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1. 发明专利

JP2542533B2 失效
公开(公告)号：JP2542533B2
公开(公告)日：1996-10-09
申请号：JP29927490
申请日：1990-11-05
申请人： MITSUBISHI RAYON CO
发明人： SUGIMORI TERUHIKO , YAMAMOTO TAKASHI , AOKI KUNIHIRO , MATSUMOTO SHIRUYOSHI , OONISHI HIROAKI , TAKAHASHI HIROSHI
IPC分类号： B01D71/36 , B01D71/44

2. 发明专利

JPH05132813A ACRYLONITRILE PRECURSOR FIBER 失效
公开(公告)号：JPH05132813A
公开(公告)日：1993-05-28
申请号：JP29606291
申请日：1991-11-12
申请人： MITSUBISHI RAYON CO
发明人： HAJIKANO AKIRA , HAYASHI SHOJI , YAMAMOTO TAKASHI , AOKI KUNIHIRO
IPC分类号： D01F6/18 , D01F9/22 , D02J1/22
摘要： PURPOSE:To provide an acrylonitrile precursor fiber having high productivity and quality and giving a carbon fiber having high strength and elastic modulus. CONSTITUTION:The objective acrylonitrile precursor fiber having an iodine adsorption of

3. 发明专利

JPH04141210A METHOD AND APPARATUS FOR CONCENTRATING NITROGEN AND ENRICHING CARBON DIOXIDE 失效
公开(公告)号：JPH04141210A
公开(公告)日：1992-05-14
申请号：JP26321290
申请日：1990-10-02
申请人： MITSUBISHI RAYON CO
发明人： TAKAHASHI HIROSHI , AOKI KUNIHIRO , HIRAI TAKAYUKI , KAMINE YASUHIRO
IPC分类号： B01D53/22
摘要： PURPOSE:To simply prepare nitrogen-concentrated and carbon dioxide-enriched gas in low cost by supplying air and carbon dioxide-containing gas to one gas separation membrane. CONSTITUTION:A nitrogen concentrating and carbon dioxide enriching apparatus has a module having a gas separation membrane 2 capable of more transmitting oxygen as compared with nitrogen, the air supply means 7 connected to the module 1 on the primary side thereof and the carbon dioxide-containing gas generating source 11 connected to the module 1 on the secondary side thereof. In order to prepare nitrogen conc. and carbon dioxide enriched gas using the aforementioned apparatus, air is supplied to the module 1 on one side thereof from the air supply means 7 and carbon dioxide-containing gas is supplied to the module 1 on the other side thereof from the carbon dioxide-containing gas supply generating source 11 and the nitrogen-concentrated and carbon dioxide-enriched gas is obtained from a gas lead-out port 4.

4. 发明专利

JPH0364319A FLUORINATED POLYESTER 失效
公开(公告)号：JPH0364319A
公开(公告)日：1991-03-19
申请号：JP20036489
申请日：1989-08-03
申请人： MITSUBISHI RAYON CO
发明人： ONISHI HIROAKI , MATSUMOTO SHIRUYOSHI , AOKI KUNIHIRO
IPC分类号： C08G63/682
摘要： PURPOSE:To prepare a melt-moldable fluorinated polyester excellent in the water and oil repellency and chemical resistance by incorporating three kinds of specific structural units in specified proportions into the polyester in producing it from a dibasic acid and diols by, e.g. the direct method. CONSTITUTION:A fluorinated polyester which comprises structural units of formulas I, II, and III (wherein (n) is 2-10; R is 1-10 alkylene; and R' is a divalent arom. or aliph. group) and in which the molar ratio of the structural units of I to II is (100/0)-(20-80) and the total molar number of the structural units of I and II is equal to the molar number of the structural units of III. The fluorinated polyester is prepd. either from a dibasic acid and diols by the direct method, or from a lower alkyl ester of a dibasic acid (e.g. dimethyl terephthalate) by ester exchange reaction. In these reactions, if necessary, a metal compd. as a catalyst (e.g. zinc) and a stabilizer (e.g. phosphoric acid) are added.

5. 发明专利

JPH0359026A FLUORINATED POLYESTER 失效
公开(公告)号：JPH0359026A
公开(公告)日：1991-03-14
申请号：JP19267389
申请日：1989-07-27
申请人： MITSUBISHI RAYON CO
发明人： ONISHI HIROAKI , MATSUMOTO SHIRUYOSHI , AOKI KUNIHIRO
IPC分类号： C08G63/682
摘要： PURPOSE:To obtain a transparent fluorinated polyester excellent in water and oil repellency by constituting it from a plurality of kinds of specified structural units in a specified ratio. CONSTITUTION:A fluorinated polyester consisting of structural units of formulas I-III (wherein Rf is a 1-10C fluoroalkyl; R is a 1-10C alkylene; and R is a bivalent aromatic or aliphatic group), wherein the molar ratio of the structural units of formula I to those of formula II is 100/0-20/80, and the total number of moles of the structural units of formulas I and II is substantially equal to that of the structural units of formula III (e.g. a polyester obtained from 4,4,5,5,6,6,7,7,8,8,9,9,9-tridecafluorononane-1,2-diol, ethylene glycol and dimethyl terephthalate).

