Heterogeneous catalyst for preparing alternating olefin/carbon monoxide copolymers
US5324701A · kind A · utility
6Cited by
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12Claims
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Key dates
| Filing date | Mar 4, 1993 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | Mar 4, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G67/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A catalyst active in the preparation of alternating olefin/carbon monoxide (CO) copolymers is constituted by: PA1 (a) Pd(O.sub.2 CNEt.sub.2).sub.2 (NHEt.sub.2).sub.2 supported on a solid carrier preferably constituted by hydroxylated silica, PA1 (b) an either mono- or bidentate ligand containing one or two nitrogen or phosphorous atoms capable of linking to Pd atom by dative bonds, PA1 (c) NOBF.sub.4. Disclosed are the preparation of the catalyst and the use of said catalyst in alternated copolymerization of ethylene (C2) and/or other olefins with carbon monoxide (CO).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.