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Matches 551 - 600 out of 865

Document Document Title
JP10219146A
To provide a process for producing a polyisocyanate for corrosion- resistant coating materials which is excellent in corrosion resistance without using a rustproof pigment or a rustproof agent. (1) In producing a polyisocyanate by reacti...  
JP10212273A
To obtain a compositions stabilized to water content and heat induction reaction by adding a stabilized effective amount of polyphosphroric acid(PPA) to the composition containing an isocyanate (NCO)-functional substance, especially a po...  
JP10182584A
To obtain the subject compound without using phosgene by silylating an ethylenic unsaturated urethane at urethane nitrogen position by the aid of a sililating agent and thermally decomposing the resultant ethylenic unsaturated N-silyl ur...  
JP10158231A
To provide a method for producing a methylene cross-linked polyphenylene polyisocyanate containing industrially useful diphenylmethane triisocyanates as a main component. This method for producing a methylene cross-linked polyphenylene p...  
JP10158230A
To provide a method for producing a methylene cross-linked polyphenylene polyisocyanate containing industrially useful diphenylmethane triisocyanates as a main component. This method for producing a methylene cross-linked polyphenylene p...  
JP10130354A
To obtain the subject stable dispersion having high solid content by including a mixture of blocked polyisocyanate modified so as to have hydrophilic property with a hydrophobic blocked polyisocyanate as a disperse phase. A solution of a...  
JP10120642A
To produce a fluorine-substituted phenyliscyanate useful as an intermediate for pharmaceutics and agrochenicals by making a fluorine-substituted aniline or the like react with gaseous phosgene in the presence of an ethereal solvent. This...  
JP10113549A
To improve the mixing efficiency of a fluid by providing one discharge opening and an intake opening for first and second fluid substances in a mixing chamber consisting of a rotationary symmetrical casing and forming the second intake o...  
JP10101638A
To obtain the subject coating composition capable of improving yellowing resistance, comprising a stabilized polyisocyanate. This (cyclo)aliphatic polyisocyanate comprises 5-25wt.% of blocked or unblocked isocyanate group in a form in wh...  
JP10095763A
To obtain the subject solution which does not contain a noticable amount of coloration components at all and contain a relatively low amount of hydrolyzable chlorine by directly treating them with hydrogen at a relatively low temperature...  
JP10087598A
To enable the purification of a diurethane by distilling in the presence of a specific alcohol. One or more kinds of diurethanes expressed by the formula [R1 is a 4-10C (substituted)aromatic, araliphatic, alicyclic or aliphatic hydrocarb...  
JP10072428A
To obtain an isocyanate in improved final yield and excellent operability by producing a urethane from a raw material under specific condition and converting the urethane into isocyanate without separating from the reaction mixture. The ...  
JP10045700A
To obtain a diisocyanate compound capable of inducing an oligomer free from coloring and turbidity and having low viscosity by keeping total halogen content and a hydrolyzable halogen content in the compound in specific amounts or below ...  
JP10036333A
To obtain an alicyclic diisocyanate mixture without by-producing a monoisocyanate compound and a biuret compound by hydrogenating the ring of an aromatic diamino compound and subsequently treating the amino groups of the obtained cyclohe...  
JP10017537A
To provide a process for safely and efficiently producing isophorone diisocyanate without using phosgene, dimethyl carbonate, diphenyl carbonate or urea. Isophorone diisocyanate is produced from isophoronediamine by using bis(trichlorome...  
JP10007641A
To obtain the subject compound useful as a raw material for producing industrial products in a wide field such as polyurethane foam, elastomer and coating material in high yield stably for a long period of time. A formamide compound in a...  
JP09323968A
To markedly reduce the concentration of hydrolyzable chlorine as an impurity in an isocyanate compound being in wide use as a raw material for coating materials, adhesives, molded products, etc. A crude isocyanate compound containing hyd...  
JP09316045A
To improve the reaction rate of the phosgenation of an amine hydrochloride compound, esp. polyamine hydrochloride compound to obtain the corresponding isocyanate compound. This isocyanate compound of general formula III: R1-(NCO)n [R1 is...  
JP09278865A
To provide a curing agent composition containing an active methylene type blocked polyisocyanate having a high heat stability and an excellent hue, a process for producing the same and a one-package thermosetting composition excellent in...  
JP2708709B
PURPOSE: To prepare an organic isocyanate in high yield by thermally decomposing the corresponding carbamate in multiple steps and removing the alcohol produced by the thermal decomposition in the intermediate step of the steps by the st...  
JP09249632A
To perform reactive fractionation of a decomposition product by an economical procedure even on an industrial scale by continuously decomposing a carbamic acid ester using an inert solvent while quickly and continuously separating the de...  
JP09249633A
To carry out thermal decomposition of a carbamic acid ester using a high-boiling inert heat-stable solvent having a prescribed boiling point or a narrow boiling range as a heat-exchanger medium. (A) A carbamic acid ester is decomposed un...  
JP09227491A
To obtain a novel fluorine-containing isocyanate which is high in its reactivity with an organic polymer, capable of giving an organic polymer water-repellent and oil-repellent properties, antistaining, weather-resistance, durability, ha...  
JP09216860A
To produce an ether isocyanate useful as a raw material for producing a polyurethane by a reaction thereof with a material reactive with an isocyanate. A polyether (poly)amine represented by the formula X-(-R1-O-R2- NH2)n {X is H, NH2 or...  
JP09202796A
To produce the subject new water-soluble ands relatively nontoxic prodrug, comprising paclitaxel bonded to a cleavable N-(aliphatic or an aromatic)-O-glycosyl carbamate spacer group and useful for treatment, etc., of cancer. This new pac...  
