利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

39 条记录 (耗时 0.013 秒)

    Polyacetal and polyketal compositions
    1.
    发明授权
    Polyacetal and polyketal compositions 失效
    聚缩醛和聚缩酮组合物

    公开(公告)号：US3997613A

    公开(公告)日：1976-12-14

    申请号：US530106

    申请日：1974-12-06

    申请人： Gerd M. Lenke ,  Kent B. McReynolds

    发明人： Gerd M. Lenke ,  Kent B. McReynolds

    IPC分类号： C08G4/00 ,  C08G75/10 ,  C07C149/14

    CPC分类号： C08G75/10 ,  C07C323/00 ,  C08G4/00 ,  Y10S524/925

    摘要： Water-insoluble compositions having substantial antioxidant activity which may be used as plasticizers are produced by liquid phase reaction of (a) dimercaptans or mercapto alcohols or combination of these with diols or polyols, (b) aldehydes and/or ketones, and (c) monomercaptans and/or mono-alcohols in the presence of an acid catalyst.

    摘要翻译： 可以用作增塑剂的具有显着抗氧化活性的水不溶性组合物是通过（a）二硫醇或巯基醇或它们与二醇或多元醇的组合，（b）醛和/或酮的液相反应制备的，和（c） 单硫醇和/或一元醇在酸催化剂存在下反应。

    Novel thia-alkanols
    4.
    发明授权
    Novel thia-alkanols 失效
    新的THIA-ALKANOLS

    公开(公告)号：US3729518A

    公开(公告)日：1973-04-24

    申请号：US3729518D

    申请日：1970-09-10

    申请人： HENKEL & CIE GMBH

    发明人： STEIN W ,  COLOGNE MULHEIM H ,  UMBACH W

    IPC分类号： C09K15/14 ,  A01N31/02 ,  B01F17/42 ,  C07C67/00 ,  C07C313/00 ,  C07C319/24 ,  C07C323/12 ,  C08K5/372 ,  C07C149/14

    CPC分类号： C10M1/08 ,  C07C323/00 ,  C08K5/372 ,  C10M2219/084 ,  C08L21/00

    摘要： NOVEL TIA-ALKANOLS OF THE FORMULA

    R-CH(-OH)-CH(-R1)-S-A

    USEFUL AS PESTICIDES, LUBRICANT ADDITIVES AND INTERMEDIATES FOR SURFACANTS AND TO A NOVEL PROCESS FOR THEIR PREPARATION.

    R-CH(-OH)-CH(-R1)-S-

    WHEREIN RI IS AN ALIPHATIC GROUP OF 1 TO 22 CARBON ATOMS, R1 IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALIPHATIC GROUP OF 1 TO 21 CARBONS WITH THE SUM OF CARBON ATOMS IN R AND R1 BEING 4 TO 22 AND R AND R1, TAKEN TOGETHER WITH THE ETHYLENE GROUP TO WHICH THEY ARE ATTACHED FORM A CYCLOALIPHATIC RING OF 6 TO 12 CARBON ATOMS AND A IS SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC AND CYCOALIPHATIC OF 6 TO 24 CARBON ATOMS OPTIONALLY SUBSTITUTED WTH ONE OR MORE GROUPS OF THE FORMULA

    Process for preparation of polymercaptans
    5.
    发明授权
    Process for preparation of polymercaptans 失效
    制备聚合物的方法

    公开(公告)号：US3728400A

    公开(公告)日：1973-04-17

    申请号：US3728400D

    申请日：1970-09-17

    申请人： BAKER CHEM CO J T

    发明人： MICHELOTTI F ,  JORDAN J ,  COOK N

    IPC分类号： C08G59/66 ,  C07C149/14 ,  C07C149/10

    CPC分类号： C07C323/00 ,  C07C321/00 ,  C08G59/66

    摘要： Polymercaptans especially suitable as epoxy resin curing agents are produced by reacting a polyhalo compound with sodium sulfhydrate in the presence of dimethyl sulfoxide, dimethylformamide, a dimethylformamide-(lower) alkyl alcohol mixture or a dimethyl sulfoxide-(lower)alkyl alcohol mixture as a solvent for the reaction system.

    摘要翻译： 特别适合作为环氧树脂固化剂的聚合硫醇通过在二甲基亚砜，二甲基甲酰胺，二甲基甲酰胺 - （低级）烷基醇混合物或二甲基亚砜 - （低级）烷基醇混合物作为溶剂的存在下使多卤化合物与硫代钠水溶液反应来制备 用于反应体系。

    Polyloxy alkylene sulfides
    6.
    发明授权
    Polyloxy alkylene sulfides 失效
    聚亚烷基硫酸盐

    公开(公告)号：US3627845A

    公开(公告)日：1971-12-14

    申请号：US3627845D

    申请日：1968-08-09

    申请人： DOW CHEMICAL CO

    发明人： HICKNER RICHARD A ,  YOUNG HOWARD L

    IPC分类号： C07C317/18 ,  C07C323/12 ,  C07C149/14

    CPC分类号： C07C323/12 ,  C07C317/18

    摘要： Compounds of the formula

    WHEREIN R is an alkyl or aralkyl group; each n is an integer of from five to 50; A is a sulfide, sulfoxide or sulfone group; R1 is hydrogen or a lower alkyl group; and Ro is a halophenyl group, an alkyl or aralkyl group, halophenylethyl or halobenzyl group, or a group of the formula

    WHEREIN R, R1 and n are defined above. These compositions have surfactant and/or biological utilities.

