SILANE-GRAFTED a-OLEFIN VINYL ACETATE COPOLYMER CONTAINING CROSSLINKABLE SIL YL GROUPS, PROCESS FOR THE PREPARATION THEREOF AND USE FOR THE PREPARATION OF INSULATION OR SHEATH MATERIALS FOR CABLES OR LINES

摘要

A grafted α-olefin-vinyl acetate copolymer containing crosslinkable silyl groups which is composed of one or more α-olefin-vinyl acetate copolymers as component A, of which at least one, as component Al, has a vinyl acetate content of � 60% by weight, based on the total weight of the α-olefin-vinyl acetate copolymer Al, and at least one unsaturated silane which contains at least one hydrolysable group and which is grafted on to the one or more α-olefin-vinyl acetate copolymers, as component B; and a process for the preparation of the grafted α-olefin-vinyl acetate copolymer according to the invention, crosslinkable compositions containing the grafted α-olefin-vinyl acetate copolymer according to the invention and at least one crosslinking catalyst, the use of the crosslinkable compositions according to the invention for the production of insulation or sheath materials for cables or lines, a process for crosslinking the compositions according to the invention by bringing the crosslinkable compositions into contact with water, crosslinked compositions obtainable by the crosslinking process according to the invention and insulation or sheath materials for cables or lines containing the crosslinked composition according to the invention.