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103 条记录 (耗时 0.022 秒)

    Dispersing stabilizer
    1.
    发明授权
    Dispersing stabilizer 失效
    分散稳定剂

    公开(公告)号：US5849840A

    公开(公告)日：1998-12-15

    申请号：US838947

    申请日：1997-04-23

    申请人： Motokazu Maruhashi ,  Kizo Ohnishi

    发明人： Motokazu Maruhashi ,  Kizo Ohnishi

    IPC分类号： C08F8/12 ,  C08F218/08 ,  C08F290/06 ,  C08F16/06

    CPC分类号： C08F290/062 ,  C08F218/08 ,  C08J5/18

    摘要： A dispersing stabilizer including (A) a polyvinyl alcohol resin containing oxyalkylene groups and having a surface tension of 35 to 55 dyne/cm at 20.degree. C. as a 1% by weight aqueous solution, or said resin and (B) a water-soluble polymer or a polyvinyl alcohol resin having a low degree of hydrolysis and a low degree of polymerization. When using the dispersing stabilizer of the present invention, both of a porosity and a bulk density of a polyvinyl resin particle can be improved at the same time, and, in addition, a distribution of particle size and a uniformity of porosity can be further improved.

    摘要翻译： 一种分散稳定剂，其包含（A）含有氧化烯基并在20℃下作为1重量％水溶液或所述树脂的表面张力为35〜55达因/厘米的聚乙烯醇树脂，（B） 可溶性聚合物或具有低水解度和低聚合度的聚乙烯醇树脂。 当使用本发明的分散稳定剂时，可以同时改善聚乙烯基树脂颗粒的孔隙率和堆积密度，并且还可以进一步提高粒度的分布和孔隙率的均匀性 。

    Multi-layered laminate comprising hydrolyzed EVOH and use thereof
    2.
    发明授权
    Multi-layered laminate comprising hydrolyzed EVOH and use thereof 失效
    包含水解EVOH的多层层压材料及其用途

    公开(公告)号：US5849376A

    公开(公告)日：1998-12-15

    申请号：US699465

    申请日：1996-08-19

    申请人： Tsukasa Oishi ,  Masahiko Toyozumi

    发明人： Tsukasa Oishi ,  Masahiko Toyozumi

    IPC分类号： B32B27/32 ,  B32B5/14 ,  B32B9/04 ,  B32B27/30

    CPC分类号： B32B27/32 ,  Y10T428/1328 ,  Y10T428/31913 ,  Y10T428/31935

    摘要： A laminate having an excellent gas barrier property and an improved organic solvent resistance and suitable for use in containers for chemicals and volatile materials such as organic solvents and fuels. The laminate comprises: (A) a layer comprising (A1) a hydrolyzed ethylene-vinyl acetate copolymer having an ethylene content of 10 to 70% by mole and a degree of hydrolysis of at least 85% by mole, (B) a layer of a resin composition comprising (B1) a polyolefin resin and (B2) 0.5 to 40% by weight, based on said polyolefin (B1), of a hydrolyzed ethylene-vinyl acetate copolymer having an ethylene content of 10 to 70% by mole and a degree of hydrolysis of at least 85% by mole, (C) an outer layer of a polyolefin resin disposed on the outer side of said layer (A), and optionally an outer layer of said polyolefin resin (C) disposed on the other side and at least one adhesive layer disposed between adjacent two layers, wherein the ratio of the apparent melt viscosity of said polyolefin (B1) to that of said hydrolyzed copolymer (B2) at a rate of shear of 100 cm.sup.-1 and at 230.degree. C. is from 0.1 to 50.

