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58 条记录 (耗时 0.027 秒)

    Process for the preparation of 2,2'-bis(4-substituted phenol)sulfides
    3.
    发明授权
    Process for the preparation of 2,2'-bis(4-substituted phenol)sulfides 失效
    制备2,2'-双（4-取代苯酚）硫化物的方法

    公开(公告)号：US4380671A

    公开(公告)日：1983-04-19

    申请号：US288428

    申请日：1981-07-30

    申请人： Akihiro Yamaguchi ,  Tadashi Kobayashi ,  Keizaburo Yamaguchi ,  Hisamichi Murakami

    发明人： Akihiro Yamaguchi ,  Tadashi Kobayashi ,  Keizaburo Yamaguchi ,  Hisamichi Murakami

    IPC分类号： C07C20060101 ,  C07C319/14 ,  C07C321/30 ,  C08K5/13 ,  C08K5/36 ,  C10M169/00 ,  C07C149/36

    CPC分类号： C07C323/00

    摘要： Disclosed is a process for the preparation of 2,2'-bis(4-substituted phenol)sulfides which comprises reacting a 4-substituted phenol with sulfur dichloride in a hydrocarbon solvent at a temperature of from -10.degree. to 40.degree. C. in the presence of a Lewis acid catalyst. For example, 2,2'-bis(4-cumylphenol)-sulfide, i.e. 2,2'-bis(4-.alpha.,.alpha.-dimethyl benzyl-phenol)monosulfide, which is a novel compound can be prepared by reacting 4-cumylphenol with sulfur dichloride in benzene at a temperature of from 0.degree.to 10.degree. C. in the presence of zinc chloride.

    摘要翻译： 公开了一种制备2,2'-双（4-取代苯酚）硫化物的方法，其包括使4-取代的苯酚与二氯化硫在烃溶剂中在-10℃至40℃的温度下反应 存在路易斯酸催化剂。 例如，作为新化合物的2,2'-双（4-枯基苯酚）硫化物，即2,2'-双（4-甲基-α，α-二甲基苄基 - 苯酚）单硫化物可以通过使4- 异丙苯酚与二氯化硫在苯中，在氯化锌存在下，在0〜10℃的温度下进行。

    Process for preparing bisphenol sulfone derivatives
    4.
    发明授权
    Process for preparing bisphenol sulfone derivatives 失效
    制备双酚砜衍生物的方法

    公开(公告)号：US4287366A

    公开(公告)日：1981-09-01

    申请号：US128712

    申请日：1980-03-10

    申请人： Akihiro Yamaguchi ,  Keizaburo Yamaguchi ,  Hisamichi Murakami ,  Tadashi Kobayashi

    发明人： Akihiro Yamaguchi ,  Keizaburo Yamaguchi ,  Hisamichi Murakami ,  Tadashi Kobayashi

    IPC分类号： C07C315/02 ,  C07C317/22 ,  C07C147/10

    CPC分类号： C07C315/02

    摘要： A process for preparing bisphenol sulfone derivatives represented by the general formula (I) ##STR1## where R stands for hydrogen, a halogen, an alkyl radical, a cycloalkyl radical, an aryl radical, an aralkyl radical, hydroxyl group, an alkoxy radical, allyloxy group, carboxyl group, or a carboalkoxy radical, m is an integer of from 1 to 3, and when m is 2 or more, R may be identical to or different from each other, and adjacent Rs may be combined to form a ring, by oxidizing with hydrogen peroxide a compound represented by the general formula (II) ##STR2## where R and m have the same meanings as defined for the formula (I), and n is zero or 1, in the presence of an alkali in an amount more than the equimolar amount thereof relative to said compound in water and/or an organic solvent which do not form any organic peracids under reaction conditions.

    摘要翻译： 一种制备由通式（I）表示的双酚砜衍生物的方法，其中R代表氢，卤素，烷基，环烷基，芳基，芳烷基，羟基， 烷氧基，烯丙氧基，羧基或烷氧羰基，m为1〜3的整数，当m为2以上时，R可以相同也可以不同，相邻的Rs可以组合成 形成环，通过用过氧化氢氧化由通式（II）表示的化合物（II）其中R和m具有与式（I）所定义相同的含义，并且n为0或1，在 在水和/或在反应条件下不形成任何有机过酸的有机溶剂中，相对于所述化合物，碱的存在量超过等摩尔量。

    Heat sensitive recording sheet
    6.
    发明授权
    Heat sensitive recording sheet 失效
    热敏记录纸

    公开(公告)号：US4312522A

    公开(公告)日：1982-01-26

    申请号：US177999

    申请日：1980-08-14

    申请人： Akihiro Yamaguchi ,  Keizaburo Yamaguchi ,  Hisamichi Murakami

    发明人： Akihiro Yamaguchi ,  Keizaburo Yamaguchi ,  Hisamichi Murakami

    IPC分类号： B41M5/333 ,  B41M5/18 ,  B41M5/22

    CPC分类号： B41M5/3336 ,  Y10S428/913 ,  Y10S428/914

    摘要： This invention discloses a heat sensitive recording sheet which contains, as a developer, at least one of the compounds represented by the general formula ##STR1## where R represents hydrogen, an alkyl radical of from 1 to 12 carbon atoms, a cycloalkyl radical of from 3 to 10 carbon atoms, an aralkyl radical of from 7 to 10 carbon atoms, and a phenyl radical, and may be identical to or different from each other, n is zero, or an integer of 1 or 2.The heat sensitive recording sheet of this invention has a sharper rise in developed color density and is advantageous for its handling and storage as well as gives a developed color image having an excellent fastness to light and water resistance in addition to very little decrease in density of the developed color image with time.

