EP 1654308 A1 20060510 - CONTINUOUS METHOD FOR THE PRODUCTION OF A PIGMENT MASTERBATCH
Title (en)
CONTINUOUS METHOD FOR THE PRODUCTION OF A PIGMENT MASTERBATCH
Title (de)
KONTINUIERLICHES VERFAHREN ZUR HERSTELLUNG EINES PIGMENT-MASTERBATCHES
Title (fr)
PROCEDE CONTINU DE PRODUCTION D'UN MELANGE MAITRE A BASE DE PIGMENT
Publication
Application
Priority
- EP 2004008420 W 20040728
- DE 10335863 A 20030806
Abstract (en)
[origin: WO2005017003A1] The invention relates to a method for producing a pigment masterbatch by means of extrusion. Said method is characterized in that a) a thermoplastic polymer is continuously metered into a twin-screw extruder in a granular or powdery form; b) the metered polymer is melted in the extruder; c) a pumpable pigment press cake containing pigment, water, and/or organic solvent is continuously metered into the melted polymer through an inlet port of the extruder at an increased pressure, the pressure level being such that the boiling temperature of the water and/or the organic solvent is higher than the temperature inside the extruder in the area of said inlet port; d) an optional flow improver is added; e) the pigment is dispersed into the melted polymer from the press cake by applying shearing forces; f) the water and/or the organic solvent is/are eliminated through an outlet port of the extruder at an increased pressure, the pressure level being such that the boiling temperature of the water and/or the organic solvent is higher than the temperature inside the extruder in the area of said outlet port; g) the pigmented polymer melt is discharged from the extruder, chilled, and granulated.
IPC 1-7
IPC 8 full level
B29C 48/29 (2019.01); B29C 48/76 (2019.01); C08J 3/20 (2006.01); C08J 3/22 (2006.01); B29C 48/08 (2019.01)
CPC (source: EP KR US)
B29C 48/29 (2019.01 - EP US); C08J 3/201 (2013.01 - EP US); C08J 3/22 (2013.01 - KR); C08J 3/226 (2013.01 - EP US); C09C 1/00 (2013.01 - KR); B29C 48/08 (2019.01 - EP US); B29C 48/288 (2019.01 - EP US); B29C 48/76 (2019.01 - EP US); B29K 2023/06 (2013.01 - EP US); B29K 2023/083 (2013.01 - EP US); B29K 2023/12 (2013.01 - EP US); B29K 2105/0005 (2013.01 - EP US); B29K 2105/0038 (2013.01 - EP US)
Citation (search report)
See references of WO 2005017003A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005017003 A1 20050224; CN 100366664 C 20080206; CN 1842560 A 20061004; DE 10335863 A1 20050303; EP 1654308 A1 20060510; JP 2007501299 A 20070125; KR 20060087502 A 20060802; US 2007182053 A1 20070809
DOCDB simple family (application)
EP 2004008420 W 20040728; CN 200480024688 A 20040728; DE 10335863 A 20030806; EP 04741294 A 20040728; JP 2006522287 A 20040728; KR 20067002440 A 20060203; US 56730804 A 20040728