Process for producing 1,3-bis(dicarboxyphenyl)-disiloxane derivative or
dianhydride thereof
    2.
    发明授权
    Process for producing 1,3-bis(dicarboxyphenyl)-disiloxane derivative or dianhydride thereof 失效
    制备1,3-双(二羧基苯基) - 二硅氧烷衍生物或其二酐的方法

    公开(公告)号:US5166363A

    公开(公告)日:1992-11-24

    申请号:US803897

    申请日:1991-12-09

    IPC分类号: C07F7/08

    CPC分类号: C07F7/0874 C07F7/0889

    摘要: A process for producing (i) a 1,3-bis(dicarboxyphenyl)disiloxane derivative represented by the general formula ##STR1## wherein Rs and R's independently of one another denote methyl or phenyl or (ii) a 1,3-bis(dicarboxyphenyl)-disiloxane derivative dianhydride represented by the general formula ##STR2## wherein Rs and R's are as defined above, the process comprising coupling a Grignard reagent of halo-o-xylene with a disubstituted halosilane represented by the general formula ##STR3## wherein R and R' are as defined above and X denotes halogen, to form a dimethylphenyl(disubstituted silane) represented by the general formula ##STR4## wherein R and R' are as defined above, hydroxylating the dimethylphenyl(disubstituted silane) to form a dimethylphenyl(disubstituted hydroxysilane) represented by the general formula ##STR5## wherein R and R' are as defined above, to form a 1,3-bis(dimethylphenyl)-disilanedehydrating-condensing the dimethylphenyl-(disubstituted hydroxysilane derivative represented by the general formula ##STR6## wherein Rs and R's are as defined above, and oxidizing the 1,3-bis(dimethylphenyl)disilane derivative to yield the intended 1,3-bis(dicarboxyphenyl)disiloxane derivative of general formula [V], orfurther comprising the dehydration ring closure of this product to form a 1,3-bis(dicarboxyphenyl)-disiloxane derivative dianhydride of general formula [VI], mixing the resulting isomeric mixture with an ether solvent, and recovering the formed precipitate to yield a white powder of the intended product of general formula [VI].

    摘要翻译: 一种制备(i)由通式[IMAGE] [V]表示的1,3-双(二羧基苯基)二硅氧烷衍生物的方法,其中R 5和R 6彼此独立地表示甲基或苯基,或(ii) 由通式Ⅵ[VI]表示的双(二羧基苯基) - 二硅氧烷衍生物二酐,其中R 5和R 8如上所定义,该方法包括将卤代邻二甲苯的格氏试剂与通式 其中R和R'如上所定义,X表示卤素,形成由通式[II]表示的二甲基苯基(二取代硅烷),其中R和R'如上定义,羟基化 二甲基苯基(二取代的硅烷)以形成由通式[IMAGE] [III]表示的二甲基苯基(二取代的羟基硅烷),其中R和R'如上所定义,以形成1,3-双(二甲基苯基) - 二硅烷脱水 - 缩合二甲基苯基 - (二取代的羟基 由通式[IMAGE] [Ⅳ]表示的哒嗪衍生物,其中R 5和R 8如上所定义,并氧化1,3-双(二甲基苯基)二硅烷衍生物,得到所需的1,3-双(二甲基苯基)二硅氧烷衍生物 或者进一步包括该产物的脱水闭环以形成通式[VI]的1,3-双(二羧基苯基) - 二硅氧烷衍生物二酐,将得到的异构体混合物与醚溶剂混合,并回收 形成的沉淀物得到通式[VI]的预期产物的白色粉末。

    Phenolic polymer and production thereof
    5.
    发明授权
    Phenolic polymer and production thereof 失效
    酚醛聚合物及其生产

    公开(公告)号:US5102962A

    公开(公告)日:1992-04-07

    申请号:US499701

    申请日:1990-03-27

    IPC分类号: C07C37/16 C08G61/02

    CPC分类号: C08G61/02 C07C37/14 C07C37/16

    摘要: A phenolic polymer obtained by reacting a phenolic compound with a bis(hydroxyalkyl)benzene, followed by alkylation of ortho positions or para position with respect to the hydroxyl group of the terminal phenol groups of the produced polymer is suitable for use as a heat resistant antioxidant for thermoplastic resins.