    摘要翻译： 本发明公开了一种热敏记录片材，其包含作为显影剂的至少一种由通式“IMAGE”表示的化合物，其中R表示氢，1至12个碳原子的烷基， 3至10个碳原子，7至10个碳原子的芳烷基和苯基，并且可以彼此相同或不同，n为零或1或2的整数。热敏记录片材 本发明的显色浓度明显提高，并且其处理和储存有利，并且除了显影的彩色图像的密度几乎没有降低之外，还提供了具有优异的耐光和耐水牢度的显影彩色图像 时间。

    Polyimide resin composition
    7.
    发明授权
    Polyimide resin composition 失效
    聚酰亚胺树脂组合物

    公开(公告)号：US5494996A

    公开(公告)日：1996-02-27

    申请号：US277568

    申请日：1994-07-20

    申请人： Shoji Tamai ,  Yuichi Okawa ,  Wataru Yamashita ,  Yoshihiro Sakata ,  Hideaki Oikawa ,  Keizaburo Yamaguchi ,  Tadashi Asanuma ,  Akihiro Yamaguchi ,  Mitsunori Matsuo

    发明人： Shoji Tamai ,  Yuichi Okawa ,  Wataru Yamashita ,  Yoshihiro Sakata ,  Hideaki Oikawa ,  Keizaburo Yamaguchi ,  Tadashi Asanuma ,  Akihiro Yamaguchi ,  Mitsunori Matsuo

    IPC分类号： C08L71/10 ,  C08G73/10 ,  C08L71/08 ,  C08L79/04 ,  C08L79/08

    CPC分类号： C08L79/08 ,  C08L79/04

    摘要： A polyimide resin composition substantially comprising 1 99.9.about.50 parts by weight of polyimide having recurring structural units of the formula ##STR1## and 2 0.1.about.50 parts by weight of a polyimide which improved melt flowability and is prepared by using 1,3-bis(3-aminophenoxy)benzene or 6,6'-bis(3-aminophenoxy)-3,3,3',3'-tetramethyl-1,1'-spirobiindane as essential diamine component, or polyether pyridine having recurring structural units of the formula: ##STR2## is disclosed. Further, a polyimide based resin composition comprising the polyimide resin composition or a polyimide copolymer obtained by using the above diamines and a fibrous reinforcement is disclosed. These compositions have remarkably good processability, excellent heat stability and repeated fatigue characteristics.

    摘要翻译： 一种聚酰亚胺树脂组合物，其基本上包含+ E，crc / 1 / 99.9差异50重量份具有式（1）的重复结构单元的聚酰亚胺和+ E，crc / 2 / 0.1差异50重量份的 通过使用1,3-双（3-氨基苯氧基）苯或6,6'-双（3-氨基苯氧基）-3,3,3'，3'-四甲基-1,1' - 螺环丁烷作为必需二胺组分，或具有下式重复结构单元的聚醚吡啶：。 此外，公开了一种聚酰亚胺系树脂组合物，其包含使用上述二胺和纤维增强剂而得到的聚酰亚胺树脂组合物或聚酰亚胺共聚物。 这些组合物具有非常好的加工性能，优异的热稳定性和重复的疲劳特性。

    Aromatic diamine intermediates useful in the preparation of polyimides
    9.
    发明授权
    Aromatic diamine intermediates useful in the preparation of polyimides 失效
    用于制备聚酰亚胺的芳族二胺中间体

    公开(公告)号：US5354890A

    公开(公告)日：1994-10-11

    申请号：US80772

    申请日：1993-06-24

    申请人： Shoji Tamai ,  Wataru Yamashita ,  Yuichi Okawa ,  Yuko Ishihara ,  Keizaburo Yamaguchi ,  Akihiro Yamaguchi

    发明人： Shoji Tamai ,  Wataru Yamashita ,  Yuichi Okawa ,  Yuko Ishihara ,  Keizaburo Yamaguchi ,  Akihiro Yamaguchi

    IPC分类号： C07C225/22 ,  C08G73/10 ,  C08G73/14

    CPC分类号： C07C225/22 ,  C08G73/1014 ,  C08G73/1017 ,  C08G73/1039 ,  C08G73/1067 ,  C08G73/14

    摘要： A heat-resistant and thermoplastic polyimide which has low dielectric characteristics and recurring structural units of the following formula: ##STR1## wherein R is a tetravalent radical having from 2 to 27 carbon atoms and selected from the group consisting of an aliphatic radical, alicyclic radical, monoaromatic radical, condensed polyaromatic radical and noncondensed aromatic radical connected each other with a direct bond or a bridge member; aromatic diamines which are useful for the raw material monomers of the polyimide and have following formulas: ##STR2## and a process for preparing the polyimide of the above formula by reacting these aromatic diamines with a tetracarboxylic dianhydride in the presence of an aromatic dicarboxylic anhydride or aromatic monoamine, and successively thermally or chemically imidizing the resultant polyamic acid; are disclosed.

    摘要翻译： 具有低介电特性和具有下式的重复结构单元的耐热热塑性聚酰亚胺：其中R是具有2至27个碳原子并且选自脂族基团的四价基团 ，脂环族基团，单芳族基团，稠合多芳族基团和非缩合芳族基团彼此直接连接或桥接成员; 芳族二胺可用于聚酰亚胺的原料单体，具有以下分子式：＆lt; IMAGE＆gt;（IA）和＆lt; IMAGE＆gt;（IB）和通过使这些芳族二胺与四羧酸 二酐在芳族二羧酸酐或芳族单胺的存在下，并依次热或化学酰亚胺化所得聚酰胺酸; 被披露。