JPS54141893A - Preparation of ethylene polymer - Google Patents
Preparation of ethylene polymerInfo
- Publication number
- JPS54141893A JPS54141893A JP4909778A JP4909778A JPS54141893A JP S54141893 A JPS54141893 A JP S54141893A JP 4909778 A JP4909778 A JP 4909778A JP 4909778 A JP4909778 A JP 4909778A JP S54141893 A JPS54141893 A JP S54141893A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- reaction product
- calcining
- compound
- solid component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To prepare the title polymer suitable for blow molding, etc., and having excellent whiteness and heat stability, without de-ashing process, by the use of a highly active polymerization catalyst comprising a solid component obtained by calcining a reaction product of a specific Cr compound and a Ti compound.
CONSTITUTION: Ethylene is polymerized in the presence of a catalyst comprising (A) a solid component obtained by calcining a reaction product of dialkyl chromate with titanium tetraalcoholate supported on an inorganic oxide carrier such as silica, etc., and (B) a reaction product of hydrocarbyl polysiloxane with trialkylaluminum or alkylaluminum halide.
EFFECT: As the catalyst has high activity, the amount of the catalyst can be reduced and the de-ashing process can be eliminated.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4909778A JPS54141893A (en) | 1978-04-25 | 1978-04-25 | Preparation of ethylene polymer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4909778A JPS54141893A (en) | 1978-04-25 | 1978-04-25 | Preparation of ethylene polymer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54141893A true JPS54141893A (en) | 1979-11-05 |
Family
ID=12821585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4909778A Pending JPS54141893A (en) | 1978-04-25 | 1978-04-25 | Preparation of ethylene polymer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54141893A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7803736B2 (en) | 2002-12-10 | 2010-09-28 | Basell Polyolefine Gmbh | Supported chromium catalyst and its use for preparing homopolymers and copolymers of ethylene |
-
1978
- 1978-04-25 JP JP4909778A patent/JPS54141893A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7803736B2 (en) | 2002-12-10 | 2010-09-28 | Basell Polyolefine Gmbh | Supported chromium catalyst and its use for preparing homopolymers and copolymers of ethylene |
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