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    12.
    发明专利
    未知

    公开(公告)号：DE2649163A1

    公开(公告)日：1977-06-08

    申请号：DE2649163

    申请日：1976-10-28

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： KATO MASAO

    IPC: C08F8/42 ,  C07C163/00

    Abstract: A polymer or copolymer characterized in that it contains a monomer unit of the general formula: wherein R stands for a member selected from the group consisting of hydrogen atom and a phenyl group and R1 for a member selected from the group consisting of hydrogen atom and methyl group. This polymer or copolymer is produced, for example, by diazotizing a polymer or copolymer containing a monomer unit of the general formula: wherein R1 has the same meaning as given above, TO FORM A DIAZOTIZED POLYMER OR COPOLYMER CONTAINING A MONOMER UNIT OF THE GENERAL FORMULA: wherein R1 has the same meaning as given above and X stand for an anion, and then either reacting the diazotized polymer or copolymer with an alkali metal selenocyanate and subjecting the reaction product to an alkali treatment or reacting the diazotized polymer or copolymer with an alkali metal salt of a selenophenol compound.

    METHOD FOR CONTROLLING INTERACTION BETWEEN SUBSTRATE AND LIQUID CRYSTAL, AND LIQUID CRYSTAL DEVICE
    14.
    发明专利
    METHOD FOR CONTROLLING INTERACTION BETWEEN SUBSTRATE AND LIQUID CRYSTAL, AND LIQUID CRYSTAL DEVICE 失效

    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.

    NOVEL MALEIMIDE-STYRENE COPOLYMER, ITS PRODUCTION AND QUADRATIC NONLINEAR OPTICAL MATERIAL
    16.
    发明专利
    NOVEL MALEIMIDE-STYRENE COPOLYMER, ITS PRODUCTION AND QUADRATIC NONLINEAR OPTICAL MATERIAL 失效

    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.

    NEW ACRYLAMIDE POLYMER, ITS PRODUCTION AND SECONDARY NONLINEAR OPTICAL MATERIAL
    17.
    发明专利
    NEW ACRYLAMIDE POLYMER, ITS PRODUCTION AND SECONDARY NONLINEAR OPTICAL MATERIAL 失效

    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.

    NEW MALEIMIDE-STYRENE COPOLYMER, ITS PRODUCTION AND SECONDARY NONLINEAR OPTICAL MATERIAL
    18.
    发明专利
    NEW MALEIMIDE-STYRENE COPOLYMER, ITS PRODUCTION AND SECONDARY NONLINEAR OPTICAL MATERIAL 失效

    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.

    PHENYLBUTADIYNE DERIVATIVE
    19.
    发明专利
    PHENYLBUTADIYNE DERIVATIVE 失效

    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.

    MEASUREMENT OF THICKNESS BY X-RAY FOR ORGANIC THIN FILM
    20.
    发明专利
    MEASUREMENT OF THICKNESS BY X-RAY FOR ORGANIC THIN FILM 失效

    公开(公告)号：JPH02245607A

    公开(公告)日：1990-10-01

    申请号：JP6692989

    申请日：1989-03-17

    Applicant: AGENCY IND SCIENCE TECHN

    Inventor： OKADA SHUJI ,  MATSUDA HIROO ,  NAKANISHI HACHIRO ,  KATO MASAO

    IPC: G01B15/02

    Abstract: PURPOSE:To enable measurement of the thickness of a thin film in a noncontact manner with a thin film sample and handily while the thin film is being made by irradiating an organic thin film with X-rays at an angle of incidence to determine a maximal value of an intensity of X-rays at a position of an angle of reflection. CONSTITUTION:An apparatus herein used is such that is used when a normal reflection X-ray diffraction is measured and it is provided with a goniometer mechanism in which an X-ray detector is positioned in a direction of reflection angle theta, namely, in a direction of angle 2theta to incidence of X-rays when an angle of a plane of a thin film is theta with respect to a direction of incidence of X-rays. In an apparatus of such a type, theta is swept continuously to perform a recording in a relationship between an angle 2theta of the detector and a detection intensity of X rays. At this point, as some peaks are noted continuously, values of 2theta of this series of peaks are read out. Then, a film thickness is calculated using an expression II derived from a Bragg's reflection formula (formula I). In this manner, values of film thicknesses obtained for the peaks are averaged or averaged being weighted statistically to determine a film thickness.

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