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    Liquid crystal formulations and structures for smectic A optical devices
    1.
    发明授权
    Liquid crystal formulations and structures for smectic A optical devices 有权
    用于近晶A光学器件的液晶配方和结构

    公开(公告)号：US08956548B2

    公开(公告)日：2015-02-17

    申请号：US13635334

    申请日：2011-03-15

    Applicant: Terry Victor Clapp ,  William Alden Crossland ,  Anthony Bernard Davey ,  Martin Grasmann ,  Jonathan Paul Hannington ,  Russell Keith King ,  Mikhael Pivnenko ,  Steven Robson ,  Huan Xu

    Inventor： Terry Victor Clapp ,  William Alden Crossland ,  Anthony Bernard Davey ,  Martin Grasmann ,  Jonathan Paul Hannington ,  Russell Keith King ,  Mikhael Pivnenko ,  Steven Robson ,  Huan Xu

    IPC: C09K19/04 ,  C09K19/38 ,  C09K19/54 ,  C09K19/58 ,  C09K19/60 ,  G02F1/137 ,  C09K19/40 ,  C09K19/42 ,  C09K19/52

    CPC classification number: C09K19/60 ,  C09K19/406 ,  C09K19/408 ,  C09K19/42 ,  C09K19/52 ,  C09K19/54 ,  C09K19/58 ,  C09K2019/0444 ,  G02F1/13781

    Abstract: The present, invention relates to liquid crystal compositions having a smectic A structure for use in an optical device in which the composition is sandwiched between a pair of electrodes (12-15). In essence the composition includes a siloxane oligomer (component (a)) which may be seen to construct a layered SmA system of particular spacing and “strength”. Within this structure a low molar mass nematic mesogen (component (c)) is provided that may be considered to be that of a “plasticiser” which moderates the layer “strength”, while simultaneously providing tuneability to the properties of the composition, e.g. its refractive index or dielectric anisotropy. The addition of a side chain liquid crystal polysiloxane (component (d)) allows such systems to be further moderated since they can be considered as binding together the la>¾rs, both within a given layer and between layers. An ionic dopant (component (b)) is also included in the composition that migrates through the composition when low frequency electric fields are applied to the composition by the electrodes, thereby disrupting the order to the composition. Order in the composition can be restored by applying a higher frequency field that does not allow the dopant time to migrate significantly. Chromophores may also be included in the formulation.

    Abstract translation: 本发明涉及具有将组合物夹在一对电极（12-15）之间的光学装置中使用的具有近晶A结构的液晶组合物。 本质上该组合物包括硅氧烷低聚物（组分（a）），其可以被看作构建具有特定间距和“强度”的层状SmA体系。 在该结构中，提供了低摩尔质量向列型介晶（组分（c）），其可以被认为是调节层“强度”的“增塑剂”，同时为组合物的性质提供可调性，例如。 其折射率或介电各向异性。 侧链液晶聚硅氧烷（组分（d））的添加允许这种体系进一步缓和，因为它们可以被认为在给定层内和层之间结合在一起。 当通过电极将低频电场施加到组合物上时，离子掺杂剂（组分（b））也包括在组合物中迁移通过组合物，从而破坏组合物的顺序。 可以通过施加不允许掺杂剂时间显着迁移的较高频率场来恢复组合物中的顺序。 发色团也可以包括在制剂中。

    Liquid Crystal Formulations And Structures For Smectic A Optical Devices
    2.
    发明申请
    Liquid Crystal Formulations And Structures For Smectic A Optical Devices 有权
    液晶配方和结构光电器件

    公开(公告)号：US20130155340A1

    公开(公告)日：2013-06-20

    申请号：US13635334

    申请日：2011-03-15

    Applicant: Terry Victor Clapp ,  William Alden Crossland ,  Anthony Bernard Davey ,  Martin Grasmann ,  Jonathan Paul Hannington ,  Russell Keith King ,  Mikhael Pivnenko ,  Steven Robson ,  Huan Xu

    Inventor： Terry Victor Clapp ,  William Alden Crossland ,  Anthony Bernard Davey ,  Martin Grasmann ,  Jonathan Paul Hannington ,  Russell Keith King ,  Mikhael Pivnenko ,  Steven Robson ,  Huan Xu

