中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

72 records (took 0.016 seconds)

    Method for the preparation of imidazoles
    11.
    发明授权
    Method for the preparation of imidazoles 失效
    咪唑的制备方法

    公开(公告)号：US4927942A

    公开(公告)日：1990-05-22

    申请号：US284884

    申请日：1988-12-15

    Applicant: George P. Speranza ,  Wei-Yang Su

    Inventor： George P. Speranza ,  Wei-Yang Su

    IPC: C07D233/54 ,  C07D233/58 ,  C07D521/00 ,  C08G59/50

    CPC classification number: C07D233/56 ,  C07D231/12 ,  C07D249/08 ,  C08G59/5073

    Abstract: This invention discloses an improvement in the method for preparation of imidazoles by dehydrogenation of imidazolines over a nickel catalyst comprising reacting the imidazoline over a nickel catalyst in combination with from 2 to 30 weight percent of a catalyst from the group consisting of copper, chromium or a combination of both at a temperature of 160.degree. C. to 250.degree. C. and a pressure of atmospheric to 500 psig.

    Abstract translation: 本发明公开了通过在镍催化剂上使咪唑啉脱氢来制备咪唑的方法的改进，包括使咪唑啉与镍催化剂结合从2-30重量％的催化剂与铜，铬或 在160℃至250℃的温度和大气压至500psig的压力下组合。

    Process for preparing N-substituted piperazines from ethylene glycol and amines
    12.
    发明授权
    Process for preparing N-substituted piperazines from ethylene glycol and amines 失效
    从乙二醇和胺制备N-取代哌嗪的方法

    公开(公告)号：US4774336A

    公开(公告)日：1988-09-27

    申请号：US914224

    申请日：1986-10-02

    Applicant: Wei-Yang Su

    Inventor： Wei-Yang Su

    IPC: C07D295/023 ,  C07D295/02

    CPC classification number: C07D295/023

    Abstract: N,N'-dialkylpiperazines are prepared by contacting ethylene glycol and a primary amine in the presence of a homogeneous ruthenium-phosphine catalyst. For example, ethylene glycol and aniline are reacted in the presence of ruthenium trichloride and triphenylphosphine to produce N,N'-diphenylpiperazine.

    Abstract translation: N，N'-二烷基哌嗪通过在均相钌 - 膦催化剂存在下使乙二醇和伯胺接触来制备。 例如，乙二醇和苯胺在三氯化钌和三苯基膦存在下反应生成N，N'-二苯基哌嗪。

    Co-production of cyclohexylamine and bis(para-aminocyclohexyl) methane
    14.
    发明申请
    Co-production of cyclohexylamine and bis(para-aminocyclohexyl) methane 失效
    共生产环己胺和双（对 - 氨基环己基）甲烷

    公开(公告)号：US20060135814A1

    公开(公告)日：2006-06-22

    申请号：US11300991

    申请日：2005-12-15

    Applicant: Wei-Yang Su ,  Ralph DiGuilio ,  Pete Morford

    Inventor： Wei-Yang Su ,  Ralph DiGuilio ,  Pete Morford

    IPC: C07C209/72

    CPC classification number: C07C209/72 ,  C07C2601/14 ,  C07C211/36

    Abstract: Embodiments of the present invention disclose a process for the co-production of bis(para-aminocyclohexyl) methane (PACM). Also disclosed are articles of manufacture made using PACM produced by methods of this invention. The methods of the present invention generally include a first mixture having methylene di-aniline (MDA) and a second aromatic amine. The first mixture has less than 15% polymeric MDA by weight and the second aromatic amine is present in an amount to render the first mixture a liquid. The first mixture is hydrogenated to produce a product mixture comprising PACM and at least one second non-aromatic amine.

