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Title:
POLYETHYLENE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/1987/000184
Kind Code:
A1
Abstract:
A polyethylene composition having an excellent melt moldability, which substantially comprises an ultra-high-molecular polyethylene having a molecular weight of, for example, about 1,650,000 or more and a low-molecular to high-molecular polyethylene. This composition can be produced according to a multi-stage polymerization process involving the step of producing the ultra-high-molecular polyethylene and the step of producing the low-molecular to high-molecular polyethylene.

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Inventors:
SUGA MICHIHARU (JP)
ISHIKAWA HIDEO (JP)
AKANA YOSHINORI (JP)
YOSHITAKE JUNICHI (JP)
KONDOH MASAYUKI (JP)
Application Number:
PCT/JP1986/000325
Publication Date:
January 15, 1987
Filing Date:
June 26, 1986
Export Citation:
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Assignee:
MITSUI PETROCHEMICAL IND (JP)
International Classes:
C08F10/02; C08L23/00; (IPC1-7): C08F10/02
Foreign References:
JPS4730293B1
JPS57177036A1982-10-30
JPS4627064B1
JPS5841309B21983-09-10
JPS59126446A1984-07-21
JPS588712A1983-01-18
JPS588713A1983-01-18
JPS57141409A1982-09-01
JPS59120605A1984-07-12
JPS5910724B21984-03-10
Other References:
See also references of EP 0227838A4
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