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1. 发明专利

JP2002071959A METHOD FOR MANUFACTURING LIGHT CONTROLLING ELEMENT BY HOLOGRAPHY AND LIGHT CONTROLLING ELEMENT 失效
公开(公告)号：JP2002071959A
公开(公告)日：2002-03-12
申请号：JP2000263271
申请日：2000-08-31
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 such a material from which an element with high diffraction efficiency, particularly a diffusing body can be easily manufactured only by exposing, and to provide a method for manufacturing the element. SOLUTION: A resin containing such structural unit that can produce photoisomers and shows dichroism is holographically exposed to form recesses and projections corresponding to the distribution of the light quantity. The obtained resin body is used as the light controlling element.

2. 发明专利

JP2001051310A OPTICAL MODULATION METHOD AND OPTICAL MODULATOR 失效
公开(公告)号：JP2001051310A
公开(公告)日：2001-02-23
申请号：JP22284699
申请日：1999-08-05
申请人： HITACHI CHEMICAL CO LTD
发明人： HONDA YUTAKA , YATAGAI TOYOHIKO , ITO MASAHIDE , HARADA KENJI
IPC分类号： G02F1/061 , G02F1/35 , G02F1/361
摘要： PROBLEM TO BE SOLVED: To obtain a method of optical modulation with large modulation efficiency and an optical modulator by modulating light in the maximum absorption wavelength region of a nonlinear optical material. SOLUTION: Light is modulated in the maximum absorption wavelength region of a nonlinear optical material. The maximum absorption wavelength region is determined by the structure of a nonlinear optical material, and a wavelength region shorter than the cutoff wavelength of the material is used. The light is modulated by allowing the light to enter in a film thickness direction of the nonlinear optical material. As for the transmission type modulation method (a), the light propagates once in the nonlinear optical material. In the optical modulation method (b) using the reflected light from a reflection film, the light propagates twice in the nonlinear optical material, which improves the modulation efficiency. As for the reflection film, the metal film such as aluminum gold and copper, dyes or the like having difference in a refractive index from a transmission medium can be used. As for the nonlinear optical material, any material can be used as far as electron donating functional groups and electron withdrawing functional groups are connected by an electron resonance system. The electron resonance system consists of one or more cyclic unsaturated groups and/or unsaturated groups.

3. 发明专利

JPH11249146A LIQUID CRYSTAL ORIENTATION LAYER 失效
公开(公告)号：JPH11249146A
公开(公告)日：1999-09-17
申请号：JP4973798
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 , C08L83/04 , 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 polysiloxane 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 polysiloxane skeleton and is imparted with the liquid crystal orientateability by rubbing, is used. The compd. having the polysiloxane skeleton is preferably siloxane having oxyalkylene side chains. The compd. having the polysiloxane 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'-diaminostibene, etc.

4. 发明专利

JPH1152386A LIQUID CRYSTAL ORIENTING FILM 失效
公开(公告)号：JPH1152386A
公开(公告)日：1999-02-26
申请号：JP20594397
申请日：1997-07-31
申请人： HITACHI CHEMICAL CO LTD
发明人： TERASAWA YUKI , MIYADERA NOBUO , HONDA YUTAKA
IPC分类号： G02F1/1337 , C08F20/32
摘要： PROBLEM TO BE SOLVED: To easily form a thick film with high transparency by using a three- dimensional crosslinking resin to form a film and giving liquid crystal orientating ability to the film by rubbing. SOLUTION: The liquid crystal orienting film is produced by dissolving a three-dimensional crosslinking resin in an org. solvent to prepare a liquid crystal orienting film material, applying the obtd. material on a substrate, and successively subjecting to predrying, hardening and rubbing treatment. As for the three-dimensional crosslinking resin, a resin containing glycidylacrylate (including glycidyl methacrylate) and its hardening agent is used. As for the hardening agent, at least one compd. selected from trimellitic acid anhydride, 2,4- diaminoazobenzene, 4,4'-diaminostilbene and magneson is used. The rubbing treatment is carried out by using a roller with a nylon or rayon cloth wound and rubbing the surface of the orienting film. Thereby, orientation of liquid crystal molecules is obtd.

