知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

59 条记录 (耗时 0.029 秒)

    Optically active block polyester copolymer and method for production thereof
    1.
    发明授权
    Optically active block polyester copolymer and method for production thereof 失效
    光学活性嵌段聚酯共聚物及其制备方法

    公开(公告)号：US5840811A

    公开(公告)日：1998-11-24

    申请号：US786253

    申请日：1997-01-22

    申请人： Yoji Hori ,  Tohru Kobayashi ,  Hideyuki Hongo ,  Akio Yamaguchi ,  Yoko Takahashi ,  Takashi Imai ,  Toshimitsu Hagiwara

    发明人： Yoji Hori ,  Tohru Kobayashi ,  Hideyuki Hongo ,  Akio Yamaguchi ,  Yoko Takahashi ,  Takashi Imai ,  Toshimitsu Hagiwara

    IPC分类号： C08G63/06 ,  C08G63/08 ,  C08G63/82 ,  C08L101/16 ,  C08G63/85

    CPC分类号： C08G63/823 ,  C08G63/08

    摘要： An optically active block polyester copolymer formed of structural units represented by the following general formulas (I) and (II): ##STR1## wherein represents for an asymmetric carbon atom and m and n each represents a natural number in the range of from 300 to 5000 is obtained by subjecting an optically active butyrolactone and a species of lactone other than the optically active butyrolactone to sequential ringopening copolymerization in the presence of a catalyst. This optically active block polyester copolymer possesses a high molecular weight and a high melting point (not less than 130.degree. C.) and forms a biodegradable and hydrolyzable material of high strength capable of tolerating the impacts of actual use.

    摘要翻译： 由以下通式（I）和（II）表示的结构单元形成的光学活性嵌段聚酯共聚物：式（I）公制碳原子，m和n各自表示300-5000的自然数 是通过使光学活性丁内酯和除光学活性丁内酯以外的其他种类的内酯在催化剂存在下进行顺序环环化共聚获得的。 该光学活性嵌段聚酯共聚物具有高分子量和高熔点（不低于130℃），并形成能够耐受实际影响的高强度的可生物降解和可水解的材料。

    Biodegradable high molecular composition
    2.
    发明授权
    Biodegradable high molecular composition 失效
    可生物降解的高分子组成

    公开(公告)号：US5824751A

    公开(公告)日：1998-10-20

    申请号：US592518

    申请日：1996-01-26

    申请人： Yoji Hori ,  Yoko Takahashi ,  Hideyuki Hongo ,  Akio Yamaguchi ,  Toshimitsu Hagiwara

    发明人： Yoji Hori ,  Yoko Takahashi ,  Hideyuki Hongo ,  Akio Yamaguchi ,  Toshimitsu Hagiwara

    IPC分类号： C08G63/06 ,  C08G63/08 ,  C08G63/64

    CPC分类号： C08G63/08 ,  C08G63/06 ,  C08G63/64

    摘要： The biodegradable composition comprises at least poly(beta-hydroxybutyric acid) or a biodegradable copolymer thereof and a stereospecifically regular block copolymer having the structure units of formula (I): ##STR1## where R1 is a hydrocarbon group having 1 to 14 carbon atoms, optionally including double bonds, oxygen atoms or both of them; and m and n are respectively an integer ranging from 300 to 5,000, or having the structure units of formula (II): ##STR2## where R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are either a hydrogen atom or a methyl group; and m and n are respectively an integer ranging from 300 to 5,000.

    摘要翻译： 可生物降解组合物至少包含聚（β-羟基丁酸）或其可生物降解的共聚物和具有式（I）结构单元的立体专一规则嵌段共聚物：其中R 1为具有1至14个碳原子的烃基 碳原子，任选地包括双键，氧原子或它们两者; m和n分别为300-5000的整数，或具有式（II）的结构单元：其中R 2，R 3，R 4和R 5为氢原子或甲基; m和n分别为300-5000的整数。

    Block copolymer of polyesters and polycarbonates and process for preparation thereof
    3.
    发明授权
    Block copolymer of polyesters and polycarbonates and process for preparation thereof 失效
    聚酯和聚碳酸酯的嵌段共聚物及其制备方法

