Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1993-04-07
1994-03-22
Garvin, Patrick P.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502120, 526138, C08F 4651
Patent
active
052964302
ABSTRACT:
A so-called Ziegler catalyst composed of a titanium halide-containing solid ingredient and an organoaluminum compound for the polymerization of olefins can be imparted with greatly improved storage stability by first subjecting the catalytic composition to a pre polymerization treatment and then to a contacting treatment with carbon dioxide and/or carbon monoxide. The catalytic activity is almost unchanged even after storage of the stabilized catalyst for 90 days or longer in nitrogen gas. The stabilized catalyst can also be used advantageously in a continuous-process polymerization of propylene by continuously introducing the monomer carrying the catalyst owing to absence of blocking of the pipe line with the polymer formed in-line.
REFERENCES:
patent: 4921920 (1990-05-01), Collomb-Ceccarini
Funabashi Hideo
Iwasaki Shigeo
Matsuo Yoichi
Garvin Patrick P.
Idemitsu Petrochemical Company Ltd.
LandOfFree
Method for the preparation of a stabilized catalyst for the poly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for the preparation of a stabilized catalyst for the poly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the preparation of a stabilized catalyst for the poly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-436787