Process for producing aromatic liquid crystalline polyester and film thereof
    2.
    发明授权
    Process for producing aromatic liquid crystalline polyester and film thereof 失效
    芳香族液晶聚酯的制造方法及其膜

    公开(公告)号:US06656578B2

    公开(公告)日:2003-12-02

    申请号:US10238597

    申请日:2002-09-11

    IPC分类号: B32B1502

    摘要: Provided is a process for producing an aromatic liquid crystalline polyester comprising the steps of: charging 80 20 mol % of a compound represented by the following formula (I) and 20 to 80 mol % of a compound represented by the following formula (II) into a reaction vessel; conducting polycondensation reaction at a temperature from 270 to 350° C. to produce a aromatic liquid crystalline polyester; discharging the aromatic liquid crystalline polyester in a molten state from the reaction vessel and solidifying; then, pulverizing the solidified polyester into particles; and heat-treating at a temperature from 200 to 310° C., The aromatic liquid crystalline polyester has improved low temperature molding processability, and the film thereof has sufficient heat-resistance and excellent gas barrier properties.

    摘要翻译: 本发明提供一种芳香族液晶聚酯的制造方法,其特征在于,将下述通式(I)表示的化合物20 20摩尔%,下述式(II)表示的化合物20〜80摩尔%添加到 反应容器; 在270〜350℃的温度下进行缩聚反应,生成芳族液晶聚酯; 将熔融状态的芳族液晶聚酯从反应容器中排出并固化; 然后将固化的聚酯粉碎成颗粒; 在200〜310℃的温度下进行热处理。芳香族液晶聚酯具有改善的低温成型加工性,其膜具有充分的耐热性和优异的阻气性。

    Aromatic liquid crystalline polyester resin and resin composition thereof
    3.
    发明授权
    Aromatic liquid crystalline polyester resin and resin composition thereof 失效
    芳族液晶聚酯树脂及其树脂组合物

    公开(公告)号:US06376076B1

    公开(公告)日:2002-04-23

    申请号:US09881846

    申请日:2001-06-18

    IPC分类号: B32B1502

    摘要: Provided are a aromatic liquid crystalline polyester resin having improved low temperature processability, a film having excellent gas barrier property. The aromatic liquid crystalline polyester resin is obtained from an aromatic hydroxycarboxylic acid, an aromatic dicarboxylic acid and an aromatic diol, by optimizing formulation ratio of the above-described three components. The aromatic liquid crystalline polyester resin comprises an aromatic hydroxycarboxylic acid unit, an aromatic dicarboxylic acid unit and an aromatic diol unit, as repeating units, wherein the repeating unit (A) as an aromatic hydroxycarboxylic acid unit, is contained in an amount of 30 mol % or more based on the total amount of repeating units, and the polyester has a logarithmic viscosity of 1.5 dl/g or more, a flow temperature of 300° C. or less, and a melt tension measured at a temperature higher than the flow temperature by 25° C. or more of 1.0 g or more,

    摘要翻译: 提供了具有改善的低温加工性的芳族液晶聚酯树脂,具有优异阻气性的膜。芳族液晶聚酯树脂通过优选芳族羟基羧酸,芳族二羧酸和芳族二醇获得,优化配方比例 上述三种组分。芳族液晶聚酯树脂包含芳族羟基羧酸单元,芳族二羧酸单元和芳族二醇单元作为重复单元,其中作为芳族羟基羧酸单元的重复单元(A)为 其含量相对于重复单元的总量为30摩尔%以上,聚酯的对数粘度为1.5dl / g以上,流动温度为300℃以下,熔融张力为 在比流动温度高25℃以上1.0℃以上的温度下,

    Aromatic liquid crystalline polyester resin and resin composition thereof
    4.
    发明授权
    Aromatic liquid crystalline polyester resin and resin composition thereof 失效
    芳族液晶聚酯树脂及其树脂组合物

