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1. 发明专利

JPH0372530A HEAT-RESISTANT POLYSULFONE 失效
公开(公告)号：JPH0372530A
公开(公告)日：1991-03-27
申请号：JP13018790
申请日：1990-05-22
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： TERAMOTO TAKEO , SHIRAISHI KAZUTO
IPC分类号： C08G75/23 , C08G75/00
摘要： PURPOSE:To obtain a polysulfone having a higher degree of polymerization and higher heat resistance than those of conventional polysulfones by forming a molecular structure wherein a specified bisphenolfluorene is combined with a specified halogenated diphenyl sulfone. CONSTITUTION:A polysulfone shown by formula I, wherein X is a group of formula II and Y is a group of either formulas III and IV or formula IV, and having a viscosity [eta]inh of at least 0.4 based on a value determined at 30 deg.C on a solution prepared by dissolving 0.5g of polysulfone in 100ml of N-methyl-2- pyrrolidone. In formulas II and IV, R1 to R4 are each H, CH3 or C2H5; R5 and R6 are each H or an electron attracting group, provided that at least one of them is an electron attracting group.

2. 发明专利

JPH03165821A PRODUCTION OF GAS SEPARATION MEMBRANE HAVING ASYMMETRIC POLYSULFONE 失效
公开(公告)号：JPH03165821A
公开(公告)日：1991-07-17
申请号：JP22112490
申请日：1990-08-24
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： KAZAMA SHINGO , TERAMOTO TAKEO , KANEDA TSUTOMU , FURUKAWA MASAYA , SHIRAISHI KAZUTO , SAKASHITA MASAO
IPC分类号： B01D71/68
摘要： PURPOSE:To obtain a gas separation film having an excellent permeation rate of oxygen and a selectivity for oxygen and nitrogen by dissolving soluble aromatic polysulfone having a specified structural unit in a polar solvent to prepare a polymer solution and then removing the solvent from the solution. CONSTITUTION:An soluble aromatic polysulfone expressed substantially by (X-Y)n, wherein X and Y are the structural units expressed by formulae I and II, respectively, is dissolved in a polar solvent such as N,N- dimethylacetoamide, to prepare a polymer solution. In the formulae, R1-R4 represent H, CH3, or C2H5, R5 and R6 are H or an electron attractive group. This solution is brought into contact with such a solidifying liquid that is soluble with the solvent but insoluble with the polysulfone to remove the solvent from the polymer solution. Thus, the obtd. gas separation film composed of asymmetric polysulfone has excellent the permeation rate for oxygen, excellent nitrogen- oxygen selectivity, heat resistance, chemical resistance and mechanical strength.

3. 发明专利

JPH09241340A ACRYLATE RESIN FOR OPTICAL MATERIAL AND OPTICAL MATERIAL MADE THEREFROM 失效
公开(公告)号：JPH09241340A
公开(公告)日：1997-09-16
申请号：JP5639896
申请日：1996-03-13
申请人： NIPPON STEEL CHEMICAL CO , NIPPON STEEL CORP
发明人： KAWASATO HIRONOBU , FUJISHIRO KOICHI , TERAMOTO TAKEO , SHIRAISHI KAZUTO
IPC分类号： G02B1/10 , C08F290/00 , C08F299/02 , C09D163/10 , G02B1/04 , G02B1/14
摘要： PROBLEM TO BE SOLVED: To obtain an acrylate resin which yellows little when subjected to a weather resistance test and a heat resistance test and therefore has an increased degree of freedom of the amount of additives such as a stabilizer by specifying the hue of a fluorenehydroxypropyl acrylate. SOLUTION: This resin comprises an acrylate resin represented by formula I (wherein R is hydrogen or methyl; and (n) is an integer of 0-20) and having a hue (APHA) of 300 or below. The acrylate resin is obtained by reacting diglycidyl ether represented by formula II (wherein (n) is an integer of 0-20) and having a hue (APHA) of 200 or below with (meth)acrylic acid.

4. 发明专利

JPH0372927A GAS SEPARATION MEMBRANE 失效
公开(公告)号：JPH0372927A
公开(公告)日：1991-03-28
申请号：JP13018890
申请日：1990-05-22
申请人： NIPPON STEEL CORP , NIPPON STEEL CHEMICAL CO
发明人： TERAMOTO TAKEO , SHIRAISHI KAZUTO
IPC分类号： B01D71/68
摘要： PURPOSE:To obtain a gas separation membrane having high separation efficiency by using polysulfone represented by a specific formula having predetermined inherent viscosity. CONSTITUTION:A solution prepared by dissolving 0.5g of polysulfone represented by formula I (wherein X is a group represented by formula II and Y is a group represented by formula III and/or formula IV (wherein R1-R4 are H, CH3 or C2H5 and R5 and R6 are H or an electron withdrawing group and at least one of them is the electron withdrawing group) in 100ml of N-methyl-2-pyrrolidone is set to 0.2 or more in its inherent viscosity based on a value measured at 30 deg.C. The gas separation membrane obtained using this polysulfone holds or exceeds a conventional oxygen transmission coefficient and the separation factor thereof can be markedly enhanced.