    公开(公告)号：US5631344A

    公开(公告)日：1997-05-20

    申请号：US549544

    申请日：1995-10-27

    申请人： Hideyuki Hongo ,  Akio Yamaguchi ,  Yoji Hori ,  Toshimitsu Hagiwara ,  Yoko Takahashi

    发明人： Hideyuki Hongo ,  Akio Yamaguchi ,  Yoji Hori ,  Toshimitsu Hagiwara ,  Yoko Takahashi

    IPC分类号： C08G63/64 ,  C08G63/85 ,  C08G64/18 ,  C08L101/16 ,  C08G63/78

    CPC分类号： C08G63/64 ,  C08G64/18

    摘要： The block copolymer of polyesters and polycarbonates comprises at least one of each of the constituting units of (I) and (II) having the general formulae: ##STR1## where the sign * indicates an asymmetric carbon atom; R.sub.1, R.sup.2, R.sup.3 and R.sup.4 are either a hydrogen atom or a methyl group; m and n are respective a natural numbers ranging from 300 to 5000: The block copolymer is obtained by successive ring-opening and copolymerization of optically active .beta.-butyrolactones and cyclic carbonates in the presence of a catalyst.The block polymer obtained has high molecular weight and high melting temperature, and can thus be used as a high strength material for practical use and which has bio-degradable and hydrolyzable nature.

    摘要翻译： 聚酯和聚碳酸酯的嵌段共聚物包含具有以下通式的（I）和（II）的每个构成单元中的至少一个：符号*表示不对称碳 原子; R1，R2，R3和R4是氢原子或甲基; m和n分别为300至5000的自然数：嵌段共聚物通过在催化剂存在下连续的开环和共聚光学活性的β-丁内酯和环状碳酸酯而获得。 所得到的嵌段聚合物具有高分子量和高熔点温度，因此可用作实际使用的高强度材料，其具有生物降解性和水解性。

    Process for producing aromatic amines
    4.
    发明授权
    Process for producing aromatic amines 失效
    生产芳香胺的方法

    公开(公告)号：US06365776B1

    公开(公告)日：2002-04-02

    申请号：US09946468

    申请日：2001-09-06

    申请人： Mitsuhiko Fujiwara ,  Ken Suzuki ,  Tohru Kobayashi ,  Yoji Hori ,  Toshimitsu Hagiwara

    发明人： Mitsuhiko Fujiwara ,  Ken Suzuki ,  Tohru Kobayashi ,  Yoji Hori ,  Toshimitsu Hagiwara

    IPC分类号： C07C21100

    CPC分类号： C07C209/10 ,  C07C211/54

    摘要： The present invention provides an activator in arylamination using a palladium compound as a catalyst, which is superior to conventional phosphines in stability and performance. With the phosphine sulfide as an activator, an arylamination reaction achieves improved selectivity to produce a desired aromatic amine in an obviously increased yield as compared with a reaction using the corresponding phosphine compound. Moreover, the phosphine sulfide of the invention is impervious to oxidation and exists stably in air and therefore sufficiently withstands use on an industrial scale.

    摘要翻译： 本发明提供使用钯化合物作为催化剂的芳基化活化剂，其在稳定性和性能方面优于常规膦。 与使用相应的膦化合物的反应相比，以硫化氢作为活化剂，芳基化反应实现了以明显增加的产率产生所需芳族胺的选择性。 此外，本发明的硫化膦不能氧化，在空气中稳定地存在，因此能够充分地耐受工业规模的使用。

    2,2(diarlyl)vinylphosphine compound, palladium catalyst thereof, and process for producing arylamine, diaryl, or arylalkyne with the catalyst
    6.
    发明授权
    2,2(diarlyl)vinylphosphine compound, palladium catalyst thereof, and process for producing arylamine, diaryl, or arylalkyne with the catalyst 有权
    2,2（二芳基）乙烯基膦化合物，其钯催化剂，以及用催化剂制备芳基胺，二芳基或芳基炔的方法

    公开(公告)号：US06455720B1

    公开(公告)日：2002-09-24

    申请号：US09891304

    申请日：2001-06-27

    申请人： Ken Suzuki ,  Tohru Kobayashi ,  Takenobu Nishikawa ,  Yoji Hori ,  Toshimitsu Hagiwara

    发明人： Ken Suzuki ,  Tohru Kobayashi ,  Takenobu Nishikawa ,  Yoji Hori ,  Toshimitsu Hagiwara

