Abstract: A method of separating propylene oxide from a mixture (M) comprising propylene oxide and methanol, said method comprising: (i) introducing said mixture (M) into an extractive distillation column; (ii) additionally introducing an extracting solvent into said extractive distillation column; (iii) distilling propylene oxide overhead from said extractive distillation column as top stream; (iv) withdrawing a bottoms stream from said extractive distillation column; (v) compressing the top stream obtained overhead in (iii) by means of at least one compressor to give a compressed vapor.
Type:
Application
Filed:
July 6, 2005
Publication date:
May 7, 2009
Applicants:
BASF AKITENGESELLSHAFT, THE DOW CHEMICAL COMPANY
Abstract: Use of intumescent coating materials for the flame-inhibiting finishing of articles containing microencapsulated organic latent-heat storage materials.
Type:
Application
Filed:
April 22, 2003
Publication date:
November 13, 2003
Applicant:
BASF Akitengesellshaft
Inventors:
Ekkehard Jahns, Marco Schmidt, Joachim Pakusch, Horst Seibert
Abstract: An inhibitor mixture containing, as components, a) at least one nitroxyl radical (derivative), b) at least one phenol (derivative) and c) at least one chemical compound which contains at least one phosphorus atom which has the oxidation state +3 is preferably used for stabilizing compounds capable of free radical polymerization.
Type:
Application
Filed:
July 25, 2002
Publication date:
May 22, 2003
Applicant:
BASF Akitengesellshaft
Inventors:
Heinz Friedrich Sutoris, Gerhard Wagenblast, Volker Schliephake, Juegen Schroeder, Harald Keller, Thomas Jaworek
Abstract: The present invention provides a process for preparing polymer powders by evaporating the volatile constituents from aqueous dispersions of film-forming polymers P in the presence of drying assistants T selected from the salts of oligomeric arylsulfonic acid-formaldehyde condensates wherein prior to the evaporation of the volatile constituents the aqueous polymer dispersion comprises at least 1.5% by weight, preferably at least 1.7% by weight, based on the polymer in the dispersion, of at least one anionic surface-active compound AO having at least one C6-C32 alkyl group; the polymer powders obtainable by the process; and their use in binding mineral building materials.
Type:
Application
Filed:
August 21, 2001
Publication date:
May 23, 2002
Applicant:
BASF Akitengesellshaft
Inventors:
Mario Sandor, Joachim Pakusch, Heinrich Sack, Markus Koppers, Hans-Juergen Denu, Rolf Gulden