Abstract: The new polyester polyols, which have an acid value below 10, a hydroxyl value of 50 to 200, a hydroxyl functionality above 2 and a number average molecular weight M.sub.n of 800 to 5,000 and which are liquid at 23.degree. C. or are homogeneously soluble in di-2-ethylhexyl phthalate in a concentration of at least 70% by weight, the viscosity of the 70% solution being from 1 to 35 Pa.s, are used as anchoring agents for polymer systems and as polymeric plasticizers.

Abstract: This invention relates to special combinations of polyurethane-urea-forming starting components which are suitable for corrosion-inhibiting wear prevention by casting, centrifugal casting or spraying. Said components are liquid, relatively low viscosity mixtures of polymer-containing or polyadduct-containing polypropylene oxide polyols and/or ethylene oxide-containing polypropylene oxide polyols having a small content of special, low-melting, readily soluble aromatic diamines and tertiary amine catalysts as component (A) which are reacted at room temperature with liquid polyisocyanates based on diphenyl methane diisocyanate or their NCO-prepolymers with polyether polyols as components (B).