← Back to Patent Explorer
JPS56115302A Expired / Lapsed JP ⏱️ 0.0 years remaining

Preparation of olefin polymer

Assignee: Sumitomo Chemical Co Ltd
•
Filing: 1980-02-15
•
Granted: —
•
Expires: 2000-02-15
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract PURPOSE: To prepare a solid catalyst component having high activity and sharp particle size distribution, and excellent characteristics as slurry, and capable of freely controlling the molecular weight distribution of the produced polyolefin, by reacting a Ti compound with an organic Mg compound, and further reacting the reaction product with TiCl 4 . CONSTITUTION: A Ti compound of formula (R 1 is 1W20C hydrocarbon group; X is halogen; 0≤n≤4) is made to react with an organic Mg compound, and the reaction product is further reacted with TiCl 4 . When an olefin is (co)polymerized using a catalyst system comprizing the solid catalyst component obtained above and an organic Al compound, the produced polyolefin has broad molecular weight distribution and high melt fluidity, and is suitable for blow molding and film forming. COPYRIGHT: (C)1981,JPO&Japio

Inventors

  • 👤 Yasuji Yamada
  • 👤 Seiji Kawai

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-02 11:40
CPC Classifications
—

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag