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公开(公告)号：US4197408A
公开(公告)日：1980-04-08
申请号：US847471
申请日：1977-10-31
IPC分类号： C07C245/18 , C07F1/00 , C07C51/00
CPC分类号： C07F1/005 , C07C245/18
摘要： A process for the production of an optically active chrysanthemate which comprises reacting 2,5-dimethyl-2,4-hexadiene with a diazoacetate of the formula:N.sub.2 CHCOORwherein R is selected from the group consisting of (a) cycloalkyl group with or without substituent(s) whose total carbon atom number is 5-20, (b) tertiary aralkyl group whose carbon atom number is 9 to 20, and (c) tertiary alkyl group with or without alkoxy substituent(s) whose total carbon atom number is 4-20, in the presence of a copper complex coordinated with a chiral Schiff base of the formula: ##STR1## wherein C* is an asymmetric carbon atom, R.sup.1 is selected from the group consisting of (a) alkyl groups whose carbon atom number is 1-10 and (b) aralkyl groups with or without alkoxy substituent(s), whose total carbon atom number is 7-20, R.sup.2 is selected from aryl groups with alkoxy substituent(s), whose total carbon atom number is 7-30, and each of X.sup.1 and X.sup.2 is selected from the group consisting of (a) hydrogen atom, (b) alkyl groups having 1-10 carbon atoms, (c) phenyl group, (d) alkoxy groups having 1-10 carbon atoms, (e) halogen atoms and (f) nitro group, or (g) X.sup.1 and X.sup.2 together form a benzo group.
摘要翻译： 一种制备光学活性菊酸酯的方法，其包括使2,5-二甲基-2,4-己二烯与下式的重氮乙酸酯反应：其中R选自（a）具有或不具有取代基的环烷基 （b）碳原子数为9〜20的叔芳烷基，（c）总碳原子数为4的烷氧基烷基或不具有烷氧基取代基的叔烷基， -20，在与下式的手性希夫碱配位的铜络合物的存在下，其中C *是不对称碳原子，R 1选自（a）碳原子数为 1-10和（b）具有或不具有烷氧基取代基的芳烷基，其总碳原子数为7-20，R2选自具有烷氧基取代基的芳基，其总碳原子数为7-30 ，并且X1和X2各自选自（a）氢原子，（b）a） 具有1-10个碳原子的烷基，（c）苯基，（d）具有1-10个碳原子的烷氧基，（e）卤素原子和（f）硝基，或（g）X1和X2一起形成苯并 组。
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公开(公告)号：US4029690A
公开(公告)日：1977-06-14
申请号：US549034
申请日：1975-02-11
IPC分类号： C07C69/74 , C07C20060101 , C07C61/04 , C07C67/00 , C07C67/30 , C07C69/747
摘要： Process for producing an optically active alkyl chrysanthemate by reacting 2,5-dimethyl-2,4-hexadiene with an alkyl diazoacetate in the presence of a copper complex coordinated with a particular Schiff base.
摘要翻译： 在与特定席夫碱配位的铜络合物存在下，通过使2,5-二甲基-2,4-己二烯与重氮基烷基烷基反应制备光学活性烷基菊酸酯的方法。
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公开(公告)号：US4029683A
公开(公告)日：1977-06-14
申请号：US645541
申请日：1975-12-29
IPC分类号： C07F1/08
摘要： A copper complex coordinated with a Schiff base is provided herein, which complex is especially advantageous to catalyze the asymmetric synthesis of alkyl chrysanthemates. The specific complex of the present invention is a copper complex coordinated with a chiral Schiff base of the formula: ##STR1## wherein C* is an asymmetric carbon atom, R.sup.1 is selected from (a) alkyl groups whose carbon atom number is 1-10, and (b) aralkyl groups with or without alkoxy substituent(s), whose total carbon atom number is 7-20, R.sup.2 is selected from aryl groups with alkoxy substituent(s), whose total carbon atom number is 7-30, X is selected from (a) hydrogen, (b) alkyl groups having 1-10 carbon atoms, (c) a phenyl group, (d) alkoxy groups having 1-10 carbon atoms, (e) halogen atoms, (f) nitro, or X is benzo which together with the ring to which it is attached forms a naphthalene ring, and Y is a hydrogen atom.
