Two step polyolefin catalyst deactivation

Details Two step polyolefin catalyst deactivation Two step polyolefin catalyst deactivation

1977-08-29

1979-05-22

Levin, Stanford M.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528485, C08F 600, C08F 608

Patent

active

041560752

ABSTRACT:
In a two step process for preparing polymeric material wherein said polymeric material is formed by polymerizing alpha-monoolefins in the presence of a halogen-containing polymerization catalyst that leaves corrosive halogen-containing catalyst residues in said polymeric material, the improvement which comprises contacting said polymeric material containing corrosive catalyst residues with steam, air and nitrogen at a temperature where the polymeric material is in a fluid or liquid state and thereafter treating said steam-air-nitrogen treated molten polymer with alumina. The polymeric material treated with the two step catalyst deactivation process had good color, low chlorides and low volatiles.

REFERENCES:
patent: 3001977 (1961-09-01), Wisseroth et al.
patent: 3066124 (1962-11-01), Telfer
patent: 3328373 (1967-06-01), Tazewell et al.
patent: 3600463 (1971-08-01), Hagemeyer et al.

Affiliated with

Also associated with

Rating

Two step polyolefin catalyst deactivation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Two step polyolefin catalyst deactivation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two step polyolefin catalyst deactivation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1041319