EP 1265732 A1 20021218 - METHOD FOR GRANULATING THERMOPLASTIC POLYMERS
Title (en)
METHOD FOR GRANULATING THERMOPLASTIC POLYMERS
Title (de)
VERFAHREN ZUM GRANULIEREN VON THERMOPLASTISCHEN POLYMEREN
Title (fr)
PROCEDE DE GRANULATION DE POLYMERES THERMOPLASTIQUES
Publication
Application
Priority
- DE 10013948 A 20000321
- EP 0102778 W 20010313
Abstract (en)
[origin: WO0170473A1] The invention relates to a method for granulating thermoplastic polymers, especially thermoplastic polyolefins, according to which the polymer powder produced in the polymerization reactor is melted and homogenized, forced through an extrusion nozzle and granulated. According to the invention, the polymer powder is subjected to a heat treatment prior to being charged on the extruder so that the polymer powder is fed to the extruder at an elevated powder temperature. The inventive method is especially suitable for granulating polyethylene or polypropylene.
IPC 1-7
B29B 13/02; B28B 13/06; B29B 9/06; B29C 47/10; B29B 7/60; B29C 31/02; B29B 7/82
IPC 8 full level
B29B 9/06 (2006.01); B29B 13/02 (2006.01); B29C 48/285 (2019.01); B29C 48/04 (2019.01); B29K 23/00 (2006.01); B29K 67/00 (2006.01); B29K 77/00 (2006.01)
CPC (source: EP KR US)
B29B 9/06 (2013.01 - EP KR US); B29B 13/02 (2013.01 - KR); B29B 13/021 (2013.01 - EP US); B29C 48/285 (2019.01 - EP US); B29C 48/287 (2019.01 - EP US); B29C 48/022 (2019.01 - EP US); B29C 48/04 (2019.01 - EP US); B29C 48/288 (2019.01 - EP US); B29K 2023/06 (2013.01 - EP US); B29K 2023/12 (2013.01 - EP US)
Citation (search report)
See references of WO 0170473A1
Designated contracting state (EPC)
DE ES FI FR GB IT
DOCDB simple family (publication)
WO 0170473 A1 20010927; AU 3929401 A 20011003; BR 0109331 A 20021224; CA 2403431 A1 20020917; CN 1418145 A 20030514; DE 10013948 A1 20010927; EP 1265732 A1 20021218; JP 2003530237 A 20031014; KR 20030031470 A 20030421; RU 2002128016 A 20040220; RU 2263576 C2 20051110; US 2003047831 A1 20030313
DOCDB simple family (application)
EP 0102778 W 20010313; AU 3929401 A 20010313; BR 0109331 A 20010313; CA 2403431 A 20010313; CN 01806851 A 20010313; DE 10013948 A 20000321; EP 01913869 A 20010313; JP 2001568708 A 20010313; KR 20027012397 A 20020919; RU 2002128016 A 20010313; US 22170602 A 20020913