Bulk polymerization of cycloolefins

Details Bulk polymerization of cycloolefins Bulk polymerization of cycloolefins

1982-06-14

1984-01-17

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526281, C08F 406

Patent

active

044265026

ABSTRACT:
A process for bulk polymerizing a norbornene-type monomer, or a mixture thereof, that includes the steps of mixing the monomer with an organoammonium molybdate or tungstate catalyst and an alkoxyalkyl aluminum halide cocatalyst at a temperature at which polymerization of the monomer remains essentially dormant for at least one hour, and conveying the resulting mixture to a mold maintained at a temperature at which polymerization of the monomer takes place in less than about 2 minutes.

REFERENCES:
patent: 3432445 (1969-03-01), Minchak et al.
patent: 3790544 (1974-02-01), Maertens et al.
patent: 4069376 (1978-01-01), Minchak
patent: 4239874 (1980-12-01), Ofstead et al.

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