Abstract: The invention comprises a curable composition comprising: (i) a blocked reactive component wherein the blocked reactive component is a blocked isocyanate or a blocked isothiocyanate; (ii) a functional compound reactive with the blocked reactive component, the functional compound containing reactive hydrogen; (iii) a catalyst for promoting the reaction of the reactive component with the blocked functional compound, wherein said catalyst is based on the reaction product of manganese, cobalt, nickel, copper, zinc, germanium, antimony, or bismuth, or the oxides thereof with a mercaptan, or an organic acid, wherein said organic acid is hexanoic, oxalic, adipic, lactic, tartaric, salicylic, thioglycolic, succinic, or mercapto succinic acid, or the reaction product of copper or germanium, or the oxides thereof with a lower aliphatic acid.

Abstract: Disclosed is an aqueous dispersion of a transparent powder coating consisting of a solid powder component and an aqueous component. The solid powder component includes at least one epoxy group-containing binder, at least one crosslinking agent, and optionally catalysts, adjuvants, or additives typical for transparent powder coatings. The binder contains 30-45% glycidyl-containing monomers and optionally vinylaromatic compounds such as styrene. The crosslinking agent is preferably a straight-chain aliphatic dicarboxylic acid and/or a carboxy-functional polyester. The aqueous component includes at least one nonionic thickener and optional materials such as catalysts, adjuvants, and/or other such materials. The nonionic thickener is preferably a nonionic associative thickener. The invention also provides a process for preparing the aqueous dispersion of the invention and a process for coating a vehicle body with the aqueous dispersion of the invention.

Abstract: The present invention is directed to a functional latex polymer composition resistant to hydrolysis which contains a vinyl polymer of copolymerizable monoethylenically unsaturated monomers where at least one monomer contains at least one hydrolyzable functional group. The combined oxygen and nitrogen content of the vinyl polymer is up to about 27 wt %, based on the monomers in the vinyl polymer.

Abstract: Process for making organic solvent-free aqueous crosslinkable polymer composition comprising: a) preparing an aqueous solution of an acid-functional oligomer with Tg 10 to 125.degree. C. and having crosslinker functional groups; b) conducting an aqueous emulsion polymerization to make an aqueous emulsion of an olefinic hydrophobic polymer in the presence of the aqueous oligomer solution, the hydrophobic polymer having Tg at least 25.degree. C. below that of the oligomer and optionally crosslinker functional groups, and c) combining with a crosslinking agent reactable with the crosslinker groups of the oligomer and polymer, said composition having Koenig hardness of .gtoreq.40 sec and minimum film forming temperature (MFFT) .ltoreq.55.degree. C. Also the aqueous composition so formed and its use in various applications. The aqueous composition has excellent properties and in particular an advantageous balance of MFFT and Koenig hardness.

Abstract: The present invention comprises a curable composition comprising:(i) a blocked reactive component comprising a blocked isocyanate or a blocked isothiocyanate;(ii) a functional compound containing reactive hydrogen;(iii) a triorganotin catalyst for promoting the reaction of the blocked reactive component with the functional compound.The composition may also be admixed with water.

Abstract: Fine particles of high heat resistant polymer obtained by emulsion polymerization or seeded polymerization of at least one epoxy ester (C) having two or more unsaturated bonds in one molecule and at least one reactive monomer (D) having at least one unsaturated double bond in one molecule, in the absence of a water-insoluble inorganic material as a dispersion stabilizer, the epoxy ester (C) being obtained by adding at least one unsaturated monobasic acid (B) to at least one epoxide (A-1) having at least one glycidyl group and one monocyclic hydrocarbon group in one molecule, and/or at least one epoxide (A-2) having at least one cycloaliphatic epoxy group in one molecule. The fine polymer particles have excellent heat resistance and solvent resistance, and an aqueous or alcoholic dispersion of such fine polymer particles is produced therefrom.

Abstract: An epoxy resin composition which is tough and has excellent heat resistance and adhesion is obtained by dispersing, in an epoxy resin, polymer particles with a glass transition temperature of lower than 20.degree. C. obtained by emulsion polymerization of a (meth)acrylic acid ester monomer by using, as an emulsifier, an end alkyl group-containing polymer with an acid value of greater than 200 or a salt thereof obtained by polymerization of a polymerizable monomer containing an unsaturated carboxylic acid in the presence of an alkyl mercaptan. The epoxy resin composition is useful, for example, as adhesives, molding materials, paints, sealants.

