Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR CONTINUOUSLY PRODUCING ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE BY USING SLURRY POLYMERIZATION
Document Type and Number:
WIPO Patent Application WO/2022/161400
Kind Code:
A1
Abstract:
The present invention relates to a method for continuously producing ultra-high molecular weight polyethylene by using ethylene slurry polymerization. An ultra-high molecular weight polyethylene having a viscosity average molecular weight of 1.5 to 8 million g/mol can be continuously produced under conditions of ethylene slurry polymerization in an atmosphere without hydrogen by using a series mode of 2-6 ethylene slurry polymerization reaction kettles, controlling the deviations of the polymerization temperature, polymerization pressure and gas phase composition between said kettles within certain ranges, and performing continuous slurry polymerization of raw materials comprising ethylene and optionally a comonomer. The polymerization method is flexible, and has a large control margin, and the polymer has stable properties. Furthermore, the obtained ultra-high molecular weight polyethylene has a low metal content, a low ash content, and excellent mechanical properties.

More Like This:
WO/2022/173784SYSTEMS AND METHODS FOR MITIGATING POLYMER FOULING
JP5448004Polymer particle manufacturing equipment and manufacturing method
WO/2016/020482PROCESS FOR ETHYLENE POLYMERIZATION WITH IMPROVED ETHYLENE FEED SYSTEM
Inventors:
LI CHUANFENG (CN)
WANG WENRUI (CN)
JING KUN (CN)
CHEN MINGHUA (CN)
XING YUEJUN (CN)
XIA HUIMIN (CN)
GUO FENG (CN)
YOU ZHONGLIN (CN)
CHEN SHAOHUI (CN)
ZHAI JIANHONG (CN)
YANG LIU (CN)
TU SONGTAO (CN)
Application Number:
PCT/CN2022/074012
Publication Date:
August 04, 2022
Filing Date:
January 26, 2022
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
CHINA PETROLEUM & CHEM CORP (CN)
SINOPEC YANGZI PETROCHEMICAL CO LTD (CN)
International Classes:
C08F2/01; C08F210/16
Foreign References:
US20090163679A12009-06-25
CN105504124A2016-04-20
US20190225714A12019-07-25
JPS6225109A1987-02-03
CN105658683A2016-06-08
CN201510078777A2015-02-13
CN201610892424A2016-10-13
CN201610892732A2016-10-13
CN201610892836A2016-10-13
CN201610892837A2016-10-13
CN1781956A2006-06-07
CN1781953A2006-06-07
CN1405224A2003-03-26
CN103342842A2013-10-09
CN200310106156A2003-10-29
CN200310106157A2003-10-29
CN200410066068A2004-12-17
CN200510119401A2005-11-10
CN200610107651A2006-07-28
CN200710162677A2007-10-16
CN200710162667A2007-10-16
CN200710162672A2007-10-16
CN200710162675A2007-10-16
CN200710162676A2007-10-16
CN200710162666A2007-10-16
CN200910180100A2009-10-26
CN200910180607A2009-10-26
CN200910180601A2009-10-26
CN200910180606A2009-10-26
CN200910180602A2009-10-26
CN200910180605A2009-10-26
CN200910180603A2009-10-26
CN200910180604A2009-10-26
CN200910210988A2009-11-13
CN200910210984A2009-11-13
CN200910210989A2009-11-13
CN200910210986A2009-11-13
CN200910210985A2009-11-13
CN200910210990A2009-11-13
CN200910210987A2009-11-13
CN200910210991A2009-11-13
CN201010286008A2010-09-16
CN201010286012A2010-09-16
CN201010284870A2010-09-16
CN201010285982A2010-09-16
CN201010284856A2010-09-16
CN201010285970A2010-09-16
CN201010285956A2010-09-16
CN201010285969A2010-09-16
CN201010285958A2010-09-16
CN201010285967A2010-09-16
CN201010285994A2010-09-16
CN201110259336A2011-08-31
CN201110259219A2011-08-31
CN201110259330A2011-08-31
CN201110259327A2011-08-31
CN201110259367A2011-08-31
CN201110259289A2011-08-31
CN201110259359A2011-08-31
CN201110259282A2011-08-31
CN201110259318A2011-08-31
CN201110259258A2011-08-31
CN201110259300A2011-08-31
CN201110259254A2011-08-31
CN200110259299A
CN201110259245A2011-08-31
CN201110259296A2011-08-31
CN201110259338A2011-08-31
