PRODUCTION OF POWDERY COPOLYMER CONTAINING FLUORINE

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a powdery copolymer containing fluorine without showing any yellowing of the copolymer containing fluorine in its production and also capable of obtaining the same copolymer in a short period of time. SOLUTION: This powdery copolymer is obtained by spray drying a solution of a copolymer containing fluorine as a solid state in a normal temperature e.g. a copolymer obtained by copolymerizing a monomer mixture containing a fluorine-containing vinyl monomer, vinyl ether and/or a vinyl ester of a carboxylic acid as essential monomer components, and a solvent as essential components.