Vapor deposited electro-optic films self-assembled through hydrogen bonding
    66.
    发明申请
    Vapor deposited electro-optic films self-assembled through hydrogen bonding 审中-公开
    气相沉积电光膜通过氢键自组装

    公开(公告)号:US20080171146A1

    公开(公告)日:2008-07-17

    申请号:US11982979

    申请日:2007-11-06

    CPC classification number: C09B23/0066 C07D403/10 G02F1/3612

    Abstract: The present invention introduces a novel route toward microstructural orientation into organic films, using multiple hydrogen-bonding to self-assemble chromophore molecules into electro-optic films in a net polar orientation. High-quality, thick films (up to micrometers) with molecular net dipole orientations can be fabricated under vacuum in hours. The film microstructure is intrinsically acentric; and the orientation is robust.

    Abstract translation: 本发明引入了一种朝向微结构取向成有机薄膜的新途径,使用多个氢键将发色团分子自组装成具有净极性取向的电光薄膜。 可以在数小时内在真空下制造具有分子网络偶极取向的高品质,厚膜(至多微米)。 膜微观结构本质上是中心的; 方向稳健。

    Cyclopentadienyl-containing low-valent early transition metal olefin polymerization catalysts
    67.
    发明授权
    Cyclopentadienyl-containing low-valent early transition metal olefin polymerization catalysts 失效
    含环戊二烯基的低价早期过渡金属烯烃聚合催化剂

    公开(公告)号:US06747112B2

    公开(公告)日:2004-06-08

    申请号:US10324734

    申请日:2002-12-19

    Abstract: A catalyst system useful to polymerize and co-polymerize polar and non-polar olefin monomers is formed by in situ reduction with a reducing agent of a catalyst precursor comprising {Cp*MRR′n}+{A}− wherein Cp* is a cyclopentadienyl or substituted cyclopentadienyl moiety; M is an early transition metal; R is a C1-C20 hydrocarbyl; R′ are independently selected from hydride, C1-C20 hydrocarbyl, SiR″3, NR″2, OR″, SR″, GeR″3, SnR″3, and C═C-containing groups (R″=C1-C10 hydrocarbyl); n is an integer selected to balance the oxidation state of M; and A is a suitable non-coordinating anionic cocatalyst or precursor. This catalyst system may form stereoregular olefin polymers including syndiotactic polymers of styrene and methylmethacrylate and isotactic copolymers of polar and nonpolar olefin monomers such as methylmethacrylate and styrene.

    Abstract translation: 通过用包含Cp *是环戊二烯基或取代的环戊二烯基部分的催化剂前体的还原剂进行原位还原来形成可用于聚合和共聚极性和非极性烯烃单体的催化剂体系; M是早期过渡金属; R是C1-C20烃基; R'独立地选自氢化物,C 1 -C 20烃基,SiR''3,NR''2,OR“,SR”,GeR'3,SnR'3和C =含C的基团(R '= C1-C10烃基); n是选择以平衡M的氧化态的整数; 而A是合适的非配位阴离子助催化剂或前体。 该催化剂体系可以形成包含苯乙烯和甲基丙烯酸甲酯的间同立构聚合物的立构规环烯烃聚合物,以及极性和非极性烯烃单体如甲基丙烯酸甲酯和苯乙烯的全同立构共聚物。

    High-response electro-optic modulator based on an intrinsically acentric, layer-by-layer self-assembled molecular superlattice
    68.
    发明授权
    High-response electro-optic modulator based on an intrinsically acentric, layer-by-layer self-assembled molecular superlattice 失效
    基于本征中心,逐层自组装分子超晶格的高响应电光调制器

    公开(公告)号:US06549685B2

    公开(公告)日:2003-04-15

    申请号:US09773724

    申请日:2001-01-31

    CPC classification number: B82Y30/00 B82Y10/00 G02F1/065

    Abstract: A new electro-optic (EO) phase modulator constructed from a combination of a low-loss passive polymer waveguide and a self-assembled chromophore superlattice (SAS) with an intrinsically polar microstructure. In contrast to typical polymer-based modulators, the present invention utilizes a siloxane SA methodology that enables the acentric alignment of constituent chromophores during film growth without the need for post-deposition electric field poling. The guiding layer is constructed of the SAS and the glassy polymer Cyclotene™. The use of SiO2, Cytop™ and Cyclotene™ glassy polymers, results in a straightforward device fabrication process that is compatible with the thermally and photochemically robust SAS. Thus, nanoscale control of the film architecture results in greatly simplified macroscopic device fabrication. The present invention provides a SAS-based electro-optic modulator demonstrating excellent electro-optic response properties and a &pgr; phase shift.

