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41. 发明专利

JPH0710803A 2-ARYL-2-DIFLUOROMETHYLMALONIC ACID, 2-ARYL-3,3-DIFLUOROPROPIONIC ACID AND THEIR PRODUCTION 失效
公开(公告)号：JPH0710803A
公开(公告)日：1995-01-13
申请号：JP15674093
申请日：1993-06-28
申请人： HITACHI CHEMICAL CO LTD
发明人： SAITO NORIYUKI , HONDA YUTAKA
IPC分类号： C07B53/00 , C07B61/00 , C07C51/09 , C07C51/38 , C07C57/30 , C07C57/34
摘要： PURPOSE:To obtain a new optically active 2-aryl-3,3-difluoropropionic acid useful as an intermediate raw material for electronic materials and a raw material for medicines and agrochemicals, a new 2-aryl-2-difluoromethylmalonic acid as its intermediate and a new optically inactive 2-aryl-3,3-difluoropropionic acid. CONSTITUTION:A 2-aryl-2-difluoromethylmalonic acid of formula I [Ar is (substituted)aromatic] such as 2-difluoromethyl-2-(4-methoxyphenyl)malonic acid such as 2-difluoromethyl-2-(4-methoxyphenyl)malonic acid. An optically inactive 2-aryl-3,3-difluoropropionic acid of formula II such as 2-(4- methoxyphenyl)-3,3-difluoropropionic acid. An optically active 2-aryl-3,3- difluoropropionic acid of formula III such as optically active 2- difluoromethyl-2-(4-methoxyphenyl)acetic acid. A compound of formula IV (R is hydrolyzable organic group) is hydrolyzed to give the compound of formula I. Then, this compound is decarboxylated to give the compound of formula II. The compound of formula I is reacted with a microorganism or an enzyme to give the compound of formula III.

42. 发明专利

JPH06329425A PRODUCTION OF SILICA GLASS 失效
公开(公告)号：JPH06329425A
公开(公告)日：1994-11-29
申请号：JP12365793
申请日：1993-05-26
申请人： HITACHI CHEMICAL CO LTD , TAMA KAGAKU KOGYO KK
发明人： TAKEI KOICHI , MACHII YOICHI , SHIMAZAKI TOSHIKATSU , TERASAKI HIROKI , TOMONO HIDEKUNI , HONDA YUTAKA , TAKANE NOBUAKI , OTA YOSHIRO , TAKEDA FUJIO
IPC分类号： C03B8/02 , C03B20/00 , C03C1/00
摘要： PURPOSE:To provide a method for producing silica glass in which the occurrence of cracking in a process for drying a get is suppressed. CONSTITUTION:A partial polycondensate of an alkoxysilane containing an acidic component in an amount of >=1X10 mol based on 100g partial polycondensate of the alkoxysilane is used as the partial polycondensate of the alkoxysilane in a method for producing silica glass by hydrolyzing the partial polycondensate of the alkoxysilane in the presence of a solvent, an organic polymeric compound and a basic catalyst, providing a sol, gelatinizing the resultant sol, drying the gelatinized sol, affording a dried gel, burning the gel and providing the glass.

43. 发明专利

JPH05163185A PRODUCTION OF 4-(4-HYDROXYCYCLOHEXYLIDENE) CYCLOHEXANOL COMPOUND 失效
公开(公告)号：JPH05163185A
公开(公告)日：1993-06-29
申请号：JP12466692
申请日：1992-05-18
申请人： HITACHI CHEMICAL CO LTD
发明人： KAWAKAMI MARIKO , HONDA YUTAKA , TAGUSARI TOSHINORI
IPC分类号： B01J27/135 , B01J31/04 , C07B61/00 , C07C29/143 , C07C35/21
摘要： PURPOSE:To obtain the subject compound in reduced processes more safely than by conventional methods by subjecting a hydroxycyclohexane compound to a condensation reaction in the presence of a specific titanium compound. CONSTITUTION:A 4-hydroxycylohexane compound of formula I (R is H or an inactive group such as alkyl or aryl) is subjected to a condensation reaction in the presence of a trivalent titanium compound (e.g. titanium trioxide or titanium triacetate) or titanium metal to obtain the objective compound of formula II. The reaction is preferably in an inactive solvent such as THF at the refluxing temperature. The raw material compound of formula I and the solvent are preferably perfectly dehydrated by a vacuum-drying method, etc. The separation of the objective compound from the condensation reaction solution is performed e.g. by mixing the condensation reaction solution with an alcohol, adsorbing the objective compound and by-products in the mixture with an adsorbent, separating the solid phase and subsequently eluting the objective compound from the solid phase with ethyl acetate, etc.