    摘要翻译： 具有优异的阻气性和改善的耐有机溶剂性并且适用于化学品和挥发性物质如有机溶剂和燃料的容器中的层压体。 层压体包括：（A）包含（A1）乙烯含量为10〜70摩尔％，水解度为85摩尔％以上的水解乙烯 - 乙酸乙烯酯共聚物的层（A），（B） 一种树脂组合物，其包含（B1）聚烯烃树脂和（B2）基于所述聚烯烃（B1）0.5至40重量％的乙烯含量为10至70摩尔％的水解乙烯 - 乙酸乙烯酯共聚物和 水解度至少为85摩尔％，（C）设置在所述层（A）的外侧的聚烯烃树脂的外层，以及任选设置在另一侧的所述聚烯烃树脂（C）的外层 以及设置在相邻两层之间的至少一个粘合剂层，其中所述聚烯烃（B1）与所述水解共聚物（B2）的表观熔体粘度在100cm -1的剪切速率和230℃下的比例 为0.1〜50。

    Process for production of 2-substituted-4-hydromethylimidazole compounds
    4.
    发明授权
    Process for production of 2-substituted-4-hydromethylimidazole compounds 失效
    2-取代-4-羟基乙基咪唑化合物的制备方法

    公开(公告)号：US5266704A

    公开(公告)日：1993-11-30

    申请号：US940380

    申请日：1992-09-03

    申请人： Takehiko Kakimoto ,  Toshima Ogawa

    发明人： Takehiko Kakimoto ,  Toshima Ogawa

    IPC分类号： C07D233/64 ,  C07D233/54 ,  C07D233/60

    CPC分类号： C07D233/64

    摘要： The invention provides a process for producing a 2-substituted-4-hydroxymethylimidazole easily and in good yield by means of simple equipment. This process comprises reacting hydroxymethylglyoxal, a monoaldehyde and ammonia in a sequence such that said monoaldehyde and ammonia are first reacted with each other and hydroxymethylglyoxal is then introduced into the reaction system for further reaction.

    摘要翻译： 本发明提供了通过简单的设备容易且以良好的产率制备2-取代-4-羟甲基咪唑的方法。 该方法包括使羟甲基乙二醛，单醛和氨按照使得所述单醛和氨首先反应的顺序反应，然后将羟甲基乙二醛引入反应体系进一步反应。

    Process for preparing acetic acid esters
    7.
    发明授权
    Process for preparing acetic acid esters 失效
    制备乙酸酯的方法

    公开(公告)号：US4405808A

    公开(公告)日：1983-09-20

    申请号：US370037

    申请日：1982-04-20

    申请人： Kazuhisa Nakajima ,  Masahiko Miyashita ,  Susumu Hakozaki ,  Yoshinori Chosakon

    发明人： Kazuhisa Nakajima ,  Masahiko Miyashita ,  Susumu Hakozaki ,  Yoshinori Chosakon

    IPC分类号： C07C67/04

    CPC分类号： C07C67/04

    摘要： A process for preparing acetic acid ester by reacting acetic acid with an aliphatic lower olefin in vapor phase in the presence of steam and a catalyst selected from aromatic disulfonic acids and their esters. The high activity of the catalyst can be maintained and the product is obtained in a high space time yield by the presence of steam in the reaction. The effect of maintaining the high activity can be further increased by using silica treated with a strong acid as a carrier.

    摘要翻译： 一种在蒸气和选自芳族二磺酸及其酯的催化剂存在下，使乙酸与脂族低级烯烃在气相中反应制备乙酸酯的方法。 可以保持催化剂的高活性，并且通过在反应中存在蒸汽以高的空间时间产率获得产物。 通过使用用强酸作为载体处理的二氧化硅，可以进一步提高维持高活性的效果。

    Process for preparing 4-hydroxyphenylacetic acid
    8.
    发明授权
    Process for preparing 4-hydroxyphenylacetic acid 失效
    制备4-羟基苯基乙酸的方法

    公开(公告)号：US4337355A

    公开(公告)日：1982-06-29

    申请号：US161592

    申请日：1980-06-20

    申请人： Kazuhisa Nakajima ,  Kazuaki Gohgi ,  Toshio Yamamoto

    发明人： Kazuhisa Nakajima ,  Kazuaki Gohgi ,  Toshio Yamamoto

    IPC分类号： C07C51/377 ,  C07C65/01

    CPC分类号： C07C51/377

    摘要： A process for preparing 4-hydroxyphenylacetic acid by reducing 4-hydroxymandelic acid in a reaction medium of a lower aliphatic carboxylic acid or a water-containing lower aliphatic carboxylic acid. When the crystalline 4-hydroxymandelic acid is employed as the staring material, 4-hydroxyphenylacetic acid of high quality is obtained in high yields.

