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    • 4. 发明申请
    • LIQUID CRYSTALLINE POLYURETHANE ELASTOMER AND METHOD FOR PRODUCING SAME
    • 液晶聚氨酯弹性体及其制造方法
    • US20160376396A1
    • 2016-12-29
    • US15103005
    • 2014-08-22
    • TOYO TIRE & RUBBER CO., LTD.
    • Yuki Hidaka
    • C08G18/10C09K19/38C08G18/32C08G18/48C08G18/76
    • C08G18/10C08G18/3206C08G18/3215C08G18/4812C08G18/4825C08G18/4829C08G18/7621C09K19/3885
    • A liquid crystalline polyurethane elastomer is produced by reacting an isocyanate component, a high-molecular-weight polyol component and a mesogenic diol represented by formula (1), and having a crosslinking site that is introduced by a tri-functional or higher isocyanate in the isocyanate component and/or a high-molecular-weight polyol having a number average molecular weight of 400 or more and less than 7000 and having three or more hydroxy groups, in the high-molecular-weight polyol component, wherein the melting point of a mesogenic unit does not exist in a temperature range lying between the glass transition temperature (Tg) and the (liquid crystal phase)-to-(isotropic phase) transition temperature (Ti) of the polyurethane elastomer, and a liquid crystal is developed at a temperature between the Tg and the Ti. (In the formula, X represents an alkylene group having 3 to 20 carbon atoms; and Y represents a single bond, —N═N—, —CO—, —CO—O— or —CH═N—.)
    • 本发明的目的是提供一种具有低液晶显影温度的液晶聚氨酯弹性体,并且当液晶在其中显影时具有橡胶弹性,以及制备该液晶聚氨酯弹性体的方法。 根据本发明的液晶聚氨酯弹性体的特征在于通过至少使异氰酸酯组分,高分子量多元醇组分和由通式(1)表示的介晶二醇彼此反应而制备,并且还被表征 通过在异氰酸酯组分中具有由三官能以上异氰酸酯引入的交联部位和/或数均分子量为400以上且小于7000的具有三个以上羟基的高分子量多元醇 在高分子量多元醇组分中,在玻璃化转变温度(Tg)和(液晶相)至(各向同性相)之间的温度范围内,介晶单元的熔点不存在, 聚氨酯弹性体的转变温度(Ti)和液晶在Tg和Ti之间的温度下显影。 (式中,X表示碳原子数3〜20的亚烷基,Y表示单键,-N = N-,-CO-,-CO-O-或-CH = N-)
    • 5. 发明授权
    • Resin-type lightguide plate composition, backlight unit including lightguide plate formed using the composition, and liquid crystal display including the backlight unit
    • 树脂型光导板组合物,包括使用该组合物形成的光导板的背光单元和包括背光单元的液晶显示器
    • US08319913B2
    • 2012-11-27
    • US13091463
    • 2011-04-21
    • Sueng Mo HongKee Yong KimTae Wook Kim
    • Sueng Mo HongKee Yong KimTae Wook Kim
    • G02F1/1335G02F1/13G09F13/04F21V7/04
    • C09K19/3885C09K19/3086C09K19/3809C09K19/3852C09K2019/0448
    • A resin-type light guide plate composition, a backlight unit including the light guide plate formed using the composition and a liquid crystal display including the backlight unit. The resin-type light guide plate composition includes urethane-(meth)acrylate oligomer prepared by reacting a reaction product of a compound prepared by reacting divalent polyol and divalent isocyanate with (meth)acrylate monomer including hydroxyl group, hydrogen bond type (meth)acrylate including hydroxyl group or carboxyl group, acrylic monomer having a maximum shrinkage rate of 15% or less, represented by the equation (1): Maximum shrinkage rate (%)=−2.58+3000*[number of (meth)acryl functional groups/molecular weight of acrylic monomer], and a photoinitiator.   The composition can be used for a light guide plate formed by a simple curing process and having excellent adhesion with respect to a base film and adopted to an edge-lit, local dimming backlight unit having a reduced shrinkage rate.
    • 树脂型导光板组合物,包括使用该组合物形成的导光板的背光单元和包括背光单元的液晶显示器。 树脂型导光板组合物包含通过使二价多元醇和二价异氰酸酯与包含羟基的(甲基)丙烯酸酯单体反应制备的化合物与羟基,氢键型(甲基)丙烯酸酯反应制得的氨基甲酸酯 - (甲基)丙烯酸酯低聚物 包括羟基或羧基,最大收缩率为15%以下的丙烯酸单体,由式(1)表示:最大收缩率(%)= - 2.58 + 3000 * [(甲基)丙烯酰基官能团数/ 丙烯酸单体的分子量]和光引发剂。 <等式1>该组合物可以用于通过简单的固化方法形成的导光板,并且相对于基底膜具有优异的粘合性,并且被采用于具有降低的收缩率的边缘照明的局部调光背光单元。
    • 6. 发明申请
    • RESIN-TYPE LIGHTGUIDE PLATE COMPOSITION, BACKLIGHT UNIT INCLUDING LIGHTGUIDE PLATE FORMED USING THE COMPOSITION, AND LIQUID CRYSTAL DISPLAY INCLUDING THE BACKLIGHT UNIT
    • 树脂类型的光板组合物,背光单元,其中包括使用该组合物形成的光板,以及包括背光单元的液晶显示器
    • US20110261288A1
    • 2011-10-27
    • US13091463
    • 2011-04-21
    • Seung Mo HongKee Yong KimTae Wook Kim
    • Seung Mo HongKee Yong KimTae Wook Kim
    • G02F1/13357C08J3/28F21V7/22C08G18/66
    • C09K19/3885C09K19/3086C09K19/3809C09K19/3852C09K2019/0448
    • A resin-type light guide plate composition, a backlight unit including the light guide plate formed using the composition and a liquid crystal display including the backlight unit. The resin-type light guide plate composition includes urethane-(meth)acrylate oligomer prepared by reacting a reaction product of a compound prepared by reacting divalent polyol and divalent isocyanate with (meth)acrylate monomer including hydroxyl group, hydrogen bond type (meth)acrylate including hydroxyl group or carboxyl group, acrylic monomer having a maximum shrinkage rate of 15% or less, represented by the equation (1): Maximum shrinkage rate (%)=−2.58+3000*[number of (meth)acryl functional groups/molecular weight of acrylic monomer], and a photoinitiator.   The composition can be used for a light guide plate formed by a simple curing process and having excellent adhesion with respect to a base film and adopted to an edge-lit, local dimming backlight unit having a reduced shrinkage rate.
    • 树脂型导光板组合物,包括使用该组合物形成的导光板的背光单元和包括背光单元的液晶显示器。 树脂型导光板组合物包含通过使二价多元醇和二价异氰酸酯与包含羟基的(甲基)丙烯酸酯单体反应制备的化合物与羟基,氢键型(甲基)丙烯酸酯反应制得的氨基甲酸酯 - (甲基)丙烯酸酯低聚物 包括羟基或羧基,最大收缩率为15%以下的丙烯酸单体,由式(1)表示:最大收缩率(%)= - 2.58 + 3000 * [(甲基)丙烯酰基官能团数/ 丙烯酸单体的分子量]和光引发剂。 <等式1>该组合物可以用于通过简单的固化方法形成的导光板,并且相对于基底膜具有优异的粘合性,并且被采用于具有降低的收缩率的边缘照明的局部调光背光单元。