公开(公告)号：JP2001030637A

公开(公告)日：2001-02-06

申请号：JP2000146980

申请日：2000-05-18

Applicant: AGENCY IND SCIENCE TECHN ,  TAMAOKI NOBUYUKI ,  MATSUDA HIROO ,  RICOH KK ,  OKAMURA OIL MILL

Inventor： FUTAMURA YOSHIROU ,  SUGIMOTO HIROYUKI ,  TAMAOKI NOBUYUKI ,  MATSUDA HIROO ,  KIDA YOSHIE

IPC: G02F1/13 ,  B41M5/26 ,  B41M5/36 ,  C09K19/02 ,  C09K19/36 ,  G02F1/133 ,  G11B7/24 ,  G11B7/244

Abstract: PROBLEM TO BE SOLVED: To permit rewriting, reduced in scattered light reflected from a recording medium, by a method wherein the crystallizing condition of a liquid crystal, in which the ratio of fore light scattering is larger compared with rear light scattering, is obtained. SOLUTION: The recording layer 3 of a reversible recording body is constituted of a liquid crystal compound or a recording material, containing the liquid crystal compound and pinched between two sheets of substrates 2, 4 wherein at least one of them is transparent, while the recording layer 3 can be formed so as to have a crystallizing condition that the strength of fore scattering is stronger than a rear scattering strength by cooling the recording material gradually from an isotropic phase or a liquid crystal phase. A reversible recording method forms the crystallizing condition, in which the fore scattering strength is stronger than the rear scattering strength, by gradually cooling the recording material of the reversible recording medium from an isotropic phase or a liquid crystal phase.

公开(公告)号：JP2000275640A

公开(公告)日：2000-10-06

申请号：JP8390199

申请日：1999-03-26

Applicant: AGENCY IND SCIENCE TECHN ,  FUKUDA TAKASHI ,  MATSUDA HIROO

Inventor： FUKUDA TAKASHI ,  MATSUDA HIROO ,  NISHIKADO TADAMORI ,  KATO MASAO

IPC: G02F1/1337

Abstract: PROBLEM TO BE SOLVED: To reversibly vary the alignment of liquid crystal molecules, according to the intensity of light by allowing a polymer of a photopholymerizable compd. which is made to be present on the inner surface of one of substrates which constitute a liquid crystal cell. SOLUTION: A polymer of a liquid crystalline compd., consisting of a coupled product of a divinyl compd. and an azobenzene compd., is made to be present on the surface of a substrate in contact with a liquid crystal. The liquid crystalline compd. is represented by CH2=C(R1)COO(CH2)nN(R2)-Ph-N=N-Ph-COO-PH- CH=CH2. In this formula, each of R1 and R2 is a hydrogen atom or 1-8C alkyl group, Ph is a paraphenylene group, and n is a number 1 to 20. The divinyl compd. has two vinyl groups in the molecule and has 1,000 mol.wt. or smaller, preferably 400 or smaller. The lower limit of the mol.wt. is about 250. The compd. expressed by the formula is preferably used. In the formula, A is a straight-chain molecular skeleton, and each of R3 to R8 is a hydrogen atom or substituent.

公开(公告)号：JP2000251317A

公开(公告)日：2000-09-14

申请号：JP4905299

申请日：1999-02-25

Applicant: AGENCY IND SCIENCE TECHN ,  TAMAOKI NOBUYUKI ,  MATSUDA HIROO ,  RICOH KK ,  OKAMURA OIL MILL

Inventor： SUGIMOTO HIROYUKI ,  FUTAMURA YOSHIROU ,  TAMAOKI NOBUYUKI ,  MATSUDA HIROO ,  KIDA YOSHIE

IPC: G11B7/244 ,  B41M5/36 ,  G11B7/24

Abstract: PROBLEM TO BE SOLVED: To improve the degree of whiteness when light is scattered with a thermosensitive recording layer which can exhibit a white display state by having the thermosensitive recording layer and a light absorption layer as well as transparent layers between the thermosensitive recording layer and the light absorption layer and constituting >=1 transparent layers of transparent material having the refractive index lower than the refractive index of the thermosensitive recording layer or the other transparent layers. SOLUTION: The one or more transparent layers consisting of the transparent material are disposed between the thermosensitive recording layer and the light absorption layer and the low-refractive index layer having the low refractive index is made to exist in these transparent layers. The base of the thermosensitive recording layer may be used as the transparent layer when the transparent material is used as the base of the thermosensitive recording layers. The transparent layers are composed of the two layers, the base layer of the high refractive index and the low-refractive index layer of the low refractive index. The cholesteric liquid crystal compound expressed by formula I and/or formula II or a mixture containing the compound is used as the thermosensitive recording material. In the equation I, n=5, 6, 7, R=H and CH3 and in the formula II, n=2 to 10.

