Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1993-04-30
1994-03-01
Krass, Frederick
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525533, 528 96, 528104, 528206, 528208, 528210, 528220, 528229, 528321, 528327, 528361, 528365, 528367, 528369, 528377, 528391, 528403, 528407, 549551, 549553, 25229961, C08G 5900, C08G 6508, C08G 6514
Patent
active
052908879
ABSTRACT:
Epoxy resins containing more than one vicinal epoxide group per molecule and at least one thiadiazole, oxadiazole or both thiadiazole and oxadiazole moiety per molecule are disclosed, as well as curable and cured compositions thereof. Certain of these epoxy resins possess enantiotropic liquid crystallinity. These enantiotropic epoxy resins are useful in preparing copolymers with high glass transition temperatures and liquid crystalline morphology, which can result in enhanced unidirectional mechanical properties. These epoxy resins are useful in coating, casting, encapsulation, electronic or structural laminate or composite, filament winding or molding applications.
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Derwent Abstracts: 116:58641q, "The dependence of the spontaneous polarization on the Molecular Structure", Lindstroem, B.; Kresse, H.; Demus, D.; Tschierski, C.; Joachimi, D.
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Derwent Abstracts: 115:256184K, "Preparation of optically active thiadiazole compounds as liquid crystal compositions", Nohira, Hiroyuki; Nakamura, Shinichi; Yamada, Yoko; Takiguchi, Takao; Iwaki, Takashi, Tokano, Goji (Canon K.K).
Derwent Abstracts: 116:129931x, "Polyether-poly(1,3,4-oxidazoles) from bis(hydroxyphenyl)-1,3,4-oxadiazoles", Connell, John W.; Hergenrother, Paul M.; Wolf, Peter.
Derwent Abstracts: 113:211992q, 2,5-Bis(4-(4-aminophenyl)phenyl]-1,3,4,-oxidazole as material for azo dyes and functional polymers, Yamada, Yasuyuki; Ito, Naoto; Nishizawa, Isao; Yamaguchi, Teruhiro (Mitsui Toatsu Chemicals, Inc.).
Derwent Abstracts: 115:21989u, "Mesomorphic compounds for liquid crystal compositions for display devices", Iwaki, Takashi; Takiguchi, Takao; Nakamura, Shinichi; Yamada, Toko; Togano, Takeshi; Mori Shosei (Canon K.K.).
Derwent Abstracts: 115:49520b, "Synthesis of semicarbazones, oxadiazoles and evaluation of their different properties", Chudgar, N. K.; Shah, S. N.; Bapat, Sangita (Dep. Chem., M.S. Univ. Baroda, Baroda, 390002 India.) J. Inst. Chem. (India) 1990, 62(5), 185-186 (Eng.).
Derwent Abstracts: 116:13794a, "Liquid-crystal mixtures having extended smectic phases", Tschierske, Carsten; Girdziunaite, D.; Zaschke, Horst; Heinemann, Susanne; Kresse, Horst; Demus, Dietrich (Martin-Luther-Universitaet Halle-Wittenberg) Ger. (East) DD 292,267.
Derwent Abstracts: 115:185230j, "IR-spectroscopy study of structural and phase transformations in poly(p-phenylene-1,3,4-oxidiazole) fibers under thermal actio", Belousova, T. A.; Romanko, O. I.; Kalashnik, A. T.; Banduryan, S. I.; Okromchedlidze, N. P.; Semenova, A. S.
Derwent Abstracts 116:72473t, "Electrically controlled birefringence effect-based liquid crystal compositions containing thiadiazole derivatives", Krause, Joachim; Geelhaar, Thomas; Hittich, Reinhard, Finkenzeller, Ulrich; Weber, Georg; Rieger, Bernhard (Merck Pat. G.m.b.H.).
Derwent Abstracts: 116 :162630w, "Liquid-crystal compounds and compositions and devices using them"; Nakamura, Shinichi; Yamada, Yoko; Nohira, Hiroyuki; Takiguchi, Takao; Iwaki, Takashi; Togano, Takeshi (Canon K.K.) Eur. Pat. Appl. EP 435,106.