    IPC分类号： C07F950

    CPC分类号： C07F15/006 ,  C07B37/04 ,  C07C1/321 ,  C07C2531/24 ,  C07F9/5013 ,  C07F15/0066

    摘要： A novel 2,2-(diaryl)vinylphosphine compound represented by the following general formula (1): (wherein R1 is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alicyclic group having 5 to 7 carbon atoms, etc.; R2, R3, R4, R5, R6, and R7 may be the same or different and each is an alkyl group having 1 to 6 carbon atoms, an alicyclic group having 5 to 7 carbon atoms, etc., provided that R4 and R5 taken together and/or R6 and R7 taken together may represent a fused benzene ring, a substituted fused benzene ring, a trimethylene group, etc.; and p, q, r, and s each is 0 to 5, provided that p+q and r+s each is in the range of from 0 to 5); a palladium-phosphine catalyst obtained by causing a palladium compound to act on the novel 2,2-(diaryl)vinylphosphine compound; and a process for obtaining an arylamine, a diaryl and an arylalkyne in the presence of the palladium-phosphine catalyst.

    摘要翻译： 由以下通式（1）表示的新型2,2-（二芳基）乙烯基膦化合物：其中，R 1为氢原子，碳原子数1〜6的烷基，碳原子数5〜7的脂环族基等 R 2，R 3，R 4，R 5，R 6和R 7可以相同或不同，各自为碳原子数为1〜6的烷基，碳原子数5〜7的脂环族基等。 R 5和R 6一起代表稠合苯环，取代稠合苯环，三亚甲基等; p，q，r和s各自为0至5，条件是p + q和r + s各自在0至5的范围内）; 通过使钯化合物作用于新的2,2-（二芳基）乙烯基膦化合物而获得的钯 - 膦催化剂; 以及在钯 - 膦催化剂存在下获得芳基胺，二芳基和芳基炔的方法。

    Process for producing &bgr;-butyrolactone homopolymer or copolymer
    8.
    发明授权
    Process for producing &bgr;-butyrolactone homopolymer or copolymer 失效
    生产β-丁内酯均聚物或共聚物的方法

    公开(公告)号：US06545112B2

    公开(公告)日：2003-04-08

    申请号：US09233204

    申请日：1999-01-19

    申请人： Yoji Hori ,  Yoshiharu Gonda ,  Toshimitsu Hagiwara

    发明人： Yoji Hori ,  Yoshiharu Gonda ,  Toshimitsu Hagiwara

    IPC分类号： C08F12400

    CPC分类号： C08G63/823 ,  C08G61/08 ,  C08G63/08

    摘要： The object of the invention is to provides a process in which a high-molecular-weight &bgr;-butyrolactone homopolymer or copolymer being biodegradable, absorbable into the living body, useful as a functional polymeric material and superior in physical characteristics is produced with high yield and good productivity. This object is solved by a process for producing the homopolymer or copolymer of the invention, which comprises ring-opening polymerization of sole &bgr;-butyrolactone subjected previously to acid removal and dehydration treatment, or of said &bgr;-butyrolactone with other lactones, in the presence of a tin compound represented by the following formula (1) and/or formula (2): wherein R1 and R2 and R4 to R7 independently represent an alkyl group containing 1 to 12 carbon atoms which may have a branched chain, or a cycloalkyl group containing 5 to 7 carbon atoms, or a phenyl or naphthyl group which may have a substituent group, R3 represents an alkylene group containing 2 to 12 carbon atoms which may have a substituent group, a cyclopentane-1,2-ylene group or a cyclohexane-1,2-ylene group, and n is an integer of 1 to 10.

