process for the production of styrene ethylene butene mixtures - styrene and / or copolymer styrene - propylene - butene - styrene in the form of powder and related artifacts.consisting of these copolymers, obtained by injection.

摘要

This concerns a procedure that allows you to obtain SEBS and/or SPBS in the form of a rheological powder, this latter being capable of being plasticised by means of a special injector and of being injected in closed moulds to obtain gel products with a hardness of between 5 and 40 SH00.