Abstract: Aqueous, anodically precipitable electrodeposition lacquer, containing A) an aqueous dispersion consisting of anionically modified polyurethane (meth)acrylates (a1) having terminal, ethylenically unsaturated (meth)acrylic double bonds, and reactive thinners (a2) having at least two ethylenically unsaturated (meth)acrylic double bonds, whereby the (meth)acrylic double bonds from the mixture comprising (a1) and (a2) correspond to a bromine number of 20 to 150 g bromine/100 g solids, and B) optionally photo-initiators and/or optionally thermally activable radical initiators, whereby the terminal ethylenically unsaturated (meth)acrylic double bonds from the polyurethane (meth)acrylates are bonded to the anionically modified polyurethane prepolymer via urethane, urea, amide or ester groups, and optionally conventional auxiliary substances and additives, pigments and/or fillers.

Abstract: Use of solid, finely divided urea compounds to prevent edge migration when stoving electrophoretically deposited electrodeposition lacquers, and electrodeposition lacquers with a content of 0.1 to 5 wt. % of urea compound, related to resin solids.

Abstract: Pigment dispersants prepared by reacting an isocyanate oligomer having an average functionality of at least three with a polyester or polyacrylate, a poly(ethylene glycol)alkyl ether, and a diamine having a primary amine and a tertiary amine have excellent stabilizing properties and offer a wide formulation latitude with a variety of solvent systems, including polar solvents and water, and are particularly useful as pigment dispersants for paints and coating applications.

Abstract: Emulsions are disclosed which contain (a) an aqueous carrier and (b) a polymer mixture of (1) 40-99.5% by weight of a copolymer with a weight average molecular weight of at least 3000; and (2) 0.5-60% by weight of a stabilizing copolymer dispersed in water, wherein the stabilizing copolymer comprises a structured polymer having a hydrophobic portion and a hydrophilic portion, wherein said structured polymer is selected from the group consisting of (i) polymers comprising 5-95% by weight of a hydrophilic macromonomer having at least 10% of an acid functional monomer and 5-95% by weight of at least one hydrophobic monomer polymerized in the presence of the macromonomer; and (ii) polymers comprising 5-95% by weight of a hydrophobic macromonomer and 5-95% by weight of hydrophilic copolymer comprising at least 10% of an acid functional monomer polymerized in the presence of the macromonomer.

Abstract: A thermally curable hot-melt adhesive composition, comprises (A) a prepolymer having isocyanate groups, a number average molecular mass Mn of 700 to 6000 and wherein 50 to 100%, preferably 70-95%, of the reactive isocyanate groups of the prepolymer are blocked, the prepolymer being the reaction product of one or more at least semi-crystalline straight-chain polyesters; one or more amorphous or liquid straight-chain polyesters, optionally one or more polyethers, and one or more diisocyanates; and (B) at least one reactive component selected from the group consisting of diamines, epoxide adducts of diamines, and polyalcohols.

Abstract: Process for working up powder coating waste to yield reusable powder coatings by compacting the powder coating waste without complete melting to yield a sintered product, in which process powder coating residues arising during powder coating production are continuously separated, continuously compacted and the compacted product is continuously ground together with fresh material to be ground of the same batch of powder coating without extrusion to yield a powder coating.

Abstract: A polymer dispersant for pigments based on a graft copolymer wherein the graft copolymer has a weight average molecular weight of at least 3000 and has 10 to 90% by weight of a polymeric backbone and 90 to 10% by weight of macromonomer side chains attached to the backbone and wherein at least 20% by weight of the polymeric backbone has attached thereto an amide group which serves as a pigment anchoring group. The backbone may also have attached thereto an additional pigment anchoring group selected from the group consisting of aromatic ester, aromatic amine, aliphatic amine, and quaternary ammonium groups, or mixtures thereof. These materials disperse a wide variety of pigments and are useful in solvent borne coatings where they can provide improved efficiency of pigment use, lower paint viscosity, and reduced emission of volatile organic solvent.