    摘要翻译： 本发明的目的是提供一种方法，其中生产可降解的可分解生物降解的高分子量β-丁内酯均聚物或共聚物可用作生物体，用作功能性聚合物材料并且具有优异的物理特性，其产率高， 良好的生产力。 该目的通过本发明的均聚物或共聚物的制备方法来解决，该方法包括先前进行酸去除和脱水处理的底部β-丁内酯或所述β-丁内酯与其它内酯的开环聚合， 的由下式（1）和/或式（2）表示的锡化合物：其中R 1和R 2和R 4至R 7独立地表示可以具有支链的含有1至12个碳原子的烷基或环烷基 或者可以具有取代基的苯基或萘基，R3表示可以具有取代基的含有2〜12个碳原子的亚烷基，环戊烷-1,2-亚基或环己烷 -1,2-亚基，n为1〜10的整数。

    Ruthenium metathesis catalyst and method for producing olefin reaction product by metathesis reaction using the same
    9.
    发明授权
    Ruthenium metathesis catalyst and method for producing olefin reaction product by metathesis reaction using the same 失效
    钌复分解催化剂及使用其的复分解反应产生烯烃反应产物的方法

    公开(公告)号：US06175047B1

    公开(公告)日：2001-01-16

    申请号：US09219351

    申请日：1998-12-23

    申请人： Yoji Hori ,  Yukiharu Iwaya ,  Tsutomu Hashimoto ,  Toshimitsu Hagiwara

    发明人： Yoji Hori ,  Yukiharu Iwaya ,  Tsutomu Hashimoto ,  Toshimitsu Hagiwara

    IPC分类号： C07C604

    CPC分类号： C07C6/04 ,  B01J31/0231 ,  B01J31/2286 ,  B01J31/2295 ,  B01J31/24 ,  B01J31/2404 ,  B01J31/30 ,  B01J2231/14 ,  B01J2231/543 ,  B01J2531/821 ,  C07C2531/24

    摘要： The invention has an object of safely and simply preparing a large amount of a ruthenium metathesis catalyst, which is used as a catalyst for a carbon-carbon bond formation using, particularly, a metathesis reaction. The metathesis catalyst has the following complex composition (A) or (B). The composition (A) includes RuX12(arene)(PR1R2R3) and R4CHX22, R5C≡CH or R4CHX2 and a reducing agent, wherein X1 and X2 respectively are a halogen atom; arene is a hydrocarbon having a benzene ring; R1, R2 and R3, which may be the same or different, respectively are an alkyl group having 1-8 carbon atoms, a cycloalkyl group having 3-8 carbon atoms or an optionally substituted aryl group, wherein the substituent group is an alkyl group having 1-8 carbon atoms, an alkoxy group having 1-8 carbon atoms, an alkylamino group having 1-8 carbon atoms or a halogen atom; R4 is an alkyl group which has 1-8 carbon atoms and may have an ether bond or an ester bond, an optionally subsituted aryl group, wherein the substituent group is a halogen atom or a hydroxyl group; or cycloalkyl group having 3-8 carbon atoms; and R5 is an optionally substituted alkyl group which has 1-8 carbon atoms and may have an ether bond or an ester bond, wherein the substituent group is a halogen atom or a hydroxyl group, an aryl group or a cycloalkyl group having 3-8 carbon atoms. The composition B includes [RuX12(arene)]2, PR1R2R3, R5C≡CH or R4CHX2 and a reducing agent, wherein X1, arene, R1, R2, R3, R4 and R5 are the same as defined above.

    摘要翻译： 本发明的目的是安全简单地制备大量的钌复分解催化剂，其用作碳 - 碳键形成催化剂，特别是用于复分解反应。 复分解催化剂具有以下复合组成（A）或（B）。 组合物（A）包括RuX12（芳烃）（PR1R2R3）和R4CHX22，R5C = CH或R4CHX2和还原剂，其中X1和X2分别是卤素原子; 芳烃是具有苯环的烃; R 1，R 2和R 3可以相同或不同，分别为具有1-8个碳原子的烷基，具有3-8个碳原子的环烷基或任选取代的芳基，其中取代基是烷基 具有1-8个碳原子，具有1-8个碳原子的烷氧基，具有1-8个碳原子的烷基氨基或卤素原子; R4是具有1-8个碳原子并且可以具有醚键或酯键的烷基，任选取代的芳基，其中取代基是卤素原子或羟基; 或具有3-8个碳原子的环烷基; R5是具有1-8个碳原子并且可以具有醚键或酯键的任意取代的烷基，其中取代基是卤素原子或羟基，芳基或具有3-8个碳原子的环烷基 碳原子。 组合物B包括[RuX 12（芳烃）] 2，PR 1 R 2 R 3，R 5 C = CH或R 4 CHX 2和还原剂，其中X 1，R 6，R 1，R 2，R 3，R 4和R 5与上述定义相同。