Patent ID: 6127513
Filing Date: 2000-10-03
Classification: C08G,C08J

Abstract:
A process for preparing a spherical polyamide having an average particle size of about 100 .mu.m or less, without post-treatment of said polyamide, which consists essentially of:a) dispersing a polyamide monomer in a liquid polymerization medium to form a mixture which is inactive and chemically stable at the polymerization temperature of the polyamide;b) heating the mixture, while stirring, to the polymerization temperature, wherein said polymerization temperature is greater than the melting temperature of the polyamide monomer and the melting temperature of the formed polyamide and lower than the deterioration temperature of the polymerization medium, to thereby form fine particles of the polyamide in the polymerization reaction medium;c) cooling the polymerization reaction mixture to a temperature wherein the fine spherical polyamide particles solidify and recovering the fine spherical particles of the polyamide, having an average particle size of 100 .mu.m or less.