6. 发明公开

EP2402413A4 POLYMER LIGHT-EMITTING MATERIAL, METHOD FOR PRODUCING SAME, AND ORGANIC ELECTROLUMINESCENT ELEMENT 有权
标题翻译：发光聚合物材料，其制备方法和有机电致发光元件
公开(公告)号：EP2402413A4
公开(公告)日：2012-08-15
申请号：EP10746266
申请日：2010-02-25
申请人： NIPPON STEEL CHEMICAL CO
发明人： TANAKA HIROSHIGE , ISHIYAMA TAKAYA , SHIRAISHI KAZUTO , ASARI TOHRU , HAYASHIDA HIROYUKI , YOSHIMURA KAZUAKI
IPC分类号： C09K11/06 , C08F8/42 , H01L51/50
CPC分类号： C09K11/06 , C08F8/42 , C09K2211/1408 , C09K2211/1425 , C09K2211/185 , H01L51/004 , H01L51/0043 , H01L51/0084 , H01L51/0085 , H01L51/5012 , H01L51/5016

7. 发明专利

JPH07278284A COPOLYCARBONATE 失效
公开(公告)号：JPH07278284A
公开(公告)日：1995-10-24
申请号：JP9694594
申请日：1994-04-11
申请人： NIPPON STEEL CHEMICAL CO
发明人： SHIRAISHI KAZUTO
IPC分类号： C08G64/06 , C08G64/00
摘要： PURPOSE:To obtain a copolycarbonate resin exhibiting excellent optical characteristics and thermal resistance by using bisphenols of specific structures as the starting material. CONSTITUTION:A copolycarbonate resin having repeating units represented by formulae I and II in a molar ratio of 90/10 to 5/95. It is preferred that the resin have a number-average molecular weight of 20,000 to 200,000. A bisphenol fluorene represented by formula I can be obtained by the condensation of phenol with 9-fluorenone as the starting material. A bisphenol Z represented by formula II can be obtained by the condensation of phenol with cyclohexanone as the starting material. The copolymer is obtained from the mixture of the above bisphenols preferably by the phosgene method.

8. 发明专利

JPH0640155A HEAT-SENSITIVE RECORDING MATERIAL 失效
公开(公告)号：JPH0640155A
公开(公告)日：1994-02-15
申请号：JP21737992
申请日：1992-07-24
申请人： NIPPON STEEL CHEMICAL CO
发明人： SHIRAISHI KAZUTO
IPC分类号： B41M5/337 , B41M5/26
摘要： PURPOSE:To obtain heat-sensitive recording material superior in whiteness, blushing resistance and plasticizer resistance, by providing a heat-sensitive recording layer containing a leuco dye, acid developer and compound represented by a specific general formula. CONSTITUTION:A leuco dye, developer, sensitizer and compound represented by the formula shown [where R1 represents H, OH, NH2, OCH2 and CH2OH, R2 represents CnH2n+1 (0

9. 发明专利

JPH04156926A PRODUCTION OF HOLLOW YARN SEPARATING MEMBERANE 失效
公开(公告)号：JPH04156926A
公开(公告)日：1992-05-29
申请号：JP28184090
申请日：1990-10-22
申请人： NIPPON STEEL CORP
发明人： HARADA YOSHIYUKI , SHIRAISHI KAZUTO
IPC分类号： B01D69/08 , B01D71/56 , B01D71/68
摘要： PURPOSE:To obtain the hollow yarn membrane for precision filtration having excellent water triple toric nozzles and executing two effects; cooling effect and solidification effect required for an inner solidifying liquid with separate solvents. CONSTITUTION:The two effects; cooling effect and solidification effect required for the inner solidifying liquid are executed with the separate solvents by using the triple toric nozzles for a wet process film forming method using the cooling phase sepn. of the original liquid for film formation. The hollow yarn membrane for precision filtration having holes of about 0, several 7mum on the inside and outside surfaces of the hollow yarn and having excellent water permeating performance is easily formed. Namely, the solvent discharged from the inner annular port of the triple toric nozzles induces the phase sepn. of the original liquid for film formation as the solvent for cooling so that the pores of about 0, several mum or above are formed on the inside surface of the hollow yarn. This solvent, thereafter, mixes rapidly with the solvent for solidification discharged from the central part and attains such compsn. which does not redissolve the high polymer. The hollow yarn membrane obtd. in such a manner has a high water permeation rate and the holes on the inside surface are net-like and have high porosity.

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