[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.

Provided is a manufacturing method of a stainless steel sheet having etching patterns. The method includes: coating a coating composition on a stainless steel sheet to form a coating layer; and forming a matte coated film layer, having an etching effect, on the coating layer. The coating composition comprises: 10 to 30 wt% of a silane-based compound, 0.5 to 6 wt% of an organic acid, 0.1 to 3 wt% of a vanadium compound, 0.1 to 3 wt% of a magnesium compound, and a remainder of a solvent.

Provided is a manufacturing method of a stainless steel sheet having etching patterns. The method includes: coating a coating composition on a stainless steel sheet to form a coating layer; and forming a matte coated film layer, having an etching effect, on the coating layer. The coating composition comprises: 10 to 30 wt% of a silane-based compound, 0.5 to 6 wt% of an organic acid, 0.1 to 3 wt% of a vanadium compound, 0.1 to 3 wt% of a magnesium compound, and a remainder of a solvent.

Disclosed herein is a coating composition obtained by mixing a resin and/or hardener; a sagging control agent (SCA) reactive to resin and/or hardener; and a catalyst. Further disclosed herein are methods of preparing 1K and 2K coating compositions and using the coating compositions in an automotive to form a clearcoat.

Disclosed herein is a coating composition obtained by mixing a resin and/or hardener; a sagging control agent (SCA) reactive to resin and/or hardener; and a catalyst. Further disclosed herein are methods of preparing 1K and 2K coating compositions and using the coating compositions in an automotive to form a clearcoat.

This invention is to provide a hard coating film, comprising a polymethyl methacrylate (PMMA) base film and an antiglare hard coating layer formed thereon, wherein the antiglare hard coating layer comprises a (meth)acrylate composition, an initiator, a plurality of silica nanoparticles, a plurality of organic microparticles and a leveling agent. The (meth)acrylate composition comprises a urethane (meth)acrylate oligomer with a functionality of 6 to 15 and a molecular weight ranging between 1,000 and 4,500, and at least one (meth)acrylate monomer with a functionality of 3 to 6, and at least one (meth)acrylate monomer with functionality of less than 3.

This invention is to provide a hard coating film, comprising a polymethyl methacrylate (PMMA) base film and an antiglare hard coating layer formed thereon, wherein the antiglare hard coating layer comprises a (meth)acrylate composition, an initiator, a plurality of silica nanoparticles, a plurality of organic microparticles and a leveling agent. The (meth)acrylate composition comprises a urethane (meth)acrylate oligomer with a functionality of 6 to 15 and a molecular weight ranging between 1,000 and 4,500, and at least one (meth)acrylate monomer with a functionality of 3 to 6, and at least one (meth)acrylate monomer with functionality of less than 3.

The invention pertains to a graphene painting. The graphene painting comprises: a component A and a component B, the component A includes 40 to 50 parts by weight of epoxy resin, 6 to 10 parts by weight of acrylic resin, 15 to 20 parts by weight of zinc powder, 0.4 to 2 parts by weight of graphene, 2 to 5 parts by weight of dispersant, 0.5 to 4 parts by weight of coupling agent, 1 to 3 parts by weight of leveling agent, 6 to 10 parts by weight of filler, 9 to 14 parts by weight of synergist, 22 to 30 parts by weight of solvent; the component B includes 1 to 4 parts by weight of curing agent, 3 to 5 parts by weight of diluent. The graphene painting is coated on the surface of a magnet, which improves the corrosion resistance of the magnet and heat dissipation performance.

A fouling-proof structure is applicable to synthetic leather or fabric and it includes an alcohol-resistant layer; and a water-based fouling-proof layer disposed on the alcohol-resistant layer, wherein the alcohol-resistant layer is formed by curing an alcohol-resistant combination, and the alcohol-resistant combination comprises polyurethane resin, wherein the water-based fouling-proof layer is formed by curing a water-based fouling-proof combination, and the water-based fouling-proof combination comprises polyurethane resin, water, polymerized siloxanes, water-based PTFE and silicone oil.

A fouling-proof structure is applicable to synthetic leather or fabric and it includes an alcohol-resistant layer; and a water-based fouling-proof layer disposed on the alcohol-resistant layer, wherein the alcohol-resistant layer is formed by curing an alcohol-resistant combination, and the alcohol-resistant combination comprises polyurethane resin, wherein the water-based fouling-proof layer is formed by curing a water-based fouling-proof combination, and the water-based fouling-proof combination comprises polyurethane resin, water, polymerized siloxanes, water-based PTFE and silicone oil.