1. Superfine Thermoplastic Fibers
2. and “Technical Developments in the Melt-Blowing Process and Its Applications in Absorbent Products”, Insight 81, Absorbent Products Conference, San Antonio, Tex., 1981.
3. U.S. Patent 3,972,759 (1976).
4. and U.S. Patent 3,849,241 (1974).