    摘要翻译: 通过使酚类化合物与双(羟烷基)苯反应,然后相对于所制备的聚合物的末端苯酚基团的羟基进行邻位烷基化或对位而获得的酚醛聚合物适合用作耐热抗氧化剂 用于热塑性树脂。

    Para- or meta-terphenyltetracarboxylic acid, dianhydride thereof and
process for preparing the same
    7.
    发明授权
    Para- or meta-terphenyltetracarboxylic acid, dianhydride thereof and process for preparing the same 失效
    对 - 或间三联苯四甲酸,其二酐及其制备方法

    公开(公告)号:US4912233A

    公开(公告)日:1990-03-27

    申请号:US262220

    申请日:1988-10-21

    IPC分类号: C07C63/331

    CPC分类号: C07C63/331

    摘要: Disclosed are a para- or meta-terphenyl-3,4,3",4"-tetracarboxylic acid or a dianhydride and a process for preparing the same. The para- or meta-terphenyl-3,4,3",4"-tetracarboxylic acid or a dianhydride thereof according to the present invention is a novel compound which is useful as a raw material for a polyimide having higher heat resistance and so on.

    摘要翻译: 公开了对 - 或间 - 三联苯-3,4,3',4“ - 四羧酸或二酐及其制备方法。 根据本发明的对 - 或间 - 三联苯-3,4,3',4“ - 四羧酸或其二酐是一种新型化合物,其可用作具有较高耐热性的聚酰亚胺的原料, 所以。

    Mass air flow measurement device
    8.
    发明授权
    Mass air flow measurement device 有权
    大气流量测量装置

    公开(公告)号:US08573041B2

    公开(公告)日:2013-11-05

    申请号:US13314591

    申请日:2011-12-08

    IPC分类号: G01M15/04

    摘要: An arrangement of a mass intake air flow measurement device suitable for integrating a humidity sensing device as well as a temperature sensing device and a pressure sensing device is provided. A second bypass passage 501 bypassing a bypass passage 205 is formed and a humidity sensing device 500 is mounted in the second bypass passage 501. A second bypass passage inlet 502 and a second bypass passage outlet 503 formed in a wall surface of the bypass passage 205 are opened parallel to the direction of flow of air flowing in the bypass passage 205.

    摘要翻译: 提供了一种适合于集成湿度感测装置以及温度感测装置和压力感测装置的大量进气流量测量装置的布置。 形成旁通旁路通路205的第二旁路通路501,在第二旁路通路501中安装湿度检测装置500.形成在旁通路205的壁面的第二旁路通路入口502和第二旁路通路出口503 平行于在旁路通路205中流动的空气的流动方向开口。

    Sensor structure
    9.
    发明授权
    Sensor structure 有权
    传感器结构

    公开(公告)号:US08549901B2

    公开(公告)日:2013-10-08

    申请号:US13367939

    申请日:2012-02-07

    IPC分类号: G01M15/04

    摘要: In relation to a humidity sensor sensitive to water and contamination, a sensor implementation structure that achieves both protection performance against water and contaminants and measurement performance such as humidity responsiveness is provided. A sensor structure has a mass airflow measurement element that measures a mass airflow flowing in an intake pipe, a humidity sensing element that senses humidity of air flowing in the intake pipe, a housing structural component having a connector that carries out input/output to/from outside and a terminal component of the connector, and a bypass passage that is composed by using part of the housing structural component and takes in part of the air that flows in the intake pipe, the mass airflow measurement element being mounted in the bypass passage; wherein space is provided in the housing structural component in the vicinity of the bypass passage, the humidity sensing element is mounted in the space.

    摘要翻译: 关于对水和污染物敏感的湿度传感器,提供了实现对水和污染物的保护性能以及诸如湿度响应性的测量性能的传感器实施结构。 传感器结构具有测量进气管中流动的质量气流的质量气流测量元件,感测进气管中流动的空气湿度的湿度感测元件,具有连接器的壳体结构部件,该连接器将输入/ 从连接器的外部和端子部件和旁通通路构成,所述旁通通路由使用所述壳体结构部件的一部分而占据所述进气管中流动的一部分空气,所述质量空气流量测量元件安装在所述旁路通路 ; 其中在所述外壳结构部件中在所述旁通通路附近设置空间,所述湿度感测元件安装在所述空间中。