| abstract |
In the solid state polymerization of monomeric material to intractable polymer there is provided a method, whereby the otherwise intractable polymer may be produced in the desired molded shape, wherein the monomeric material, in dry, solid, finely-divided form, is heated from a temperature below melting temperature up to and through the polymerization temperature while held under substantial mechanical pressure in a confined molding zone adapted to permit the escape of gases evolved during the heating. |