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公开(公告)号：US6080833A
公开(公告)日：2000-06-27
申请号：US896008
申请日：1997-07-17
申请人： Atsuo Otsuji , Keisuke Takuma , Rihoko Suzuki , Tatsuhiro Urakami , Toshihiro Motoshima , Wataru Yamashita , Tomomi Yoshimura , Atsushi Shibuya , Yoshihiro Sakata , Hideaki Oikawa , Masahiro Ohta , Masanobu Ajioka , Masatoshi Takagi , Akio Karasawa
发明人： Atsuo Otsuji , Keisuke Takuma , Rihoko Suzuki , Tatsuhiro Urakami , Toshihiro Motoshima , Wataru Yamashita , Tomomi Yoshimura , Atsushi Shibuya , Yoshihiro Sakata , Hideaki Oikawa , Masahiro Ohta , Masanobu Ajioka , Masatoshi Takagi , Akio Karasawa
IPC分类号： C08G83/00 , C08F222/10 , C08G18/32 , C08G59/17 , C08G59/24 , C08G63/193 , C08G63/672 , C08G64/06 , C08G73/10 , G11B7/243 , G11B7/253 , G11B7/2533 , G11B7/2534 , G11B7/2535 , G11B7/2536 , G11B7/257 , G11B7/2578 , G11B7/258 , G11B7/2585 , C08G64/00
CPC分类号： G11B7/2535 , C08F222/1006 , C08G18/3215 , C08G59/1466 , C08G59/245 , C08G63/193 , C08G63/672 , C08G64/06 , C08G73/105 , G11B7/2533 , G11B7/2534 , G11B2007/24304 , G11B7/2536 , G11B7/2578 , G11B7/2585
摘要： A low-birefringent organic optical component comprising a polymer prepared by polymerizing a racemic mixture of the monomer with an asymmetric spiro ring represented by general formula (1) as an essential ingredient; wherein ring A represents a monocyclic or polycyclic organic group, wherein two ring As are mutually bound each other via a spiro bond to form a spiro ring which has a molecular asymmetric structure; n is an integer of 0 to 10; X.sub.1 and Y.sub.1 are binding groups; and Z.sub.1 is a polymerization-active group. The component has excellent transparency, mechanical strength and heat resistance, as well as a low birefringence.
摘要翻译： 一种低双折射有机光学元件，包括通过将单体的外消旋混合物与通式（1）表示的不对称螺环作为必要成分聚合而制备的聚合物; 其中环A表示单环或多环有机基团，其中两个环彼此通过螺键彼此相互结合以形成具有分子不对称结构的螺环; n为0〜10的整数。 X1和Y1是结合基团; Z1是聚合活性基团。 该组分具有优异的透明性，机械强度和耐热性，以及低双折射。
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公开(公告)号：US5916950A
公开(公告)日：1999-06-29
申请号：US895828
申请日：1997-07-17
申请人： Shoji Obuchi , Takayuki Watanabe , Yasuhiro Kitahara , Tomoyuki Nakata , Kazuhiko Suzuki , Masanobu Ajioka
发明人： Shoji Obuchi , Takayuki Watanabe , Yasuhiro Kitahara , Tomoyuki Nakata , Kazuhiko Suzuki , Masanobu Ajioka
摘要： A thermal resistant resin composition comprising 100 parts by weight of polyester (A) having 25-75% by weight of a lactic acid component consisting of 25-75% by weight of a lactic acid-based polymer (a1) and 25-75% by weight of other aliphatic polyester (a2) having a melting point of 100-250.degree. C., and 0.1-70 parts by weight of a crystalline inorganic filler (B) containing 10% by weight or more of SiO.sub.2. The thermal resistant resin composition of the invention performs following function:1) injection molding can be carried out at a mold temperature of Tg or less or around room temperature with a short molding-cycle,2) quick crystallization velocity and satisfactory crystallinity can be attained in the molding step, and3) the molded articles have, as a result, excellent thermal resistance and generate properties of low deterioration of a high polymer component and slow embrittlement in use.
