Claims
- 1. A process for the preparation of a linear alternating polyketone polymer of carbon monoxide and at lease one .alpha.-olefin of at least three carbon atoms by contacting the carbon monoxide and .alpha.-olefin under polymerization conditions in the presence of a reaction diluent and a catalyst composition formed from a compound of palladium, an anion of an acid with a Pka of less than 4, and a phosphorus bidentate ligand of the general formula
- (R.sub.2)(R.sub.4)P-R.sub.3 -P(R.sub.2)(R.sub.4)
- wherein R.sub.2 is an optionally polar-substituted methyl group, R.sub.4 is an optionally polar-substituted butyl group, and wherein R.sub.3 is a divalent organic bridging group containing four carbon atoms and no two carbon atoms together form part of a single cyclic structure.
- 2. The process of claim 1 wherein the .alpha.-olefin is propene.
- 3. The process of claim 1 wherein the .alpha.-olefin is propene, and ethene is included as an additional monomer.
- 4. The process of claim 1 wherein the .alpha.-olefin contains a maximum of 10 carbon atoms per molecule.
Priority Claims (1)
Number |
Date |
Country |
Kind |
9002645 |
Dec 1990 |
NLX |
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Parent Case Info
This is a continuation of application Ser. No. 732,016, filed Jul. 18, 1991.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
5041530 |
Van Doorn et al. |
Aug 1991 |
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Foreign Referenced Citations (4)
Number |
Date |
Country |
376364 |
Nov 1989 |
EPX |
384517 |
Feb 1990 |
EPX |
393790 |
Apr 1990 |
EPX |
EP390237 |
Oct 1990 |
NLX |
Continuations (1)
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Number |
Date |
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Parent |
732016 |
Jul 1991 |
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