US 5,491,206 A · Polymerizable compositions containing olefin metathesis catalysts and cocatalysts, and methods of use therefor

Abstract

A polymerizable composition comprises at least one ring-strained non-conjugated cyclic olefin, a two-part transition metal-containing catalyst wherein said transition metal is selected from the group consisting of Periodic Groups 6 to 10, said catalyst being air and moisture stable and comprises a transition metal-containing catalyst, provided that the oxidation state of the transition metal is in the range of +3 to 0, and as cocatalyst an organosilane comprising at least one group selected from the group consisting of ##STR1## groups.

Claims24

Dependent claims

A polymerizable composition comprising

a) at least one ring-strained non-conjugated cyclic olefin
b) a one-part or two-part transition metal-containing catalyst which is air and moisture stable,
wherein
1) said one-part transition-metal-containing catalyst has the formula {Ir(RO.sub.2 CHC.dbd.CHCO.sub.2 R).sub.2 Cl}.sub.2 wherein each R independently is hydrogen or lower (C.sub.1 to C.sub.4) alkyl, provided that the oxidation state of the metal is in the range of +3 to 0, and that cocatalysts containing C-halogen bonds are not present;
2) said two-part catalyst comprises
(a) a transition metal-containing catalyst, provided that the oxidation state of the transition metal is in the range of +3 to 0,
(b) a cocatalyst selected from the group consisting of
(i) terminal or silyl alkynes,
(ii) organosilicon compounds comprising at least one of ##STR21## groups, and (iii) heteroatom-substituted linear, branched, or cyclic alkenes.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application

08/172,595Filed 21 Dec 1993 · division

Priority

20 Dec 1991

Granted

13 Feb 1996

Term ends

Not estimatedThe source records don’t support an estimate.

Classification4 codes

C08G 61/08
Prepared by ring-opening of carbocyclic compounds: of carbocyclic compounds containing one or more carbon-to-carbon double bonds in the ring
Y10S 526/943
Synthetic resins or natural rubbers -- part of the class 520 series: polymerization with metallocene catalysts
C08G
Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds
Y10S
Technical subjects covered by former uspc cross-reference art collections [xracs] and digests

Polymerizable compositions containing olefin metathesis catalysts and cocatalysts, and methods of use therefor

Life of this patent

Polymerizable compositions containing olefin metathesis catalysts and cocatalysts, and methods of use therefor

Life of this patent

Abstract

Claims24