44. 发明专利

JPH04279546A PRODUCTION OF ALKOXY-SUBSTITUTED BENZIL COMPOUND 失效
公开(公告)号：JPH04279546A
公开(公告)日：1992-10-05
申请号：JP3986091
申请日：1991-03-06
申请人： HITACHI CHEMICAL CO LTD
发明人： TAGUSARI TOSHINORI , HONDA YUTAKA
IPC分类号： C07C45/64 , C07C49/84
摘要： PURPOSE:To provide a method for readily producing an alkoxy-substituted benzil compound, especially a benzyl compound having a >=5C long-chain alkoxy group under mild conditions. CONSTITUTION:An alkoxy-substituted benzil compound is produced by a method characterized in that a metallic salt of a 4,4'-dihydroxybenzil compound is reacted with an alkyl halide or a method characterized in that (a) 4,4'- dihydroxybenzil is reacted with (b) an alkali metal or an alkaline earth metal or hydride or hydroxide thereof and (c) the alkyl halide.

45. 发明专利

JPH0482895A DITHIOLENE TYPE ORGANIC METAL COMPLEX, PREPARATION THEREOF, BENZOIN COMPOUND AND BENZYL COMPOUND 失效
公开(公告)号：JPH0482895A
公开(公告)日：1992-03-16
申请号：JP19338790
申请日：1990-07-20
申请人： HITACHI CHEMICAL CO LTD
发明人： TAGUSARI TOSHINORI , YAMADERA TAKASHI , HONDA YUTAKA , TAKEUCHI KAZUMASA , OBATA RITSUKO
IPC分类号： C07C49/84 , C07F15/00 , C07F15/04
摘要： NEW MATERIAL:A compound of formula I (one of R , R is octadecyloxy, the other is H, halogen, alkyl, alkoxy; one of R , R is octadecyloxy, the other is H, halogen, alkyl, alkoxy; M is Ni, Pd, Pt). EXAMPLE:Bis(4-n-octadecyloxy-4'-chloro-dithiobenzyl)nickel. USE:A recording material for recording media. PREPARATION:A benzoin compound of formula II (one of R , R is octadecyloxy, the other is H, halogen, alkyl, alkoxy) or a benzyl compound of formula III (one of R , R is octadecyloxy, the other is H, halogen, alkyl, alkoxy) is reacted with a phosphorus sulfide and subsequently with the halide of a metal such as nickel, palladium or platinum or a potassium metallic acid halide.

46. 发明专利

JPH0446179A PORPHYRIN DERIVATIVE AND PRODUCTION THEREOF 失效
公开(公告)号：JPH0446179A
公开(公告)日：1992-02-17
申请号：JP15339090
申请日：1990-06-12
申请人： HITACHI CHEMICAL CO LTD
发明人： HONDA YUTAKA , YAMADERA TAKASHI , TAGUSARI TOSHINORI , TAKEUCHI KAZUMASA , OBATA RITSUKO
IPC分类号： C07D487/22
摘要： NEW MATERIAL:Porphyrin derivative expressed by formula I [Q to Q are alkyl, expressed by formula II (R is alkyl or M is H, alkali metal or alkyl containable OH); at least a species of Q to Q is expressed by formula II]. EXAMPLE:Tetrakis(2-carbomethoxyheptadecylphenyl)porphyrin. USE:Used as a coloring matter of an auxiliary (photosensitizer) for generating color development or discoloration to coloring matter co-existing by photosensing action. PREPARATION:An aromatic-substituted alkanoic acid derivative having aldehyde group expressed by formula III is reacted with pyrrole to afford the aimed porphyrin derivative expressed by formula I.

47. 发明专利

JP2002072834A METHOD FOR MANUFACTURING OPTICAL CONTROL ELEMENT BY HOLOGRAPHY, AND OPTICAL CONTROL ELEMENT 失效
公开(公告)号：JP2002072834A
公开(公告)日：2002-03-12
申请号：JP2000259214
申请日：2000-08-29
申请人： HITACHI CHEMICAL CO LTD
发明人： HOSHINO TETSUYA , SUGIMOTO YASUSHI , HONDA YUTAKA
IPC分类号： G02B5/02 , G02B5/18 , G02B5/32 , G03H1/02 , G03H1/04
摘要： PROBLEM TO BE SOLVED: To provide a material with which an optical control element (diffuser) with high diffraction efficiency can easily be manufactured only by exposure and a method for manufacturing the optical control element. SOLUTION: Resin including constitution units to be photoisomerized is holographically exposed to form unevenness corresponding to a light quantity distribution and make it the light control element (diffuser).

