Method for producing fluoroolefin copolymer powder for powder coating, composition for powder coating, powder coating and coated article

摘要

Production of fluoroolefin copolymer powders for powder coatings that have excellent stability of fluoroolefin copolymer solutions obtained by polymerization in the manufacturing process and can form cured films with excellent appearance when used in powder coatings Providing a method. In the presence of at least one compound (B) selected from a potassium salt, a sodium salt, a magnesium salt, and a hindered amine light stabilizer, and hydrotalcite, each containing a specific monomer. A fluoroolefin having a pH of 3.8 to 6.5 and an APHA value of 1 to 200 by polymerizing in an organic solvent to obtain a suspension and removing insoluble components from the suspension. A copolymer solution is obtained, and the organic solvent is removed from the solution to obtain a fluoroolefin copolymer powder.