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Matches 701 - 750 out of 1,870

Document Document Title
JP4761641B2  
JP2011162442A
To provide a method for treating a catalyst that reduces a production cost of an isocyanate while permitting industrially efficient production of the isocyanate.A primary amine, urea and/or an N-unsubstituted carbamic acid ester and an a...  
JP4753451B2  
JP4750919B2  
JP4750449B2  
JP4748966B2  
JP4739469B2  
JP4739798B2  
JP2011521923A
Low chlorine, multi-staged method for producing cycloaliphatic diisocyanates. The invention relates to a multi-staged method for the continuous low-chlorine production of cycloaliphatic diisocyanates, comprising the synthesis of diaminod...  
JP4731684B2  
JP4731658B2  
JP4723882B2  
JP4722352B2  
JP2011132175A
To provide a method for treating an isocyanate residue, whereby the isocyanate residue obtained from a decomposition liquid of carbamate can be decomposed into an amine.The method for treating the isocyanate residue comprises: separating...  
JP2011132159A
To provide a method of producing an aromatic polyisocyanate, employing a hydrochloride method and capable of shortening the operation time in its production process.The method of producing an aromatic polyisocyanate comprising a first re...  
JP2011132160A
To provide a method of producing an aliphatic polyisocyanate employing a hydrochloride method and capable of shortening the operation time in its production process to improve its productivity.The method of producing an aliphatic polyiso...  
JP4712422B2  
JP2011111424A
To provide a new alicyclic isocyanate compound having a trans structure, and expected to have utility as a material for a polyurethane resin and a polyurea resin free from yellowing and having high hardness and high modulus because of ha...  
JP2011517444A
The object of the invention is to provide a process for preparing urethanes by reacting aromatic amines with a dialkyl carbonate, wherein the alkyl radical of the organic dialkyl carbonate comprises from 2 to 18 carbon atoms, and the rea...  
JP2011516452A
The continuous or quasi-continuous process for lightening organic polyisocyanates with ozone-containing gas, the treatment of the organic polyisocyanate being effected with an ozone-containing gas which furthermore comprises at least one...  
JP2003513010A5  
JP4676754B2  
JP2008179613A5  
JP2010270147A5  
JP2011501687A
Method of fractionating a mixture ofpolyisocyanates in the liquid phase, optionally in the presence of a suitable solvent or mixture of two or more solvents, by means of a selectively permeable membrane into a permeate stream and a reten...  
JP4606805B2  
JP4606918B2  
JP2010539210A
The present invention relates to a process for preparing diisocyanates from diamines and phosgene in the gas phase.  
JP2010536911A
The present invention relates to the manufacturing process of isocyanate.  
JP2010536928A
The invention provides a process for preparing polyisocyanates, comprising the steps of a) reacting amines with phosgene, b) removing hydrogen chloride, excess phosgene and, if appropriate, the solvent from the reaction mixture, c) separ...  
JP2010536803A
The present invention provides a flow duct type jet reactor and a process for preparing isocyanates using it. The flow duct type jet reactor situates flow ducts in inner feed pipe which form whirlpool and reinforce vortex, thereby amine ...  
JP2010536912A
The present invention relates to the manufacturing process of isocyanate.  
JP2010270147A
To provide a method for producing methylenedianiline (MDA) by reacting aniline with formaldehyde in the presence of acid catalysts while minimizing the N-methyl-MDA content as an undesirable by-product.The semicontinuous method for produ...  
JP4583596B2  
JP4574170B2  
JP4574272B2  
JP4567390B2  
JP4563647B2  
JP4558201B2  
JP4554595B2  
JP4541685B2  
JP2010529064A
The present invention relates to a process for preparing mixtures of diphenylmethane diisocyanates and polyphenyl polymethylene polyisocyanates by sequential reaction of benzene to nitrobenzene to aniline to polyphenyl polymethylene poly...  
JP4515044B2  
JP2010522704A
The present invention describes a process for preparing water-emusifiable polyisocyanate.  
JP4499506B2  
JP2010143900A
To provide a method for gas-phase phosgenation of an aromatic diamine on a large commercial scale while minimizing the formation of solid materials. The method for producing m-toluene diisocyanate comprises supplying a reactor with a gas...  
JP2010143899A
To provide a method for producing isocyanate by reacting a primary amine with phosgene in a gas phase, with a large commercial scale. There is provided the method wherein a primary amine and phosgene are reacted in a gas phase, in a tubu...  
JP2010138171A
To provide a production method of aromatic isocyanate by reacting one or more aromatic primary amine with phosgene in the gas phase. The phosgene and primary aromatic amine are reacted at a temperature above the boiling temperature of th...  
JP2007326854A5  
JP4490288B2  

Matches 701 - 750 out of 1,870