    Abstract translation: 由低损耗无源聚合物波导和具有固有极性微结构的自组装发光团超晶格(SAS)的组合构成的新的电光(EO)相位调制器。 与典型的基于聚合物的调节剂相反,本发明使用硅氧烷SA方法,其能够在膜生长期间能够进行组分发色团的定向配位,而不需要后沉积电场极化。 引导层由SAS和玻璃状聚合物Cyclotene TM构成。 使用SiO 2,Cytop TM和Cyclotene TM玻璃状聚合物可形成与热和光化学稳健的SAS相容的简单的器件制造工艺。 因此,膜结构的纳米尺度控制导致宏观器件制造的大大简化。 本发明提供了一种基于SAS的电光调制器,其表现出优异的电光响应特性和pi相移。

    Treatment of a composition comprising a trimethylolalkane bis-monolinear formal
    70.
    发明授权
    Treatment of a composition comprising a trimethylolalkane bis-monolinear formal 有权
    包含三羟甲基烷烃双 - 单变体形式的组合物的处理

    公开(公告)号:US06316679B1

    公开(公告)日:2001-11-13

    申请号:US09579743

    申请日:2000-05-26

    CPC classification number: C07D319/06

    Abstract: A process for treating a composition containing a substantial proportion of trimethyflolpropane bis-monolinear formal (TMP-BMLF) or trimethylolethane bis-monolinear formal (TME-BMLF), e.g., a heavy ends residue obtained from the purification of a crude trimethylolpropane (TMP) or trimethylolethane (TME) product, wherein the composition is contacted at an elevated temperature with a strong acid catalyst, e.g., methanesulfonic acid, to produce a composition containing significantly increased amounts of TMP and trimethylolpropane monocyclic formal (TMP-MCF) or TME and trimethylolethane monocyclic formal (TME-MCF) respectively. Also disclosed is a process for reacting TMP-MCF or TME-MCF, either in substantially pure form or as present in the light ends overhead stream obtained in a finishing treatment of crude TMP or TME, with a monohydric or dihydric alcohol, e.g., ethylene glycol, in the presence of a strong acid catalyst to obtain additional TMP or TME and an acetal by-product, e.g., 1,3-dioxolane; and a process for directly reacting the TMP-BMLF or TME-BMLF present in a composition, e.g., the heavy ends residue obtained in the purification of TMP or TME, with a monohydric or dihydric alcohol, e.g., ethylene glycol, in the presence of a strong acid to obtain additional TMP or TME and an acetal by-product, e.g., 1,3-dioxolane.

    Abstract translation: 一种用于处理含有大量比例的三甲基十四烷丙基双 - 单体形式(TMP-BMLF)或三羟甲基乙烷双 - 单体形式(TME-BMLF)的组合物的方法,例如从纯化三羟甲基丙烷(TMP)得到的重馏分残余物, 或三羟甲基乙烷(TME)产物,其中组合物在高温下与强酸催化剂(例如甲磺酸)接触以产生含有显着增加量的TMP和三羟甲基丙烷单环形式(TMP-MCF)或TME和三羟甲基乙烷的组合物 单体形式(TME-MCF)。 还公开了一种使TMP-MCF或TME-MCF以基本纯的形式或存在于在粗TMP或TME的整理处理中获得的轻馏分塔顶馏出物与一元或二元醇(例如乙烯 乙二醇,在强酸催化剂存在下,得到另外的TMP或TME和缩醛副产物,例如1,3-二氧戊环; 以及将组合物中存在的TMP-BMLF或TME-BMLF直接反应的方法,例如在TMP或TME纯化中获得的重馏分残基与一元或二元醇(例如乙二醇)在存在下 强酸以获得额外的TMP或TME和缩醛副产物,例如1,3-二氧戊环。

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