5. 发明专利

JPH08165270A OPTICALLY ACTIVE 2-SUBSTITUTED CARBOXYLIC ACID DERIVATIVE, INTERMEDIATE AND PRODUCTION THEREOF 失效
公开(公告)号：JPH08165270A
公开(公告)日：1996-06-25
申请号：JP30890894
申请日：1994-12-13
申请人： HITACHI CHEMICAL CO LTD
发明人： SAITO NORIYUKI , HONDA YUTAKA
IPC分类号： C07D239/26 , C07B53/00 , C07C67/18 , C07C69/65 , C07C69/736 , C07D231/56
摘要： PURPOSE: To provide a novel optically active 2-substituted carboxylic acid deriva tive which is useful as a starting substance for ferroelectric liquid crystals, medicines and agrochemicals. CONSTITUTION: This optically active 2-substituted carboxylic acid derivative is represented by formula I [R1 is an alkyl, a (substituted) aryl; R2 is an alkyl substituted with 2 or more halogen atoms; R3 is H, an alkyl], for example, the compound of formula II. The compound of formula I is obtained by reaction of an optically active 2-(2-substituted acyl)menthopyrazole derivative of formula III [Ar is a (substituted) aryl] with a compound of the formula: HO-R3 [R3 is H, a (substituted) alkyl] in the presence of an acidic reagent. The compound of formula III, a synthetic intermediate for the compound of formula I, is obtained by reaction of an optically active 2-acylmenthopyrazole derivative of formula IV with a metal salt-forming agent and a halogenoalkylation agent or a halogenoalkyl group-introducing agent.

6. 发明专利

JPH08127556A NOVEL OPTICALLY ACTIVE DIFLUOROMETHYL COMPOUND, LIQUID CRYSTAL COMPOSITION CONTAINING THE SAME AND OPTICAL SWITCHING ELEMENT 失效
公开(公告)号：JPH08127556A
公开(公告)日：1996-05-21
申请号：JP23610694
申请日：1994-09-30
申请人： HITACHI CHEMICAL CO LTD
发明人： HONDA YUTAKA , SAITO NORIYUKI , KAWAKAMI MARIKO
IPC分类号： G02F1/13 , C07C43/174 , C07C43/225 , C07C69/708 , C07C69/86 , C07C69/92 , C07C69/94 , C07D213/79 , C07D237/14 , C07D239/34 , C07D241/18 , C09K19/12 , C09K19/20 , C09K19/34
摘要： PURPOSE: To obtain a novel compound which has chiral smectic C phase and is useful as a ferroelectric liquid crystal material and element. CONSTITUTION: This compound is represented by the formula (A, B are each a difunctional ring group or a single bond; W, X, Y are each a single bond, O, COO, CH2 O; Z is COO, CH2 O; R , R are each a 1-20C alkyl, acyl, alkyloxyalkyl; R is H, methyl, a halogen; C* means an optically active asymmetric carbon atom), for example, 4-[(R)-1-difluoromethyl-2- butoxyethyl]phenyl-4-(4-octylphenyl) benzoate. The compound of the formula is obtained by reaction between, for example, 4-(R)-1-difluoromethyl-2- hexyloxyethyl]-4'--hydroxybiphenyl, (*)-2-pentyloxypropionic acid, and N,N- dimethylaminopyridine in anhydrous chloroform in the presence of N,N'- dlisopropylcarbodiimide under the light-shielded conditions. This compound is useful as a light-switching element in the fields relating to the optoelectronics such as a display or a light printer head.

7. 发明专利

JPH05306258A 失效
公开(公告)号：JPH05306258A
公开(公告)日：1993-11-19
申请号：JP10340192
申请日：1992-04-23
申请人： HITACHI CHEMICAL CO LTD
发明人： HONDA YUTAKA
IPC分类号： C07C67/00 , C07C49/84 , C07C69/734 , C07D317/24 , C07D319/06 , C07D321/04
摘要： PURPOSE:To obtain a new compound useful as an optical recording material, liquid crystal material, medicine such as anti-inflammatory analgesic, pyrethroid insecticide, etc. CONSTITUTION:A compound of formula I (R and R are alkyl; A is bifunctional hydrocarbon) such as 3-hydroxypropyl(S)-2-[4-tertiary butyloxymethyl) phenyl]propionate. The compound of formula I is obtained by subjecting an optical active aromatic substituted sulfonic acid ester derivative of formula II (R is alkyl or aryl; group containing A is cyclic acetal comprising 5 to 7-membered ring) to thermal rearrangement reaction in the presence of water and a base (e.g. sodium acetate) in an organic solvent (e.g. dioxane) at >=70 deg.C. The compound of formula I contains an alkyloxymethyl group in the aromatic ring and another functional group such as aldehyde group can be introduced to the compound by taking advantage of the alkyloxymethyl group.