JP2679557B
PURPOSE: To obtain a production capable of manufacturing methyl isocyanate by a more simplified process in a higher yield than that of a conventional process, having a great economic effect. CONSTITUTION: In a method wherein methylcarbam...  
JP09143141A
To obtain a hardly colored urethane-based resin having a urethane or a thiourethane structure in the system by treating a polyisocyanate compound in the presence of oxygen. The preserving treatment of a polyisocyanate compound, especiall...  
JP09143140A
To realize simple and efficient production of isocyanate in a shortened time by treating an acetoacetic anilide derivative having an azo group of an azo compound linked thereto. An acetoacetic anilide derivative to which an azo group of ...  
JP09110817A
To obtain acyl isocyanate as a useful intermediate of synthesizing of urea, etc., by a new method using oxalyl chloride in avoiding generation of by-product, hydrochloric acid which has been a problem in a usual method. The objective acy...  
JP09100263A
To produce a crude MDI having an isocyanate content as high as possible, a total chlorine content as low as possible and an iodine color number as low as possible and excellent in storage stability by minimizing the shortcomings of the p...  
JP09087239A
To obtain an isocyanate useful as a raw material for paints in high yield and selectivity with side reactions suppressed. In the presence of a catalyst such as triphenyltin acetate, a carbamate such as 1,4-bit(methoxycarbonylamino)butane...  
JP2619798B
PURPOSE: To provide the method for preparing aromatic compds. substd. by at least two isocyanate groups. CONSTITUTION: This method is characterized that at least one kind of compd. (A) bearing at least two prim. amine functional groups a...  
JP09059244A
To obtain a composition, raised in reactivity of a diisocyanate compound and useful for synthesizing a polyurethane resin by adding a tertiary amine to the diisocyanate compound substantially without containing a halogen. (B) A tertiary ...  
JP09052874A
To industrially obtain the subject high-purity compound y simultaneous ly distilling out an organic solvent and p-phenylene diisocyanate obtained by cold two-stage phosgenation process under reduced pressures followed by concen trating t...  
JP09052873A
To economically obtain a toluylene diisocyanate by a specific means so as to make a toluylenediamine as intermediate capable of being stored or transported by an ordinary tanker in the form of a mixture with water without any problem of ...  
JP09020743A
To obtain a high-quality organic isocyanate compound by adding a specific three component-based discoloration inhibitor to the compound, useful as a raw material for an elastic material, a foam, an adhesive, etc., while effec tively prev...  
JP09020744A
To obtain a high-quality organic isocyanate compound by adding a specific three component-based discoloration inhibitor to the compound, useful as a raw material for an elastic material, a foam, an adhesive, etc., while effectively preve...  
JP09012525A
To obtain a triisocyanate free from any mechanical problem, by phosgenation of the corresponding triamine under specific conditions without the need of using a large quantity of solvent. In obtaining this compound of formula I [R is a 1-...  
JP2596650B
PURPOSE: To obtain a high-purity isocyanate compound by easily separating and purifying it from a mixed solution in high yield under energy saving. CONSTITUTION: The objective isocyanate compound can be obtained by crystallization and se...  
JP08291129A
PURPOSE: To obtain an organic isocyanate significantly reduced in discoloration by bleaching a discolored organic isocyanate with an ozone-contg. gas. CONSTITUTION: (A) A discolored organic isocyanate, pref. crude one, bottom one or modi...  
JP08291114A
To perform the fractionation and purification of an aromatic polyamine mixture by a simple means so as to afford the corresponding isomers in a pure or concentrated form. The fractionation and purification of a diphenylmethane-based poly...  
JP08291113A
To perform the fractionation and purification of an aromatic polyamine mixture (in particular, of diphenylmethane base) to obtain the corresponding isomers in high purity or concentration. The fractionation and purification of an aromati...  
JP08283211A
To economically and advantageously fractionate and purify the subject mixture with a good separation efficiency under mild conditions by recycling and extracting the aromatic polyamine mixture in the multi-stage extraction in a two-phase...  
JP08283213A
To readily fractionate and separate the subject mixture with a god separation efficiency by extracting an aromatic polyamine mixture with a two-phase system comprising a specific solvent phase and an aqueous phase according to the counte...  
JP08283210A
To readily fractionate and purify the subject mixture and produce isomers in the pure form or in the enriched form with a good separation efficiency by recycling and extracting the aromatic polyamine mixture in the multi-stage extraction...  
JP08283214A
To readily fractionate and separate the subject mixture with a good separation efficiency by extracting an aromatic polyamine mixture with a two-phase system comprising a specific solvent phase and an aqueous phase according to the count...  
JP08283215A
To provide a method for fractionating and purifying an aromatic polyamine mixture, capable of especially facilitating the fractionation and purification of a diphenylmethane-based aromatic polyamine mixture and obtaining isomers thereof ...  
JP08283212A
To readily fractionate and purify the subject mixture and produce isomers in the pure form and in the enriched form with a good separation efficiency by recycling and extracting the aromatic polyamine mixture in the multi-stage extractio...  
JP08231490A
To safely purify carbonyl chloride without liquefaction and highly profitably phosgenate by purifying contaminated carbon monoxide by adsorption in a solvent and using the obtained carbonyl chloride solution. This method of phosgenation ...  
JP08225509A
To provide a method for producing a polyisocyanate blocked with 3,5-dimethylpyrazole, and capable of omitting the necessity of the separate production of a blocking agent and handling of the same as a solid. This method for producing a p...  

Matches 551 - 600 out of 865