Dicyclopentadiene thermoset polymer

Details Dicyclopentadiene thermoset polymer Dicyclopentadiene thermoset polymer

1983-05-25

1985-03-26

Michl, Paul R.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C08F13208

Patent

active

045074534

ABSTRACT:
A high impact strength, high modulus thermoset homopolymer is formed by the metathesis-catalyzed polymerization of dicyclopentadiene. In a preferred embodiment of the synthesis, two parts of a metathesis-catalyst system, a catalyst/monomer solution and an activator/monomer solution, are combined in the mixing head of a reaction injection molding machine and then injected into a mold. The reaction mixture sets up into a tough, rigid, thermoset polymer with high modulus and excellent impact strength.

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Die Makromolckulare Chemie; G. Dall'Asta, G. Motroni, R. Manetti, and C. Tost; "Homopolymerization of Dicyclopentadiene Induced by Ziegler-Natta Catalysts and by Other Transition Metal Systems"; 1969; vol. 130; pp. 153-165.
Bulletin of Chemical Society of Japan; vol. 41; Takao Oshika and Hiroyoshi Tabuchi; "Ring-Opening Polymerization of Norbornene and Its Derivatives by MoCl.sub.5, WCl.sub.6 and ReCl.sub.5 Catalyst"; 1968; pp. 211-217.
CA 69: 97246v (1968).

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