An unsaturated polyester resin composition includes an unsaturated polyester, a polymerizable monomer, a low profile agent, and aluminum hydroxide. The unsaturated polyester is a polymerized product of polybasic acid and polyhydric alcohol. The polybasic acid contains unsaturated polybasic acid, and the unsaturated polybasic acid is blended in an amount of 80 mol % or more relative to 100 mol % the polybasic acid. The low profile agent contains polyvinyl acetate, and the polyvinyl acetate is blended in an amount of 3 parts by mass or more and 10 parts by mass or less relative to 100 parts by mass of a total amount of the unsaturated polyester, polymerizable monomer, and low profile agent. The aluminum hydroxide is blended in an amount of 150 parts by mass or more and 300 parts by mass or less relative to 100 parts by mass of a total amount of the unsaturated polyester, polymerizable monomer, and low profile agent.

An unsaturated polyester resin composition includes an unsaturated polyester, a polymerizable monomer, a low profile agent, and aluminum hydroxide. The unsaturated polyester is a polymerized product of polybasic acid and polyhydric alcohol. The polybasic acid contains unsaturated polybasic acid, and the unsaturated polybasic acid is blended in an amount of 80 mol % or more relative to 100 mol % the polybasic acid. The low profile agent contains polyvinyl acetate, and the polyvinyl acetate is blended in an amount of 3 parts by mass or more and 10 parts by mass or less relative to 100 parts by mass of a total amount of the unsaturated polyester, polymerizable monomer, and low profile agent. The aluminum hydroxide is blended in an amount of 150 parts by mass or more and 300 parts by mass or less relative to 100 parts by mass of a total amount of the unsaturated polyester, polymerizable monomer, and low profile agent.

An unsaturated polyester resin composition includes an unsaturated polyester, a polymerizable monomer, a low profile agent, and aluminum hydroxide. The unsaturated polyester is a polymerized product of polybasic acid and polyhydric alcohol. The polybasic acid contains unsaturated polybasic acid, and the unsaturated polybasic acid is blended in an amount of 80 mol % or more relative to 100 mol % the polybasic acid. The low profile agent contains polyvinyl acetate, and the polyvinyl acetate is blended in an amount of 3 parts by mass or more and 10 parts by mass or less relative to 100 parts by mass of a total amount of the unsaturated polyester, polymerizable monomer, and low profile agent. The aluminum hydroxide is blended in an amount of 150 parts by mass or more and 300 parts by mass or less relative to 100 parts by mass of a total amount of the unsaturated polyester, polymerizable monomer, and low profile agent.

A curing agent composition and a curing agent coating formula thereof are provided. The curing agent composition includes 5 to 25 wt % of an ester group-containing amine end group adduct, 2 to 25 wt % of a C8-C22 hydrophobic saturated or unsaturated fatty amine, 2 to 25 wt % of a polyamine compound, 2 to 20 wt % of a silane compound, and 10 to 60 wt % of an ether solvent.

A curing agent composition and a curing agent coating formula thereof are provided. The curing agent composition includes 5 to 25 wt % of an ester group-containing amine end group adduct, 2 to 25 wt % of a C8-C22 hydrophobic saturated or unsaturated fatty amine, 2 to 25 wt % of a polyamine compound, 2 to 20 wt % of a silane compound, and 10 to 60 wt % of an ether solvent.

The present disclosure relates to an acrylic modified polyester resin, and specifically, a modified polyester resin prepared by grafting an acrylic monomer to a polyester prepolymer. The polyester prepolymer is formed from pentaerythritol, a polyol monomer, an organic polycarboxylic acid monomer and a cycloalkanedicarboxylic acid monomer and contains a double bond on its backbone.

The present disclosure also relates to a method for preparing the acrylic modified polyester resin.

The present disclosure relates to an acrylic modified polyester resin, and specifically, a modified polyester resin prepared by grafting an acrylic monomer to a polyester prepolymer. The polyester prepolymer is formed from pentaerythritol, a polyol monomer, an organic polycarboxylic acid monomer and a cycloalkanedicarboxylic acid monomer and contains a double bond on its backbone.

The present disclosure also relates to a method for preparing the acrylic modified polyester resin.

The present disclosure relates to an acrylic modified polyester resin, and specifically, a modified polyester resin prepared by grafting an acrylic monomer to a polyester prepolymer. The polyester prepolymer is formed from pentaerythritol, a polyol monomer, an organic polycarboxylic acid monomer and a cycloalkanedicarboxylic acid monomer and contains a double bond on its backbone.

The present disclosure also relates to a method for preparing the acrylic modified polyester resin.

Provided is a resin composition for carbon fiber-reinforced plastic molding, which contains a radical curable resin (A) having a hydroxy group, an unsaturated monomer (B), and isophorone diisocyanate. The resin composition for carbon fiber-reinforced plastic molding shows little change in viscosity over time, is excellent in storage stability, and can be used to obtain a molded article excellent in various physical properties such as flexural strength, flexural modulus, and interlayer shear strength by various molding methods. Therefore, the molded article can be suitably used in automobile members, railway vehicle members, aerospace vehicle members, watercraft members, housing equipment members, sports members, vehicle members, construction civil engineering members, casings of office automation equipment, and the like.

Provided is a resin composition for carbon fiber-reinforced plastic molding, which contains a radical curable resin (A) having a hydroxy group, an unsaturated monomer (B), and isophorone diisocyanate. The resin composition for carbon fiber-reinforced plastic molding shows little change in viscosity over time, is excellent in storage stability, and can be used to obtain a molded article excellent in various physical properties such as flexural strength, flexural modulus, and interlayer shear strength by various molding methods. Therefore, the molded article can be suitably used in automobile members, railway vehicle members, aerospace vehicle members, watercraft members, housing equipment members, sports members, vehicle members, construction civil engineering members, casings of office automation equipment, and the like.