Herstellungsverfahren mit Kontinuierlichem Mischer für Tpe-O und damit Erhaltenes Tpe-O

Details

Veröffentlichungs-Nr.

EP4768213

Anmeldetag

3. Dezember 2025

Veröffentlichung

1. Juli 2026

Rechtsraum

EP

Abstract

The present invention relates to a production process of a thermoplastic elastomer of olefinic nature, comprising the subsequent steps of: a) simultaneously loading from 40% by weight to 85% by weight of LDPE and/or LLDPE and/or HDPE film in the form of ground flakes and from 15% by weight to 60% by weight of atactic PP copolymer into a buffer (10) equipped with augers (12) for a first mixing of LDPE and/or LLDPE and/or HDPE and atactic PP copolymer, the percentages being expressed with respect to the total weight of the thermoplastic elastomer of olefinic nature; b) placing the product of the first mixing of LDPE and/or LLDPE and/or HDPE and atactic PP copolymer of step a) into a hot continuous mixer (16) so as to continuously melt and amalgamate the LDPE and/or LLDPE and/or HDPE with the atactic PP copolymer; c) passing the melted and amalgamated product of step b) through a calender (18), thus obtaining a slab, and subsequently allowing the slab to cool; d) placing the slab of step c) into a mill (24) in order to grind it, thus obtaining thermoplastic elastomer flakes; e) sending the thermoplastic elastomer flakes of step d) to a first mixing silo (28) where the flakes are mixed and cooled, preferably to 60°C or to room temperature, thus obtaining a thermoplastic elastomer of olefinic nature.

Anmelder

Firma

SERMAG S.r.l.

Land

🇮🇹 Italien