Abstract: The present invention describes a device for metering powder coatings and powder components for powder and liquid coatings, which comprises a storage vessel at the outlet of which is a free-swinging receiving vessel with a metering base, wherein the receiving vessel is connected to a vibration drive, wherein the distance between the outlet of the storage vessel and the metering base of the receiving vessel is dimensioned as a function of the bulk solids properties of the powder material, wherein the metering base of the receiving vessel is vibrated during metering, and a collecting vessel beneath the receiving vessel, wherein the metered powder material is collected in the collecting vessel.

Abstract: A polymer dispersant for pigments based on an acrylic graft copolymer wherein the graft copolymer has a weight average molecular weight of at least 3000 and has 10 to 90% by weight of a polymeric backbone and 90 to 10% by weight of macromonomer side chains attached to the backbone and wherein the graft copolymer has at least about 1% by weight of a pigment anchoring group selected from the group consisting of an aromatic ester group, aromatic amine group, and quaternary ammonium group, or mixtures thereof, attached to the backbone or the macromonomer. These materials disperse a wide variety of pigments and are useful in solvent borne coatings where they can provide improved efficiency of pigment use, lower paint viscosity, and reduced emission of volatile organic solvent.

Abstract: A fast hardening clear coating composition for repairing a clearcoat/colorcoat finish of a vehicle, which composition is capable of being wet sanded, buffed or polished to a high gloss finish on the same day of application, comprising a film forming binder and an organic liquid carrier, where the binder contains a hydroxyl component comprising a hydroxyl-containing acrylic polymer and a hydroxyl-terminated polyester oligomer, and an organic polyisocyanate crosslinking component, at least portion of which comprises a trimer of isophorone diisocyanate, where the composition further contains, as a combined curing catalyst, at least one dialkyl tin aliphatic carboxylate, at least one tertiary aliphatic mono or diamine, and at least one aliphatic carboxylic acid, in an effective amount such that the clear coating composition on curing at ambient temperatures is in a water spot free and sufficiently hard state for sanding or buffing within about 4 hours after application or on cool down when baked under normal cond

Abstract: Process for producing a multi-layer lacquer finish, in which a surfacer coating compound is applied to a substrate optionally pre-coated with a priming layer and/or further coating layers, and a top coating comprising a colour-imparting and/or special-effect-imparting base lacquer layer and a transparent clear lacquer layer, or a top coating comprising a pigmented one-layer top lacquer, is then applied, in which coating compounds which contain binders which are curable by free radical and/or cationic polymerisation are employed as the surfacer, the base lacquer and the clear lacquer as well as the one-layer top lacquer, and wherein the said binders are cured by means of high-energy radiation.

Abstract: The present invention describes a process for the application of a powder coating to a non-conductive substrate by first exposing the non conductive substrate to a combination of steam and heat at temperatures between 70° C. and 140° C. for a period between 5 seconds and up to 10 minutes, followed by electrostatic application of a powder coating to the substrate which is grounded; this simple and reliable pre-treatment method allows an efficient application of powder coatings to non-conductive substrates resulting in uniform and even deposition of the powder coating over the whole surface including edges and with no adverse effects on the subsequent curing of the powder film.

Abstract: Coating system for the preparation of aqueous coating compositions used for the preparation of waterborne basecoats for the coating of vehicles and vehicle parts in vehicle repair coating, containing: A) 55-95 wt-% of at least one special effect composition, containing at least 15 wt-% water, special effect pigments, at least one water-dilutable resin selected from the group of polyurethane, polyester, and poly(meth)acrylate resins, and optionally organic solvents and additives conventionally used I coating, and B) 5-45 wt-% of a pigment-free component, containing: B1) 0.3-5.0 wt-% of at least one inorganic layered silicate, B2) 1.0-20.0 wt-% of at least one water-dilutable polyurethane resin, which optionally can be modified B3) 75.0-98.7 wt-% water; And optionally organic solvents and additives conventionally used in coating, whereby the wt-% of A and B total 100 wt-% and the wt-% of B1, B2 and B3 total 100 wt-% of component B.

