THERMOSETTING POLYMIDABLE SCHIFF BASED RESINS, THEIR PREPARATION AND THEIR APPLICATIONS

摘要

Thermosetting Schiff base resins, their preparation and their applications are described. These thermosetting Schiff base resins can be defined as corresponding to the general formula: BR/ (CF DRAWING IN BOPI The radicals Ar1, Ar2 and Ar3 are chosen such that the softening temperature of the resins is less than about 150 ° C. The resins can be prepared by direct condensation of the resins. an ethynyl benzaldehyde or acetophenone on a telechelic diamine oligomer obtained by reaction of a diamine containing flexibilizing groups on a benzhydrol tetracarboxylic acid derivative. These Schiff base resins can be used by mass thermal polymerization to prepare adhesives or matrices of composites. / P