Derwent Abstracts: 115:171041m, "Mesomorphic compounds for liquid crystal compositions for display devices", Nakamura, Shinichi; Takiguchi, Takao; Iwaki, Takashi; Togano, Takeshi; Yamada, Yoko; Mori, Shosei (Canon K.K.) Ger. Offen. DE 4,021,811.
Derwent Abstracts: 115:123933g, "Liquid crystal compositions for display devices", Togano, Takeshi; Takiguchi, Takao; Iwaki, Takashi; Yamada, Yoko; Nakamura, Shinichi; Mori, Shosei (Canon K.K) Ger. Offen. DE 4,024,190 (Cl. C09K 19/06), Feb. 7, 1991, JP.
Derwent Abstracts: 116:162662h, "Mesmorphic compound and liquid-crystal composition, device display apparatus, and display method using it", Takiguchi, Takao; Iwaki, Takashi; Togano, Takeshi; Yamada, Yoko; Nakamura, Shinichi (Canon K.K.) Eur. Pat. Appl. 455,219.
Derwent Abstracts: 115:171041m, "Mesomorphic compounds for liquid crystal compositions for display devices," Nakamura, Shinichi; Takiguchi, Takao; Iwaki, Takashi; Togano, Takeshi; Yamada, Yoko; Mori, Shosei (Canon K.K.) Ger. Offen. DE 4,021,811.
Derwent Abstracts: 115:49520b, "Synthesis of semicarbazones, oxadiazoles and evaluation of their different properties", Chudgar, N. K.; Shah, S. N.; Bapat, Sangita (Dep. Chem., M.S. Univ. Baroda, Baroda, 390 002 India). J. Inst. Chem. (India) 1990, 62(5), 185-6 (Eng.).
Derwent Abstracts: 113:115189n, "Liquid crystalline, 1,3,4-thiadiazoles, II, 1,3,4-Thiadiazoles with cyclohexane fragments", Schaefer, W.; Rosenfeld, U.; Zaschke, H.; Stettin, H.; Kresse, H. (Sekt. Chem., Martin-Luther-Univ., DDR-4010 Halle/Saale, Ger. Dem. Rep.). J. Prakt. Chem. 1989.
Derwent Abstracts: 115:124294m, "Liquid crystal composition having extended smectic C phase range", Zaschke, Horst; Girdziunaite, D.; Paschke, Reinhard; Kresse, Horst; Tschierske, Carsten; Demus, Dietrich; Linstroem, Brita (Martin-Luther-Universitaet Halle-Wittenberg).
Derwent Abstracts: 115:124299s, "Preparation of 1,3,4-thiadiazole derivatives as liquid crystals and their compositions for liquid crystal devices", Mori, Yoshimasa; Yamada, Yoko; Tokanai, Goji; Takiguchi, Takao; Iwaki, Takashi; Nakamura Shinichi (Canaon K.K.).
Derwent Abstracts: 115:219576u, "New mesogenic 1,3,4-oxadiazole derivatives", Girdziunaite, Dalia; Tschierske, Carsten; Novotna, Eva; Kresse, Horst; Hetzheim, Annemarie (Sekt. Chem., Martin-Luther Univv. Halle Wittenbert, O-4010 Halle/Saale, Fed. Rep. Ger.), Liq. Cryst. 1991.
Dewent Abstracts: 115:124295n, "Liquid crystal composition having extended smectic C phase range and negative dielectric anisotopy", Paschke, Reinhard; Zaschke, Horst; Tschierske, Carsten; Kresse, Horst; Demus, Dietrich (Martin-Luther-Universitaet Halle-Wittenberg).
Derwent Abstracts: 115:147203v, "Preparation of thiadiazole derivative liquid crystals", Tokano, Goji; Iwaki, Takashi; Takiguchi, Takao; Yamada, Yoko; Mori, Yoshimasa (Canon K.K.), Jpn. Kokai Tokyo Koho JP 03 17,074 [91 17,074] (Cl. C07D285/12), Jan. 25, 1991, Appl. 89/152,591, Jun. 14, 1989; pp. 34 Thiadiazole derivs.
Earls Jimmy D.
Hefner, Jr. Robert E.
Schomaker Joseph A.
Krass Frederick
The Dow Chemical Company
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