The multilayer coating film formation method for forming a multilayer coating film on a substrate comprises the steps of: applying an undercoat paint composition (X) comprising an antioxidant (a1) to a substrate to form at least one layer of an uncured first coating film; applying a topcoat paint composition (Y) containing a carboxy-containing polymer (b1) and an epoxy-containing acrylic resin (b2) to the first coating film to form an uncured second coating film; and simultaneously heating the uncured first coating film and the uncured second coating film to cure the films.

A UV curable composition for forming a polymeric coating on a substrate as described may include an optically clear colorless UV curable base comprising a combination of one or more multifunctional polymer precursor and a fluorinated polymer precursor. One or more of the multifunctional polymer precursor and fluorinated polymer precursor may comprise a non-charged electrically conductive site sufficient to disperse a static charge from the surface of the polymeric coating.

A method of manufacturing a multiple-color plating member includes forming a copper plating layer on at least a part of a surface of a substrate, forming a nickel plating layer on a surface of the copper plating layer, forming a chromium plating layer on a surface of the nickel plating layer, applying a color coating agent onto a surface of the chromium plating layer and then drying the applied color coating agent to form a color coating layer, and applying a clear coating agent onto a surface of the color coating layer and photocuring the applied clear coating agent to form a clear layer. The color coating agent includes 10 to 35% by weight of a modified acrylic resin, 1 to 25% by weight of a pigment, and 40 to 80% by weight of a first solvent. The clear coating agent includes 10 to 30% by weight of a polyester-modified acrylic resin, 5 to 25% by weight of an acrylic oligomer, 5 to 45% by weight of an acrylic monomer, 1 to 15% by weight of a photoinitiator, and 10 to 75% by weight of a second solvent.

A method for the manufacture of a floor (1), comprising at least the following successive steps: obtaining a substrate (2) having at least a wood based upper layer (4); coating the substrate (2), wherein coating the substrate (2) comprises applying at least a first layer of coating (15) on the upper surface (13), curing the first layer of coating (15) using UV rays, applying a second layer of coating (17) on the first layer of coating (15), and curing the second layer of coating (17) using UV rays, wherein the first layer of coating (15) contains a hardener and the second layer of coating (17) contains a filler; applying a primer layer (7) on the coated substrate; digitally printing a dcor (9) on the primer layer (7); and applying a top coat (11) on the dcor (9).

The objective of the present invention is to provide an aqueous coating composition which has excellent curability at low temperatures. The present invention provides an aqueous coating composition which contains an aqueous resin having a hydroxyl group and a carboxyl group (A), a water-dispersible blocked polyisocyanate compound (B), a hydrophilicized carbodiimide compound (C), and an aqueous polyurethane resin (D), wherein the aqueous resin having a hydroxyl group and a carboxyl group (A) has a hydroxyl value of 80 to 200 mgKOH/g and an acid value of 10 to 40 mgKOH/g in terms of resin solid content, the aqueous polyurethane resin (D) has a glass transition point (Tg) of 50 C. or less, and a cured film of the aqueous polyurethane resin (D) has an elongation at break of 400% or more at 20 C.

An overlay film-forming composition used to cause phase separation to a block copolymer-containing layer formed on a substrate, the composition including: (A) a copolymer that includes (a) a unit structure derived from maleimide structure and a unit structure derived from styrene structure; and (B) an ether compound having 8-16 carbon atoms as a solvent. The overlay film-forming composition exhibits good solubility with respect to a hydrophobic solvent, and is able to induce vertical alignment of a block copolymer without causing dissolution, swelling, and the like of the block copolymer-containing layer formed on the substrate.

A superhydrophobic coating composition is provided comprising an NP component and a radical initiator (RI), wherein the NP component comprises NP particles having organic moieties bound to the surface of the NP particles. Also provided is a superhydrophobic coating composition further comprising a fluid. Also provided is a method for preparing a super-hydrophobic (SH) surface, where the method includes mixing an NP component with at least one RI and possibly with a fluid, thereby providing a coating composition, applying the coating composition onto a substrate (pre-coated or containing oxides) thereby providing a coated substrate; and applying radiation to the coated substrate, thereby providing the SH surface on which at least part of the NP component is covalently bound, directly or indirectly, to the substrate.

A superhydrophobic coating composition is provided comprising an NP component and a radical initiator (RI), wherein the NP component comprises NP particles having organic moieties bound to the surface of the NP particles. Also provided is a superhydrophobic coating composition further comprising a fluid. Also provided is a method for preparing a super-hydrophobic (SH) surface, where the method includes mixing an NP component with at least one RI and possibly with a fluid, thereby providing a coating composition, applying the coating composition onto a substrate (pre-coated or containing oxides) thereby providing a coated substrate; and applying radiation to the coated substrate, thereby providing the SH surface on which at least part of the NP component is covalently bound, directly or indirectly, to the substrate.

An object of the present invention is to provide a method for forming a multilayer coating film with excellent performance such as acid resistance, by using a coating composition which is completely different from conventional clear coating compositions and cheaper than conventional non-melamine curing type, acid/epoxy type, and isocyanate type clear coating compositions. A method for forming a multilayer coating film comprising a step (1) of applying a base coating composition and a step (2) of applying a clear coating composition on a coating film formed in the step (1), wherein the clear coating composition causes a curing reaction through a transesterification reaction between a hydroxyl group and an alkyl ester group.

The objective of the present invention is to provide an aqueous coating composition which has excellent curability at low temperatures. The present invention provides an aqueous coating composition which contains an aqueous resin having a hydroxyl group and a carboxyl group (A), a water-dispersible blocked polyisocyanate compound (B), a hydrophilicized carbodiimide compound (C), and an aqueous polyurethane resin (D), wherein the aqueous resin having a hydroxyl group and a carboxyl group (A) has a hydroxyl value of 80 to 200 mgKOH/g and an acid value of 10 to 40 mgKOH/g in terms of resin solid content, the aqueous polyurethane resin (D) has a glass transition point (Tg) of 50 C. or less, and a cured film of the aqueous polyurethane resin (D) has an elongation at break of 400% or more at 20 C.