8. 发明专利

JPH0421675A AROMATIC GROUP-SUBSTITUTED ALKANOIC ACID COMPOUND, ITS INTERMEDIATE AND PRODUCTION THEREOF 失效
公开(公告)号：JPH0421675A
公开(公告)日：1992-01-24
申请号：JP12752790
申请日：1990-05-17
申请人： HITACHI CHEMICAL CO LTD
发明人： HONDA YUTAKA , YAMADERA TAKASHI , TAGUSARI TOSHINORI , TAKEUCHI KAZUMASA , OBATA RITSUKO
IPC分类号： C07D317/12 , B01J31/02 , B01J31/08 , C07B61/00 , C07D317/46 , C07D319/06 , C07D319/08 , C07D321/10 , C07D325/00
摘要： NEW MATERIAL:A compound expressed by formula I (the ring containing (A) is composed of 5- to 7-membered ring and a cyclic acetal which may contain a substituent group or a condensed ring; (A) is bifunctional hydrocarbon group for constructing the aforementioned cyclic acetal; R is alkyl; M is H, alkali metal or alkyl which may have hydroxyl). EXAMPLE:Methyl 2-[p-(5,5-dimethyl-1,3-dioxan-2-yl)phenyl]stearate. USE:Useful as a raw material for producing optical recording materials, liquid crystal material, medicines such as anti-inflammatory and analgesic agents and agricultural chemicals such as pyrethroid-based agricultural chemicals. PREPARATION:An aromatic haloacetal compound expressed by formula II (R and R are alkyl or R , and R are linked to form a bifunctional hydrocarbon which may have a substituent group or a condensed ring, etc.; X is halogen) is subjected to thermal rearrangement and eliminating reaction in the presence of water and a dehalogenating reagent to afford the compound expressed by formula I.

9. 发明专利

JP2002338693A DENDRIMER HAVING ALKOXYSILYL GROUP AT BRANCHED TERMINAL 失效
公开(公告)号：JP2002338693A
公开(公告)日：2002-11-27
申请号：JP2001147364
申请日：2001-05-17
申请人： HITACHI CHEMICAL CO LTD
发明人： MATSUTANI HIROSHI , HONDA YUTAKA
IPC分类号： C08G85/00
摘要： PROBLEM TO BE SOLVED: To provide a method for obtaining a dendrimer having an alkoxysilyl group at a branched terminal in a short period of time, and 'the dendrimer having an alkoxylsilyl group at a branched terminal' to be obtained by the method. SOLUTION: The method comprises reacting a dendrimer (a substrate dendrimer) having an active hydrogen such as a primary amino group, a secondary amino group, a hydroxyl group, a carboxyl group, and a thiol group at a branced terminal with an alkoxysilane (a reaction reagent) having an isocyanate group to form a dendrimer (a modified dendrimer) having any one of terminals of formulae (a) to (f) (wherein n is 0 or 1; G is a divalent organic group; R and R are each a 1-8C alkyl group which may be substituted or a phenyl group; and R is a 1-3C alkyl group or an alkanoyl group).

10. 发明专利

JP2002128888A CURING COMPOSITION, CURING METHOD AND CURED PRODUCT PREPARED BY THE METHOD 失效
公开(公告)号：JP2002128888A
公开(公告)日：2002-05-09
申请号：JP2000330724
申请日：2000-10-30
申请人： HITACHI CHEMICAL CO LTD
发明人： MATSUTANI HIROSHI , HONDA YUTAKA , SATO KAZUYA , KATOGI SHIGEKI , NISHIYAMA SHINNO
IPC分类号： C08G65/26
摘要： PROBLEM TO BE SOLVED: To provide a curing composition, a curing method of the composition and a cured product prepared by the method, which solve the conventional problems, deterioration of physical properties of the cured product due to a residual monomer and exuding or scattering out of a residual monomer from the cured product, that occur when a cyclic ether compound and a cationically polymerizable compound having ethylenically unsaturated bonds are copolymerized, and consequently the cationically polymerizable residual monomer having an ethylenically unsaturated bond remains unreacted in the cured product or the polymerized product. SOLUTION: The curing composition consists of: (A) a cationically- polymerizable compound having an ethylenically unsaturated bond; (B) a compound having a cyclic ether structure; (C) a compound having a hydroxy group in a molecule; and (D) a cationic polymerization catalyst. In the method of curing, the curing composition provided is either heated or irradiated with activation light at the temperature range of 50 to 200 deg.C for 0.1 second to 50 hours. The cured product is prepared by the method provided.

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