Abstract: A polymer dispersant for pigments based on a random copolymer wherein the copolymer has a weight average molecular weight of at least 3000 and comprises a polymeric backbone of primarily acrylic monomers wherein the backbone contains multiple pigment anchoring groups attached thereto including at least one amide group and one or more additional pigment anchoring groups selected from the group consisting of aromatic esters, aromatic amines, and quaternary ammonium salts. These materials disperse a wide variety of pigments and are useful in solvent borne coatings where they can provide improved efficiency of pigment use, lower paint viscosity, and reduced emission of volatile organic solvent.

Abstract: The present invention provides (i) a novel composition which is the polyol reaction product polyol made by mixing together a polyhydroxyl-tertiary amine, at least two of the hydroxyl groups of said amine being indirectly bonded to a nitrogen atom of said amine through a chain containing at least two carbon atoms, with an organic polyisocyanate, essentially all the isocyanate groups of said polyisocyanate being reacted with hydroxyl groups of said amine, and (ii) a coating composition containing a film forming binder and a volatile organic liquid carrier, said binder containing (I) hydroxyl-containing acrylic polymer and (II) the novel composition (i).

Abstract: The rate of aminolysis of butyrolactones is predictably adjusted by attaching a substituent having a known field effect value (F) to the alpha position before reacting the substituted buytrolactone with an amine. The aminolysis product is a gamma-hydroxy amide. The resulting materials are useful as the cross-linking agents in a variety of coatings and coatings processes.

Abstract: A pigment dispersion useful for forming coating compositions containing dispersed pigment, a non-aqueous carrier liquid and an ABC-block polymer dispersant (binder); wherein the ABC block polymer has a number average molecular weight of about 5,000-20,000 and contains a polymeric A segment, a polymeric B segment and a polymeric C segment; wherein the polymeric A segment of the block polymer is of polymerized monomers selected from the following group: alkyl (meth)acrylate monomers having 1-12 carbon atoms in the alkyl group, aryl (meth)acrylate monomers, cyclo alkyl (meth)acrylate monomers or mixtures of any of the above; the polymeric B segment of the block polymer is of polymerized alkyl amino alkyl (meth)acrylate monomers having 1-4 carbon atoms in the alkyl group quaternized with an alkylating agent; and the polymeric C segment of the block polymer is of polymerized monomers of hydroxy alkyl (meth)acrylate having 1-4 carbon atoms in the alkyl group and monomers selected from the following group: alkyl

Abstract: Process for the production of powder finishes on metallic or non-metallic surfaces, characterized in that powder coating compositions are used which contain resins which may be crosslinked by means of functional groups capable of forming hydrogen bonds, wherein the functional groups are present at a concentration of greater than 100 mmol/kg of powder coating composition, the powder coating compositions are applied to the substrate and are melted and cured by NIR irradiation.

Abstract: A two-component concentrate which includes an aqueous dispersion of a cathodically depositable binder having groups comprising active hydrogen that are cross-linkable using blocked polyisocyanate, as the binder component, and an anhydrous, organic solution of an oxime-blocked isocyanate-functional adduct of aromatic polyisocyanate and at least one compound comprising at least one group capable of addition towards isocyanate and at least one tertiary amino group, as the cross-linking component is used for the preparation of cathodic electrodeposition coating compositions.

Abstract: This invention relates to the oligomerization, polymerization and copolymerization of substituted and unsubstituted &agr;-methylene-&ggr;-butyrolactones and the products thereof, Cobalt (II) and cobalt (III) chain transfer catalysts are used to control the molecular weight and impart an aromatic functionality to the products formed.