公开(公告)号：JPH11322855A

公开(公告)日：1999-11-26

申请号：JP14213898

申请日：1998-05-08

Applicant: AGENCY IND SCIENCE TECHN ,  MATSUDA HIROO ,  FUKUDA TAKASHI

Inventor： MATSUDA HIROO ,  FUKUDA TAKASHI ,  SHIRAGAMI TAKAO ,  KATO MASAO ,  NAKANISHI HACHIRO

IPC: G02F1/35 ,  C08F8/30 ,  C08F222/40 ,  C08F232/04 ,  G02F1/355 ,  G02F1/361

Abstract: PROBLEM TO BE SOLVED: To provide a maleimide-norbornene copolymer composed of specific constituent units, capable of stably keeping the non-linear characteristics over a long period and giving a polymer material having good processability. SOLUTION: The objective copolymer is composed of (A) a constituent unit of formula I and (B) a constituent unit of formula II (R is H or methyl) and has a weight-average molecular weight of 5,000-15,000. The molar ratio of the constituent unit A to the constituent unit B is preferably 5:1 to 1:2. The copolymer can be produced by copolymerizing N-(4-hydroxyphenyl)maleimide and 2-norbornene at a molar ratio of preferably (1.2-1):1 in the presence of 0.05-5.0 wt.% of a radical polymerization initiator (e.g. acetyl peroxide) preferably at 60-80 deg.C for 10-50 hr and reacting the obtained copolymer with preferably 70-90 mol.% of a red dye of formula III using a solvent (e.g. tetrahydrofuran).

公开(公告)号：JPH1180276A

公开(公告)日：1999-03-26

申请号：JP25935597

申请日：1997-09-08

Applicant: AGENCY IND SCIENCE TECHN ,  MATSUDA HIROO ,  FUKUDA TAKASHI

Inventor： MATSUDA HIROO ,  FUKUDA TAKASHI ,  YAMADA SHINJI ,  KATO MASAO ,  NAKANISHI HACHIRO

IPC: G02F1/35 ,  C08F8/30 ,  C08F212/12 ,  C08F222/40 ,  G02F1/355 ,  G02F1/361

Abstract: PROBLEM TO BE SOLVED: To obtain a novel polymeric substance which does not show the relaxation of an aligned structure at high temperatures and having good heat stability and quadratic nonlinear optical properties by using a maleimide/styrene copolymer comprising three types of structural units having specified structures and having a specified number-average molecular weight. SOLUTION: This copolymer comprises structural units of formulas I, II and III (wherein R is H or methyl) and has a number-average molecular weight of 10,000-200,000. This is obtained by the following reactions. A mixture of N-(4-hydroxyphenyl)maleimide represented by formula I with an α-methylstyrene represented by formula II is heated to 50-100 deg.C in the presence of a radical polymerization initiator (e.g. acetyl peroxide) in a polymerization solvent (the ratio between the constituents of the mixture is in the range of 2:1 to 1:2). The obtained white solid is reacted with a red dye represented by formula IV (wherein R is H or methyl) in the presence of a condensing agent in a reaction solvent to obtain a compound comprising structural units of formulas I to III and being in the form of a reddish brown solid.

公开(公告)号：JPH10306132A

公开(公告)日：1998-11-17

申请号：JP13432297

申请日：1997-05-08

Applicant: AGENCY IND SCIENCE TECHN ,  MATSUDA HIROO ,  FUKUDA TAKASHI

Inventor： MATSUDA HIROO ,  FUKUDA TAKASHI ,  YAMADA SHINJI ,  KATO MASAO ,  NAKANISHI HACHIRO

IPC: G02F1/35 ,  C08F220/60 ,  G02F1/355 ,  G02F1/361

Abstract: PROBLEM TO BE SOLVED: To obtain a high-molecular material which undergoes controlled relaxation of an orientation structure at high temperature and has secondary nonlinear optical characteristics with good heat stability by subjecting a polymer obtained through the radical polymerization of a specified aniline derivative to diazo coupling with nitroaniline. SOLUTION: An aniline derivative of formula I (wherein R is H or methyl; and R is H, or methyl bound at a position other than the 4-position) is subjected to radical polymerization in the presence of 0.05-5.0 wt.% radical polymerization initiator at 50-100 deg.C for 10-50 hr to give a polymer having a weight-average molecular weight of 42,000 to 270,000. This polymer is subjected to diazo coupling with nitroaniline to introduce at least 20 mol.%, preferably 25-95 mol.%, azo groups, thus giving a nonlinear acrylamide polymer consisting of constituent units of formula II and those of formula II, and having a weight-average molecular weight of 50,000 to 300,000, an optimum poling temperature of 150-170 deg.C, and an initial d33 value at 80 deg.C of at least 200×10 esu.

