Poly-n-vinyl pyrrole compound molding composition, molding process and product

Claim 1

THE METHOD OF PRODUCING MOLDINGS OF POLYMERIC N-VINYL PYRROLE COMPOUNDS CONSISTING OF FIBERS OF SAID POLYMERIC N-VINYL PYRROLE COMPOUNDS CEMENTED TOGETHER BY AN UNFIBERED POLYMERIC N-VINYL PYRROLE COMPOSITION, SAID MOLDINGS HAVING A POWER FACTOR AFTER WATER IMMERSION SUBSTANTIALLY EQUAL TO THEIR POWER FACTOR BEFORE SUCH IMMERSION, WHICH COMPRISES MIXING MOLECULARLYORIENTED FIBERS OF A HIGH POLYMER OF AN N-VINYL PYRROLE COMPOUND HAVING A HIVH SOFTENING POINT WITH FROM 10-75% OF AN UNFIBERED FINELY-DIVIDED RELATIVELY LOW SOFTENING POINT N-VINYL PYRROLE COMPOUND HAVING A SOFTENING POINT AT LEAST 5* C. BELOW THE SOFTENING POINT OF SAID HIGH SOFTENING POINT MATERIAL AND SELECTED FROM THE GROUP CONSISTING OF MONOMERIC POLYMERIZABLE N-VINYL PYRROLE COMPOUNDS, LOW POLYMERS OF N-VINYL PYRROLE COMPOUNDS AND HIGH POLYMERS OF N-VINYL PYRROLE COMPOUNDS CONTAINING FROM 5-35% OF A COMPATIBLE PLASTICIZER HAVING A LOW SOFTENING POINT SO AS TO FORM A MECHANICAL MIXTURE IN WHICH SAID FIBERS OF SAID HIGH SOFTENING POINT MATERIAL RETAIN THEIR INDIVIDUAL IDENTITY, AND SUBJECTING THE THUS-OBTAINED MIXTURE TO A MOLDING OPERATION UNDER PRESSURE AT A TEMPERATURE BETWEEN THE SOFTENING POINTS OF SAID LOW SOFTENING POINT CONSTITUENT AND SAID HIGH SOFTENING POINT CONSTITUENT, WHEREBY SAID PARTICLES OF SAID HIGH SOFTENING POINT MATERIAL ARE NOT SUBSTANTIALLY ALTERED IN SAID MOLDING OPERATION AND A MOLDED ARTICLE HAVING THE PROPERTIES SPECIFIED IS OBTAINED.

Claim 2

THE METHOD OF PRODUCING MOLDINGS OF POLYMERIC N-VINYL PYRROLE COMPOUNDS CONSISTING OF FIBERS OF SAID POLYMERIC N-VINYL PYRROLE COMPOUNDS CEMENTED TOGETHER BY AN UNFIBERED POLYMERIC N-VINYL PYRROLE COMPOSITION, SAID MOLDINGS HAVING A POWER FACTOR AFTER WATER IMMERSION SUBSTANTIALLY EQUAL TO THEIR POWER FACTOR BEFORE SUCH IMMERSION, WHICH COMPRISES MIXING MOLECULARLYORIENTED FIBERS OF A HIGH POLYMER OF AN N-VINYL PYRROLE COMPOUND HAVING A HIVH SOFTENING POINT WITH FROM 10-75% OF AN UNFIBERED FINELY-DIVIDED RELATIVELY LOW SOFTENING POINT N-VINYL PYRROLE COMPOUND HAVING A SOFTENING POINT AT LEAST 5* C. BELOW THE SOFTENING POINT OF SAID HIGH SOFTENING POINT MATERIAL AND SELECTED FROM THE GROUP CONSISTING OF MONOMERIC POLYMERIZABLE N-VINYL PYRROLE COMPOUNDS, LOW POLYMERS OF N-VINYL PYRROLE COMPOUNDS AND HIGH POLYMERS OF N-VINYL PYRROLE COMPOUNDS CONTAINING FROM 5-35% OF A COMPATIBLE PLASTICIZER HAVING A LOW SOFTENING POINT SO AS TO FORM A MECHANICAL MIXTURE IN WHICH SAID FIBERS OF SAID HIGH SOFTENING POINT MATERIAL RETAIN THEIR INDIVIDUAL IDENTITY, AND SUBJECTING THE THUS-OBTAINED MIXTURE TO A MOLDING OPERATION UNDER PRESSURE AT A TEMPERATURE BETWEEN THE SOFTENING POINTS OF SAID LOW SOFTENING POINT CONSTITUENT AND SAID HIGH SOFTENING POINT CONSTITUENT, WHEREBY SAID PARTICLES OF SAID HIGH SOFTENING POINT MATERIAL ARE NOT SUBSTANTIALLY ALTERED IN SAID MOLDING OPERATION AND A MOLDED ARTICLE HAVING THE PROPERTIES SPECIFIED IS OBTAINED.