利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

18 条记录 (耗时 0.018 秒)

    Process for the preparation of aromatic polycarbonate resins
    2.
    发明授权
    Process for the preparation of aromatic polycarbonate resins 失效
    芳香族聚碳酸酯树脂的制备方法

    公开(公告)号：US5519106A

    公开(公告)日：1996-05-21

    申请号：US373034

    申请日：1995-01-17

    申请人： Masahiro Nukui ,  Takao Tayama ,  Takeshi Kashiwagi ,  Masatoshi Kimura ,  Hidekazu Shoji

    发明人： Masahiro Nukui ,  Takao Tayama ,  Takeshi Kashiwagi ,  Masatoshi Kimura ,  Hidekazu Shoji

    IPC分类号： C08G64/30 ,  C08G64/00

    CPC分类号： C08G64/307

    摘要： A process for preparing an aromatic polycarbonate resin from an aromatic dihydroxy compound and a carbonate diester by transesterification in the presence of a transesterification catalyst comprising; reacting a purified carbonate diester with an aromatic dihydroxy compound in the presence of a transesterification catalyst to form a polycarbonate prepolymer; said carbonate diester containing benzophenone and benzoate ester derivatives having a molecular weight of less than 1,000, each in an amount of 100 ppm or less, said polycarbonate prepolymer having a viscosity average molecular weight of 5,000 to 20,000 at a temperature of 140.degree. to 280.degree. C., the reaction pressure being from 0.1 Torr to normal pressure; polymerizing said prepolymer at a temperature of 240.degree. to 350.degree. C. in a lateral, bi-axial, self-cleaning reactor to obtain an aromatic polycarbonate resin having a viscosity average molecular weight of 15,000 to 60,000. The aromatic polycarbonate is colorless and transparent and is suitable for extrusion molding.

    摘要翻译： 一种由酯交换催化剂存在下通过酯交换反应由芳族二羟基化合物和碳酸二酯制备芳族聚碳酸酯树脂的方法，包括： 在酯交换催化剂存在下使纯化的碳酸二酯与芳族二羟基化合物反应以形成聚碳酸酯预聚物; 所述含有分子量小于1,000的二苯甲酮和苯甲酸酯衍生物的碳酸酯二酯各自为100ppm以下，所述聚碳酸酯预聚物在140〜280℃的温度下的粘均分子量为5000〜20,000。 C.反应压力为0.1乇至常压; 在侧向双轴自清洁反应器中在240℃至350℃的温度下聚合所述预聚物，得到粘均分子量为15,000至60,000的芳族聚碳酸酯树脂。 芳香族聚碳酸酯是无色透明的，适用于挤出成型。

    Photosensitive member for electrophotography
    3.
    发明授权
    Photosensitive member for electrophotography 失效
    电子照相用感光元件

    公开(公告)号：US4956256A

    公开(公告)日：1990-09-11

    申请号：US364251

    申请日：1989-06-09

    申请人： Shigenori Ohtsuka ,  Hiroshi Urabe ,  Masahiro Nukui ,  Mamoru Nozomi ,  Setsuko Sasakawa

    发明人： Shigenori Ohtsuka ,  Hiroshi Urabe ,  Masahiro Nukui ,  Mamoru Nozomi ,  Setsuko Sasakawa

    IPC分类号： G03G5/05

    CPC分类号： G03G5/0564

    摘要： A photosensitive member for electrophotography comprising a photosensitive layer on a conductive substrate, said photosensitive layer containing as a binder resin a modified polycarbonate resin having the repeating structural units represented by the following general formula (1) and (2); ##STR1## wherein R.sup.1 and R.sup.2 are selected from a hydrogen atom, an alkyl group having 1-3 carbon atoms and a halogen atom, at least one of R.sup.1 and R.sup.2 being the alkyl or the halogen atom, and ##STR2## the ratio of the repeating structural unit of the general formula (1) to that of the general formula (2) being at least 20:80. This photosensitive member is highly resistant to mechanical wear and the deterioration of sensitivity and chargeability.

