HT-1 — A new high temperature electrical insulation

HT-1 is the designation for an experimental high temperature resistant polymeric material under development by the Du Pont Company. It is being developed to fulfill the need for a product which combines durability under high temperature conditions with those mechanical and electrical properties required for acceptable performance in a wide range of industrial end uses. HT-1 can be produced as filament yarn, staple fibers, paper, and in thick or boardlike structures. On the basis of experimental product evaluations and encouraging market prospects, a pilot plant for production of the material is being constructed. This unit will have a nominal capacity of 1MM pounds per year of product and is expected to be on stream about the end of 1962.