CN201110259370A2011-08-31
CN201110259339A2011-08-31
CN201110259293A2011-08-31
CN201110259356A2011-08-31
CN201210063756A2012-03-06
CN201210063777A2012-03-06
CN201210063788A2012-03-06
CN201210063818A2012-03-06
CN201210063824A2012-03-06
CN201210063843A2012-03-06
CN201210063854A2012-03-06
CN201210063876A2012-03-06
CN201210063878A2012-03-06
CN201210063891A2012-03-06
CN201210063894A2012-03-06
CN201210063907A2012-03-06
CN201210063909A2012-03-06
CN201210063935A2012-03-06
CN201210063941A2012-03-06
CN201210063945A2012-03-06
CN201310189677A2013-05-21
CN201310227368A2013-06-08
CN201310227370A2013-06-08
CN201310227830A2013-06-08
CN201310227393A2013-06-08
CN201310452714A2013-09-27
CN201710814678A2017-09-11
CN201710814595A2017-09-11
CN201710814594A2017-09-11
CN201710814593A2017-09-11
CN201710814592A2017-09-11
CN201710814591A2017-09-11
CN201811144599A2018-09-28
CN201811144768A2018-09-28
CN201811139936A2018-09-28
CN201811140811A2018-09-28
CN201811139946A2018-09-28
CN201811139741A2018-09-28
CN201310091208A2013-03-21
CN201110247347A2011-08-25
CN201110080343A2011-03-31
CN201010518904A2010-10-19
CN201010519660A2010-10-19
CN201210289014A2012-08-14
CN200910078596A2009-02-27
CN201310090758A2013-03-21
CN201310090736A2013-03-21
CN201310521768A2013-10-29
CN201410589467A2014-10-28
CN201410590067A2014-10-28
CN201610835700A2016-09-20
CN201610944191A2016-11-02
CN201710959423A2017-10-16
CN201110247349A2011-08-25
CN201110080294A2011-03-31
CN201110080395A2011-03-31
CN201210289017A2012-08-14
CN201210289031A2012-08-14
CN201310091192A2013-03-21
CN201310540973A2013-11-05
CN201510724626A2015-10-29
CN200410086283A2004-10-29
CN200610137777A2006-10-31
CN201610944182A2016-11-02
CN201710312720A2017-05-05
CN201110080422A2011-03-31
CN201110080394A2011-03-31
CN201010519406A2010-10-19
CN201010519715A2010-10-19
CN201010519174A2010-10-19
CN201010519429A2010-10-19
CN201210289004A2012-08-14
CN201310090847A2013-03-21
CN201310091209A2013-03-21
CN201310540975A2013-11-05
CN201410554709A2014-10-17
CN201410513506A2014-09-29
CN00130388A2000-11-03
CN200710176589A2007-10-31
CN201610944083A2016-10-26
CN201110246705A2011-08-25
CN201110247085A2011-08-25
CN201110291489A2011-09-30
CN201010521674A2010-10-21
CN201310090752A2013-03-21
CN201310090848A2013-03-21
CN201310090848A2013-03-21
CN201510624502A2015-09-25
CN201710166709A2017-03-20
CN201710031225A2017-01-17
CN201110246710A2011-08-25
CN201110080374A2011-03-31
CN201010519797A2010-10-19
CN201210289012A2012-08-14
CN201210418645A2012-10-26
CN201310090998A2013-03-21
CN201410252254A2014-06-09
CN201610393399A2016-06-06
CN201610956141A2016-10-26
CN201710958837A2017-10-16
CN201010522112A2010-10-25
CN201010240355A2010-07-30
CN201010502803A2010-09-29
CN201010511310A2010-10-19
CN200710121105A2007-08-30
CN201010502778A2010-09-29
CN201010502717A2010-09-29
CN201010240379A2010-07-30
CN201110148492A2011-06-03
CN201110148493A2011-06-03
CN201110148527A2011-06-03
CN201110148545A2011-06-03
CN201110306102A2011-10-11
CN201010240378A2010-07-30
CN200410086382A2004-10-27
CN98101108A1998-03-17
CN200410078280A2004-09-23
CN200910088546A2009-07-09
CN201010240378A2010-07-30
Other References:
YU ZHENGYI: "Reducing Ash Content of Unipol Polyethylene in Condensate Mode of Operation", PETROCHEMICAL TECHNOLOGY, SINOPEC - CHINA PETRO-CHEMICAL CORPORATION, CN, vol. 34, no. 3, 20 March 2005 (2005-03-20), CN , pages 269 - 272, XP055954171, ISSN: 1000-8144
GAO YU: "Study on Structure and Properties of UHMWPE Prepared by Eccentric Rotor Extruder", ELECTRONIC JOURNAL OF SOUTH CHINA UNIVERSITY OF TECHNOLOGY (MASTER'S THESES), 15 January 2020 (2020-01-15), XP055954174
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE AND PREPARATION METHOD THEREFOR

Next Patent: SCREEN-PROJECTION DATA PROCESSING METHOD AND DISPLAY DEVICE