    IPC: C09K19/60 ,  C09K19/58 ,  G02F1/137

    CPC classification number: C09K19/60 ,  C09K19/406 ,  C09K19/408 ,  C09K19/42 ,  C09K19/52 ,  C09K19/54 ,  C09K19/58 ,  C09K2019/0444 ,  G02F1/13781

    Abstract: The present, invention relates to liquid crystal compositions having a smectic A structure for use in an optical device in which the composition is sandwiched between a pair of electrodes (12-15). In essence the composition includes a siloxane oligomer (component (a)) which may be seen to construct a layered SmA system of particular spacing and “strength”. Within this structure a low molar mass nematic mesogen (component (c)) is provided that may be considered to be that of a “plasticiser” which moderates the layer “strength”, while simultaneously providing tuneability to the properties of the composition, e.g. its refractive index or dielectric anisotropy. The addition of a side chain liquid crystal polysiloxane (component (d)) allows such systems to be further moderated since they can be considered as binding together the la>¾rs, both within a given layer and between layers. An ionic dopant (component (b)) is also included in the composition that migrates through the composition when low frequency electric fields are applied to the composition by the electrodes, thereby disrupting the order to the composition. Order in the composition can be restored by applying a higher frequency field that does not allow the dopant time to migrate significantly. Chromophores may also be included in the formulation.

    Abstract translation: 本发明涉及具有将组合物夹在一对电极（12-15）之间的光学装置中使用的具有近晶A结构的液晶组合物。 本质上该组合物包括硅氧烷低聚物（组分（a）），其可以被看作构建具有特定间距和“强度”的层状SmA体系。 在该结构中，提供了低摩尔质量向列型介晶（组分（c）），其可以被认为是调节层“强度”的“增塑剂”，同时为组合物的性质提供可调性，例如。 其折射率或介电各向异性。 侧链液晶聚硅氧烷（组分（d））的添加允许这种体系进一步缓和，因为它们可以被认为在给定层内和层之间结合在一起。 当通过电极将低频电场施加到组合物上时，离子掺杂剂（组分（b））也包括在组合物中迁移通过组合物，从而破坏组合物的顺序。 可以通过施加不允许掺杂剂时间显着迁移的较高频率场来恢复组合物中的顺序。 发色团也可以包括在制剂中。

    Silicone resins
    4.
    发明申请
    Silicone resins 失效
    硅树脂

    公开(公告)号：US20060057297A1

    公开(公告)日：2006-03-16

    申请号：US10531163

    申请日：2003-10-09

    Applicant: Pierre Chevalier ,  Steven Robson ,  Anne Dupont ,  Duan Ou ,  Yeong Lee

    Inventor： Pierre Chevalier ,  Steven Robson ,  Anne Dupont ,  Duan Ou ,  Yeong Lee

    IPC: B05D3/02 ,  C08L83/04 ,  C08G77/04 ,  B32B9/04

    CPC classification number: C08G77/20 ,  C08G77/12 ,  C08G77/70 ,  C08L83/04

    Abstract: A silicone resin, curable to a resin of low coefficient of thermal expansion, high glass transition temperature and high modulus, has the empirical formula (R3SiO2)a(R2SiO2/2)b(RsiO3/2)c(SiO4/2)d wherein each R is a hydrocarbon or substituted hydrocarbon group or a hydrogen atom; and a=0.02 to 0.8; b=0 to 0.4; and c+d=0.2 to 0.98, where a+b+c+d=1.0, characterized in that at least 2 mole % of the siloxane units in the resin are of the formula R′3SiO1/2 RR′2Sio1/2 or R′2SiO2/2 wherein each R′ is an alkenyl group.

    Abstract translation: 可固化成低热膨胀系数的树脂，高玻璃化转变温度和高模量的硅树脂具有经验式（R 3 SiO 2 SiO 2） （R 2 O 2/2/2）b（R 3 O 3/2 2）

    Silicone resins
    5.
    发明授权
    Silicone resins 失效
    硅树脂

    公开(公告)号：US07425351B2

    公开(公告)日：2008-09-16

    申请号：US10531163

    申请日：2003-10-09

    Applicant: Pierre Maurice Chevalier ,  Steven Robson ,  Anne Dupont ,  Duan Li Ou ,  Yeong Joo Lee

