Title:
PRODUCTION OF BROAD MOLECULAR WEIGHT POLYETHYLENE
Document Type and Number:
WIPO Patent Application WO2004076494
Kind Code:
A3
Abstract:
Broad molecular weight polyethylene and polyethylene having a bimodal molecular weight distribution can be produced with chromium oxide catalyst supported on silica having particular values of surface area and pore volume in conjunction with alkyl silanols, aluminium alkyls, and silyl chromate, optionally also with titanium alkoxides.
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Inventors:
CANN KEVIN J (US)
ZHANG MINGHUI (US)
MOORHOUSE JOHN H (US)
APECETCHE MARIA A (US)
ZHANG MINGHUI (US)
MOORHOUSE JOHN H (US)
APECETCHE MARIA A (US)
Application Number:
PCT/US2004/001706
Publication Date:
October 28, 2004
Filing Date:
January 23, 2004
Export Citation:
Assignee:
UNIVATION TECH LLC (US)
CANN KEVIN J (US)
ZHANG MINGHUI (US)
MOORHOUSE JOHN H (US)
APECETCHE MARIA A (US)
CANN KEVIN J (US)
ZHANG MINGHUI (US)
MOORHOUSE JOHN H (US)
APECETCHE MARIA A (US)
International Classes:
B01J21/08; B01J23/26; B01J31/12; C08F4/02; C08F4/24; C08F4/44; C08F4/60; C08F10/00; C08F10/02; C08F210/16; (IPC1-7): B01J31/00; B01J37/00; C08F4/02; C08F4/60; C08F4/24; C08F4/44; C08F210/00
Foreign References:
| US6107236A | 2000-08-22 |
Other References:
See also references of EP 1596984A4
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