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1. 发明专利

JPH0627280B2 失效
公开(公告)号：JPH0627280B2
公开(公告)日：1994-04-13
申请号：JP24004189
申请日：1989-09-18
申请人： MITSUI TOATSU CHEMICALS
发明人： NAGO TAKU , NITSUTA KAZUNARI , KATAOKA MAKOTO , OOKAWA JUICHI , TANIGUCHI TOSHUKI , KURODA KAZUMOTO
IPC分类号： C08G18/10 , C08G18/32 , C09D175/00 , C09D175/04

2. 发明专利

JPH0539341A POLYOL AND ITS USE 失效
公开(公告)号：JPH0539341A
公开(公告)日：1993-02-19
申请号：JP19526591
申请日：1991-08-05
申请人： MITSUI TOATSU CHEMICALS
发明人： YAMAZAKI SATOSHI , HASHIBA MASAHIKO , OZAKI SATOSHI , IZUKAWA TSUKURU , NAGO TAKU , ASAI SEIJI
IPC分类号： C08G18/50 , C08G101/00
摘要： PURPOSE:To provide a low-viscosity polyol which rapidly reacts with an org. polyisocyanate, gives a polyurethane foam excellent in low-temp. dimensional stability, compression strength, etc., even when compounded with an increased amt. of water as a blowing agent and a decreased amt. of a chlorofluorocarbon blowing agent, and is useful in spray foaming or board formation for producing a thermal insulant or building material. CONSTITUTION:A rigid polyurethane foam is produced by reacting an org. polyisocyanate with a polyol component which has a mean hydroxyl value of 200-600mgKOH/g and comprises a mixture of a polyol consisting of alkylene oxide adduct of diethylenetriamine and/or triethylenetramine and having a mean hydroxyl value of 200-800mgKOH/g with another polyol.

3. 发明专利

JPS62141015A POLYISOCYANATE MOLDING 失效
公开(公告)号：JPS62141015A
公开(公告)日：1987-06-24
申请号：JP28383685
申请日：1985-12-17
申请人： MITSUI TOATSU CHEMICALS
发明人： UEDA HIROSHI , YAMAMURA HIROSHI , FURUIKE SHUJI , NAGO TAKU , YATSUGI SHIGERU
IPC分类号： C08G18/65
摘要： PURPOSE:To obtain the titled molding having a low content of air voids and a beautiful appearance, by reacting a first component containing an active hydrogen-containing high-molecular compound, a specified chain extender, a catalyst and a blowing agent with a second component comprising a polyisocyanate. CONSTITUTION:A chain extender is obtained by mixing 50-95wt% mixture of 0-30wt% 2,2'-diaminodiphenylmethane, 20-70wt% 2,4'-diamino diphenylmethane and 80-0wt% 4,4'-diaminodiphenylmethane, if required, with 50-5wt% methylene-bridged polyphenylpolyamine of the formula (wherein n is 1-3). A first component formed by mixing 100pts.wt. high-molecular com pound having at least two active hydrogen atoms (e.g., polyetherpolyol) with 1-40pts.wt. said chain extender, a catalyst, a blowing agent, a foam stabilizer, a flame retardant, etc., and a second component comprising a polyisocyanate having at least two isocyanate groups (e.g., tolylene diisocyanate) are fed to a reaction injection molding machine reacted and cured to obtain a (non) expanded polyisocyanate molding.