    公开(公告)号:US06296930B1

    公开(公告)日:2001-10-02

    申请号:US09327541

    申请日:1999-06-08

    IPC分类号: B32B326

    摘要: Provided are a aromatic liquid crystalline polyester resin having improved low temperature processability, a film having excellent gas barrier property. The aromatic liquid crystalline polyester resin is obtained from an aromatic hydroxycarboxylic acid, an aromatic dicarboxylic acid and an aromatic diol, by optimizing formulation ratio of the above-described three components. The aromatic liquid crystalline polyester resin comprises an aromatic hydroxycarboxylic acid unit, an aromatic dicarboxylic acid unit and an aromatic diol unit, as repeating units, wherein the repeating unit (A) as an aromatic hydroxycarboxylic acid unit, is contained in an amount of 30 mol % or more based on the total amount of repeating units, and the polyester has a logarithmic viscosity of 1.5 dl/g or more, a flow temperature of 300° C. or less, and a melt tension measured at a temperature higher than the flow temperature by 25° C. or more of 1.0 g or more,

    摘要翻译: 提供具有改进的低温加工性的芳族液晶聚酯树脂,具有优异阻气性的膜。 芳族液晶聚酯树脂通过优化上述三种成分的配比,由芳香族羟基羧酸,芳香族二羧酸和芳香族二醇得到。 芳族液晶聚酯树脂包含芳族羟基羧酸单元,芳族二羧酸单元和芳族二醇单元作为重复单元,其中作为芳族羟基羧酸单元的重复单元(A)的含量为30摩尔 基于重复单元的总量的%以上,聚酯的对数粘度为1.5dl / g以上,流动温度为300℃以下,在比流动温度高的温度下测定的熔融张力 温度为25℃以上为1.0g以上,

    Process for producing aromatic liquid crystalline polyester and film thereof
    5.
    发明授权
    Process for producing aromatic liquid crystalline polyester and film thereof 失效
    芳香族液晶聚酯的制造方法及其膜

    公开(公告)号:US06528164B1

    公开(公告)日:2003-03-04

    申请号:US09649061

    申请日:2000-08-29

    IPC分类号: B32B1502

    摘要: Provided is a process for producing an aromatic liquid crystalline polyester comprising the steps of: charging 80 to 20 mol % of a compound represented by the following formula (I) and 20 to 80 mol % of a compound represented by the following formula (II) into a reaction vessel; conducting polycondensation reaction at a temperature from 270 to 350° C. to produce an aromatic liquid crystalline polyester; discharging the aromatic liquid crystalline polyester in a molten state from the reaction vessel and solidifying; then, pulverizing the solidified polyester into particles; and heat-treating at a temperature from 200 to 310° C., The aromatic liquid crystalline polyester has improved low temperature molding processability, and the film thereof has sufficient heat-resistance and excellent gas barrier properties.

    摘要翻译: 本发明提供一种芳香族液晶聚酯的制造方法,其特征在于,包括以下工序:将下述通式(I)表示的化合物80〜20摩尔%,下式(II)表示的化合物20〜80摩尔% 进入反应容器; 在270〜350℃的温度下进行缩聚反应,生成芳香族液晶聚酯; 将熔融状态的芳族液晶聚酯从反应容器中排出并固化; 然后将固化的聚酯粉碎成颗粒; 在200〜310℃的温度下进行热处理。芳香族液晶聚酯具有改善的低温成型加工性,其膜具有充分的耐热性和优异的阻气性。

    Process for producing aromatic polyesters
    6.
    发明授权
    Process for producing aromatic polyesters 失效
    制备芳族聚酯的方法

    公开(公告)号:US5015723A

    公开(公告)日:1991-05-14

    申请号:US400131

    申请日:1989-08-28

    摘要: An aromatic polyester of good processability and heat resistance is prepared by charging starting materials in a reaction vessel, carrying out polycondensation reaction in the vessel until the flow temperature of the produced aromatic polyester falls in the temperature range of from 240.degree. C. to a temperature of 20.degree. C. below the reaction temperature and discharging the reaction product from the vessel in the molten state.The aromatic polyester obtained by the present invention can be used molded into various forms such as fiber, film, etc. In addition, compositions comprising this aromatic polyester and glass fibers, mica, talc, silica, potassium titanate, wollastonite, calcium carbonate, quartz, iron oxide, graphite, carbon fibers, etc. can be used in machine parts, electric and electronic parts and automobile parts because of their excellent mechanical properties, electric properties, chemical resistance and oil resistance.

