Increasing the particle size of as formed polyethylene or ethyle

Details Increasing the particle size of as formed polyethylene or ethyle Increasing the particle size of as formed polyethylene or ethyle

1975-11-14

1977-08-02

Garvin, Patrick P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

526187, C08F 466, C08F 468

Patent

active

040394727

ABSTRACT:
The particle size of as formed polyethylene or ethylene copolymer containing up to about twenty percent of a C.sub.3 to C.sub.8 olefin can be increased by using a high yield, solid catalyst component prepared from (1) a magnesium alkoxide, (2) a titanium (IV) or vanadium (V) chloride, chloroalkoxide or alkoxide, (3) an alkylaluminum compound, and (4) hydrogen chloride. The particle size of as formed polymer can be increased substantially using the hydrogen-chloride-prepared catalyst component, compared to the particle size of polymer made using a similar catalyst component prepared without the use of hydrogen chloride, when either is employed with an alkylaluminum compound promoter in a slurry or vapor phase polymerization process at moderate polymerization temperatures and pressures.

REFERENCES:
patent: 3392159 (1968-07-01), Schooley et al.
patent: 3489729 (1970-01-01), Kahle et al.
patent: 3644318 (1972-02-01), Diedrich et al.
patent: 3658722 (1972-04-01), Delboville et al.
patent: 3951935 (1976-04-01), Engelmann

Affiliated with

Also associated with

Rating

Increasing the particle size of as formed polyethylene or ethyle does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Increasing the particle size of as formed polyethylene or ethyle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Increasing the particle size of as formed polyethylene or ethyle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2297563