Abstract: A color coating composition having excellent appearance, acid resistance and mar resistance is provided. Such excellent properties are achieved by the combination of an aminoplast-curing coating system with a curable coating system comprising a particular half esterified acid anhydrides, hydroxyl groups and epoxy groups.

Abstract: The present invention provides an aqueous curable resin composition which comprises: [A] a resin component containing, as functional groups, a specific aprotic onium salt-containing group, a hydroxyl group, an epoxy group, and a hydrolyzable group directly bound to a silicon atom or a hydroxysilyl group, and [B] a metal chelate compound selected from aluminum chelate compound, zirconium chelate compound and titanium chelate compound. The composition of the present invention is an aqueous composition which has an excellent storage stability and good curability and is capable of giving a cured product having a high water resistance.

Abstract: An aqueous coating composition is provided which comprises a generally lipophilic crosslinkable binder, optionally a chemical curing/crosslinking agent for the crosslinkable binder, and a special reactive amphiphatic emulsifier comprising a lipophilic backbone having separately pendant therefrom (a) at least one activated unsaturated group and (b) at least one of a specified class of hydrophilic polyoxyalkylene groups, and possessing an HLB value of at least 6.0.

Abstract: An aqueous resin composition includes a polymer and an aqueous medium, wherein the polymer at least partially includes a polyolefin chloride resin and has a carboxyl group and an oxazoline group.

Abstract: Aqueous curable polymer dispersion comprising a polyester and/or polyurethane and a polymeric product having a Tg from 25.degree.-100.degree. C. obtainable by free-radical polymerisation of a mixture of (a) an olefinic monomer free from epoxy and epoxy reactive groups, (b) a monomer and/or oligomer having at least two epoxy groups and (c) a group reactive towards epoxy groups.

Abstract: A resin composition for aqueous coating, comprising, as the main components, a resin having hydroxyl group(s) and cationic group(s) and a certain novolac-substituted phenol type epoxy resin. This composition has excellent bath stability and low-temperature curability and is useful in cationic electrocoatings, in particular.

Abstract: An aqueous protective coating composition particularly useful for can coatings is based on a polymeric binder comprising epoxy crosslinked microgel particles. The microgel polymer is produced by dispersing into water a carbon grafted, carboxyl functional acrylic-epoxy copolymer, and combined with low molecular weight diepoxide, followed by coreaction and crosslinking between the carboxyl copolymer and diepoxide to form stable aqueous dispersed microgel particles.

Abstract: An electrodeposition coating composition is described comprising:(a) an aqueous dispersion of a water-dispersible, electrically-depositable, at least partially neutralized cationic resin, and(b) polymer microparticles, said polymer particles being prepared by:(1) blending an acid-neutralized tertiary amino-functional acrylic polymer and a polyepoxide,(2) dispersing the blended mixture in an aqueous medium to form a dispersion of microparticles of the blended mixture, and(3) heating the dispersion to crosslink the acrylic and polyepoxide in the microparticles.

Abstract: A cathodic electrodeposition paint containing a cationically modified epoxy resin and a crosslinker dispersed in an acidic aqueous medium is disclosed which contains an auxiliary resin component which is capable of improving the surface smoothness of the cured paint films and which is a reaction product produced by reacting a t-alkylphenol novolac epoxy resin with an amount of an active hydrogen compound sufficient to open all epoxy rings. When the thus produced auxiliary resin has a hydroxyl group, reaction thereof with a lactone or alkylene oxide, to graft a soft segment to the auxiliary resin improves not only the surface smoothness but also the impact strength of the paint films.

Abstract: An aqueous coating composition for a plastic substrate which is a dispersion in (a) an aqueous medium of the following components:(b) 5-40 wt. %, calculated as resin solids, of a water-miscible olefin resin modified with a carboxyl-containing unsaturated monomer;(c) 90-40 wt. %, calculated as resin solids, of at least one water-miscible urethane resin;(d) 5-20 wt. %, calculated as resin solids, of a water-miscible epoxy resin; and(e) optionally a pigment.