4. 发明专利

JPS6220992A EXPANSION FLEXIBLE JOINT DEVICE FOR SEWER 失效
公开(公告)号：JPS6220992A
公开(公告)日：1987-01-29
申请号：JP16101285
申请日：1985-07-20
申请人： NIPPON SHIELD ENG KK , MITSUI TOATSU CHEMICALS , KUMAGAI GUMI CO LTD
发明人： TANAKA MINEYA , NAGO TAKU , TASHIRO NOBORU , MIYASHITA YOSHITAKA
IPC分类号： E21D11/04 , E03F3/04 , F16L27/10

5. 发明专利

JP2540634B2 失效
公开(公告)号：JP2540634B2
公开(公告)日：1996-10-09
申请号：JP20578489
申请日：1989-08-10
申请人： MITSUI TOATSU CHEMICALS
发明人： NAGO TAKU , TAKENAKA SHINJI , KATAOKA MAKOTO , TANIGUCHI TOSHUKI , KURODA KAZUMOTO
IPC分类号： C08G18/08 , C08G18/00 , C08G18/32 , C08G18/79

6. 发明专利

JPH07229610A INCINERATING DEVICE FOR WASTE AND INCINERATING METHOD 失效
公开(公告)号：JPH07229610A
公开(公告)日：1995-08-29
申请号：JP2054494
申请日：1994-02-17
申请人： MITSUI TOATSU CHEMICALS , HITACHI METALS LTD
发明人： SHIODE HIROHISA , NAGO TAKU , YAMANAKA HIDESUKE , KATO TATSUO , TAGUCHI FUMIYOSHI
IPC分类号： F23L1/00 , F23G5/00 , F23G5/16
摘要： PURPOSE:To reduce the discharging of hardly decomposable organic chlorinated compound to the extremity by a method wherein the opening of an exhaust gas introducing passage for a secondary combustion chamber is provided so as to be eccentric to the center line of a secondary combustion chamber outwardly so that the exhaust gas, from a primary combustion chamber into the secondary combustion chamber, generates whirling stream in the secondary combustion chamber. CONSTITUTION:A secondary combustion chamber 8 for effecting complete combustion of exhaust gas from a primary combustion chamber 9 is communicated with the primary combustion chamber 9 through an exhaust gas indroducing passage 10. The secondary combustion chamber 8 is provided with a cylindrical configuration having the center line thereof in the vertical direction while the opening of an exhaust gas introducing passage 10 for the secondary combustion chamber 8 is provided so as to be eccentric to the center line of the secondary combustion chamber 8 so that exhaust gas is introduced from the primary combustion chamber 9 into the secondary combustion chamber 8 tangentially to the cylindrical surface of the secondary combustion chamber 8 to generate whirling stream in the secondary combustion cahmber 8. On the other hand, the opening of an air supplying passage 11 for the secondary combustion chamber 8 is provided so as to be eccentric to the center line of the secondary combustion chamber 8 outwardly so that supplying air for the secondary combustion chamber 8 is introduced tangentially into the secondary combustion chamber cylinder and whirling stream is generated in the secondary combustion chamber 8.

7. 发明专利

JPH04159259A PRODUCTION OF METHYLENE-CROSSLINKED POLYPHENYLENE POLYISOCYANATE 失效
公开(公告)号：JPH04159259A
公开(公告)日：1992-06-02
申请号：JP28351590
申请日：1990-10-23
申请人： MITSUI TOATSU CHEMICALS
发明人： ISHIDA NORITOSHI , TAJIMA JUNJI , SHIMAMATSU MITSUNORI , NITTA KAZUNARI , NAGO TAKU
IPC分类号： C07C263/10 , C07C263/20 , C07C265/14 , C08G18/76
摘要： PURPOSE:To obtain highly reactive poly-MDI and high-purity 4,4'-MDI simultaneously by separating the product obtained by reaction of a polyamine with phosgene into a MDI isomer mixture and poly-MDI through distillation and by further separating the isomer mixture through crystallization. CONSTITUTION:A product obtained by reaction with phosgene of a polyamine formed by condensation between aniline and formalin in the presence of an acid catalyst, is distilled and separated into (A) a mixture of various isomers of diphenylmethane diisocyanate (MDI) and (B) a methylene-crosslinked polyphenylene polyisocyanate (poly-MDI) containing 20-60wt.% of MDI. The mixture A is then separated, through a crystallization process, into (C) 10-40wt.% of a uncrystallized portion with acid and hydrolyzable chlorine highly concentrated, (D) 10-40wt.% of an initial soluble portion and (E) 40-60wt.% of the main soluble portion comprising high-purity 4,4'-MDI, and an inert gas is introduced into the component C followed by treatment under heating at 80-120 deg.C and then mixing with the component B at an arbitrary proportion.

