Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1983-10-27
1985-10-15
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...
502103, 502107, C08F 464
Patent
active
045474737
ABSTRACT:
A solution process for the preparation of high molecular weight homopolymers of ethylene and copolymers of ethylene and C.sub.3 -C.sub.12 .alpha.-olefins is disclosed. The process involves feeding monomer, a particular coordination catalyst and hydrocarbon solvent to a reactor, polymerizing the monomer at a temperature of 105.degree.-320.degree. C. and recovering the polymer. The catalyst is obtained by combining solutions of titanium tetrahalide and of organoaluminum compound at a temperature of less than 30.degree. C., heating the resulting admixture to a temperature of 150.degree.-300.degree. C. for a period of 10 seconds to 10 minutes and combining the thus heat-treated mixture with a solution of an organoaluminum compound. The catalyst thus obtained is fed to the process, without separation of any components of the catalyst. In an embodiment part of the titanium tetrahalide may be replaced with vanadium oxytrihalide.
REFERENCES:
patent: 2971925 (1961-02-01), Winkler et al.
patent: 3032511 (1962-05-01), Langer et al.
patent: 3063798 (1962-11-01), Langer et al.
patent: 3068216 (1962-12-01), de Vries
patent: 3558271 (1971-01-01), Calcagno
patent: 3640987 (1972-02-01), Phung et al.
patent: 3723350 (1973-03-01), Schmitt et al.
patent: 4077903 (1978-03-01), Wristers
Hamilton Michael A.
Zboril Vaclay G.
Du Pont Canada Inc.
Garvin Patrick P.
LandOfFree
Process for the preparation of polymers of alpha-olefins at high does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the preparation of polymers of alpha-olefins at high, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of polymers of alpha-olefins at high will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2431699