Abstract: Corrosion-inhibiting compositions, having improved corrosion- or rust-inhibiting properties, comprising a mixture including a thixotropic greaselike overbased alkaline earth metal organic sulfonate composition and minor proportions of alkoxylated, particularly ethoxylated and/or propoxylated, oxidized petrolatums, as corrosion inhibitors, said compositions being especially characterized by low water absorption properties.

Abstract: The hydrolysis resistance of a urethane elastomer prepared by reacting a hydroxy compound with a prepolymer in a weight ratio of between 5/95 and 95/5 is improved; the hydroxy compound consists of at least one saturated polyester resin and/or at least one chain-extending agent, if necessary in the presence of the usual additives, each resin and each chain-extending agent having at least two OH end groups; the prepolymer is prepared by reacting at least one saturated polyester resin having at least two OH end groups and at least one organic isocyanate of functionality .gtoreq.2, in molar excess. To this end, to prepare at least one polyester resin, a fraction of the polyacid(s) used is replaced by at least one polymerized fatty acid, consisting substantially of a dimer and/or a trimer, the initial total content of polymerized fatty acid(s) being between 1 and 35% by weight, referred to the finished product.