UN PROCEDIMIENTO DE PREPARACION DE UNA COMPOSICION CON FUN- CIONES ANHIDRIDO UTIL COMO AGENTE RETICULANTE PARA RESINAS

摘要

1. Composition containing acid anhydride groups, characterised in that it is obtained by reacting trimellitic anhydride, under the action of heat, with a mixture of one or more diols and of one or more polyols containing more than two functional groups, or with one or more polyols containing more than two functional groups.