Hydrocarbon-soluble copolymers of bicycloheptenes and 1,3-butadi

Details Hydrocarbon-soluble copolymers of bicycloheptenes and 1,3-butadi Hydrocarbon-soluble copolymers of bicycloheptenes and 1,3-butadi

1977-12-05

1981-04-14

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526137, 526138, 526142, 526153, 526169, 526281, 526283, C08F23208, C08F23204, C08F 422, C08F23606

Patent

active

042621038

ABSTRACT:
A method for preparing copolymers of a bicycloheptene and 1,3-butadiene is described. The method comprises polymerizing said monomers in a hydrocarbon solvent in the presence of a catalyst mixture comprising:

REFERENCES:
patent: 3549607 (1970-12-01), Natta et al.
patent: 3598796 (1971-08-01), Nutzel et al.
patent: 3859265 (1975-01-01), Hepworth
patent: 3883495 (1975-05-01), Maertens et al.
patent: 3974092 (1976-08-01), Streck et al.
patent: 4039491 (1977-08-01), Ikeda et al.
patent: 4176220 (1979-11-01), Ikeda et al.
Translation (105686/73) Ikeda et al., (56496/75), Nippon Synthetic Rubber, May 17, 1975, "Process of Adj. Mol. Wt. of Norbornene Derivatives".
Chem. Abs. 115459p, "Polymers Crosslinked Through Cyclopentadiene Rings", Takeshita et al., vol. 77, 1972.
Chem. Abs. 148046d, "Molecular Weight Control of Polymers of Norbornene Deriv.", Ikeda et al., vol. 83, 1975.

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