Method of making cellular crosslinked poly(dicyclopentadiene)

Details Method of making cellular crosslinked poly(dicyclopentadiene) Method of making cellular crosslinked poly(dicyclopentadiene)

1983-11-17

1984-07-03

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

525289, 525211, 526 77, 526142, 526169, 526283, 521140, 521149, 521150, 521139, C08J 914, C08F 478

Patent

active

044580371

ABSTRACT:
Disclosed is an improved method of making a cellular crosslinked polymer with a metathesis-catalyst system where a metathesis-catalyst is activated with an alkylaluminum iodide compound.
In a preferred embodiment, two parts of the metathesis-catalyst system form the basis for two solutions, a catalyst/monomer solution and an alkylaluminum iodide activator/monomer solution. At least one solution also contains a blowing agent. The solutions are combined in one place, such as the mixing head of a reaction injection molding machine, and then injected into another place, such as a mold, where the monomer reacts to form a cellular crosslinked polymer.

REFERENCES:
patent: 4002815 (1977-01-01), Minchak
patent: 4029840 (1977-06-01), Shikinami et al.
patent: 4400340 (1983-08-01), Klosiewicz

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