Process for producing polyisobutenes

Details Process for producing polyisobutenes Process for producing polyisobutenes

1981-10-20

1983-04-12

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526188, 5263487, C08F 464, C08F 1010

Patent

active

043798993

ABSTRACT:
High molecular weight polybutenes having a viscosity SSU above 1,000,000 at 210.degree. F. are produced by using a three-component catalyst system containing an alkyl aluminium halide, tertiary butyl halide and a metal halide selected from SnCl.sub.4, SnBr.sub.4, TiCl.sub.4, and TiBr.sub.4. The reaction phase is homogeneous and the catalyst components are added as a solution in an inert solvent. The polyisobutene product so produced are useful additives for oil, adhesives and mastics.

REFERENCES:
patent: 3058963 (1962-10-01), Vandenberg
patent: 3066123 (1962-11-01), Strohmayer et al.
patent: 3432513 (1969-03-01), Miller et al.
patent: 3560458 (1971-02-01), Kennedy et al.
patent: 3957743 (1976-05-01), Nalta et al.

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