Daicel-huls Ltd.

Hajime Suzuki

A polymer powder is produced by separately melting two or more of oligomers and monomers which are reactive with each other, spraying a mixture of the oligomers and the monomers, while continuously mixing them with each other, the mixture being solid at a normal temperature, having a melt viscosity of 1,000 cps or below at 300 degree C., then cooling the sprayed mixture to obtain a powder thereof, and solid phase-polymerizing it to obtain the polymer powder. It is useful for powder coating.

Process for producing polymer powder

A polyamide resin composition is used in powder coating and comprises a first polyamide having a carboxylic acid at 70 percent or above of the terminal groups thereof and a second polyamide having an amine at 70 percent or above of the terminal groups thereof.

Powder coating resin composition

A polymer powder is produced by separately melting two or more of polymers and monomers which are reactive with each other, spraying a mixture of the polymers and the monomers, while continuously mixing them with each other, the mixture being solid at a normal temperature, having a melt viscosity of 1,000 cps or below at 300 degree C., then cooling the sprayed mixture to obtain a powder thereof, and solid phase-polymerizing it to obtain the polymer powder. It is useful for powder coating.

Growing community of inventors

Hyogo, Japan

Hajime Suzuki