    摘要翻译： 一种电子照相用感光构件，其包括导电性基板上的感光层，所述感光层含有作为粘合剂树脂的具有由以下通式（1）和（2）表示的重复结构单元的改性聚碳酸酯树脂; （1）其中R1和R2选自氢原子，具有1-3个碳原子的烷基和卤素原子，R 1和R 2中的至少一个是烷基或卤素原子，和＆lt; IMAGE＆gt; （2）通式（1）的重复结构单元与通式（2）的重复结构单元的比例为20:80以上。 该感光构件高度抵抗机械磨损和灵敏度和带电性的劣化。

    Alicyclic Polyester and Process for Producing the Same, and Resin Composition Using the Same
    4.
    发明申请
    Alicyclic Polyester and Process for Producing the Same, and Resin Composition Using the Same 审中-公开
    脂环族聚酯及其制造方法及使用其的树脂组合物

    公开(公告)号：US20090215933A1

    公开(公告)日：2009-08-27

    申请号：US11988165

    申请日：2006-06-07

    申请人： Atsushi Kasai ,  Masahiro Nukui ,  Tomohiko Tanaka ,  Atsushi Fujimura

    发明人： Atsushi Kasai ,  Masahiro Nukui ,  Tomohiko Tanaka ,  Atsushi Fujimura

    IPC分类号： C08L67/02 ,  C08G63/199 ,  C08G63/85 ,  C08K5/49

    CPC分类号： C08G63/199 ,  C08G63/85 ,  C08K5/49 ,  C08L67/02 ,  C08L69/00 ,  C08L2666/18

    摘要： An alicyclic polyester which is suitable for use as an optical material, low in coloration, satisfactory in thermal stability and hydrolytic stability, and reduced in foreign-matter content; and a resin composition comprising the alicyclic polyester and a polycarbonate. The alicyclic polyester is produced from a dicarboxylic acid ingredient comprising an alicyclic dicarboxylic acid as a major component and a diol ingredient comprising an alicyclic diol as a major component with the aid of a polycondensation catalyst comprising a titanium compound and an alkaline earth metal compound. The alicyclic polyester has a titanium content in terms of metal atom amount of 1-25 wt. ppm, excluding 25 wt. ppm, a ratio of the weight of the alkaline earth metal (M) to the weight of the titanium in terms of metal atom amount ratio, (M/Ti), of 0.25-1.0, and an intrinsic viscosity of 0.4 dl/g or higher.

    摘要翻译： 适合用作光学材料，着色度低，热稳定性和水解稳定性好的脂环族聚酯，异物含量降低; 和包含脂环族聚酯和聚碳酸酯的树脂组合物。 脂环族聚酯由包含脂环族二羧酸作为主要成分的二羧酸成分和以含有钛化合物和碱土金属化合物的缩聚催化剂为主要成分的二醇成分构成。 脂环族聚酯的钛含量以金属原子量计为1-25wt。 ppm，不包括25wt。 ppm，以金属原子量比计，碱土金属（M）与钛的重量比（M / Ti）为0.25-1.0，特性粘度为0.4dl / g，或 更高。

    Process for producing polycarbonate resin with tertiary alryl phenol molecular weight modifier
    8.
    发明授权
    Process for producing polycarbonate resin with tertiary alryl phenol molecular weight modifier 失效
    用三烯丙基苯酚分子量调节剂生产聚碳酸酯树脂的方法

    公开(公告)号：US4775739A

    公开(公告)日：1988-10-04

    申请号：US55352

    申请日：1987-05-29

    申请人： Masayoshi Hasuo ,  Hiroshi Urabe ,  Masahiro Nukui

    发明人： Masayoshi Hasuo ,  Hiroshi Urabe ,  Masahiro Nukui

    IPC分类号： C08G64/14 ,  C08G63/62

    CPC分类号： C08G64/14

    摘要： A process for producing a polycarbonate resin having a viscosity-average molecular weight of from 9,000 to 50,000 by reacting at least one bisphenol compound with phosgene or a carbonate, characterized in that a phenol compound having the formula: ##STR1## wherein R is an alkyl group having from 5 to 7 carbon atoms, and R is located at the ortho- or para-position relative to the OH group, is used as a molecular weight modifier.

