A METHOD FOR PREPARING POLYMER BLENDS WHICH CONTAIN IN SITU LIQUID CRYSTAL POLYMER FIBERS

摘要

A two-step process for the preparation of a mixture which contains in situ liquid crystal polymer fibers and one or more matrix polymers, wherein, in the first step, a mixture of a liquid crystal polymer and a matrix polymer is prepared which contains liquid crystal polymer 60-95 % (concentrate), by compounding the polymer mixture at so high a temperature that the liquid crystal resin will melt, and in the second step, the obtained mixture is diluted with the matrix resin so that the final mixture will contain liquid crystal resin 5-60 %, by compounding the mixture at a temperature at which the liquid crystal resin will not melt but the matrix resin will.