COMPOSITION FOR CLEANING THE POLYCONDENSATE CRYSTALLIZED IN AND ON THE MACHINES FOR MANUFACTURING AND PROCESSING PLASTICS

摘要

The invention relates to a composition for cleaning the polycondensate crystallized in and on the machines for manufacturing and processing plastics, applicable to the plastics industry using polyols and isocyanates, which comprises 1 ... 5 parts by volume of n-butylic alcohol, 90 ... 98 parts by volume of acetone and 1 ... 5 parts by volume of ethylacetate. The composition may be obtained by simply cold stirring and has a rapid and complete action of dissolving the crystallized polycondensate comprising polyols and isocyanates, which is formed both in the depth and on the surface of various parts of the machines for manufacturing and processing the plastics.