Process for feeding additives into a polymer melt stream

The present invention provides a process for mixing additives into a polymer melt steam, wherein a substream is removed from the polymer melt stream, mixed with additives, and then fed back into the polymer melt stream. In this process, the unmixed substream is sent as a single substream or in a max...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	FINDER HORST
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING MAKING GRANULES OR PREFORMS MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The present invention provides a process for mixing additives into a polymer melt steam, wherein a substream is removed from the polymer melt stream, mixed with additives, and then fed back into the polymer melt stream. In this process, the unmixed substream is sent as a single substream or in a maximum number of n-1 additional substreams directly to one up to a maximum number (n-1) of pump gear wheels of a planet wheel pump with n pump gear wheels. The additives are simultaneously supplied directly without mixing to at least one pump gear wheel of the planet wheel pump, and the substream mixed with the additives is removed from the planet wheel pump centrally at the inlet of the planet wheel pump and fed into the polymer melt stream.