Basf Aktiengesellschaft

Basf Se Corporation

Xavier Sava

Mubarik Mahmood Chowdhry

Markus Schmid

Stefan Mecking

Peter Preishuber-Pfluegl

Michael Röper

Michael Slany

Horst Weiss

Florian M Bauers

Klaus Ebel

Rocco Paciello

Oliver Bey

Frank Haese

Wolfgang Ahlers

Thomas Mackewitz

Gerrit A Luinstra

Jacob Wildeson

Monica Haag

Martin Volland

Ekkehard Lindner

Jürgen Stephan

Oliver Löber

Peter Preishuber-Pflügl

Peter Wegner

Martin Zuideveld

Volker Böhm

Ludmila Kolb

Mahmoud Sunjuk

A method for the emulsion polymerization of one or more olefins by reacting a ligand of general formulae Ia and Ib or a mixture of at least two ligands Ia or Ib, wherein R respectively represents one or several of the following radicals; hydrogen, halogen, nitrile, C-C-alkyl groups, C-C-alkoxy groups, C-C-aralkyl groups, C6-C14-aryl groups, and wherein identical or different compounds of general formulae Ia and Ib can, optionally, be concatenated by one or several bridges, with a phosphine compound PR3' and a metal compound of general formula M(L)or M(L)(L), wherein the variables are defined as follows: M is a transition metal of groups 7-10 in the periodic system of the elements; Lrepresents phosphanes (R)PHor amines (R)NHwith identical or different radicals R, ether (R)O, HO, alkohols (R)OH, pyridine, pyridine derivatives of formula CH(R)N, CO, C-C-alkylnitriles, C-C-arylnitriles or ethylenically unsaturated double bond systems, wherein x is a whole number ranging from 0-3, Lrepresents halogenide ions RNH, wherein x is a whole number ranging from 0 3 and Rrepresents C-C-alkyl, and C-C-alkylane ions, allylane ions, benzylane ions or arylane ions, wherein Land Lcan be concatenated with each other by one or several covalent bonds, z is a number ranging from 0 4. The invention also relates to the immediate use of the reaction product in the polymerization or copolymerization of olefins in water or in a solvent mixture containing at least 50 vol. % water in the presence of an emulsifier and, optionally, in the presence of an activator. 

Method for the emulsion polymerization of olefins

The invention relates to a method for the production of aqueous polymer dispersions, by the polymerisation of one or more olefins in aqueous media in the presence of dispersing agents and optionally organic solvents, characterised in that the polymerisation of the olefin(s) is catalysed by means of one or more complex compounds of general formula (I), where at least one of the groups Rto Rmust be in the form of a group of the following general formula (II) where Z=an electron-withdrawing group and n=a whole number from 1 to 5.

Preparation of aqueous polymer dispersions

Process for preparing an aqueous polymer dispersion by polymerization of at least one olefinically unsaturated compound in an aqueous medium in the presence of at least one dispersant and a solid polymerization catalyst.

Method for producing aqueous polymer dispersions

Process for the emulsion polymerization of one or more olefins by reacting a quinoid compound with a metal compound and a phosphine compound which is substituted by at least one polar radical and subsequently using the reaction product for the polymerization or copolymerization of olefins in water or in a solvent mixture which contains at least 50% by weight of water and at least one emulsifier.

Method for emulsion polymerisation of olefins

The invention relates to a method for producing dialdehydes and/or ethylenically unsaturated monoaldehydes by reacting at least one compound with at least two ethylenically unsaturated double bonds with carbon monoxide and hydrogen in the presence of a hydroformylating catalyst with at least one complex of a metal of subgroup VIII. The subgroup comprises at least pnicogen chelate ligands.

Method for producing dialdehydes and or ethylenically unsaturated monoaldehydes by hydroformylating ethylenically unsaturated compounds

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&#xb0; 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, PO, MgO, MgCl, MgSO, zeolites, or a mixture of these, at a pressure in the range from 1 to 250 bar and at from room temperature to 150&#xb0; C.

Method for the production of thermoplastic poly(3-hydroxyalkanoates)

A system comprising a diphosphine of the formulaR&#x3e;P&#x2014;(CH)&#x2014;PRRwhereRis a divalent radical which together with the phosphorus atom to which it is linked forms an unsubstituted or substituted 2-phosphatricyclo[3.3.1.1{3,7}]decyl group or a derivative thereof in which one or more of the carbon atoms are replaced by heteroatoms,R, Rare each, independently of one another, a monovalent radical having from 1 to 20 atoms or together form a divalent radical having from 2 to 20 atoms,n is 4 or 5,and a mixture of such diphosphines,and palladium or a palladium compound is suitable as carbonylation catalyst for the carbonylation of a conjugated diene.

Diphosphine

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Mannheim, Germany

Xavier Sava