Abstract: Aqueous dispersions containA) from 20 to 90% by weight of a dispersed polymer having a glass transition temperature above 30.degree. C. andB) from 10 to 80% by weight of a tri-, tetra-, penta-or hexa(meth)acrylate of an alkoxylated, trivalent to hexavalent alcohol having a mean degree of alkoxylation of the hydroxyl groups of the alcohol, defined as the quotient of the number of alkoxy groups to the number of hydroxyl groups, ie. the functionality of the alcohol prior to the alkoxylation, of at least 0.5,the stated weights being based on the sum of A) and B).

Abstract: A coating composition is stable upon long term storage and provides a highly durable coating on various substrates, such as wood. It can be a clear coating or a staining composition. The critical components of the composition are a self-curing vinyl polymer, a neutralized polyurethane, a water-soluble catalyst to promote rapid curing under ambient conditions, and an aldehyde, carbodiimide or polyfunctional aziridine which reduces discoloration of the composition upon storage.

Abstract: A resin composition for aqueous coating, comprising as main components(A) a resin having hydroxyl groups and cationic groups, and(B) a compound having, in the molecule, at least two glycidyl groups each in a glycidylamino group represented by the following formula ##STR1## (R is a group selected from a hydrogen atom and a glycidyl group) directly bonding to carbon atoms of the aromatic ring. This composition is excellent in storage stability, low-temperature curability, etc. and is useful in cationic electrocoatings, in particular.

Abstract: Cathodic electrodeposition paints are rendered hardly susceptible to oil droplet-induced craters by incorporating an amine-modified acrylic copolymer of t-butyl (meth)acrylate with a hydroxyl group-containing monomer and an oxirane ring-containing monomer in the form of an aqueous emulsion. The amine-modified acrylic copolymer may be an adduct with a half blocked organic diisocyanate. The paint gives a cured film substantially free from oil droplet-induced craters and having a good adhesion to an overcoating and a good surface smoothness.

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: A cationically electrodepositable resin composition containing as main component primary hydroxyl group-containing cationic resin obtained by reacting epoxy resin (A) having at least three epoxy group-containing functional groups represented by the following structural formula (I) ##STR1## with primary or secondary amine compound (B) containing primary hydroxyl group and optionally, further phenol compound (C) having at least one phenolic hydroxyl group in one molecule, as well as a cationically electrodepositable paint composition containing as main components said cationic resin and curing agent.

Abstract: A cationically electrodepositable resin composition containing as main component primary hydroxyl group-containing cationic resin obtained by reacting epoxy resin (A) having at least three epoxy group-containing functional groups represented by the following structural formula (I) ##STR1## with primary or secondary amine compound (B) containing primary hydroxyl group and optionally, further phenol compound (C) having at least one phenolic hydroxyl group in one molecule, as well as a cationically electrodepositable paint composition containing as main components said cationic resin and curing agent.

Abstract: Curable electrocoating compositions and the use of these compositions in a method of electrodeposition are disclosed. The electrocoating compositions comprise an aqueous dispersion of an active hydrogen-containing ionic resin and a capped polyisocyanate in which the polyisocyanate comprises a mixture of a diphenyl-2,4'-diisocyanate, a diphenyl-4,4'-diisocyanate and optionally polyphenyl polyisocyanate in which the diphenyl-2,4'-diisocyanate comprises at least 5 percent by weight of a polyisocyanate mixture. The capped polyisocyanate mixture results in a more stable aqueous dispersion than comparable dispersions prepared with capped polyisocyanates derived from the more common diphenyl-4,4'-diisocyanate and mixtures of diphenyl-4,4'-diisocyanate with polyphenyl polyisocyanate.

Abstract: An improved aqueous coating agent for providing a decorative and protective coating for wood or wood products contains as a binder polyacrylate resins having chemically incorporated therein air-drying, unsaturated fatty acid moieties and quaternary ammonium moieties, and said agent is prepared by reactingA) excess polyacrylates containing epoxide groups and having an epoxide group equivalent weight of 200 to 1,300 withB) drying fatty acids, in an addition reaction with ester formation,C) reacting at least some of the remaining epoxide groups in the A)-B) reaction product with monoamine ammonium salts which contain an N-H bond in an addition reaction, anddissolving the reaction product obtained from step C) and containing quaternary ammonium groups in water.

