PROCESS FOR PIGMENTING LINEAR SATURATED POLYESTERS

摘要

A pigment can be uniformly distributed throughout a linear saturated polyester without substantial degradation of the polyester by combining about 100 parts by weight of the polyester with about 0.1-4 parts by weight of a slurry containing about 2-50 percent by weight of the pigment and about 50-98 percent by weight of a chlorinated biphenyl or diester of phthalic acid and them mixing the combined polyester and slurry above the melting point of the polyester.