Method for recovering atactic polypropylene

Details Method for recovering atactic polypropylene Method for recovering atactic polypropylene

1978-06-12

1980-01-15

Levin, Stanford M.

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

Synthetic resins

Treating polymer containing material or treating a solid...

526351, 528501, C08F 612

Patent

active

041840364

ABSTRACT:
A solution containing atactic polypropylene by-produced during the preparation of a propylene-containing polymer is passed through a tubular, elongated heating zone having a pressure difference of at least 3 kg/cm.sup.2 between its inlet and outlet so that the calculated flow velocity at the outlet is at least 40 m/sec, whereby sticky fine particles of molten atactic polypropylene substantially free of the solvent are formed in suspension in the vaporized solvent. Then, the sticky fine particles are separated from the vaporized solvent.

REFERENCES:
patent: 3285899 (1966-11-01), Houser et al.
patent: 3936512 (1976-02-01), Tabara et al.
patent: 3993713 (1976-11-01), Van Bredepode et al.

Affiliated with

Also associated with

Rating

Method for recovering atactic polypropylene 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 recovering atactic polypropylene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for recovering atactic polypropylene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1029001