摘要翻译： 本文提供了与席夫碱配位的铜络合物，该络合物特别有利于催化烷基菊酸酯的不对称合成。 本发明的具体络合物是与下式的手性席夫碱配位的铜络合物：其中C *是不对称碳原子，R1选自（a）碳原子数为1-10的烷基 ，和（b）具有或不具有烷氧基取代基的芳烷基，其总碳原子数为7-20，R2选自具有烷氧基取代基的芳基，其总碳原子数为7-30，X 选自（a）氢，（b）具有1-10个碳原子的烷基，（c）苯基，（d）具有1-10个碳原子的烷氧基，（e）卤素原子，（f）硝基， 或X为苯并
与与其连接的环一起形成萘环，Y为氢原子。-
公开(公告)号：US4205218A
公开(公告)日：1980-05-27
申请号：US890506
申请日：1978-03-27
IPC分类号： B23K35/365 , B23K35/40
CPC分类号： B23K35/404 , B23K35/365
摘要： A covered electrode for arc welding is disclosed which exhibits tight adhesion between the cover material and the core wire and provides good arc stability. This covered electrode comprises a core wire coated with a coating composition comprising (a) a powdered mixture of an inorganic oxide, carbonate and fluoride, (b) an alkali silicate and (c) 0.001 to 5.0% by weight of pullulan based on the alkali silicate.
摘要翻译： 公开了一种用于电弧焊的覆盖电极，其在覆盖材料和芯线之间表现出紧密的粘合性并提供良好的电弧稳定性。 该覆盖电极包括涂覆有涂料组合物的芯线，其包含（a）无机氧化物，碳酸盐和氟化物的粉末混合物，（b）碱金属硅酸盐和（c）基于碱的0.001至5.0重量％的支链淀粉 硅酸盐。
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公开(公告)号：US4320040A
公开(公告)日：1982-03-16
申请号：US160451
申请日：1980-06-18
CPC分类号： C08F8/44 , A61L15/60 , C08F20/06 , C08F261/04 , C08F8/32 , Y10S524/916
摘要： A method for producing a hydrophilic gel comprising polymerizing acrylic acid and/or methacrylic acid in the presence of polyvinyl alcohol to obtain a polymer (A) which is then subjected to neutralization followed by heat treatment or to heat treatment followed by neutralization, or polymerizing a neutralized product of acrylic acid and/or methacrylic acid in the presence of polyvinyl alcohol to obtain a polymer (B) which is then subjected to heat treatment, wherein said polymerization is carried out in an aqueous solution having a total concentration of acrylic acid and/or methacrylic acid or its neutralized product (the weight of the neutralized product is converted to the acid basis) and polyvinyl alcohol of 10 to 60% by weight, said heat treatment temperature is 50.degree. to 150.degree. C., and the weight ratio of polyvinylalcohol is acrylic acid and/or methacrylic acid or its salt (the weight of the neutralized product is converted to the acid basis) is 5 to 95: 95 to 5.
摘要翻译： 一种亲水性凝胶的制造方法，其特征在于，在聚乙烯醇存在下使丙烯酸和/或甲基丙烯酸聚合，得到聚合物（A），然后进行中和，进行热处理或热处理后中和，或聚合 在聚乙烯醇存在下中和丙烯酸和/或甲基丙烯酸的产物，得到聚合物（B），然后进行热处理，其中所述聚合在丙烯酸和/ 或甲基丙烯酸或其中和产物（中和产物的重量以酸为基准）和聚乙烯醇为10至60重量％，所述热处理温度为50-150℃，重量比为 聚乙烯醇是丙烯酸和/或甲基丙烯酸或其盐（中和产物的重量以酸为基准）为5〜95:95〜5。
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公开(公告)号：US4174440A
公开(公告)日：1979-11-13
申请号：US890505
申请日：1978-03-27
CPC分类号： C08B37/0018 , B01J39/22
摘要： A process for producing ionic pullulan gels which comprises gelation of pullulan by crosslinking and introduction of ionic groups into the resulting pullulan gel, the former comprising reacting pullulan with a bi-functional compound in a solvent in the presence of an alkaline substance, and the latter comprising reacting the resulting pullulan gel with a compound having a carboxyl, sulfonic, phosphoric or amino group in a solvent in the presence of an alkaline substance.
