Metathesis polymerization catalyst and method of polymerizing cy

Details Metathesis polymerization catalyst and method of polymerizing cy Metathesis polymerization catalyst and method of polymerizing cy

1990-06-01

1993-11-30

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 77, 526 88, 526 91, 526 93, 526113, 526120, 526154, 526281, 526283, 526308, 526902, 502111, 502117, 502225, 502226, 502227, 502228, 502230, 428403, C08F 426, C08F 3204, B32B 3300

Patent

active

052666654

ABSTRACT:
Cyclic olefin metathesis polymerization catalyst comprising metal compounds wherein said metals consist essentially of a minor amount of a transition metal which Will initiate ring-opening metathesis polymerization of a cyclic olefin and a major amount of at least one second metal which will propagate the polymerization, wherein said catalyst is essentially devoid of pyrophoric metal compounds, e.g. metal alkyls, and preformed metal carbenes. A preferred transition metal is ruthenium. Said second metal can comprise aluminum, copper, hafnium, iron (III), iridium, manganese, molybdenum, nickel, niobium, rhenium, rhodium, tantalum, titanium, tungsten, yttrium, a Lanthanide, zinc or zirconium or a mixture thereof. Using such catalyst cyclic olefin, e.g. norbornene derivatives, can be polymerized, e.g. in an extruder, even in the presence of water.

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Handbook of Chem. and Physics, Hodgman (ed.), Chemical Rubber Publishing Co., Cleveland, Ohio, pp. 1660-1661 (1955).
K. J. Ivin, "Olefin Metathesis" Academic Press, 1983.
H. T. Ho, et al. "Metathesis Polymerization of Substituted Norbornenes . . . " Eur. Polym. J. vol. 25, No. 7/8 pp. 805-811, 1989.
K. J. Ivin, et al. "Role of Dioxygen as an Activatior in Olefin Metathesis", J.C.S. Chem. Comm., pp. 1062-1064, 1981.
"Olefin Metathesis and Ring-Opening Polymerization of Cyclo-Olefins", V. Dragutan et al, John Wiley & Sons Limited, pp. 172, 175, 177.

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