PRODUCTION OF POLYPROPYLENE

Title:

PRODUCTION OF POLYPROPYLENE

Document Type and Number:

Japanese Patent JPH02123110

Kind Code:

A

Abstract:

PURPOSE:To obtain the subject polymer excellent in transparency and crystallinity and suitable for a film by using a catalyst prepared by combining a Ti-containing solid component containing a specified amount of a crystalline dialkyldiallylsilane polymer, etc., with an organoaluminum compound and an electron donor. CONSTITUTION:Propylene or propylene and another alpha-olefin are polymerized in the presence of a catalyst obtained by combining (A) a titanium-containing solid component containing a crystalline dialkyldiallylsilane polymer and/or crystalline trialkylsilylstyrene polymer in an amount of 0.01-50wt.% prepared by polymerization of a dialkyldiallylsliane and/or trialkylsilylstyrene using a Zieglar-Natta catalyst with (B) an organoaluminum compound and (C) an electron donor as necessary, thus obtaining the objective polymer.

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Inventors:

SAITO JUN
SANPEI AKIHIKO
SHIRAISHI TAKESHI
CHIBA HIROMASA

Application Number:

JP27652288A

Publication Date:

May 10, 1990

Filing Date:

November 01, 1988

Export Citation:

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Assignee:

CHISSO CORP

International Classes:

C08F4/642; C08F4/60; C08F10/06; (IPC1-7): C08F4/642; C08F10/06

Attorney, Agent or Firm:

Yataro Sasai (1 person outside)

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