CA2171103A1 - Gas phase polymerization of olefins - Google Patents
Gas phase polymerization of olefinsInfo
- Publication number
- CA2171103A1 CA2171103A1 CA002171103A CA2171103A CA2171103A1 CA 2171103 A1 CA2171103 A1 CA 2171103A1 CA 002171103 A CA002171103 A CA 002171103A CA 2171103 A CA2171103 A CA 2171103A CA 2171103 A1 CA2171103 A1 CA 2171103A1
- Authority
- CA
- Canada
- Prior art keywords
- gas phase
- polymers
- reactor
- olefins
- constrained geometry
- 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.)
- Granted
Links
Landscapes
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
Novel gas phase fluidized bed process for producing ethylene polymers having improved processability. Multiple reactors in series or parallel may be used to produce in-situ blended polymers. Each reactor can separately have a constrained geometry catalyst or a conventional Ziegler-Natta catalyst as needed for obtaining in-situ blended polymer with the desired properties as long as there is a constrained geometry catalyst in at least one reactor. Olefin polymers can be produced according to this invention having low susceptibility to melt fracture, even under high shear stress conditions.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12285293A | 1993-09-17 | 1993-09-17 | |
US08/122,852 | 1993-09-17 | ||
PCT/US1994/010621 WO1995007942A1 (en) | 1993-09-17 | 1994-09-16 | Gas phase polymerization of olefins |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2171103A1 true CA2171103A1 (en) | 1995-03-23 |
CA2171103C CA2171103C (en) | 2006-02-21 |
Family
ID=35904130
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002171103A Expired - Fee Related CA2171103C (en) | 1993-09-17 | 1994-09-16 | Gas phase polymerization of olefins |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2171103C (en) |
-
1994
- 1994-09-16 CA CA002171103A patent/CA2171103C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2171103C (en) | 2006-02-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |