-
公开(公告)号：US4095525A
公开(公告)日：1978-06-20
申请号：US734356
申请日：1976-10-20
CPC分类号： B41N3/08
摘要： A protective coating material for lithographic printing plate, which comprises pullulan or pullulan derivatives. Said material is superior to hitherto used gum arabic solution in the protection of the surface of lithographic printing plate against oxidation and scumming as well as in the ability to enhance the hydrophilic character of metallic surface of a non-image area.
摘要翻译： 用于平版印刷版的保护涂料，其包含支链淀粉或支链淀粉衍生物。 所述材料优于迄今使用的阿拉伯树胶溶液，以保护平版印刷版的表面免受氧化和浮渣以及增强非图像区域的金属表面的亲水特性的能力。
-
公开(公告)号：US5077336A
公开(公告)日：1991-12-31
申请号：US254660
申请日：1988-11-16
申请人： Takefumi Nakashita , Atsuko Mitsuba , Daijiro Touji , Ichiro Tominaga , Teruo Sasaki , Yukiyasu Nakashio , Tsuneyuki Nagase
发明人： Takefumi Nakashita , Atsuko Mitsuba , Daijiro Touji , Ichiro Tominaga , Teruo Sasaki , Yukiyasu Nakashio , Tsuneyuki Nagase
摘要： The present invention relates to a first low-temperature insulating material which comprises polyvinyl chloride, a plasticizer, a water-containing or absorbing gel or an aqueous solution of a water-soluble polymer and an emulsifier and a second low-temperature insulating material which comprises polyvinyl chloride gelled by mixing with a plasticizer and a surface-covered, water-containing hydrogel. The insulating materials are inexpensive and show excellent heat-insulating properties and excellent flexibility at low temperatures.
-
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。
-
公开(公告)号：US4255521A
公开(公告)日：1981-03-10
申请号：US40872
申请日：1979-05-21
CPC分类号： C12N9/92 , C12N1/066 , Y10S435/803 , Y10S435/886 , Y10S435/887
摘要： In a process for extracting glucose isomerase from microorganism cells containing glucose isomerase by the so called high pressure release and impact method in which the suspension of the microorganism cells is homogenized for the extraction by releasing the pressure applied on said suspension instantaneously and giving the suspension an impact at very high velocity, the concentration of the suspension containing microorganism cells and the pressure applied on the said suspension are selected within specific ranges, namely from 0.5 to 10 wt. % (on a dry substance base) and from 400 to 700 Kg/cm.sup.2, respectively.
摘要翻译： 在通过所谓的高压释放和冲击法从含有葡萄糖异构酶的微生物细胞中提取葡萄糖异构酶的方法中，其中微生物细胞的悬浮液通过释放立即施加在所述悬浮液上的压力并将悬浮液 以非常高的速度冲击，含有微生物细胞的悬浮液的浓度和施加在所述悬浮液上的压力在特定范围内选择，即0.5至10wt。 ％（在干物质基础上）和400至700Kg / cm 2。
-
公开(公告)号：US4186024A
公开(公告)日：1980-01-29
申请号：US692503
申请日：1976-06-03
申请人： Masanori Fujimoto , Kosuke Fukami , Kozo Tsuji , Tsuneyuki Nagase
发明人： Masanori Fujimoto , Kosuke Fukami , Kozo Tsuji , Tsuneyuki Nagase
CPC分类号： C08L5/00
摘要： A method for improving the water-resistance of pullulan, which is a linear high polymer having the following structural formula: ##STR1## and useful as films, sheets, fibers and the like.
