Described herein is a water-based, alkaline cleaner concentrate for producing a cleaner for metallic surfaces, the concentrate including a) at least one (meth)acrylic acid homopolymer having a weight-average molar mass in the range from 3 000 to 19 000 g/mol and b) at least one (meth)acrylic acid copolymer having a weight-average molar mass in the range from 50 000 to 100 000 g/mol. Also described herein are a corresponding cleaner for metallic surfaces with reduced pickling erosion, a process for anticorrosive treatment of metallic surfaces that includes a corresponding cleaning step, a metallic surface obtained by the process, and a method of use thereof in the sector of the metalworking industries.

The present invention is directed to an addition polymer comprising an addition polymer backbone; at least one moiety comprising a sulfonic acid group; and at least one carbamate functional group. The present invention is also directed towards methods of making the addition polymer, aqueous resinous dispersions comprising the addition polymer, methods of coating a substrate and coated substrates.

Improved formulations of electrophoretic media that can be incorporated into displays, front plane laminates, inverted front plane laminates, or color changing films. The formulations include a non-polar fluid, a plurality of first charged particles, and charge control agents (CCA) including a quaternary amine and an unsaturated polymeric tail comprising monomers of at least 10 carbon atoms in length. The formulations show improved switching speeds, as well as a larger dynamic range at low temperatures (i.e., below about 0° C.), where compared to state-of-the-art electrophoretic media.

A challenge of the present invention is to provide a water-based coating composition capable of providing a design superior in depth feeling in the formation of a multilayer coating film having a so-called color clear coating film. The present invention relates to a water-based coating composition comprising a coating film-forming resin (i) and a coloring pigment dispersion (ii), wherein the coating film-forming resin (i) comprises: an acrylic resin emulsion (A) having an average particle diameter of 100 nm or less in an amount of 10 to 60% by mass in terms of the resin solid content of the coating film-forming resin (i), a water-soluble acrylic resin (B) in an amount of 5 to 40% by mass in terms of the resin solid content of the coating film-forming resin (i), and a melamine resin (C) in an amount of 20 to 40% by mass in terms of the resin solid content of the coating film-forming resin (i); and the coloring pigment dispersion (ii) comprises a coloring pigment (D) having a 90%-volume particle diameter (D90) of 100 nm or less.

The present invention is directed to an electrodepositable coating composition comprising an acrylic polymer comprising a polymerization product of a polymeric dispersant and an aqueous dispersion of a second-stage ethylenically unsaturated monomer composition comprising greater than 40% by weight of a second-stage hydroxyl-functional (meth)acrylate monomer, based on the total weight of the second-stage ethylenically unsaturated monomer composition; an ionic salt group-containing film-forming polymer different from the acrylic polymer; and a curing agent. Also disclosed are coatings, coated substrates, and methods of coating a substrate.

A coated metal alloy substrate with at least one chamfered edge, a process for producing a coating a metal alloy substrate, and an electronic device having a housing comprising a coated metal alloy substrate are described. The coated metal alloy substrate with at least one chamfered edge comprises a hydrophobic anti-fingerprint layer deposited on the metal alloy substrate, a passivation layer deposited on the at least one chamfered edge, and a water based paint layer deposited on the passivation layer.

A coated metal alloy substrate, a process for producing a coating a metal alloy substrate, and an electronic device having a housing comprising a coated metal alloy substrate are described. The coated metal alloy substrate comprises a passivation layer deposited on the metal alloy substrate, a porous conductive water borne carbon nanotube layer on the passivation layer, and an electrophoretic deposition layer deposited on the porous conductive water borne carbon nanotube layer.

The present invention relates to a substrate having (a) a first material applied to at least a portion of the substrate, and (b) a coating layer deposited from a liquid coating composition including a film-forming resin, and optionally a crosslinker that is reactive with the film-forming resin, in direct contact with at least a portion of the substrate to which the first material has been applied. The first material is (i) a catalyst that catalyzes cure of the liquid coating composition, (ii) a component reactive with the film-forming resin and/or the crosslinker of the liquid coating composition, and/or (iii) a rheology modifier.

The present invention is directed to an electrodepositable coating composition comprising an acrylic polymer comprising a polymerization product of a polymeric dispersant and an aqueous dispersion of a second-stage ethylenically unsaturated monomer composition comprising greater than 40% by weight of a second-stage hydroxyl-functional (meth)acrylate monomer, based on the total weight of the second-stage ethylenically unsaturated monomer composition; an ionic salt group-containing film-forming polymer different from the acrylic polymer; and a curing agent. Also disclosed are coatings, coated substrates, and methods of coating a substrate.

A method is disclosed for producing a multicoat paint system on a metallic substrate by producing a basecoat or a plurality of directly successive basecoats directly on a metallic substrate coated with a cured electrocoat system, producing a clearcoat directly on the one or the topmost of the plurality of basecoats, and subsequently jointly curing the one or the plurality of basecoats and the clearcoat. At least one basecoat material used for producing the basecoats includes at least one predispersed mixture including at least one polyamide having an acid number of less than 20 mg KOH/g, at least one polymeric resin different from the polyamide, and also water and at least one organic solvent.