发明公开
EP0574153A1 Process for preparing ultra-high molecular weight polyethylene
失效
维生素Zur Herstellung von ultrahochmolekularem聚乙烯。
- 专利标题: Process for preparing ultra-high molecular weight polyethylene
- 专利标题(中): 维生素Zur Herstellung von ultrahochmolekularem聚乙烯。
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申请号: EP93303974.5申请日: 1993-05-21
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公开(公告)号: EP0574153A1公开(公告)日: 1993-12-15
- 发明人: Shiraishi, Takeichi , Okamoto, Mitsuo , Matsuura, Kazuo
- 申请人: NIPPON OIL Co. Ltd.
- 申请人地址: 3-12, Nishi-Shimbashi 1-chome Minato-ku Tokyo JP
- 专利权人: NIPPON OIL Co. Ltd.
- 当前专利权人: NIPPON OIL Co. Ltd.
- 当前专利权人地址: 3-12, Nishi-Shimbashi 1-chome Minato-ku Tokyo JP
- 代理机构: Smaggasgale, Gillian Helen
- 优先权: JP171431/92 19920521
- 主分类号: C08F10/02
- IPC分类号: C08F10/02 ; C08F4/655
摘要:
According to the present invention there is provided a process for preparing an ultra-high molecular weight polyethylene superior in fluidity, having a high bulk density, a small average particle diameter and a narrow particle size distribution and substantially free from formation of coarse particles.
In a process for preparing an ultra-high molecular weight polyethylene, using a catalyst comprising a solid catalyst component and an organometallic compound, there is used as the said solid catalyst component a material obtained by contacting the following components [A] and [B] with each other:
[A] a reaction product resulting from the reaction of a magnesium halide and a compound of the general formula Ti(OR¹ )₄ where R¹ is a hydrocarbon residue having 1 to 20 carbon atoms; and
[B] a reaction product resulting from the reaction of an aluminum halide and a compound of the general formula R²OR³ where R² and R³, which may be the same or different, are each a hydrocarbon group having 1 to 20 carbon atoms.
In a process for preparing an ultra-high molecular weight polyethylene, using a catalyst comprising a solid catalyst component and an organometallic compound, there is used as the said solid catalyst component a material obtained by contacting the following components [A] and [B] with each other:
[A] a reaction product resulting from the reaction of a magnesium halide and a compound of the general formula Ti(OR¹ )₄ where R¹ is a hydrocarbon residue having 1 to 20 carbon atoms; and
[B] a reaction product resulting from the reaction of an aluminum halide and a compound of the general formula R²OR³ where R² and R³, which may be the same or different, are each a hydrocarbon group having 1 to 20 carbon atoms.
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