    摘要翻译： 通过使至少一种双酚化合物与光气或碳酸酯反应制备粘均分子量为9000至50,000的聚碳酸酯树脂的方法，其特征在于具有下式的酚化合物：其中R 是具有5至7个碳原子的烷基，R相对于OH基位于邻位或对位，用作分子量调节剂。

    Polyester resin and process for its production
    9.
    发明授权
    Polyester resin and process for its production 有权
    聚酯树脂及其生产工艺

    公开(公告)号：US06667383B2

    公开(公告)日：2003-12-23

    申请号：US10263716

    申请日：2002-10-04

    申请人： Yoshihiro Fujimori ,  Masahiro Nukui ,  Yutaka Yatsugi ,  Kenichi Matsui

    发明人： Yoshihiro Fujimori ,  Masahiro Nukui ,  Yutaka Yatsugi ,  Kenichi Matsui

    IPC分类号： C08G6378

    CPC分类号： C08G63/85 ,  C08G63/183 ,  C08G63/82 ,  C08G63/826 ,  C08G63/83 ,  C08G63/87

    摘要： A polyester resin is prepared by polycondensing a dicarboxylic acid component containing terephthalic acid or its ester-forming derivative as the main component, and a diol component containing ethylene glycol as the main component in the presence of (1) a compound of at least one member selected from the group consisting of titanium group elements in Group 4A of the Periodic Table, via an esterification reaction or an ester exchange reaction, wherein the content of copolymerized components other than the terephthalic acid component and the ethylene glycol component, is not more than 4 mole % based on the total dicarboxylic acid component, and in a molded product with a thickness of 3.5 mm injection-molded at 280° C., the difference between the absorbance at a wavelength of 395 nm and the absorbance at a wavelength of 800 nm is at least 0.08, and the difference between the absorbance at a wavelength of 500 nm and the absorbance at a wavelength of 800 nm is at most 0.05.

    摘要翻译： 在（1）至少一种成分的化合物的存在下，将含有对苯二甲酸或其成酯衍生物的二羧酸成分作为主要成分，以乙二醇为主要成分的二醇成分进行缩聚， 通过酯化反应或酯交换反应选自周期表4A族中的钛族元素，其中除对苯二甲酸成分和乙二醇成分以外的共聚成分的含量为4以下 摩尔％，在280℃注射成型的厚度为3.5mm的成型品中，波长395nm处的吸光度与波长800nm处的吸光度之差 至少为0.08，波长500nm处的吸光度与波长800nm处的吸光度之差为0.05以下。

    Polyester resin and its production process
    10.
    发明授权
    Polyester resin and its production process 有权
    聚酯树脂及其生产工艺

    公开(公告)号：US06500915B1

    公开(公告)日：2002-12-31

    申请号：US09709250

    申请日：2000-11-10

    申请人： Yoshihiro Fujimori ,  Shuuji Anno ,  Masahiro Nukui

    发明人： Yoshihiro Fujimori ,  Shuuji Anno ,  Masahiro Nukui

    IPC分类号： C08G6378

    CPC分类号： C08G63/82 ,  C08G63/85 ,  C08G63/87

    摘要： The present invention relates to a polyester resin produced by polymerizing a dicarboxylic acid component comprising mainly an aromatic dicarboxylic acid or its ester forming derivative, and a diol component comprising mainly ethylene glycol in the presence of a catalyst containing a titanium compound, which polyester resin contains titanium atoms (Ti) in an amount of 0.002 to 1.0 mole based on one ton of the polyester resin and has the following properties: Intrinsic viscosity ([&eegr;], dl/g)≧0.70 Hunter's “b” value≦4 Acetaldehyde content (AA0, ppm)≦5.0.

    摘要翻译： 本发明涉及通过在主要含有芳族二羧酸或其酯形成衍生物的二羧酸组分和主要包含乙二醇的二醇组分的存在下，在含有钛化合物的催化剂中聚合制备的聚酯树脂，该聚酯树脂含有 相对于1吨聚酯树脂，钛原子（Ti）的含量为0.002〜1.0摩尔，具有以下性质：特性粘度（η，dl / g）≥0.70亨特的“b”值<= 4-乙醛含量 （AA0，ppm）<= 5.0。