Carrier for olefin polymerization catalysts
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 1, 2000
Grant Date -
N/A
app pub date -
Feb 13, 1998
filing date -
Feb 17, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Procedure for the preparation of a solid carrier for olefin polymerization catalysts, comprising the steps: a) impregnating a silica with a solution of Mg-chloride in the presence of electron donors, b) drying the impregnated silica obtained in (a) and impregnating it with a solution of Mg-alkyls in SiCl.sub.4 at a temperature from -10 to 20.degree. C., optionally adding a further amount of electron donors, c) subsequently treating the slurry obtained in (b) at a temperature from 40.degree. C. to reflux temperature, d) drying the carrier obtained in (c).
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully