Abstract: Polybenzazole polymer dopes are spun into fibers at high speed by passing through a spinneret with proper selection of hole geometry, followed by spin-drawing to a spin-draw ratio of at least 20, washing, taking up and drying. The take up speed is at least about 150 meters per minute, and the fibers are spun in at least 10 km lengths without a break.

Abstract: The performance of epoxy resins in several end-uses is enhanced by the presence of small quantities of hydrolyzed resin terminated by .alpha.-glycol groups. The invention is a process in which a mixture that contains liquid epoxy resin and water is reacted at elevated temperatures in order to hydrolyze epoxy groups into .alpha.-glycol groups, characterized in that: (1) the reaction temperature is between 130.degree. C. and 200.degree. C; (2) the reaction mixture contains 0.5 and 10 parts water per 100 parts resin by weight; and (3) the mixture contains 0 to 1 weight percent organic solvents and 0 to 100 ppm each of: organic acids, organic diacids, phosphonium compounds, and alkali or alkaline earth metals and their salts. The process raises the level of .alpha.-glycol groups in the resin, but uses no solvents or catalysts, so that it is easy to clean up the resulting resin.

Abstract: Powder coating compositions that have a low melt viscosity contain:(1) 20 to 80 parts of a multifunctional epoxy resin component;(2) 80 to 20 parts of an essentially linear acid-terminated polyester resin component.