摘要翻译： 一种提高支链淀粉的耐水性的方法，其为具有以下结构式的线性高分子聚合物：＆lt; IMAGE＆gt;＆gt; + TR＆lt; IMAGE＆gt;并且可用作薄膜，片材，纤维等。
-
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。
-
公开(公告)号：US4124748A
公开(公告)日：1978-11-07
申请号：US743332
申请日：1976-11-19
申请人： Masanori Fujimoto , Kozo Tsuji , Tsuneyuki Nagase
发明人： Masanori Fujimoto , Kozo Tsuji , Tsuneyuki Nagase
CPC分类号： C08F8/12 , C08F220/06 , C08F263/04 , C08F8/44 , C08F2800/10 , C08F2810/50
摘要： A highly absorbent polymer is obtained by saponifying a crosslinked copolymer of a vinyl ester and an ethylenically unsaturated carboxylic acid or the derivative thereof. The absorbent polymer is suitable as a material, for example, for separation and purification of substances and a seed culturing media for plants.
摘要翻译： 通过皂化乙烯基酯和烯键式不饱和羧酸的交联共聚物或其衍生物来获得高吸收性聚合物。 吸收性聚合物适合用作例如物质的分离和纯化以及用于植物的种子培养基的材料。
-
公开(公告)号：US4069385A
公开(公告)日：1978-01-17
申请号：US692510
申请日：1976-06-03
申请人： Masashi Araki , Tsuneyuki Nagase
发明人： Masashi Araki , Tsuneyuki Nagase
IPC分类号： C07C67/00 , C07C69/145 , C07C69/155 , C07C69/24 , C07C69/78 , C07C69/83
CPC分类号： C07C67/05 , C07C2101/10 , C07C2101/16
摘要： In the preparation of olefin derivatives having an ester group at the allylic position (hereinafter referred to as "allylic ester(s)") which comprises reacting an olefin having at least one hydrogen atom at the allylic position and which will produce an allylic ester having an asymmetric carbon atom with an organic peroxide in the presence of a copper catalyst, a method for producing optically active allylic esters characterized by using, as the copper catalyst, an optically active copper complex derived from an optically active compound selected from the group consisting of Schiff's bases of the formula: ##STR1## and amino acids of the formula: ##STR2## wherein R.sub.0 is an optically active alkyl, cycloalkyl, aralkyl or aryl group which may contain an unsaturated bond and/or a substituent having a hetero atom, X and Y are each a hydrogen atom, an alkyl, cycloalkyl, aralkyl or aryl group, or a substituent having a hetero atom, R.sub.1 and R.sub.2 are each a hydrogen atom, or an alkyl, cycloalkyl, aralkyl or aryl group which may contain an unsaturated bond and/or a substituent having a hetero atom, R.sub.3 is an alkyl, cycloalkyl, aralkyl or aryl group which may contain an unsaturated bond and/or a substituent having a hetero atom, or when R.sub.3 is linked together with R.sub.2, they form a divalent hydrocarbon group including or not including a hetero atom and which is optionally substituted with a substituent having a hetero atom, and the asterisk (*) indicates an asymmetric carbon atom.
摘要翻译： 在烯丙基位具有酯基的烯烃衍生物的制备（以下称为“烯丙基酯”）中，其包括在烯丙基位置使具有至少一个氢原子的烯烃反应，并产生具有 在铜催化剂存在下使用有机过氧化物的不对称碳原子，制备光学活性烯丙基酯的方法，其特征在于使用衍生自光学活性化合物的光学活性铜络合物，所述旋光活性铜络合物选自 希夫的下式：其中R 0是可以含有不饱和键和/或取代基的光学活性烷基，环烷基，芳烷基或芳基的式（I）的氨基酸和下式的氨基酸： 具有杂原子，X和Y各自为氢原子，烷基，环烷基，芳烷基或芳基或具有杂原子的取代基，R 1和R 2各自为氢原子或烷基， 可以含有不饱和键和/或具有杂原子的取代基的烷基，芳烷基或芳基，R3是可以含有不饱和键和/或具有杂原子的取代基的烷基，环烷基，芳烷基或芳基，或 当R3与R2连接在一起时，它们形成包含或不包括杂原子的二价烃基，其任选被具有杂原子的取代基取代，并且星号（*）表示不对称碳原子。
-
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。
-
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。
-
-
-
-
-
-
-
-
-
搜索结果
30 条记录 (耗时 0.024 秒)