摘要翻译： 一种生产离子支链淀粉凝胶的方法，其包括通过将离子基团交联并引入所得支链淀粉凝胶中而使支链淀粉凝胶化，前者包括在碱性物质存在下在溶剂中将支链淀粉与双官能化合物反应，后者 包括使所得支链淀粉凝胶与在溶剂中在碱性物质存在下具有羧基，磺酸基，磷酸基或氨基的化合物反应。
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公开(公告)号：US4154744A
公开(公告)日：1979-05-15
申请号：US840128
申请日：1977-10-07
申请人： Kazuhiko Hamada , Gohu Suzukamo , Tsuneyuki Nagase
发明人： Kazuhiko Hamada , Gohu Suzukamo , Tsuneyuki Nagase
IPC分类号： C07D307/46 , C07D307/50
CPC分类号： C07D307/50 , C07D307/46
摘要： A process for producing furan derivatives of the formula, ##STR1## wherein R is hydrogen, methyl or chloromethyl, which comprises reacting a mono- or a disaccharide with hydrochloric acid in a mixture containing water, an organic solvent and a catalytic amount of a surface active agent.
摘要翻译： 一种制备下式的呋喃衍生物的方法，其中R是氢，甲基或氯甲基，其包括使单糖或二糖与盐酸在含有水，有机溶剂和催化量的表面的混合物中反应 活性剂。
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公开(公告)号：US4090016A
公开(公告)日：1978-05-16
申请号：US689064
申请日：1976-05-24
申请人： Kozo Tsuji , Masanori Fujimoto , Fujio Masuko , Tsuneyuki Nagase
发明人： Kozo Tsuji , Masanori Fujimoto , Fujio Masuko , Tsuneyuki Nagase
CPC分类号： C08B37/0018
摘要： Carboxylated pullulan obtained by oxidizing pullulan with an oxidizing agent is readily soluble in cold water and has favorable film-forming property, yielding a film having high mechanical strengths, high modulus of elasticity and good transparency.
摘要翻译： 通过用氧化剂氧化支链淀粉获得的羧基化支链淀粉很容易溶于冷水，具有良好的成膜性，产生机械强度高，弹性模量高，透明性好的膜。
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公开(公告)号：US5006586A
公开(公告)日：1991-04-09
申请号：US337750
申请日：1989-04-13
申请人： Daijiro Touji , Akihiro Nakahara , Takefumi Nakashita , Atsuko Mitsuba , Yukiyasu Nakashio , Tsuneyuki Nagase
发明人： Daijiro Touji , Akihiro Nakahara , Takefumi Nakashita , Atsuko Mitsuba , Yukiyasu Nakashio , Tsuneyuki Nagase
IPC分类号： A61F7/10 , C08K3/00 , C08K3/16 , C08K3/34 , C08K3/40 , C08K5/05 , C08K13/02 , C08L101/06 , C09K5/00 , C09K5/06 , C09K5/08
摘要： A heat reserve material having excellent physical properties. The heat reserve material comprises;(A) a hydrophilic polymer having a hydroxyl group on a principal chain,(B) oxide glass, and(C) water and/or a water-soluble alcohol,wherein an amount of component (B) is within the range of 1 to 50 parts by weight based on 100 parts by weight of component (A), and an amount of component (C) is 6 to 50 times larger than the total weight of components (A) and (B).
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公开(公告)号：US4239854A
公开(公告)日：1980-12-16
申请号：US899466
申请日：1978-04-24
摘要： Enzyme-immobilization carriers which comprise a macroporous amphoteric ion-exchange resin having a cation-exchange capacity due to carboxymethyl groups of 0.5 meq/g-dry resin or more, an anion-exchange capacity of 1 meq/g-dry resin or more, and a specific surface area of 1 m.sup.2 /g-dry resin or more, the total volume of macropores having a diameter of 100 A to 2000 A being 0.1 cc/g-dry resin or more, and a process for producing said carriers.
摘要翻译： 包含由羧甲基为0.5meq / g-干树脂或更多阳离子交换容量，1meq / g-干树脂或更多的阴离子交换容量而具有阳离子交换能力的大孔性两性离子交换树脂的酶固定载体， 比表面积为1m 2 / g-干树脂或更高，直径为100A至2000A的大孔的总体积为0.1cc / g-干树脂或更高，以及用于生产所述载体的方法。
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