically polymerizable mono- or 1,1-di-substituted ethylenic unsaturation bonds, or a combination of at least two monomers each having a mutually reactive functional group and one or more radically polymerizable mono- or 1,1-di-substituted ethylenic unsaturation bonds,(B) at least one mono-functional polymerizable monomer other than an aromatic compound, and(C) at least one monomer having in its molecule one or more radically polymerizable mono- or 1,1-di-substituted ethylenic unsaturation bonds and one or more radically polymerizable 1,2-di-, 1,1,2-tri- or 1,1,2,2-tetra-substituted ethylenic unsaturation bonds, and graft-polymerizing thus obtained particles with a polymerizable aromatic compound and other optional mono-functional monomers.

Abstract: Composite resin particles each of which comprises a granular body portion of crosslinked polymer having a mean diameter of 0.01 to 10.mu. and a number of linear polymer chains, a part of the respective chain penetrating into the inside of the granular body portion and the remaining part extending outwardly therefrom. A dispersion of said composite resin particles in an organic solvent is useful as a resinous vehicle for coating compositions.

Abstract: A novel aqueous dispersion type resin composition obtained by the method comprising polymerizing at least one .alpha.,.beta.-ethylenically unsaturated monomer in an aqueous medium containing a water soluble resin with an amphoionic group of the formula ##STR1## (in which R and Y are defined in the specification) and in the presence of an organic initiator, the solid weight ratio of said water soluble resin to said monomer being, 10:90 to 90:10. The aqueous coating composition based on said resin composition is excellent in storage stability, application characteristics and capable of resulting a coating with excellent film properties.

Abstract: Promoters for a crosslinking reaction involved in the curing of a system comprising crosslinkable polymers are bound to polymeric microparticles having a diameter of about 0.01 to 6 microns prepared by polymerizing a mixture of ethylenically unsaturated monomers. The microparticles carrying the crosslinking reaction promoter may be incorporated to coating compositions, printing inks, sealants, adhesives and other polymeric products in place of conventional crosslinking reaction promoters.

Abstract: An aqueous coating composition which comprises at least one aqueous resin selected from polyester, alkyd, acrylic, acryl modified--polyester and acryl modified--alkyd resins, and at least one water--insoluble resinous particles obtained by the polymerization or copolymerization of .alpha., .beta.--ethylenically unsaturated monomers, which is characterized by that said resinous particles are composed of mixture of (A) group of particles having a mean grain diameter of 0.3.about.6.mu. and (B) group of particles having a mean grain diameter of 0.01.about.0.1.mu., in weight ratio of (A)/(B)=99.9/0.1.about.40/60 and that the solid weight ratio of said aqueous resin to water insoluble resinous particles is 99/1.about.15/85. The coating composition is well balanced in application characteristics and in film performance as gloss and surface smoothness and hence is quite useful as a top coat.

Abstract: A dispersion stabilizer for dispersing solid particles into a liquid medium, which comprises resin particles bearing a zwitter-ionic group in the molecule, said resin particles each having substantially an average particle size of not more than 1500 .ANG. when measured by electron microscopic observation.

Abstract: A process for preparing hydroxyalkylaminosulfonic acids which comprises reacting a hydroxyalkylamine of the formula: ##STR1## wherein R.sub.1 is a C.sub.1 -C.sub.20 hydroxyalkyl group optionally containing --O-- or --COO-- in the alkyl chain, and R.sub.2 is a hydrogen atom, a C.sub.1 -C.sub.20 hydroxyalkyl group optionally containing --O-- or --COO-- in the alkyl chain, or a lower alkyl group, with an alkali metal salt of an .alpha.,.beta.-unsaturated sulfonic acid of the formula: ##STR2## wherein R.sub.3 is a hydrogen atom or a methyl group and M is an alkali metal, followed by elimination of the alkali metal to give a hydroxyalkylaminosulfonic acid of the formula: ##STR3## wherein R.sub.1 and R.sub.3 are each as defined above and R.sub.2 ' is a hydrogen atom, a C.sub.1 -C.sub.20 hydroxyalkyl group optionally containing --O-- or --COO-- in the alkyl chain, a lower alkyl group or a group of the formula: ##STR4## wherein R.sub.3 is as defined above.

Abstract: A polymerizable amino acid compound of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each hydrogen or methyl, R.sub.4 is C.sub.1 -C.sub.20 alkyl optionally bearing at least one hydroxyl and optionally having --O-- or --COO-- in the alkyl chain, R.sub.5 is hydrogen or C.sub.1 -C.sub.20 alkyl optionally bearing at least one hydroxyl and optionally having --O-- or --COO-- in the alkyl chain, or when R.sub.4 and R.sub.5 are taken together with the nitrogen atom to which they are attached, they represent a nitrogen atom containing heterocyclic group, R.sub.6 is an alkylene group having not more than 6 carbon atoms and A is --COO-- or --SO.sub.3 --, provided that when R.sub.4 is C.sub.1 -C.sub.20 alkyl, R.sub.5 is not hydrogen, which is highly soluble in water or organic solvents without any acidic or basic substance and can be introduced into the molecule of high molecular compounds.

