Zarbakhsh
Sirus Zarbakhsh, Birkenheide DE
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20110218259 | PREPARING POLYURETHANES - The invention relates to a process for preparing polyurethanes, which comprises reacting | 09-08-2011 |
20120253005 | CONDITIONING OF DOUBLE METAL CYANIDE CATALYSTS - The invention relates to a method for conditioning double metal catalysts which are used in the production of polyether polyols. The conditioning enhances the performance of the catalyst, so that lower concentrations of the DMC catalyst can be used in polyether polyol production. | 10-04-2012 |
Sirus Zarbakhsh, Hong Kong HK
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20110218262 | PREPARING RIGID POLYURETHANE FOAMS - The invention relates to a process for preparing rigid polyurethane foams, which comprises reacting | 09-08-2011 |
Sirus Zarbakhsh, Central Hong Kong CN
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20110218324 | PREPARING POLYETHER ALCOHOLS - In a process for preparing a polyether alcohol d1) by reaction of a) at least one compound having at least three hydrogen atoms reactive with alkylene oxides and a molecular weight Mn of not more than 600 g/mol with b) an alkylene oxide by using c) a catalyst, said reaction is carried out in the presence of a polyether alcohol d) having a hydroxyl number of 100-800 mg KOH/g and a functionality of 1.5 to 8. | 09-08-2011 |
20110263742 | PROCESS FOR PREPARING POLYETHER ALCOHOLS - The invention relates to a process for preparing polyether alcohols by reacting a) aromatic amines with b) alkylene oxides in the presence of c) a catalyst, wherein the alkylene oxide b) comprises at least 90% by weight, based on the weight of the component b), of propylene oxide and an amine is used as catalyst c). | 10-27-2011 |
20110282027 | PROCESS FOR PRODUCING POLYETHEROLS - The present invention relates to processes for producing polyetherols, in particular to polyetherol block structures, to novel catalysts for use in said processes, and to the polyetherols that can be produced via the process of the invention. The present invention further relates to the use, for producing polyurethanes, of the polyetherols that can be produced in the invention. | 11-17-2011 |
Sirus Zarbakhsh, Central Hong Kong HK
Patent application number | Description | Published |
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20110263737 | PROCESS FOR PRODUCING RIGID POLYURETHANE FOAMS - The invention relates to a process for producing polyurethanes by reacting | 10-27-2011 |
Sirus Zarbakhsh, Hongkong CN
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20120022179 | PROCESS FOR PRODUCING RIGID POLYURETHANE FOAMS - The invention relates to a process for producing rigid polyurethane foams by reacting | 01-26-2012 |
Sirus Zarbakhsh, Hong Kong Central CN
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20120129685 | PROCESS FOR PREPARING MULTIMETAL CYANIDE COMPOUNDS - The invention relates to a process for preparing multimetal cyanide compounds by reacting the aqueous solution of a metal salt a) with the aqueous solution of a hexacyanometalate compound b), wherein the mixture of the solutions a) and b) flows over the surface of a rotating body A to an outer region of the surface of the rotating body A and is flung off from there. | 05-24-2012 |
Sirus Zarbakhsh, Hong Kong CN
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20120214891 | POLYESTER POLYOLS BASED ON AROMATIC DICARBOXYLIC ACIDS - The present invention relates to polyester polyols based on aromatic dicarboxylic acids or derivatives thereof and to the use of the polyester polyols for producing polyurethanes. | 08-23-2012 |
20120214892 | PROCESS FOR PRODUCING POLYESTERETHEROLS - The present invention relates to a novel process for producing polyesteretherols via alkoxylation of polyesterols, and also to the use of the polyesteretherols for producing polyurethanes. | 08-23-2012 |
20130030074 | PROCESS FOR THE CONTINUOUS PRODUCTION OF POLYETHEROLS - The present invention relates to a process for the continuous production of polyether alcohols. | 01-31-2013 |
20130131389 | PROCESS FOR PREPARING POLYETHER ALCOHOLS - What is proposed is a process for preparing polyether alcohols by conversion of the following reactants: a) one or more alkylene oxides and optionally carbon dioxide and b) one or more H-functional starter substances, in the presence of a catalyst, to form a liquid reaction mixture, in a reaction unit ( | 05-23-2013 |
Sirus Zarbakhsh, Hong Kong Pok Fu Lam CN
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20130253164 | PROCESS FOR ORGANOCATALYTIC RING-OPENING POLYMERIZATION - The present invention relates to a process for organocatalytic ring-opening polymerization of at least one monomer M suitable for ring-opening polymerization, or of mixtures thereof, wherein, in a step (i), at least one N-heterocyclic compound is subjected in the presence of at least one Zerevitinov-active compound Z1 to a temperature of at least 80° C. for a period of at least 30 seconds and, in a step (ii), the monomer M is added and reacted. | 09-26-2013 |
20130274526 | PROCESS FOR PREPARING POLYETHER POLYOLS - The present invention relates to a process for preparing polyetherols by catalytic ring-opening polymerization, wherein at least one nitrogen-containing cyclic precatalyst compound is used. | 10-17-2013 |