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

1977-08-25

1978-08-08

Smith, Edward J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252431R, 526352, 526907, C08F 402, C08F 1002

Patent

active

041058461

ABSTRACT:
The particle size of as formed polyethylene or ethylene copolymer containing up to about fifteen percent of a C.sub.3 to C.sub.8 olefin, which is made using a promoted solid catalyst component prepared from a magnesium alkoxide, a titanium (IV) alkoxide and an alkylaluminum dichloride, is increased by adding the dichloride in at least two stages and allowing the preparation mixture to age between stages during the preparation of said catalyst component. The particle size of polymer can be increased substantially using the so treated catalyst component, compared to the particle size of polymer made using untreated catalyst component, when either catalyst component is employed together with an alkylaluminum compound promoter in a slurry or vapor phase process at moderate polymerization temperature and pressure.

REFERENCES:
patent: 3901863 (1975-08-01), Berger et al.

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-920324