8. 发明专利

JPH04154744A PRODUCTION OF METHYLENE-CROSSLINKED POLYARYLAMINE 失效
公开(公告)号：JPH04154744A
公开(公告)日：1992-05-27
申请号：JP27790790
申请日：1990-10-18
申请人： MITSUI TOATSU CHEMICALS
发明人： TAJIMA JUNJI , SHIMAMATSU MITSUNORI , ISHIDA NORITOSHI , NITTA KAZUNARI , NAGO TAKU
IPC分类号： C07C209/78 , C07C209/86 , C07C211/50
摘要： PURPOSE:To obtain the subject compound from aniline and formaldehyde at a low cost by extracting and separating an aqueous layer separated from a reaction product with a water-insoluble organic solvent, separating and recovering the solvent, aniline and the subject compound from the solvent layer and recycling the materials to the reaction system. CONSTITUTION:The subject compound is produced by (1) condensing aniline and formaldehyde using hydrochloric acid as a catalyst and neutralizing the condensation product with excess sodium hydroxide based on the used hydrochloric acid, (2) separating the obtained reaction product into an aqueous layer and an oil layer by allowing to stand the reaction product and washing the oil layer with water and (3) separating the product into layers and finally removing water and aniline from the layer by an aniline-removing process. In the above process, the oil component in the aqueous layers (i) and (ii) separated from the reaction product is extracted with an essentially water-insoluble organic solvent, the extraction product is separated (4), the solvent (c), aniline and the objective compound are separated and recovered (3) from the solvent layer (v) and each component is recycled to extraction step (4), condensation step (1) or aniline-removal step. The organic material content in waste water can be decreased and the recovery of aniline and the yield of the objective compound can be improved.

9. 发明专利

JPH0426666A PREPARATION OF LIQUID POLYISOCYANATE COMPOSITION 失效
公开(公告)号：JPH0426666A
公开(公告)日：1992-01-29
申请号：JP13122790
申请日：1990-05-23
申请人： MITSUI TOATSU CHEMICALS
发明人： FUJINO HIROSHI , MATSUFUJI MIKIO , NAGO TAKU , NITTA KAZUNARI
IPC分类号： B01J27/14 , B01J31/02 , C07B61/00 , C07C263/16 , C07C265/14
摘要： PURPOSE:To prepare the subject composition having excellent color tone and transparency by specifying an oxygen concentration and a reaction temperature in the gas phase of a reaction tank with charging an inert gas when diphenylmethane diisocyanate and an organic phosphorus compound are heated to partially carbodiimidize. CONSTITUTION:When diphenylmethane diisocyanate and an organic phosphorus compound are heated to partially carbodiimidize, the reaction is performed at 190-230 deg.C under charging an inert gas while maintaining the concentration of oxygen gas in the gas phase in a reaction tank at

10. 发明专利

JPS6152486A Expansible flexible joint device for sewer 失效
标题翻译：可扩展的缝合连接装置
公开(公告)号：JPS6152486A
公开(公告)日：1986-03-15
申请号：JP17296584
申请日：1984-08-20
申请人： Nippon Shield Eng Kk , Mitsui Toatsu Chemicals , Kumagai Gumi Co Ltd
发明人： TANAKA MINEYA , NAGO TAKU , TASHIRO NOBORU , MIYASHITA YOSHITAKA
IPC分类号： E02B9/06 , E02F5/10 , E03D3/04 , E03F3/04 , F16L1/038 , F16L27/10
CPC分类号： Y02E10/22

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