11.
    发明专利
    未知

    公开(公告)号:DE10235317A1

    公开(公告)日:2004-02-12

    申请号:DE10235317

    申请日:2002-08-01

    Applicant: BASF AG

    Abstract: Lactones are prepared by catalytic carbonylation of oxiranes using a catalyst system comprising a) at least one cobalt compound as component A and b) at least one metal compound of the formula (I) as component B, MX x R n-x (I) where M is an alkaline earth metal or a metal of group 3, 4 or preferably 12 or 13 of the Periodic Table of the Elements, R is hydrogen or a hydrocarbon radical which may be substituted on the carbon atoms other than the carbon atom bound to M, X is an anion, n is a number corresponding to the valence of M and x is in the range from 0 to n, with n and x being selected so that the compound is uncharged, as catalyst.

    PRODUCTION OF POLYOXYMETHYLENE AND SUITABLE (II) CATALYSTS

    公开(公告)号:AU2003229640A1

    公开(公告)日:2003-10-20

    申请号:AU2003229640

    申请日:2003-04-10

    Applicant: BASF AG

    Abstract: A process is described for preparing polyoxymethylene by contacting a formaldehyde source with a catalyst of the formula I [Cp v ML w ] m+ Z m/n n- (I) where M is Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Ru, Os, Co, Rh or Ir, Cp is a cyclopentadienyl ligand C 5 H (5-u) R 1 u , where u is from 0 to 5 and R 1 is alkyl, alkenyl, aryl, heteroaryl, aralkyl, COOR 2 , COR 2 , CN or NO 2 , and R 2 is H, alkyl, aryl or aralkyl, v is 1 or 2, each L is independently a nitrile, CO or a ligand displaceable by CO, w is an integer from 0 to 4, Z is an anion, and m and n are each independently an integer from 1 to 3.

    14.
    发明专利
    未知

    公开(公告)号:DE50202933D1

    公开(公告)日:2005-06-02

    申请号:DE50202933

    申请日:2002-07-17

    Applicant: BASF AG

    Abstract: A process for preparing thermoplastic poly(3-hydroxyalkanoates) with a molar mass greater than 6 000 g/mol and a melting point in the range from 70 to 170° C., by reacting an oxirane compound with carbon monoxide in the presence of a transition metal catalyst which has rhodium(0), nickel(0), iron(0), cobalt(0) or palladium(0) as central metal and has been chelated with neutral Lewis bases, and also in the presence of diisocyanates, ortho esters, acetals, anhydrides, P 2 O 5 , MgO, MgCl 2 , MgSO 4 , zeolites, or a mixture of these, at a pressure in the range from 1 to 250 bar and at from room temperature to 150° C.

    METHOD FOR THE PRODUCTION OF POLY(3-HYDROXYALKANOATES) IN THE PRESENCE OF A NUCLEOPHILE

    公开(公告)号:AU2003212277A1

    公开(公告)日:2003-09-16

    申请号:AU2003212277

    申请日:2003-02-26

    Applicant: BASF AG

    Abstract: The invention relates to a catalytical process for preparing poly(3-hydroxyalkanoates) by copolymerizing an oxirane compound with carbon monoxide in the presence of a) at least one single- or multicenter neutral transition metal complex (A) based on a metal of groups 5 to 11 of the Periodic Table of the Elements, in which the metal center(s) is/are present in the formal oxidation state 0, and/or b) at least one single- or multicenter anionic transition metal complex (B) based on a metal of groups 5 to 11 of the Periodic Table of the Elements, where multicenter transition metal complexes have metal centers which, without exception, are of the same transition metal, which comprises carrying out the copolymerization in the presence of at least one nucleophile other than hydroxy-substituted pyridine compounds.

    19.
    发明专利
    未知

    公开(公告)号:DE10147711A1

    公开(公告)日:2003-04-10

    申请号:DE10147711

    申请日:2001-09-27

    Applicant: BASF AG

    Abstract: The invention relates to a method for the production of polyether alcohols from oxiran compounds in the presence of at least one multi-metal cyanide catalyst and a moderator gas selected from the group containing carbon dioxide, carbon monoxide, hydrogen and dinitrogen oxide or various mixtures of said gases at pressures of at least 1 bar, in addition to polyether alcohols obtained according to said method.

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