摘要翻译： 一种耐热性树脂组合物，其包含100重量份具有25-75重量％的由25-75重量％的乳酸基聚合物（a1）和25-75重量％的乳酸基聚合物（a1）组成的乳酸组分的聚酯（A） 的熔点为100-250℃的其它脂族聚酯（a2）和0.1-70重量份含有10重量％以上SiO 2的结晶无机填料（B）。 本发明的耐热树脂组合物具有以下功能：1）注塑成型可以在Tg或更低的温度下或在室温附近以较短的成型周期进行，2）快速结晶速度，并且可以获得令人满意的结晶度 在模塑步骤中，和3）模塑制品具有优异的耐热性，并且产生高聚合物组分的劣化劣化和使用中的缓慢脆化性能。
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公开(公告)号：US5847011A
公开(公告)日：1998-12-08
申请号：US759953
申请日：1996-12-03
申请人： Yuji Terado , Chojiro Higuchi , Masanobu Ajioka
发明人： Yuji Terado , Chojiro Higuchi , Masanobu Ajioka
摘要： A degradable copolymer obtained by heat-dehydration reaction of aromatic polycarbonate and aliphatic polyester in the presence of a catalyst, has degradability which cannot be exhibited by common aromatic polycarbonate, transparency equal to polycarbonate, thermal resistance which cannot be exhibited by common aliphatic polyester, melt flowability superior to common aromatic polycarbonate and other excellent characteristics, and thus can be widely used for processed articles which require severe properties.
摘要翻译： 通过芳族聚碳酸酯和脂肪族聚酯在催化剂存在下进行热脱水反应获得的可降解共聚物具有普通芳族聚碳酸酯不能显示的降解性，聚碳酸酯的透明度，常用脂肪族聚酯不能显示的耐热性，熔融 流动性优于普通芳族聚碳酸酯等优异特性，因此可广泛用于需要严格性能的加工制品。
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公开(公告)号：US5780704A
公开(公告)日：1998-07-14
申请号：US68085
申请日：1993-05-28
CPC分类号： C07C51/09 , C08J11/16 , C08J2367/04 , Y02W30/705
摘要： A process for decomposing a thermoplastic polymer composition which comprises a polyhydroxycarboxylic acid base polymer as a primary component in an alkaline solution, recovering hydroxycarboxylic acid from the solution by electrodialysis or acid-precipitation and using the recovered hydroxycarboxylic acid for a polymer material, when desired, is provided.
摘要翻译： 一种在碱性溶液中分解包含聚羟基羧酸基聚合物作为主要组分的热塑性聚合物组合物的方法，通过电渗析或酸沉淀从溶液中回收羟基羧酸，并且如果需要，使用回收的羟基羧酸， 被提供。
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公开(公告)号：US5428126A
公开(公告)日：1995-06-27
申请号：US368879
申请日：1995-01-05
摘要： A preparation process of aliphatic polyester having a weight average molecular weight of 15,000 or more by conducting a direct polycondensation reaction of an aliphatic polyhydric alcohol or a mixed aliphatic polyhydric alcohol and an aliphatic polybasic acid or a mixed aliphatic polybasic acid, or additionally a hydroxycarboxylic acid or a mixed hydroxycarboxylic acid or an oligomer of the hydroxycarboxylic acid in a reaction mixture containing an organic solvent.The aliphatic polyester thus obtained contains an extremely small amount of impurities, has low color and can exhibit satisfactory strength in the form of films, filaments and other shaped articles.
摘要翻译： 通过进行脂肪族多元醇或混合脂肪族多元醇与脂肪族多元酸或混合脂肪族多元酸的直接缩聚反应，或另外添加羟基羧酸，进行重均分子量为15000以上的脂肪族聚酯的制备方法 或羟基羧酸的混合羟基羧酸或低聚物在含有机溶剂的反应混合物中。 由此获得的脂肪族聚酯含有极少量的杂质，颜色低，并且可以以薄膜，长丝和其它成型制品的形式显示令人满意的强度。
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公开(公告)号：US5387665A
公开(公告)日：1995-02-07
申请号：US202099
申请日：1994-02-25
申请人： Akira Misawa , Masanobu Ajioka
发明人： Akira Misawa , Masanobu Ajioka
CPC分类号： C08G63/06 , C08G18/4283 , G03G9/08755 , G03G9/08791 , G03G9/08795
摘要： A resin for electrophotographic toner comprising a degradable polyester resin which is an amorphous poly (.alpha.-hydroxycarboxylic acid) prepared by direct dehydration-polycondensation of an .alpha.-hydroxycarboxylic acid and having, preferably, a number-average molecular weight ranging from 2000 to 7000. A further resin for electrophotographic toner comprising a degradable polyester resin which may be prepared by reacting an amorphous or semicrystalline poly (.alpha.-hydroxycarboxylic acid), having a number-average molecular weight ranging from 1000 to 7000 or 2000 to 7000 and prepared by direct dehydration-polycondensation of an .alpha.-hydroxycarboxylic acid, with a polyol having at least three hydroxyl groups or a polycarboxylic acid having at least three carboxyl groups in the molecule and, in case of the reaction product with the polyol can further be reacted with a diisocyanate to give an urethane-modified polyester. These polyesters can likewise be used as resins for toner.