48. 发明专利

JPH11249145A LIQUID CRYSTAL ORIENTATION LAYER 失效
公开(公告)号：JPH11249145A
公开(公告)日：1999-09-17
申请号：JP4973698
申请日：1998-03-02
申请人： HITACHI CHEMICAL CO LTD
发明人： TERASAWA YUKI , URUNO MICHIO , MIYADERA NOBUO , HONDA YUTAKA
IPC分类号： G02F1/1337 , C08L63/00 , C08L83/12 , C08L101/00
摘要： PROBLEM TO BE SOLVED: To enhance transparency and to enable easy deposition of thick films by constituting a liquid crystal orientation layer of a three-dimensionally crosslinked resin added with a compd. having a polyoxyalkylene skeleton and imparting ability of liquid crystal orientation to the layer by rubbing. SOLUTION: The liquid crystal orientation layer, which consists of the three- dimensionally crosslinked resin added with the compd. having the polyoxyalkylene skeleton and is imparted with the ability of liquid crystal orientation by rubbing, is used. The compd. having the polyoxyalkylene skeleton is preferably siloxane having oxyalkylene side chains. The compd. having the polyoxyalkylene skeleton is added to the three-dimensionally crosslinked resin at 0.01 to 20 pts.wt. per 100 pts.wt. the resin as the amt. of addition. A resin contg. glycidyl acrylate (including glycidyl methacrylate) and its hardener is usable as the three-dimensionally crosslinked resin. Further, the hardener is at least one kind selected from trimellitic anhydride, 2,4-diaminobenzene, 4,4'- diaminostilbene, etc.

49. 发明专利

JPH11249138A LIQUID CRYSTAL ALIGNMENT LAYER 失效
公开(公告)号：JPH11249138A
公开(公告)日：1999-09-17
申请号：JP4973598
申请日：1998-03-02
申请人： HITACHI CHEMICAL CO LTD
发明人： TERASAWA YUKI , URUNO MICHIO , MIYADERA NOBUO , HONDA YUTAKA
IPC分类号： C08J5/18 , C08L83/12 , C08L101/12 , G02F1/1337
摘要： PROBLEM TO BE SOLVED: To provide liquid crystal alignment layer which has high transparency and enables easy deposition of a thick film. SOLUTION: This liquid crystal alignment layer consists of a three- dimensionally crosslinked (bridged) resin added with an amphiphilic compd. and is imparted with liquid crystal alignability by rubbing. The amphiphilic compd. is preferably siloxane having an oxyalkylene side chain. The amphiphilic compd. is added at 0.01 to 20 pts.wt. to the three-dimensionally crosslinked resin at 100 pts.wt. as the amt. of addition. A resin contg. glycidyl acrylate (including glycidyl methacrylate) and its hardener is usable as the three- dimensionally crosslinked resin. Further, the hardener is at least one kind selected from trimellitic anhydride, 2,4-diaminobenzene, 4,4'-diaminostilbene, and magneson.

50. 发明专利

JPH11101909A COLOR FILTER 失效
公开(公告)号：JPH11101909A
公开(公告)日：1999-04-13
申请号：JP1898298
申请日：1998-01-30
申请人： HITACHI CHEMICAL CO LTD
发明人： TERASAWA YUKI , MIYADERA NOBUO , HONDA YUTAKA
IPC分类号： G02B5/20 , G02F1/1333 , G02F1/1335 , G02F1/1337
摘要： PROBLEM TO BE SOLVED: To obtain a color filter having an overcoat layer (OC) which can orient a liquid crystal by rubbing, by adding a liquid crystal orienting ability to a protective film. SOLUTION: The liquid crystal orienting ability is imparted by rubbing an OC of a color filter for a color liquid crystal display device. Namely, this color filter consists of a transparent substrate 2, specified pixel groups 3 formed on the transparent substrate 2, and a protective film 4 formed on the specified pixel groups 3. The protective film 4 has liquid crystal orienting ability. In this case, a three-dimensionally crosslinked resin is preferably used for the protective film 4. In the production of the color filter above described, after the OC is formed, the surface of the OC is subjected to rubbing to give liquid crystal orienting ability. The rubbing treatment is carried out, for example, by using a velvet rubbing cloth such as nylon and rayon wound on a roller and bringing the rotating roller surface into contact with the OC surface to rub. Thus, the liquid crystal molecules are oriented.

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