Production of terminally functional polymer by cationic polymeri

Details Production of terminally functional polymer by cationic polymeri Production of terminally functional polymer by cationic polymeri

1988-07-26

1990-03-13

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526135, 526219, 526221, 526227, 526230, 5262305, 526232, 5262323, 526237, 526347, 526339, 5263487, 526 88, 502160, C08F 414, C08F 434, C08F 1010

Patent

active

049084216

ABSTRACT:
A polymerization process is provided for producing a terminally functional polymer which comprises introducing a monomer charge, a Lewis acid and an organic peroxy compound into a suitable reaction vessel and polymerizing the monomer charge at a temperature of from about 0.degree. to about -80.degree. C. to form the terminally functional polymer, wherein the monomer charge comprises isobutylene and the organic peroxy compound is charge in an amount of from about 10.sup.-4 to about 10.sup.-1 moles per mole of the isobutylene. In a preferred embodiment, the monomer charge additionally comprises vinylidene aromatic or diolefin monomers. The invention also provides a novel catalyst system comprising an organic peroxy compound and a Lewis acid for the polymerization of isobutylene or monomer mixtures containing isobutylene.

REFERENCES:
patent: 3629215 (1971-12-01), Nakaguchi et al.
patent: 3959225 (1976-05-01), Kuntz
patent: 4276394 (1981-06-01), Kennedy et al.
patent: 4316973 (1982-02-01), Kennedy
patent: 4342849 (1982-08-01), Kennedy
patent: 4524188 (1985-06-01), Kennedy et al.

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