Thermal aging of laminates

We shall be concerned primarily with thermal endurance of the types of materials defined in NEMA Pub. No. LI 1-1965(1). It is our purpose to briefly review the contribution of the Industrial Laminate Section (NEMA) to the present knowledge of thermal stability of laminated, thermosetting plastics, and to discuss a program to provide further knowledge. It hardly needs to be mentioned that the contribution by NEMA was made possible and valuable not only because of the efforts of this association, but because of a mutual exchange of information and ideas with individual workers and technical societies?much of which has been presented in previous Electrical Insulation Conferences, of which this is the Sixth.