摘要翻译： 一种用于电子照相调色剂的树脂，其包含可降解聚酯树脂，其是通过α-羟基羧酸的直接脱水缩聚制备的非晶形聚（α-羟基羧酸），并且优选具有2000至7000的数均分子量。 一种用于电子照相调色剂的另一种树脂，其包含可降解的聚酯树脂，其可以通过数均分子量为1000至7000或2000至7000的无定形或半结晶聚（α-羟基羧酸）反应并通过直接脱水制备 α-羟基羧酸与分子中具有至少三个羟基的多元醇或具有至少三个羧基的多元羧酸的缩聚，以及在与多元醇反应产物的情况下，可进一步与二异氰酸酯反应， 得到氨基甲酸酯改性的聚酯。 这些聚酯也可以用作调色剂的树脂。
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公开(公告)号：US5310865A
公开(公告)日：1994-05-10
申请号：US992696
申请日：1992-12-18
IPC分类号： C08G63/06
CPC分类号： C08G63/06
摘要： A process for preparing polyhydroxycarboxylic acid by conducting a dehydration condensation of a hydroxycarboxylic acid or an oligomer thereof in a reaction mixture containing an organic solvent substantially in the absence of water and the polyhydroxycarboxylic acid thus obtained. The process provides polyhydroxycarboxylic acid having excellent properties and processability.
摘要翻译： 通过在含有基本上不存在水的有机溶剂和由此得到的聚羟基羧酸的反应混合物中进行羟基羧酸或其低聚物的脱水缩合制备聚羟基羧酸的方法。 该方法提供具有优异性能和加工性能的聚羟基羧酸。
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公开(公告)号：US5112593A
公开(公告)日：1992-05-12
申请号：US595651
申请日：1990-10-09
CPC分类号： C01B7/04 , B01J8/34 , B01J2208/00061 , B01J2208/00212 , Y10S423/16
摘要： Chlorine is produced by reacting hydrogen chloride and oxygen in the presence of a catalyst composed of a chromium oxide as a principal component. The reaction is carried out in a fluidized bed reactor equipped at vertical intervals not greater than 100 cm with a plurality of perforated horizontal plates having a perforation rate of 10-60% in a reaction zone in which the catalyst is fluidized in operation. The reaction zone is above a gas diffuser plate.
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19.发明授权Isolation of alpha-l-aspartyl-l-phenylalanine methyl ester from aqueous medium 失效从水介质中分离α-1-天冬氨酰-1-苯丙氨酸甲酯
公开(公告)号：US4897506A
公开(公告)日：1990-01-30
申请号：US256838
申请日：1988-10-12
申请人： Ryuichi Mita , Takeshi Oura , Toshio Katoh , Chojiro Higuchi , Akihiro Yamaguchi , Masanobu Ajioka
发明人： Ryuichi Mita , Takeshi Oura , Toshio Katoh , Chojiro Higuchi , Akihiro Yamaguchi , Masanobu Ajioka
CPC分类号： C07K5/0613
摘要： A method for preparing .alpha.-L-aspartyl-L-phenylalanine methyl ester having improved solubilization by the isolation thereof from an aqueous medium containing at least one additive selected from the group consisting of sodium alginate, sodium salt of carboxymethylcellulose, sodium starch glycolate and sodium polyacrylate.
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公开(公告)号：US4828815A
公开(公告)日：1989-05-09
申请号：US132665
申请日：1987-12-10
申请人： Tadamitsu Kiyoura , Masanobu Ajioka , Naoshi Fujimoto , Toshihide Suzuki , Yasuo Kogure , Tokio Nagayama , Kazuo Kanaya
发明人： Tadamitsu Kiyoura , Masanobu Ajioka , Naoshi Fujimoto , Toshihide Suzuki , Yasuo Kogure , Tokio Nagayama , Kazuo Kanaya
摘要： Chlorine can be efficiently produced at a low temperature and with a high hourly space velocity by oxidizing hydrogen chloride with an oxygen-containing gas in the presence of a catalyst obtained by calcining a compound, which has in turn been obtained by reacting chromium nitrate, chromium chloride, the chromium salt of an organic acid or the like with ammonia, or by calcining a mixture of the compound and a silicon compound, preferably, at a temperature lower than 800.degree. C.
摘要翻译： 通过在通过煅烧化合物获得的催化剂的存在下，通过用含氧气体氧化氯化氢，可以在低温和高的小时空间速度下有效地制备氯，这又是通过使硝酸铬，铬 氯化物，有机酸的铬盐等与氨的混合物，或者通过煅烧化合物和硅化合物的混合物，优选在低于800℃的温度下进行。
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