Process for the production of polyisoolefins

Details Process for the production of polyisoolefins Process for the production of polyisoolefins

1995-07-27

1996-08-06

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 74, 526 89, 526135, 526138, 526185, 526189, 526221, 526237, 526339, 5263487, 526941, C08F 414, C08F 416, C08F 1010

Patent

active

055434797

ABSTRACT:
Polyisoolefins are produced according to the invention by polymerizing isoolefins having 4 to 16 carbon atoms, optionally with conjugated diolefins having 4 to 6 carbon atoms and/or cationically polymerizable, mono- or polyunsaturated, organic compounds having 4 to 16 carbon atoms in the presence of mixtures of carbon dioxide and linear, branched and/or cyclic C.sub.4 -C.sub.8 alkanes and in the presence of catalysts at temperatures of -70.degree. C. to +20.degree. C. and pressures of 1 to 70 bar, wherein the weight ratio of carbon dioxide to alkanes is 10:90 to 90:10.
The process according to the invention largely prevents the formation of fouling on the reactor walls, so ensuring better removal of heat. Moreover, in accordance with the process according to the invention, the polyisoolefins obtained may be directly chemically modified once the carbon dioxide has been removed.

REFERENCES:
patent: 2456354 (1948-12-01), Young
patent: 3522228 (1970-07-01), Fukui et al.
patent: 5376744 (1994-12-01), Kennedy et al.
Orbit Abstract of EP 0 025 530 (Mar. 25, 1981).

Affiliated with

Also associated with

Rating

Process for the production of polyisoolefins 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 production of polyisoolefins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of polyisoolefins will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2191759