Enamel binder, its use in a coating compound, a process for enamelling a wire and a heat resistant substrate with an enamel coating

摘要

Surface-coating binders containing… a) polyvinyl acetals,… b) organic compounds containing both (i) carbodiimide and/or uretoneimine groups and (ii) blocked isocyanate groups, and optionally… c) further assistants and additives, where from 1 to 300 parts by weight of component b) are present per 100 parts by weight of component a),… are used in coating compositions for heat-resistant substrates, in particular in wire enamels.