Autocatalyzed, thermosetting meterials that are free from external catalysts and are based on condensates of epoxy-functional silanes, and use thereof for production of thermosetting materials

An autocatalyzed, thermally curable composition free from external catalysts and comprising at least one condensate of at least one silane selected from the group of silanes which contain at least one of hydrolyzable atom and one hydrolyzable group and also at least one

• (i) nonhydrolyzable, isocyanate-adduct-group-free group with at least one epoxide group, and at least one nonhydrolyzable, epoxide-group-free group with at least one group selected from the group consisting of
• (a) divalent linking urethane groups —NH—C(X)—X— and —X—(X)C—NH—,
• (b) divalent linking urea groups —HN—C(X)—NH—, and
• (c) monovalent terminal groups Y—C(X)—NH—,
• in which the variable X stands for an oxygen or sulfur atom and the variable Y stands for the radical of a blocking agent for isocyanate groups;
• (ii) at least one nonhydrolzable group with at least one epoxide group and at least one group selected from the group consisting of the groups (a), (b), and (c), and
• (iii) nonhydrolyzable, isocyanate-adduct-group-free group with at least one epoxide group, at least one nonhydrolyzable, epoxide-group-free group with at least one group selected from the group consisting of the groups (a), (b), and (c), and at least one nonhydrolyzable group with at least one epoxide group and at least one group selected from the group consisting of the groups (a), (b), and (c).