Patent ID: 6667386
Filing Date: 2003-12-23
Classification: B01J,C07F,C08G

Abstract:
A process for the preparation of linear, alternating copolymers of carbon monoxide and &agr;-olefinically unsaturated compounds, said process comprising preparing said copolymers in the presence of a water-soluble transition metal complex of the formula (I) whereG is â€”(CRb2)râ€”, â€”(CRb2)sâ€”Si(Ra)2â€”(CRb2)tâ€”, â€”Aâ€²â€”Oâ€”Bâ€²â€” or â€”Aâ€²â€”Z(R5)â€”Bâ€²â€” where R5 is hydrogen or is C1- to C28-alkyl, C3- to C14-cycloalkyl, C6- to C15-aryl or C7- to C35-alkylaryl where the alkyl radical is of 1 to 20 carbon atoms and the aryl radical is of 6 to carbon atoms, each of which is unsubstituted or substituted by functional groups based on elements of groups IVA, VA, VIA or VIIA of the Periodic Table of the Elements, or is â€”N(Rb)2, â€”Si(Rc)3 or a radical of the formula II whereq is an integer from 0 to 20 and the further substituents in (II) have the same meanings as in (I), Aâ€² and Bâ€² are each â€”(CRb2)râ€”, or â€”(CRb2)sâ€”Si(Ra)2â€”(CRb2)tâ€”, Ra independently of one another, are each C1- to C20-alkyl, C3- to C10-cycloalkyl, C6- to C15-aryl or C7- to C25-alkylaryl where the alkyl moiety is of 1 to 10 carbon atoms and the aryl moiety is of 6 to 15 carbon atoms, Rb is the same as Ra, or hydrogen or Si(Rc)3, Rc is C1- to C20-alkyl, C3- to C10-cycloalkyl, C6- to C15-aryl or C7- to C25-alkylaryl where the alkyl moiety is of 1 to 10 carbon atoms and the aryl moiety is of 6 to 15 carbon atoms, r is 1, 2, 3 or 4, râ€² is 1 or 2, s and t are each 0, 1 or 2, where 1&lE;s+t &lE;3 Z is nitrogen, phosphorus, arsenic or antimony, M is a metal selected from the groups VIIIB, IB or IIB of the Periodic Table of Elements, E1 and E2 are each nitrogen, phosphorus, arsenic or antimony, R1 to R4 are each linear or branched C2to C28-alkyl, C3to C14-cycloalkyl or C7- to C43-alkylaryl where the alkyl moiety is of 1 to 28 carbon atoms and the aryl moiety is of 6 to 15 carbon atoms, each of which is substituted by at least one polar protic or ionic functional group based on nonmetallic elements of groups IVA to VIA of the Periodic Table of Elements, L1 and L2 are formally charged or neutral ligands, X are formally monovalent or polyvalent anions, p is 0, 1, 2, 3 or 4, m and n are each 0, 1, 2, 3 or 4, where p=mÃ—n.