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58 条记录 (耗时 0.036 秒)

    Process for preparing bisphenol sulfone derivatives
    51.
    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。

    Aromatic hydroxycarboxylic acid resins and their use
    52.
    发明授权
    Aromatic hydroxycarboxylic acid resins and their use 失效
    芳香族羟基羧酸树脂及其用途

    公开(公告)号：US5798422A

    公开(公告)日：1998-08-25

    申请号：US511809

    申请日：1995-08-07

    申请人： Akio Karasawa ,  Akihiro Yamaguchi ,  Keizaburo Yamaguchi ,  Yuko Ishihara

    发明人： Akio Karasawa ,  Akihiro Yamaguchi ,  Keizaburo Yamaguchi ,  Yuko Ishihara

    IPC分类号： B41M5/155 ,  C07C65/105 ,  C07C65/24 ,  C08G61/02 ,  C08L63/00 ,  G03F7/023 ,  C08F6/00 ,  C08F6/02

    CPC分类号： G03F7/0236 ,  B41M5/155 ,  C07C65/105 ,  C07C65/24 ,  C08G61/02 ,  C08L63/00 ,  G03F7/0233

    摘要： Disclosed are an aromatic hydroxycarboxylic acid resin represented by the following formula (1): ##STR1## wherein each A group is the same or different and individually represents a substituted or unsubstituted phenylene or naphthylene group, R.sup.1 represents a hydrogen atom or a C.sub.1-4 alkyl group, R.sup.2 represents a hydrogen atom or a C.sub.1-10 alkyl, C.sub.1-10 alkoxyl, nitro or hydroxyl group, l stands for an integer of 0-100, m stands for an integer of 0-20 and n stands for an integer of 0-3 with the proviso that m stands for an integer other than 0 when all of the A group represent an unsubstituted or substituted a group, a preparation process thereof and use of the same.

    摘要翻译： 公开了由下式（1）表示的芳族羟基羧酸树脂：其中每个A基团相同或不同，并且各自表示取代或未取代的亚苯基或亚萘基 R 1表示氢原子或C 1-4烷基，R 2表示氢原子或C 1-10烷基，C 1-10烷氧基，硝基或羟基，l表示0〜100的整数，m表示 0〜20的整数，n表示0-3的整数，条件是当A组全部为未取代或取代的基团时，m表示0以外的整数，其制备方法及其用途 。

    Polyimide
    53.
    发明授权
    Polyimide 失效
    聚酰亚胺

    公开(公告)号：US5484880A

    公开(公告)日：1996-01-16

    申请号：US354806

    申请日：1994-12-13

    申请人： Wataru Yamashita ,  Yuichi Okawa ,  Shoji Tamai ,  Mitsunori Matsuo ,  Tsutomu Ishida ,  Keizaburo Yamaguchi ,  Akihiro Yamaguchi

    发明人： Wataru Yamashita ,  Yuichi Okawa ,  Shoji Tamai ,  Mitsunori Matsuo ,  Tsutomu Ishida ,  Keizaburo Yamaguchi ,  Akihiro Yamaguchi

    IPC分类号： C07C225/22 ,  C07B61/00 ,  C07C221/00 ,  C08G73/10 ,  C08L79/08 ,  C08G77/10 ,  C08G69/26

    CPC分类号： C08G73/1071 ,  C08G73/1014 ,  C08G73/105 ,  C08G73/1064 ,  C08L79/08

    摘要： The present invention relates to an amorphous polyimide or a polyimide copolymer having a requisite structural unit consisting of one or more recurring structural units represented by the formula (1): ##STR1## wherein X is a direct bond, oxygen atom or sulfur atom, and R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are individually a hydrogen atom or methyl, and Ar is a tetravalent radical having 6 to 27 carbon atoms and being selected from the group consisting of a monoaromatic radical, condensed polyaromatic radical and noncondensed polyaromatic radical having aromatic radicals connected to each other with a direct bond or a bridge member.Polyimide and the polyimide copolymer of the invention has excellent heat resistance, is outstanding in melt-flow stability, has greatly improved processability, and can be applied to structural materials, and electric- electronic appliances.

    摘要翻译： 本发明涉及具有必要结构单元的无定形聚酰亚胺或聚酰亚胺共聚物，所述结构单元由一个或多个由式（1）表示的重复结构单元：原子或硫原子组成，并且R 1，R 2，R 3和R 4分别为 氢原子或甲基，Ar是具有6至27个碳原子的四价基团，并且选自具有芳族基团的单芳族基团，缩合多芳族基团和具有直接键或桥键的彼此连接的非缩合多芳族基团 会员。 本发明的聚酰亚胺和聚酰亚胺共聚物具有优异的耐热性，熔体流动稳定性优异，加工性能大大提高，可应用于结构材料和电子电器。

    Heat sensitive recording sheet
    58.
    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。