    摘要翻译： 通过在低级脂族羧酸或含水低级脂肪族羧酸的反应介质中还原4-羟基扁桃酸制备4-羟基苯基乙酸的方法。 当结晶的4-羟基扁桃酸用作起始材料时，以高产率获得高质量的4-羟基苯基乙酸。

    Antibacterial and antifungal composition
    9.
    发明授权
    Antibacterial and antifungal composition 失效
    抗菌和抗真菌组合物

    公开(公告)号：US4242356A

    公开(公告)日：1980-12-30

    申请号：US58448

    申请日：1979-07-18

    申请人： Masayasu Hasegawa ,  Hideo Nishikawa ,  Yasuo Kotani

    发明人： Masayasu Hasegawa ,  Hideo Nishikawa ,  Yasuo Kotani

    IPC分类号： A01N37/06 ,  A01N37/34 ,  A01N43/16 ,  A01N43/42 ,  A01N43/78 ,  A01N47/04 ,  A01N47/38 ,  A01N31/08 ,  A01N43/02 ,  A01N43/36

    CPC分类号： A01N43/78 ,  A01N37/06 ,  A01N37/34 ,  A01N43/16 ,  A01N43/42 ,  A01N47/04 ,  A01N47/38

    摘要： An antibacterial and antifungal composition comprising (A) at least one member selected from the group consisting of dehydroacetic acid, sorbic acid and their alkali metal salts and (B) at least one member selected from the group consisting of o-phenylphenol and its alkali metal salts, p-chloro-m-xylenol, 2-(4-thiazolyl)-1H-benzimidazole, 8-hydroxyquinoline and its salts and chelates, methyl 1-(butylcarbamoyl)-2-benzimidazolecarbamate, tetrachloroisophthalonitrile and N-(fluorodichloromethylthio)phthalimide. The antibacterial and antifungal effects can be synergistically increased when the component (A) is employed in combination with the component (B).

    摘要翻译： 一种抗菌和抗真菌组合物，其包含（A）选自脱氢乙酸，山梨酸及其碱金属盐中的至少一种，和（B）选自邻苯基苯酚及其碱金属中的至少一种 盐，对氯 - 间二甲苯酚，2-（4-噻唑基）-1H-苯并咪唑，8-羟基喹啉及其盐和螯合物，1-（丁基氨基甲酰基）-2-苯并咪唑基亚氨基甲酸甲酯，四氯间苯二甲腈和N-（氟代二氯甲硫基） 。 当组分（A）与组分（B）组合使用时，抗菌和抗真菌作用可以协同增加。

    Process for preparing sorbic acid
    10.
    发明授权
    Process for preparing sorbic acid 失效
    制备山梨酸的方法

    公开(公告)号：US4158741A

    公开(公告)日：1979-06-19

    申请号：US737014

    申请日：1976-10-29

    申请人： Mitsuhiro Goi ,  Masahiko Miyashita ,  Tokio Hashimoto

    发明人： Mitsuhiro Goi ,  Masahiko Miyashita ,  Tokio Hashimoto

    IPC分类号： C07C51/09 ,  C07C51/00 ,  C07C57/10

    CPC分类号： C07C51/09

    摘要： Process for preparing sorbic acid which comprises contacting .gamma.-vinyl-.gamma.-butyrolactone with at least one catalyst selected from the group consisting of (A) solid acids, (B) transition metal oxides, (C) metals of Group VIII of the Periodic Table and (D) halides of metals of Groups I-B, II-B, III-B, IV-B, V-B, VI-B and VIII of the Periodic Table.

    摘要翻译： 制备山梨酸的方法，其包括使γ-乙烯基-γ-丁内酯与至少一种选自（A）固体酸，（B）过渡金属氧化物，（C）元素周期表第Ⅷ族金属的催化剂接触 和（D）元素周期表IB，II-B，III-B，IV-B，VB，VI-B和VIII族金属的卤化物。