6. 发明专利

JPH0290990A FILTERING PROCESS FOR LOW CONDUCTANCE WATER 失效
公开(公告)号：JPH0290990A
公开(公告)日：1990-03-30
申请号：JP24035988
申请日：1988-09-26
申请人： MITSUBISHI RAYON CO
发明人： AOKI KUNIHIRO , MITANI KAZUTAMI , HOSOKAWA HIROSHI , FUJII YASUYUKI , YOSHIDA HARUHIKO
IPC分类号： B01D61/14 , B01D69/02 , C02F1/44
摘要： PURPOSE:To reduce remarkably the generation of deposit of a porous membrane to the permeation side surface and make membrane life longer by using the porous membrane having a specific value or more of zeta potential and filtering low conductance water. CONSTITUTION:A porous membrane having -20mV or more of zeta potential at pH7 found by fluidized potential measurement in filtering low conductance water of comparatively high purification degree used particularly in the electronic industry or the like is used. As the generation of deposit to the permeation side surface of the porous membrane is remarkably reduced by utilizing said filtering process, the porous membrane can be regenerated by cleaning the membrane surface on the raw water side only when pressure loss is generated because of clogging of the porous membrane, and the life of treated membrane can be longer. Also, little deposit is generated on the surface of permeation side to reduce the lowering of quality of treated water.

7. 发明专利

JPS63290857A METHACRYLIC ACID ESTER COMPOUND 失效
公开(公告)号：JPS63290857A
公开(公告)日：1988-11-28
申请号：JP12738887
申请日：1987-05-25
申请人： MITSUBISHI RAYON CO
发明人： AOKI KUNIHIRO , IWASAKI TADASHI , KAMIMURA SHIGEO , MINAMI SHUNSUKE
IPC分类号： C08F20/36 , C07C67/00 , C07C241/00 , C07C251/24 , C08F20/34
摘要： NEW MATERIAL:A compound shown by formula I (R is H or methyl; n is 2 or 3). USE:Having a complex forming ability with a metallic ion and useful as a metal scavenger. Especially a cobalt salt thereof has reversible oxygen adsorbing and desorbing ability and is useful as an oxygen separating agent. The titled compound can be produced without using a high polymer complex of Schiff base type as a specific monomer and causing problems such as deterioration and denaturation. PREPARATION:An epoxy group-containing methacrylic acid ester shown by formula II is reacted with a Schiff base compound ester shown by formula III in a solvent such as methanol at 10-100 deg.C to give a compound shown by formula I. The compound shown by formula III is obtained by condensing through dehydration a diamine with salicylaldehyde in a solvent such as methanol or benzene at 50-100 deg.C.

8. 发明专利

JPS6327448B2 失效
公开(公告)号：JPS6327448B2
公开(公告)日：1988-06-03
申请号：JP606981
申请日：1981-01-19
申请人： MITSUBISHI RAYON CO
发明人： OOTANI TAKEJI , FUSHIIE TAKASHI , AOKI KUNIHIRO
IPC分类号： D01F9/22

9. 发明专利

JPS635066A CONCENTRATION OF ORGANIC ACID AMIDE 失效
公开(公告)号：JPS635066A
公开(公告)日：1988-01-11
申请号：JP14811586
申请日：1986-06-26
申请人： MITSUBISHI RAYON CO
发明人： SAKURAI TOSHIO , AOKI KUNIHIRO
IPC分类号： C07B63/00 , C07B31/00 , C07C67/00 , C07C231/00 , C07C231/24 , C07C233/03
摘要： PURPOSE:To obtain a concentrated aqueous solution of an organic acid amide, by contacting an aqueous solution of an organic acid amide with carbon dioxide gas containing a specific amount of a hydrocarbon thereby dissolving the organic acid amide in the carbon dioxide gas phase at high concentration, and decreasing the pressure of the carbon dioxide gas to effect the condensation of the concentrated aqueous solution. CONSTITUTION:An aqueous solution of an organic acid amide such as dimethylformamide is brought into contact with liquefied carbon dioxide gas or carbon dioxide gas of supercritical state added with 0.1-20wt% 2-7C hydrocarbon based on the carbon dioxide gas to effect the dissolution of the organic acid amide in the carbon dioxide gas phase at high concentration. The contacting temperature is preferably near the critical temperature of carbon dioxide (31 deg.C). The pressure of the carbon dioxide gas containing dissolved acid amide is decreased to condense and recover the concentrated aqueous solution of the organic acid amide. the hydrocarbon used in the above process is e.g. acetylene, 1-butene, butane, benzene, toluene, etc. EFFECT:The amount of carbon dioxide gas can be decreased and the process is advantageous from an economical point of view. The energy consumption can be reduced by removing the water by distillation after concentration compared with the case that the distillation is carried out in whole process.

10. 发明专利

JPS6234846B2 失效
公开(公告)号：JPS6234846B2
公开(公告)日：1987-07-29
申请号：JP10213180
申请日：1980-07-25
申请人： MITSUBISHI RAYON CO
发明人： OOTANI TAKEJI , AOKI KUNIHIRO , TAKEMURA TOORU
IPC分类号： D01F2/28

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