Abstract: A cationically electrodepositable resin composition containing as main component primary hydroxyl group-containing cationic resin obtained by reacting epoxy resin (A) having at least three epoxy group-containing functional groups represented by the following structural formula (I) ##STR1## with primary or secondary amine compound (B) containing primary hydroxyl group and optionally, further phenol compound (C) having at least one phenolic hydroxyl group in one molecule, as well as a cationically electrodepositable paint composition containing as main components said cationic resin and curing agent.

Abstract: A size for carbon fibers and glass fibers comprises an epoxy resin and a polyester with a hydrophilic and a hydrophobic moiety in the molecule.

Abstract: A self-curing aqueous resin dispersion obtained by neutralizing a resin having at least one alicyclic epoxy group and at least two carboxyl groups in the molecule, with a base and dispersing the neutralized resin in water.

Abstract: An aqueous electrophoretic coating material, which can be deposited at the cathode and contains(A) 90 to 50% by weight, based on the total portion of synthetic resin vehicle, of one or several polycondensation, polymerization and/or poly-addition resins, the resin or, in the event that several resins are present, their mixture(a) having a number average molecular weight (Mn) of 700 to 10,000(b) having 1.2.times.10.sup.23 to 21.7.times.10.sup.23 lateral or terminal double bonds per 1,000 g, corresponding to a hydrogenation iodine number of 5 to 90,(c) optionally containing primary and/or secondary hydroxyl groups, corresponding to a hydroxyl number of 0 to 450 mg KOH/g of resin, and(d) tertiary amino groups corresponding to an amine number of 30 to 450 mg KOH/g of resin.

Abstract: An air-drying aqueous coating composition for electrodeposition comprising[A] a water-solubilized product or a water-dispersed product obtained by reacting (A-1) an epoxy resin and (A-2) a (semi)drying oil fatty acid-modified vinyl polymer having an acid value of 10 to 200 in such proportions that the solids weight ratio of the component (A-1) to the component (A-2) is from 90/10 to 5/95, and[B] an amphoteric organic solvent having affinity for component [A].

Abstract: Thermal adhesive type coating composition including (A) an emulsion of a thermoplastic synthetic resin having a glass transition temperature of not lower than 60.degree. C., (B) an emulsion of an epoxy resin, (C) an amine base curing agent for the epoxy resin which is capable of reacting with the component (B) when heated, and (D) a film forming assistant agent having solubility in water at 20.degree. C. of not higher than 20 g/100 cc and having solubility therein of water at 20.degree. C. of not lower than 0.5 g/100 cc, the weight ratio of the solid resin contents of the component (A) to those of the component (B) being 60/40 to 98/2, is disclosed. The composition protects a substrate coated with the composition as the coating at ambient temperature and, when heated under pressure application, causes the substrates coated with the composition to be bonded to each other with a strong adhesive strength.

Abstract: Self-crosslinking cationic paint binders based on ureide-modified epoxy resins; the preparation of these binders and their use, particularly in electrodeposition paints, is described. The modification is effected with carboxylic compounds carrying ureide groups, blocked isocyanate groups and, optionally, tertiary amino groups. The carboxylic compounds are obtained through reaction of dicarboxylic acid anhydrides or compounds carrying dicarboxylic acid anhydrides with a substituted urea or a substituted biuret. The products show excellent resistance and adhesion characteristics.

Abstract: Water-dilutable paint binders for the formulation of ecological stoving paints containing only minor quantities of organic solvents are described. The binders are partial condensation products of (A) a polycondensation, polymerization, or polyaddition resin as the film-forming polycarboxy compound (PC-component), and (B) an epoxy resin amine adduct (PH-component) carrying hydroxy groups and being water-insoluble under normal processing conditions. The products afford improved corrosion resistance and are particularly suited for the formulation of primers, intercoats (primer surfacers), and single coat paints.

