PROCESS FOR PRODUCING A DIBLOCO COPOLYMER, DIBLOCO COPOLYMER AND USE OF A DIBLOCO COPOLYMER

摘要

The present invention relates to a process for producing a diblock copolymer comprising reacting at least one aromatic polyester having a melting point in the range of 160 ° to 350 ° C and at least one diol polymer having a melting point of less than 100 ° C. 100 ° C and a temperature above 200 ° C to obtain a mixture (ga); and the reaction of the mixture (ga) with at least one diisocyanate,wherein the diisocyanate is used at a molar content of at least 0.9 based on the alcohol groups of the diol polymers. The present invention further relates to diblock copolymers obtained or obtainable in accordance with such a process and the use of such diblock copolymers for the production of extruded, injection molded and pressed articles and also foams, cable sheaths, hoses, profiles, drive belts, fibers, nonwovens, films, frames, plugs, housings, cushioning elements for the electrical industry, the automotive industry, mechanical construction, 3-d printing, medicine and consumer goods.