| abstract |
The invention relates to prepolymers, to compositions containing prepolymers, to methods for preparing prepolymers, and to the use of prepolymers in sealants in the aerospace industry. The prepolymer in the main chain contains a ligand capable of binding to the metal. The invention allows to obtain hardened sealants with high tensile strength and improved adhesion to metal surfaces. 17 n. and 28 hp f-ly, 1 ill., 1 tab., 9 ex. |