Title:
PROCESS FOR MANUFACTURING A DENSIFIED POLYMER POWDER, AND PROCESS OF MELT PROCESSING A DENSIFIED POLYMER POWDER
Document Type and Number:
WIPO Patent Application WO/2016/071817
Kind Code:
A3
Abstract:
Process for manufacturing a densified polymer powder comprising compressing a polymer feed that has a bulk density of less than or equal to 240 kg/m in a roll compactor comprising at least two compaction rolls to obtain a densified polymer material, wherein a gap between the two rolls is 0.5 to 10 mm, wherein the compaction rolls operate at a speed of 3 to 30 rpm, wherein an applied pressure of the roll compactor is 0.5 to 5 MPa, and milling the densified polymer material to obtain a densified polymer powder, wherein a bulk density of the densified polymer powder is greater than or equal to 250 kg/m3.
Inventors:
HOLLAR JR WILLIAM E (US)
GALLUCCI ROBERT RUSSELL (US)
EHRENSBECK FRANKLIN (US)
LOEHR TODD M (US)
SUBRAMANIAN SHANKAR KOLLENGODU (US)
HEIN CHRISTOPHER LUKE (US)
JIANG QIYING (US)
GALLUCCI ROBERT RUSSELL (US)
EHRENSBECK FRANKLIN (US)
LOEHR TODD M (US)
SUBRAMANIAN SHANKAR KOLLENGODU (US)
HEIN CHRISTOPHER LUKE (US)
JIANG QIYING (US)
Application Number:
PCT/IB2015/058424
Publication Date:
June 30, 2016
Filing Date:
October 30, 2015
Export Citation:
Assignee:
SABIC GLOBAL TECHNOLOGIES BV (NL)
International Classes:
B29B9/08; B29B9/16; B29B9/12
Domestic Patent References:
| WO2014095676A1 | 2014-06-26 |
Foreign References:
| US20080033132A1 | 2008-02-07 | |||
| US4248819A | 1981-02-03 | |||
| US5593619A | 1997-01-14 | |||
| JP2004114431A | 2004-04-15 |
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