    Inventor： Pierre Maurice Chevalier ,  Steven Robson ,  Anne Dupont ,  Duan Li Ou ,  Yeong Joo Lee

    IPC: B05D3/02

    CPC classification number: C08G77/20 ,  C08G77/12 ,  C08G77/70 ,  C08L83/04

    Abstract: A silicone resin, curable to a resin of low coefficient of thermal expansion, high glass transition temperature and high modulus, has the empirical formula (R3SiO1/2)a(R2SiO2/2)b(RSiO3/2)c(SiO4/2)d wherein each R is a hydrocarbon or substituted hydrocarbon group or a hydrogen atom; and a=0.02 to 0.8; b=0 to 0.4; and c+d=0.2 to 0.98, where a+b+c+d=1.0, characterized in that at least 2 mole % of the siloxane units in the resin are of the formula R′SiO1/2, RR′2SiO1/2 or R′2SiO2/2, wherein each R′ is an alkenyl group.

    Abstract translation: 可固化成热膨胀系数低，玻璃化转变温度高，模量高的树脂的有机硅树脂具有经验公式<？in-line-formula description =“In-line Formulas”end =“lead”？> （R 2 SiO 2/2）2（R 2 SiO 1/2）2 N 2 ）（S 1/2/3）2（SiO 2/2） > <？in-line-formula description =“In-line formula”end =“tail”？>其中每个R是烃或取代的烃基或氢原子; a = 0.02〜0.8; b = 0〜0.4; 和c + d = 0.2至0.98，其中a + b + c + d = 1.0，其特征在于树脂中至少2摩尔％的硅氧烷单元具有式R'SiO 1/2 R 2，R 2，R 2，R 2，R 2，R 2，R 2，R 2，R 2，R 2，R 2， '是烯基。

    Pressure Material
    6.
    发明申请
    Pressure Material 审中-公开
    压力材料

    公开(公告)号：US20150190269A1

    公开(公告)日：2015-07-09

    申请号：US14125136

    申请日：2012-06-12

    Applicant: Bertrand Louis Julien Lenoble ,  Elizabeth F. Mallen ,  Steven Robson ,  Graham D. Budden

    Inventor： Bertrand Louis Julien Lenoble ,  Elizabeth F. Mallen ,  Steven Robson ,  Graham D. Budden

    IPC: A61F5/30 ,  A61F13/06

    CPC classification number: A61F5/30 ,  A61F13/067

    Abstract: A method of spreading constant or repeated pressure away from one or more pressure points between a user and an item of wear wherein the item of wear comprises a pressure material being either: (i) a thermoplastic material having the composition comprising a mixture of; (a) component (A) an organic thermoplastic elastomer having a hardness below 80 shore A measured at 23° C. (ISO 868); and (b) component (B) which is a non cross-linked and substantially non reactive silicone polymer or a cross-linked silicone polymer, with the exclusion of borated silicone polymers exhibiting dilatant properties; or (ii) a flexible material having the composition comprising a mixture of; (c) an elastomeric material having a modulus at 100% elongation of 0.1-10 MPa; and (d) 5-80% by weight, based on the total weight of the composition of a non-reactive silicone fluid having a viscosity of 1,000-3,000,000 mPas at 25° C.; or (iii) both (i) and (ii). The use of such a pressure material in the item of wear has been found to provide an excellent method of spreading pressure away from pressure points on the item of wear.

    Abstract translation: 一种从用户和磨损物品之间的一个或多个压力点传播恒定或重复压力的方法，其中磨损项包括压力材料，其为：（i）具有包含以下物质的混合物的组合物的热塑性材料： （a）组分（A）在23℃下测得的硬度低于80 Shore A的有机热塑性弹性体（ISO 868）; 和（b）组分（B），其是非交联和基本上不反应的硅氧烷聚合物或交联的硅氧烷聚合物，排除具有膨胀性质的硼酸化聚硅氧烷聚合物; 或（ii）具有组合物的柔性材料，所述组合物包含： （c）在100％伸长率下的模量为0.1-10MPa的弹性体材料; 和（d）5-80重量％，基于组合物在25℃下粘度为1,000-3,000,000mPas的非反应性硅氧烷流体的总重量。 或（iii）（i）和（ii）。 已经发现在磨损项目中使用这种压力材料提供了将压力从磨损物品上的压力点传播出来的优良方法。

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