Abstract: A resinous emulsion is prepared by copolymerizing .alpha.,.beta.-ethylenically unsaturated monomers and a crosslinking monomer which is at least difunctional, in an aqueous medium in the presence of a resin having an amphoionic group of the formula: ##STR1## wherein R represents substituted or unsubstituted C.sub.1 -C.sub.6 alkylene or phenylene and Y is --COOH or --SO.sub.3 H, or in the presence of a resin having the above said amphoionic group and a polymerizable .alpha.,.beta.-unsaturated bonding. The thus obtained emulsion is useful for the obtainment of crosslinked polymer microparticles to be incorporated in a high solid coating composition or for the preparation of aqueous coating composition because of having contained no harmful emulsifier or surfactant.

Abstract: An aqueous coating composition which comprises (A) at least one aqueous resin selected from acryl, alkyd, polyester, acryl-modified alkyd and acryl-modified polyester resins, (B) at least one component selected from water-insoluble resinous particles having an average grain diameter of 0.3 to 6.mu., obtained by a polymerization of ethylenically unsaturated compound(s), and (C) optional additives, the weight ratio of said (A) to (B) (in solid) being 99:1.about.15:85. This aqueous paint is especially useful as a top-coat.

Abstract: An aqueous coating composition which comprises (A) at least one aqueous resin selected from acryl, alkyd, polyester, acryl--modified alkyd and acryl-modified polyester resins, (B) at least one component selected from water-insoluble resinous particles having an average grain diameter of 0.01 to 0.1.mu., obtained by a polymerization of ethylenically unsaturated compound(s), and (C) optional additives, the weight ratio of said (A) to (B) (in solid) being 99:1.about.15:85. This aqueous paint is especially useful as a top-coat.

Abstract: A process for preparing hydroxyalkylaminosulfonic acids which comprises reacting a hydroxyalkylamine of the formula: ##STR1## wherein R.sub.1 is a C.sub.1 -C.sub.20 hydroxyalkyl group optionally containing --O-- or --COO-- in the alkyl chain, and R.sub.2 is a hydrogen atom, a C.sub.1 -C.sub.20 hydroxyalkyl group optionally containing --O-- or --COO-- in the alkyl chain, or a lower alkyl group, with an alkali metal salt of an .alpha.,.beta.-unsaturated sulfonic acid of the formula: ##STR2## wherein R.sub.3 is a hydrogen atom or a methyl group and M is an alkali metal, followed by elimination of the alkali metal to give a hydroxyalkylaminosulfonic acid of the formula: ##STR3## wherein R.sub.1 and R.sub.3 are each as defined above and R.sub.2 ' is a hydrogen atom, a C.sub.1 -C.sub.20 hydroxyalkyl group optionally containing --O-- or --COO-- in the alkyl chain, a lower alkyl group or a group of the formula: ##STR4## wherein R.sub.3 is as defined above.

Abstract: A high solid coating composition comprising(A) a film-forming polymer having functional group(s) capable of reacting with the crosslinking agent (D) hereinafter referred to,(B) a volatile organic liquid diluent in which the polymer (A) is carried,(C) polymer microparticles having an average diameter of from 0.02 to 40 microns, which are insoluble in the combination of the film-forming polymer (A) and the diluent (B) and are maintained in a stabilized state of dispersion therein, and(D) a crosslinking agent dissolved in the diluent (B), which is characterized by the fact that the microparticles (C) are composed of crosslinked copolymer obtained by copolymerizing at least one of the polymerizable amino acid compounds of the formula: ##STR1## with other polymerizable .alpha.,.beta.-ethylenically unsaturated monomers, at least part of which is crosslinking monomer.

Abstract: A high solid coating composition comprising(A) a film-forming polymer having functional group(s) capable of reacting with the crosslinking agent (D) hereinafter referred to,(B) a volatile organic liquid diluent in which the polymer (A) is carried,(C) polymer microparticles having an average diameter of from 0.02 to 40 microns, which are insoluble in the combination of the film-forming polymer (A) and the diluent (B) and are maintained in a stabilized state of dispersion therein, and(D) a crosslinking agent dissolved in the diluent (B),which is characterized in that the microparticles (C) are composed of crosslinked copolymer of .alpha.,.beta.-ethylenically unsaturated monomers carrying thereon a resinous portion having an amphoionic group of the formula: ##STR1## wherein R is a member selected from optionally substituted alkylene having 1 to 6 carbon atoms and phenylene group and Y is --COOH or --SO.sub.3 H.

Abstract: A polymerizable amino acid compound of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are each hydrogen or methyl, R.sub.4 is C.sub.1 -C.sub.20 alkyl optionally bearing at least one hydroxyl and optionally having --O-- or --COO-- in the alkyl chain, R.sub.5 is hydrogen or C.sub.1 -C.sub.20 alkyl optionally bearing at least one hydroxyl and optionally having --O-- or --COO-- in the alkyl chain, or when R.sub.4 and R.sub.5 are taken together with the nitrogen atom to which they are attached, they represent a nitrogen atom containing heterocyclic group, R.sub.6 is an alkylene group having not more than 6 carbon atoms and A is --COO-- or --SO.sub.3 --, provided that when R.sub.4 is C.sub.1 -C.sub.20 alkyl, R.sub.5 is not hydrogen, which is highly soluble in water or organic solvents without any acidic or basic substance and can be introduced into the molecule of high molecular compounds.

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: 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: An aqueous emulsion comprising a polymeric resin prepared by polymerizing (a) at least one amino acid of either one of the formula: ##STR1## and the formula: ##STR2## with (b) at least one other polymerizable monomer in an aqueous medium, the component (a) and at least a portion of the component (b) being introduced separately into the reaction system.