    Aminopeptidase inhibitors
    8.
    发明授权
    Aminopeptidase inhibitors 失效
    氨肽酶抑制剂

    公开(公告)号：US4720585A

    公开(公告)日：1988-01-19

    申请号：US777122

    申请日：1985-09-18

    申请人： Jollie D. Godfrey Jr. ,  Eric M. Gordon

    发明人： Jollie D. Godfrey Jr. ,  Eric M. Gordon

    IPC分类号： C07C149/24 ,  C07C149/14

    CPC分类号： C07C323/25 ,  C07C323/29 ,  C07D209/14 ,  C07D233/64

    摘要： Aminopeptidase inhibitory activity is exhibited by compounds having the formula ##STR1## wherein R.sub.1 is hydrogen, alkyl, carboxyalkyl, halo-substituted alkyl, hydroxyalkyl, aminoalkyl, mercaptoalkyl, alkylthioalkyl, (cycloalkyl)alkyl, (heteroaryl)alkyl, arylalkyl, carbamoylalkyl, guanidinylalkyl or heteroaryl; andR.sub.2 and R.sub.3 are each independently hydrogen, alkyl, cycloalkyl, hydroxyalkyl, aminoalkyl, aryl, arylalkyl, heteroaryl or heteroarylalkyl.

    摘要翻译： 氨基肽酶抑制活性由具有下式的化合物表现：其中R1是氢，烷基，羧基烷基，卤素取代的烷基，羟基烷基，氨基烷基，巯基烷基，烷基硫代烷基，（环烷基）烷基，（杂芳基）烷基，芳基烷基，氨基甲酰基烷基，胍基烷基 或杂芳基; 并且R 2和R 3各自独立地为氢，烷基，环烷基，羟基烷基，氨基烷基，芳基，芳基烷基，杂芳基或杂芳基烷基。

    Liquid 2-hydroxy-4-methylthiobutyric acid and process for the preparation thereof
    9.
    发明授权
    Liquid 2-hydroxy-4-methylthiobutyric acid and process for the preparation thereof 失效
    液体2-羟基-4-甲硫基丁酸及其制备方法

    公开(公告)号：US4524077A

    公开(公告)日：1985-06-18

    申请号：US550857

    申请日：1983-11-14

    申请人： Dennis A. Ruest ,  Masaharu Takano ,  Lawrence R. Wolf

    发明人： Dennis A. Ruest ,  Masaharu Takano ,  Lawrence R. Wolf

    IPC分类号： A23K1/16 ,  A01N37/02 ,  A23K1/22 ,  C07C20060101 ,  C07C67/00 ,  C07C319/20 ,  C07C323/52 ,  C07C325/00 ,  C07C327/06 ,  C12P11/00 ,  C07C149/14

    CPC分类号： C07C319/28 ,  A23K20/105 ,  A23K20/142 ,  A23K50/75 ,  C07C319/20

    摘要： A process for the preparation of 2-hydroxy-4-methylthiobutyric acid having improved color, odor and lower viscosity. 2-hydroxy-4-methylthiobutyric acid which is also known as 2-hydroxy-4-(methylthio) butanoic acid, is hydrolyzed with sulfuric acid having an initial strength of between about 50% by weight and about 70% by weight on an organic-free basis, thereby producing an intermediate aqueous hydrolysis product solution containing 2-hydroxy-4-methylthiobutyramide. The 2-hydroxy-4-methylthiobutyramide is hydrolyzed with sulfuric acid having a strength of between about 30% by weight and about 50% by weight on an organic-free basis to produce an aqueous hydrolyzate containing 2-hydroxy-4-methylthiobutyric acid. The hydrolyzate solution is contacted with a substantially water-immiscible organic solvent in a liquid-liquid extraction system to produce an extract comprising the solvent and 2-hydroxy-4-methylthiobutyric acid transferred from the hydrolyzate. The acid product is then recovered from the extract.

    摘要翻译： 具有改善的颜色，气味和较低粘度的2-羟基-4-甲硫基丁酸的制备方法。 也称为2-羟基-4-（甲硫基）丁酸的2-羟基-4-甲硫基丁酸用初始强度为约50重量％至约70重量％的硫酸在有机 从而产生含有2-羟基-4-甲硫基丁酰胺的中间水解产物水溶液。 2-羟基-4-甲基硫代丁酰胺用无机基的强度为约30重量％至约50重量％的硫酸水解，得到含有2-羟基-4-甲硫基丁酸的含水分解产物。 水解液与液 - 液萃取系统中基本上与水不混溶的有机溶剂接触以产生包含溶剂和从水解产物转移的2-羟基-4-甲硫基丁酸的提取物。 然后从提取物中回收酸产物。