    Abstract translation: 本发明的实施方案公开了双（对 - 氨基环己基）甲烷（PACM）共同生产的方法。 还公开了使用通过本发明的方法生产的PACM制造的制品。 本发明的方法通常包括具有亚甲基二苯胺（MDA）和第二芳族胺的第一混合物。 第一混合物的重量小于15％的聚合物MDA，第二芳族胺以使第一混合物成为液体的量存在。 将第一混合物氢化以产生包含PACM和至少一种第二非芳族胺的产物混合物。

    Semiconductor developing agent
    15.
    发明授权
    Semiconductor developing agent 有权
    半导体显影剂

    公开(公告)号：US06340559B1

    公开(公告)日：2002-01-22

    申请号：US09789654

    申请日：2001-02-21

    Applicant: Wei-Yang Su ,  Stephen Lee Sjoberg ,  Wheeler Conrad Crawford

    Inventor： Wei-Yang Su ,  Stephen Lee Sjoberg ,  Wheeler Conrad Crawford

    IPC: G03F732

    CPC classification number: G03F7/322

    Abstract: Provided herein are developer solutions useful in producing semiconductor-based circuit elements or precursors thereof, which contain tris-(2-hydroxyethyl)methylammonium hydroxide. Developers according to the invention are either aqueous or alcoholic solutions of tris-(2-hydroxyethyl)methylammonium hydroxide which preferably further comprise a stabilizer. Through use of the compositions provided herein, greatly reduced levels of volatile amines are released during the developing process which lessens the burden on clean room atmosphere purification equipment owing to lessened airborne impurities.

    Abstract translation: 本文提供了可用于制备含有三 - （2-羟乙基）甲基氢氧化铵的基于半导体的电路元件或其前体的显影剂溶液。 根据本发明的显影剂是三 - （2-羟乙基）甲基氢氧化铵的水溶液或醇溶液，其优选还包含稳定剂。 通过使用本文提供的组合物，在显影过程中释放大量降低的挥发性胺含量，这减少了由于空气中杂质减少而导致的洁净室大气净化设备的负担。

    Thermoplastic thermosettable polyamide from poly(oxytetramethylene) diamine and poly(oxytetramethylene) oligomer polyamine
    19.
    发明授权
    Thermoplastic thermosettable polyamide from poly(oxytetramethylene) diamine and poly(oxytetramethylene) oligomer polyamine 失效
    来自聚（氧四亚甲基）二胺和聚（氧四亚甲基）低聚物多胺的热塑性热固性聚酰胺

    公开(公告)号：US5140097A

    公开(公告)日：1992-08-18

    申请号：US608128

    申请日：1990-11-01

    Applicant: George P. Speranza ,  Wei-Yang Su ,  Robert L. Zimmerman ,  Donald H. Champion

    Inventor： George P. Speranza ,  Wei-Yang Su ,  Robert L. Zimmerman ,  Donald H. Champion

    IPC: C08G69/40

    CPC classification number: C08G69/40

    Abstract: Polyamide reaction products comprising: a dicarboxylic acid and a diamine component comprising a mixture of poly(oxytetramethylene) diamines and oligomers of said poly(oxytetramethylene) diamines,said mixture containing from about 85 to about 99.5 wt. % of said poly(oxytetramethylene) diamines and, correspondingly, from about 15 to about 0.5 wt. % of said oligomers,said poly(oxytetramethylene) diamines having the formula: ##STR1## wherein n represents 0 or a positive number having a value of 1 to about 30,said oligomers having the formula: ##STR2## wherein n represents 0 or a positive number having a value of 1 to about 30.

    Abstract translation: 聚酰胺反应产物包括：二羧酸和二胺组分，其包含聚（氧四亚甲基）二胺和所述聚（氧四亚甲基）二胺的低聚物的混合物，所述混合物含有约85-约99.5wt。 ％的所述聚（氧四亚甲基）二胺，相应地为约15至约0.5wt。 所述低聚物的所述聚（氧四亚甲基）二胺具有下式：其中n表示0或具有1至约30的值的正数，所述具有下式的低聚物：（II） 其中n表示0或具有1至约30的值的正数。

Patent Agency Ranking