The present invention relates to a method of treating PVC plates as well as plates and panels manufactured by this method. Further, the invention relates to plates and panels, in particular wall, ceiling or floor panels, comprising a heat-treated carrier plate (12) based on polyvinyl chloride with a density of, for example, 900 to 2,500 kg/m.sup.3 and a film (17) applied thereon. The film is a thin PVC-film and comprises a decorative pattern (18) directly printed thereon.

The present invention provides a coating composition capable of forming a coating film having a good appearance and design of a coating film and having coating film properties such as scratch resistance with a good balance. Furthermore, the present invention provides a method for forming a multilayer coating film including forming a coating film using the coating composition of the present invention.

The present disclosure relates to an aqueous basecoat material including as binder, at least one aqueous, acrylate-based microgel dispersion (MD), and also at least one pigment paste including at least one color and/or effect pigment, and also as paste binder, at least one polymer of olefinically unsaturated monomers, where the polymer includes functional groups for nonionic stabilization of the polymer in water, and also functional groups selected from the group of silicon-containing, phosphorus-containing, and urea-containing groups, the aqueous basecoat material further including less than 0.5 wt %, based on its total weight, of synthetic phyllosilicates.

A method of forming a multilayer coating film with excellent flip-flop properties and smoothness and allowing formation of a high-design multilayer coating film. In a method of forming a multilayer coating film comprising: a low-brightness intercoating film; a first base coating film; a second base coating film formed on an object to be coated; and a clear coating film formed on the second base coating film; the first base coating film is obtained by applying a first aqueous base coating material, the second base coating film is obtained by applying a second aqueous base coating material containing a brightness pigment, the clear coating film, with specific compositions and properties, is formed on a low-brightness intercoating film by a wet-on-wet method and the multilayer coating film is heat cured to form a cured multilayer coating film.

Provided is a waterborne resin crosslinking agent and the like capable of inhibiting lowering of gloss (relative specular glossiness) of cured films (waterborne resin coating films) after heating. The waterborne resin crosslinking agent includes a polycarbodiimide compound (A) and a polycarbodiimide compound (B); the polycarbodiimide compound (A) has a structure in which isocyanate groups at both terminals are each capped with a hydrophilic organic compound, and at least one of the hydrophilic organic compounds has a molecular weight of 340 or more; the polycarbodiimide compound (B) has a structure in which isocyanate groups at both terminals are each capped with a monool compound having 3 to 18 carbon atoms; when the monool compound has 3 to 17 carbon atoms, the polycarbodiimide compound (A) is in an amount of 5 to 95 parts by mass per 100 parts by mass in total of the polycarbodiimide compound (A) and the polycarbodiimide compound (B); and when the monool compound has 18 carbon atoms, the polycarbodiimide compound (A) is in an amount of 30 to 70 parts by mass per 100 parts by mass in total of the polycarbodiimide compound (A) and the polycarbodiimide compound (B).

[Problem] To provide a surface control agent for a water-based coating, the surface control agent having both cissing prevention properties and overcoatability when used for applications requiring excellent appearance and overcoatability. [Solution] The surface control agent for a water-based coating includes: a copolymer containing, as constituent monomers, a dibasic acid ester (A) having a polymerizable unsaturated double bond in an amount of 10% by mass or more and 99% by mass or less, and an ether group-containing polymerizable unsaturated monomer (B) having a (meth)acryloyl group, a vinyl ether group, or an allyl group in an amount of 1% by mass or more and 90% by mass or less, wherein the copolymer has a weight-average molecular weight of 1,000 or more and 100,000 or less.

Disclosed herein is an aqueous, one-pack coating composition including a polymer, a crosslinking agent, a polymeric surface-active agent, and an organic rheology control agent. The total solids content of the coating composition is from 7.5-11.5 wt.-%; the viscosity at 23° C. is from 2000-12000 mPas at a shear rate of 0.1 s-1¬; the amount of the polymeric surface-active agent is from 0.5-25 wt.-% based on the total solids content of the coating composition; the amount of the organic rheology control agent is from 5-12 wt.-% based on the total solids content of the coating composition; and the coating composition does not contain platelet-shaped particulate material having a median particle size of 2 μm or more. Further disclosed herein are methods of producing a coating and applying the coating with a device producing a coating composition jet, and substrates coated by the methods.

The present invention provides a coloring base coating material capable of forming a base coating film superior in design property (e.g., unevenness of a luster pigment), adhesion, and water resistance while satisfying environmental considerations such as shortening of drying time, and also provides a coated article obtained from the coloring base coating material. The present invention provides a coating method including: a step of applying a coloring base coating material to a molded article for an automobile part made of a plastic material to form an uncured first coating film, a step of applying a two-pack clear coating material to the uncured first coating film to form an uncured second coating film, and a step of baking and curing the uncured first coating film and the uncured second coating film to form a multilayer coating film, wherein the coloring base coating material is specified.

A method of treating PVC plates as well as plates and panels manufactured by this method. The plates and panels, in particular wall, ceiling or floor panels, comprise a heat-treated carrier plate based on polyvinyl chloride with a density of, for example, 900 to 2,500 kg/m.sup.3 and a film applied thereon. The film is a thin PVC-film and comprises a decorative pattern directly printed thereon.

A method of treating PVC plates as well as plates and panels manufactured by this method. The plates and panels, in particular wall, ceiling or floor panels, comprise a heat-treated carrier plate based on polyvinyl chloride with a density of, for example, 900 to 2,500 kg/m.sup.3 and a film applied thereon. The film is a thin PVC-film and comprises a decorative pattern directly printed thereon.