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: Self-crosslinking cationic paint binders based on ureide-modified epoxy resins; the preparation of these binders and their use, particularly in electrodeposition paints, is described. The modification is effected with carboxylic compounds carrying ureide groups, blocked isocyanate groups and, optionally, tertiary amino groups. The carboxylic compounds are obtained through reaction of dicarboxylic acid anhydrides or compounds carrying dicarboxylic acid anhydrides with a substituted urea or a substituted biuret. The products show excellent resistance and adhesion characteristics.

Abstract: A heat-sensitive color developable composition contains a color developing dye, an acidic material capable of developing the dye by heating and epoxy group-modified polyvinyl alcohol.

Abstract: An aqueous, cationically electrodepositable coating composition contains a ternary sulfonium or quaternary phosphonium group containing resin, an aminoplast or phenoplast crosslinking agent and a catalytic amount of a non-ionic ester of a sulfonic acid as latent acid catalyst to catalyze the reaction between the sulfonium or phosphonium group containing resin and the aminoplast crosslinking agent.

Abstract: The invention relates to an aqueous cathodic electrocoating material which contains a synthetic resin binder containing amino and/or hydroxyl groups and capable of being rendered water-soluble by the addition of an acid. The synthetic resin binder contains a mixture of crosslinking agents, as well as pigments, fillers, corrosion inhibitors, surface coating assistants, if appropriate catalysts, and organic solvents in an amount of up to 15% by weight, based on the total weight of the coating material. The mixture of crosslinking agents consists of at least two crosslinking agents which possess different reactivities and are based on activated esters and/or polyisocyanates blocked with different blocking agents. Different reactivities means that the crosslinking reactions begin at temperatures which are at least 10.degree. C. apart. The crosslinking reagent which reacts first is present in an amount of from 15 to 60 mol %, based on the mixture of crosslinking agents.

Abstract: An epoxy resin encapsulating composition for semiconductor packages consisting essentially of an epoxy resin adduct of epichlorohydrin and an aromatic hydroxyl-containing compound, and an inorganic ion-exchange solid material admixed with the epoxy resin adduct. The ion-exchange solid material is selected to have the capability of exchanging its mobile anions with the undesired chlorine ions which occur inherently in the package made from the encapsulating composition and are very likely to corrode the metallic conductor on the semiconductor to be encapsulated. The ion-exchange solid material is characterized to include antimony and bismuth as basic materials forming an ion-exchange network which carries the mobile anions to be substituted with the chlorine ions. This ion-exchange material also is found to be also effective for trapping undesired alkali metal ions, for example, Na.sup.

Abstract: Process for the preparation of soluble synthetic resins which are free from monomeric amines and have NH bonds by reaction of (A) compounds which carry epoxide groups with (B) polyamines, in which the reaction is carried out in a homogeneous phase system in the absence or presence of resin solvents, the polyamine (B) being employed in excess and the resulting reaction product being freed from the unreacted polyamine portions by circulatory distillation in the presence of a resin solvent with the addition of water and supply of heat. The synthetic resins thus prepared are employed as self-crosslinking binders and in combination with crosslinking agents or in modified form for coatings or impregnations.

Abstract: A heat-hardenable binder mixture based on organic resins comprises an organic resin having primary and/or secondary and, if appropriate, also additional tertiary amino groups and a crosslinking agent based on an organic compound which contains at least 2 .beta.-hydroxyalkyl ester groups. The binder mixture can additionally contain pigments, fillers, crosslinking catalysts, corrosion inhibitors and other paint auxiliaries. The binder mixture is used in a process for preparing coatings by applying a coating agent in the form of a film to a substrate and subsequently hardening the film by stoving.

Abstract: Compositions for textile treatment comprising an admixture of:(a) an aqueous emulsion of a copolymer of a monomeric mixture consisting essentially of an oxirane-containing monoethylenically-unsaturated material and at least one other monoethylenically-unsaturated material selected from the group characterized by the formula ##STR1## wherein R is H or C.sub.1 to C.sub.4 alkyl and R' is a straight chain or branched chain radical of a primary or secondary alkanol, alkoxyalkanol or alkylthiaalkanol having up to 14 carbon atoms, and(b) a water soluble or water dispersible polyamine which is composed of at least 4 alkylenimine units (--CH--CH--N--) which occur in sequences of such alkylenimine units having the formula A ##STR2## wherein R.sub.1 and R.sub.2 are independently selected from hydrogen, and lower alkyl radicals of 1 to 4 carbon atoms, R.sub.

