Process for the polymerization of cycloolefins

Details Process for the polymerization of cycloolefins Process for the polymerization of cycloolefins

1977-09-07

1979-01-30

Smith, Edward J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252429B, 526142, 526308, C08F 478, C08F 3204

Patent

active

041373901

ABSTRACT:
There is disclosed a cycloolefin metathesis process comprising polymerizing (1) an unsaturated alicyclic compound containing 5 carbons and one double bond in the ring and (2) polycyclic non-conjugated diolefins by the use of a catalyst system comprising (a) tungsten halides and oxyhalides, (b) at least one compound such as alkylaluminum sesquihalides, dialkylaluminum halides, alkylaluminum diahlides or trialkylaluminums, (c) an alcohol, and (d) pentachlorophenol or pentabromophenol.

REFERENCES:
patent: 3631010 (1971-12-01), Witte et al.
patent: 3855361 (1974-12-01), Maertens et al.
patent: 3935179 (1976-01-01), Ofstead
patent: 4038471 (1977-07-01), Castner

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