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Matches 551 - 600 out of 1,628

Document Document Title
JP4416465B2  
JP2010018572A
To provide a method for producing methylene-crosslinked polyphenyl polyisocyanate exhibiting high hue-improving effects.The production method of the methylene-crosslinked polyphenyl polyisocyanate comprises a phosgenation reaction step o...  
JP2010018534A
To provide an industrially easily applicable method for producing a polyisocyanate by which the polyisocyanate having excellent hue can be produced from a raw material in an amount smaller than that in a conventional technique.The method...  
JP2010501615A  
JP2009545553A  
JP4383098B2  
JP2009542770A  
JP4375949B2  
JP4360878B2  
JP4357418B2  
JP2009537578A  
JP2009227677A
To provide a new method leading to improvement of coloration of a produced diamine/polyamine mixture of diphenylmethane series or coloration of isocyanate and polyurethane produced from the mixture.In the method for producing diamines an...  
JP4339583B2  
JP4336655B2  
JP2009209144A
To find out a comprehensive method for producing MDI, significantly reducing or completely avoiding a waste liquid obtained by preparation of a precursor MDA and loading of salts discharged to the outside of overall processes through the...  
JP2009203198A
To provide a method for producing a polyisocyanate, which sufficiently improves hue of a polyisocyanate and controls formation of precipitate during purification.The method for producing a polyisocyanate comprises a contact process of re...  
JP4328109B2  
JP2009196991A
To provide a method for producing a solvent-free isocyanate by providing a possibility of reducing the quantity of the solvent required in the flow of dephosgenated isocyanate, in this case, the isocyanate flow must be separated in the p...  
JP4324558B2  
JP4324560B2  
JP4324559B2  
JP2009190024A
To provide a mixer reactor which ensures a through mixing for two flowable substances of widely different viscosities in a quality and speed.The mixer reactor includes a substantially rotationally symmetric housing which includes a distr...  
JP4314631B2  
JP4312609B2  
JP4314071B2  
JP4307588B2  
JP4308776B2  
JP4298995B2  
JP4297702B2  
JP2009149614A
To provide a light-colored isocyanate as a raw material for a light-colored or uncolored polyisocyanate.The method for producing the light-colored isocyanate is regulated as follows. The PRI (polarographically reducible impurity) value o...  
JP4292559B2  
JP4292558B2  
JP4292561B2  
JP4292560B2  
JP2009523757A  
JP2009523153A  
JP2009523151A  
JP2009126865A
To produce an aromatic diisocyanate by reacting a corresponding primary aromatic diamine with phosgene in a vapor phase.Phosgene is reacted with the primary aromatic diamine within a mean residence time of from 0.05 to 15 seconds. The ar...  
JP2009522317A  
JP2009120528A
To provide a method for producing a polyisocyanate, which can be suitably used for producing a product polyisocyanate having slight discoloration and low acidity while reducing an energy consumption and purifying an unpurified polyisocya...  
JP2009119346A
To provide a flash tank which prevents the corrosion by a corrosive fluid and is capable of attempting the enhancement of durable performance, to provide a depressurizing device equipped with the flash tank and to provide a polyisocyanat...  
JP4273531B2  
JP2009108034A
To provide fluorinated carbamates of high purity more efficiently in a high yield.The manufacturing method of fluorinated carbamates comprises causing an amine or a polyamine to react with a fluorinated carbonate in the presence of a cat...  
JP4266748B2  
JP2009519247A  
JP4257798B2  
JP4250440B2  
JP4247735B2  
JP2009510015A  
JP2009051785A
To provide an isocyanoacetic acid alkyl ester liquid composition enabling inhibiting the discoloration with time of an isocyanoacetic acid alkyl ester during its storage.The liquid composition comprises an isocyanoacetic acid alkyl ester...  

Matches 551 - 600 out of 1,628