    Aromatic polyester and a process for producing the same
    7.
    发明授权
    Aromatic polyester and a process for producing the same 失效
    芳香聚酯及其制造方法

    公开(公告)号:US5142017A

    公开(公告)日:1992-08-25

    申请号:US554428

    申请日:1990-07-19

    IPC分类号: C08G63/60 C09K19/38

    CPC分类号: C09K19/3809 C08G63/605

    摘要: An aromatic polyester comprising the repeating units (A), (B), (C) and (D) represented by the following formulae in amounts of 0 to 80 mole %, 10 to 50 mole %, 5 to 50 mole % and 0 to 30 mole %, respectively, having a logarithmic viscosity of 1.0 dl/g or more and capable of being melt-molded at a temperature of 350.degree. C. or less: ##STR1## where R represents a C.sub.2 -C.sub.6 alkylene, and--O--AR--O-- (D)where Ar represents a divalent aromatic residue, and a process for producing the same. The aromatic polyesters according to the present invention combine moldability and heat resistance in a good state and have mechanical properties of sufficient practical value. An aromatic polyester according to the present invention shows optical anisotropy at a molten state.

    Polyphenylene ether resin composition
    8.
    发明授权
    Polyphenylene ether resin composition 失效
    聚苯醚树脂组合物

    公开(公告)号:US5484831A

    公开(公告)日:1996-01-16

    申请号:US383179

    申请日:1995-02-03

    IPC分类号: C08G65/48 C08K5/17

    CPC分类号: C08G65/485 C08K5/17

    摘要: A resin composition comprising a polyphenylene ether having, on the average, 0.01 to 10 terminal structures of the formula (1): ##STR1## wherein R.sub.1 to R.sub.5 are each hydrogen, halogen, a substituted or unsubstituted alkyl, alkenyl or alkynyl group, or a substituted or unsubstituted aryl group, R.sub.6 is a substituted or unsubstituted alkylene group, and R.sub.7 to R.sub.11 are each hydrogen, halogen, an alkyl group, an alkoxy group, a phenyl group, a phenoxy group, a nitro group or a cyano group per 100 phenylene ether units, and a primary aliphatic monoamine having an aromatic substituent, which composition has good thermal stability.

    摘要翻译: 一种树脂组合物,其包含平均具有式(1)的0.01至10个末端结构的聚苯醚:其中R 1至R 5各自为氢,卤素,取代或未取代的烷基,烯基或炔基 基团或取代或未取代的芳基,R6是取代或未取代的亚烷基,R7〜R11分别为氢,卤素,烷基,烷氧基,苯基,苯氧基,硝基或 氰基,每100个亚苯基醚单元和具有芳香族取代基的伯脂肪族单胺,该组合物具有良好的热稳定性。

    Process for producing aromatic polyesters
    9.
    发明授权
    Process for producing aromatic polyesters 失效
    生产芳族聚酯的方法

    公开(公告)号:US5055546A

    公开(公告)日:1991-10-08

    申请号:US429041

    申请日:1989-10-30

    IPC分类号: C08G63/682 C08G63/60

    CPC分类号: C08G63/605

    摘要: An aromatic polyester superior in heat resistance and melt-moldability is obtained by carrying out the polycondensation reaction withComponent A consisting of at least one compound having the formula, ##STR1## wherein R.sub.1 is hydrogen, formyl, acetyl, propionyl or benzoyl, and R.sub.2 is hydrogen, a C.sub.1 -C.sub.6 alkyl or a C.sub.6 -C.sub.18 aryl, or a mixture containing not less than 50% by mole of said compound,Component B consisting of at least one compound having any one of the formulas, ##STR2## wherein R.sub.3 is hydroxyl, a C.sub.1 -C.sub.6 alkyloxy, a C.sub.6 -C.sub.18 aryloxy or halogen, or a mixture containing not less than 50% by mole of said compound, andComponent C consisting of at least one compound having the formula,R.sub.4 O--A.sub.1 --OR.sub.4wherein A.sub.1 is a divalent aromatic residue, and R.sub.4 is hydrogen, acetyl, propionyl or benzoylin a reaction vessel at a temperature of 270.degree. C. to 380.degree. C. until the flow temperature of the produced aromatic polyester reaches a temperature of 240.degree. C. or higher.The aromatic polyester obtained by the process of the present invention can be used molded into various forms such as fiber, film, etc. In addition, compositions comprising this aromatic polyester and fillers can be used in machine parts, electric and electronic parts and automobile parts because of their excellent mechanical properties, electric properties, chemical resistance and oil resistance.