High molecular weight soluble polymers starting from polycyclic

Details High molecular weight soluble polymers starting from polycyclic High molecular weight soluble polymers starting from polycyclic

1975-06-26

1977-06-14

Hamrock, William F.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 90, 526185, 526237, C08F 1232

Patent

active

040298710

ABSTRACT:
A class of soluble polymers of high molecular weight is disclosed whose members are: copolymers of polycyclic polyenes containing two conjugated double bonds which are members of the group consisting of a) polycyclic polyenes having an endomethylenic system orthocondensed with another hydrocarbon ring wherein the two common carbon atoms form a part of a conjugated diene system whose double bonds are located inside the non-endomethylenic ring, b) polyenes presenting an alkylidene group conjugated with a double bond of a ring which forms a part of an endocyclic system, and c) orthocondensed polycyclic polyenes substituted with an alkylidene type ring whose double bond is conjugated with a double bond of one of the cycles; and homopolymers of at least one of said polycyclic polyenes with at least one other conjugated diene. They may be prepared by reacting the selected monomers in the presence of a cationic catalyst selected from the halides of metals of the second to eighth groups of the periodic system and the alkyl derivatives thereof, which may be complexed with water, alcohols, acids, ethers or alkylhalides.

REFERENCES:
patent: 3066123 (1962-11-01), Strohmayer et al.
patent: 3299170 (1967-01-01), Gonzenbach
patent: 3387046 (1968-01-01), Cleary

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