Abstract: A binder which is suitable for coating agents and is based on a combination which is essentially free of protective colloids and consists of an aqueous primary dispersion of a synthetic polymer and a water-insoluble polycondensate of phenols and aldehydes, some of which may be replaced by ketones, is prepared by a process in which the phenolic components for the polycondensate are first mixed with an aqueous primary dispersion of a synthetic polymer which contains glycidyl, carbonyl, N-methylol, N-alkoxymethyl, ether, amino and/or hydrazo groups and may furthermore contain carboxyl or hydroxyl groups, and the polycondensation with the aldehydes (and ketones) is then carried out in this mixture, under conventional conditions.The binders prepared according to the invention are useful as binders for dispersion paints and coatings, in particular as heat-curable binders for metal finishes.

Abstract: Disclosed herein are water-based coatings comprising as an essential film-former resinous blends of acid group-containing resins and modified epoxy resins which have been found to be particularly useful as electrodepositable compositions for can coatings.

Abstract: Polymer concrete compositions comprising an unsaturated thermosettable resin(s) and/or ethylenically unsaturated monomer(s), an aggregate component and a water absorbent polymer are cured to provide polymer concrete with enhanced adhesion to substrates, especially wet concrete. A primer or coating composition for concrete comprising a water absorbent polymer and an unsaturated thermosettable composition is also disclosed.

Abstract: A composition for bonding metal powders which is used in an amount of at most about 7 parts by weight as the solids content per 100 parts by weight of a metal powder for obtaining a flexible metal powder molding which is capable of tolerating deformation at a radius of curvature of up to 15 mm, the composition comprising as a main monomer an acrylic polymer having a weight average molecular weight of about 50,000 to 1,500,000 which comprises alkyl (meth)acrylate having an average carbon atom number of 3 to 12 in the alkyl moiety, or a mixture of the acrylic polymer and a resin which gives adhesive property, as a main component, the main component having a glass transition temperature in a range of about -70.degree. to -10.degree. C. and an elastic modulus in a range of about 0.05 to 50 kg/cm.sup.2 at 25.degree. C.

Abstract: An aqueous coating composition which comprises a carboxy group-containing resin powder (I), a basic compound (II) and an aqueous resin (III), optionally with a reactive compound (IV) to at least one of the resin powder (I) and the aqueous resin (III), in an aqueous medium, the basic compound (II) being contained in an amount of 0.4 to 1.2 equivalents to the carboxy group in the resin powder (I) so as to disperse the resin powder (I) into the aqueous medium and the weight proportion of the resin powder (I) and the aqueous resin (III) being from 2:98 to 98:2. The coating composition thus obtained is excellent in storage stability and workability and can provide a coating film having good performances.

Abstract: Emulsion polymers produced by polymerizing ethylenically unsaturated monomers in an aqueous medium can be substantially improved by incorporating into the monomer mixture a minor amount of blend of epoxy resin and glycidyl acrylate. The epoxy modified emulsion polymers are particularly useful as ambient or low temperature thermosetting latices for film-forming coatings.

Abstract: Compositions for textile treatment comprising an admixture of:(a) an aqueous emulsion of a copolymer of a monomeric mixture consisting essentially of an oxirane-containing monoethylenically-unsaturated material and at least one other monoethylenically-unsaturated material selected from the group characterized by the formula ##STR1## wherein R is H or C.sub.1 to C.sub.4 alkyl and R' is a straight chain or branched chain radical of a primary or secondary alkanol, alkoxyalkanol or alkylthiaalkanol having up to 14 carbon atoms, and(b) a water soluble or water dispersible polyamine which is composed of at least 4 alkylenimine units (--CH--CH--N--) which occur in sequences of such alkylenimine units having the formula A ##STR2## wherein R.sub.1 and R.sub.2 are independently selected from hydrogen, and lower alkyl radicals of 1 to 4 carbon atoms, R.sub.