Catalyst compositions

Details Catalyst compositions Catalyst compositions

1996-07-19

1998-10-06

Truong, Duc

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

Synthetic resins

Polymer of an ethylenically unsaturated reactant with a...

528398, 528399, C08G 6702

Patent

active

058177450

ABSTRACT:
A process for the manufacture of polyketones wherein carbon monoxide and at least one olefin are polymerized in the presence of a catalyst. The catalyst is prepared by reacting together a promotor; a source of a Group VIII metal; and a compound of the formula A.sub.2 PR.sup.1 PA.sub.2 wherein each A is independently a hydrocarbyl group or a Group B bonded to the phosphorous of the PA.sub.2 moiety directly through a nitrogen, sulphur or oxygen and R.sup.1 is a divalent organic group, with the proviso that at least one of the two A groups bonded to each phosphorous is a Group B.

REFERENCES:
patent: 3694412 (1972-09-01), Nozaki
patent: 5175244 (1992-12-01), Budzelaar et al.
patent: 5359028 (1994-10-01), Drent et al.
patent: 5468708 (1995-11-01), Cooley et al.
--P(R)NEt.sub.2 "; Zur Kenntnis der Organophosphorverbindungen XX; K. Diemert et al.; vol. 15, pp. 155-164; .COPYRGT.1983.
"Synthese und Eigenschaften bifunktioneller Organobromphosphane"; Zur Kenntnis der Organophosphorverbindungen XIX; Chem. Ber. 115, pp. 1947-1955; .COPYRGT.1982.

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