Process for the production of polyisoolefins by means of novel m

Details Process for the production of polyisoolefins by means of novel m Process for the production of polyisoolefins by means of novel m

1997-01-27

1997-12-30

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526183, 5263487, 502152, C08F 452, C08F 1010

Patent

active

057031827

ABSTRACT:
Polyisoolefins are produced using the process according to the invention by polymerising isoolefins, optionally with conjugated or unconjugated dienes and/or cationically polymerisable, mono- or polyunsaturated compounds in solution, in suspension or in the gas phase at temperatures of -100.degree. C. to +200.degree. C. and pressures of 0.1 to 100 bar in the presence of an initiator system consisting of aluminium-cyclopentadienyl compounds and boron compounds.

REFERENCES:
patent: 3009972 (1961-11-01), Johnson
patent: 3376331 (1968-04-01), Kroll
patent: 4210737 (1980-07-01), Kennedy et al.
patent: 5448001 (1995-09-01), Baird
patent: 5506316 (1996-04-01), Shaffer
E. Fisher, "Synthesis and Structural Characterization of . . . Compound, Organometallics", 1994, pp. 3324-3329.
Fisher et al., "Synthesis and Structural Characterization of . . . aluminum Alkyl Compounds", 1994, vol. 13.

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