PROCESS FOR THE MANUFACTURE OF CRYSTALLINE, CROSSLINKED EPOXIDE RESINS

摘要

The invention relates to the manufacture of crystalline epoxide resins which have at least two crystallite melt temperatures. The cause of the crystallites are molecule blocks which arc derived from aliphatic polyesterpolycarboxylic acids. According to the invention, at least two aliphatic polyester-polycarboxylic acids (D and E), which bear a special relation to each other in respect of the number of -CH2 groups in the primary chain member. are reacted under very specific quantitative conditions with epoxide compounds which contain at least 2 epoxide groups and optionally with curing agents. The synthetic resins thereby obtained are particularly suitable for use as storage material in latent heat accumulators.