Consiglio Nazionale Delle Ricerche

Enrico Pedemonte

Giovanni C Alfonso

Antonio Turturro

Saverio Russo

Ezio Martuscelli

Saverio Ruso

Concetto Puglisi

New polycaprolactam-based polymer compositions have been prepared by polymerising caprolactam in the presence of a quantity of nitrile rubber not exceeding 25% by weight of the total mixture weight, and preferably 5-20% by weight. The polymerisation is conducted in the presence of anionic initiators and anionic polymerisation activators. The new compositions obtained are extremely uniform, and have physical and elasticity characteristics which substantially coincide with nylon-6. There resistance to impact and deformation is however substantially higher.

Polycaprolactam-based polymer compositions

A process for preparing self-extinguishing formed thermoplastic bodies based on polycaprolactam, which consists in polymerizing, by anionic way, in suitable molds .epsilon.-caprolactam, by previously incorporating into said .epsilon.-caprolactam a flame-retardant and optionally at least a known coadjuvant substance, said flame-retardant being composed of red phosphorus powder micro-encapsulated in a synthetic resin, preferably in a melamine resin.

Process for preparing self-extinguishing formed thermo-plastic bodies

Growing community of inventors

Genova, Italy

Enrico Pedemonte