公开(公告)号：JPH10306130A

公开(公告)日：1998-11-17

申请号：JP13433697

申请日：1997-05-08

Applicant: AGENCY IND SCIENCE TECHN ,  MATSUDA HIROO ,  FUKUDA TAKASHI

Inventor： MATSUDA HIROO ,  FUKUDA TAKASHI ,  YAMADA SHINJI ,  KATO MASAO ,  NAKANISHI HACHIRO

IPC: G02F1/35 ,  C08F212/06 ,  C08F212/08 ,  C08F212/14 ,  C08F220/52 ,  C08F222/40 ,  G02F1/355 ,  G02F1/361

Abstract: PROBLEM TO BE SOLVED: To obtain a new high-molecular material which does not show the relaxation of an orientation structure at high temperature and has secondary nonlinear optical characteristics with good heat stability by heating a mixture of N-phenylmaleimide and 4-hydroxy-α-methylstyrene in a polymerization solvent in the presence of a radical polymerization initiator and reacting the obtained copolymer with a red dye having a specified structure. SOLUTION: This material comprises a maleimide-styrene copolymer consisting of constituent units represented by formula I, those represented by formula I and those represented by formula III (wherein R is H or methyl) and having a number-average molecular weight of 10,000 to 200,000. The molar ratio of constituent units of formula I to those of formula II is (2:1) to (1:2). The radical polymerization initiator used comprises, e.g. benzoyl peroxide, which is used in an amount of 0.05-5.0 wt.% based on the total weight of monomers. The copolymerization temperature is 50-100 deg.C, and the polymerization time is 10-50 hr. The amount of the red dye introduced is 50-95 mol.%. It is obtained as a reddish brown solid with a glass transition temperature of 190 deg.C.

公开(公告)号：JPH10249186A

公开(公告)日：1998-09-22

申请号：JP6277397

申请日：1997-03-17

Applicant: AGENCY IND SCIENCE TECHN

Inventor： SHIMADA SATORU ,  TAKEDA HIROYUKI ,  ONISHI SATOMI ,  NAKANISHI FUSAE ,  MATSUDA HIROO

IPC: G03C1/73 ,  B01J19/00 ,  C23C30/00

Abstract: PROBLEM TO BE SOLVED: To impart reactivity to the ethynyl group part of an asymmetric disulfide compd. by adsorbing the disulfide compd. on the surface of gold. SOLUTION: The disulfide compd. is represented by the formula (where Ar is aryl that may have a substituent, e.g. phenyl, tolyl, xylyl, naphthyl or methylnaphthyl and the substituent is, e.g. alkoxy having about 1-6C, preferably about 1-4C lower alkyl, hydroxyl, amino or phenylethynyl). The disulfide compd. is adsorbed on the surface of gold by bringing a soln. contg. the disulfide compd. into contact with the surface of the gold. A method for dipping the gold in the soln. may be adopted as the contact method.

公开(公告)号：JPH09241627A

公开(公告)日：1997-09-16

申请号：JP5562496

申请日：1996-03-13

Applicant: AGENCY IND SCIENCE TECHN

Inventor： MIZUKAMI FUJIO ,  USHIJIMA YOJI ,  KAMATA SHUNEI ,  MURATA SHIGEO ,  FUKAYA TOSHIO ,  MATSUDA HIROO ,  OZASA TAKEHITO ,  KAWASAKI TOSHIO ,  FUJII ARIOKI ,  USUI YOSHIHARU

IPC: C09K11/06

Abstract: PROBLEM TO BE SOLVED: To simply obtain an organic solid illuminant which comprises a solid aromatic compound bearing an imino group, manifests luminous phenomenon even in the solid state and is stable and excellent in fluorescence properties. SOLUTION: This solid illuminant comprises a solid aromatic compound bearing an imino group of the formula: -C=NR (R is H, a functional group or organic group, preferably an aliphatic, aromatic, carbocyclic aromatic, heterocyclic aromatic, hydroxyl), typically N-benzylidene)methylamine, N-(naphthylidene)aniline, N-phenyl-troporone-1-imine, N-(α-methylbenzylidene) methylamine, N-phenyl-troporon-1-imine or the like. There compounds are obtained by condensation reaction between an aromatic aldehyde or an aromatic ketone and an amine.

公开(公告)号：JPH07126223A

公开(公告)日：1995-05-16

申请号：JP1792794

申请日：1994-01-17

Applicant: AGENCY IND SCIENCE TECHN ,  TODA KOGYO CORP

Inventor： MATSUDA HIROO ,  OKADA SHUJI ,  NAKANISHI HACHIRO ,  KATO MASAO ,  HORAI SHIGERU ,  HORIISHI NANAO

IPC: C07C205/06 ,  C07C211/52 ,  C08G61/00 ,  C08G61/02

Abstract: PURPOSE:To provide a new compound subject to solid polymerization with the substituents conjugated with diacetyl triple bond, useful for nonlinear optical materials, photosensitive materials, or polymeric semiconductor crystals. CONSTITUTION:The objective phenylbutadiyne derivative of formula I (one of the sites at Rs except R3 is substituted by NO2, the rest of Rs being each H), e.g. 6-(2-nitrophenyl)butadiyne, can be obtained by asymmetric coupling reaction between a phenylacetylene derivative of formula II and 4-bromo-2- methyl-3-butyne-2-ol of formula III followed by deacetonation of the resultant phenyldiacetylene derivative of formula IV using a potassium hydroxide catalyst.