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13 条记录 (耗时 0.017 秒)

    Process for preparing ethylidene bisformamide
    1.
    发明授权
    Process for preparing ethylidene bisformamide 失效
    亚乙基双甲酰胺的制备方法

    公开(公告)号：US5840978A

    公开(公告)日：1998-11-24

    申请号：US26907

    申请日：1993-03-05

    申请人： Andrew Francis Nordquist ,  Francis Peter Petrocelli ,  Robert Krantz Pinschmidt, Jr. ,  Yin Pang Tsui

    发明人： Andrew Francis Nordquist ,  Francis Peter Petrocelli ,  Robert Krantz Pinschmidt, Jr. ,  Yin Pang Tsui

    IPC分类号： B01J31/10 ,  C07B61/00 ,  C07C231/08 ,  C07C233/36 ,  C07C233/03

    CPC分类号： C07C231/08 ,  Y02P20/125

    摘要： This invention describes an integrated process for making ethylidene bisformamide in high yield wherein water, which is formed as a reaction by-product, is readily removed from the reaction product mixture without adversely affecting the efficiency of the overall process. The process contemplates isolating the reaction zone from the separation zone and comprises circulating a stream of formamide through a reaction zone containing a solid acidic catalyst and a separation zone; introducing acetaldehyde into the circulating stream of formamide to form a reaction mixture and contacting the reaction mixture with the solid acidic catalyst under reaction conditions sufficient to form a product mixture comprising ethylidene bisformamide and water; and separating water from the product mixture in the separation zone to form a water-depleted product mixture containing ethylidene bisformamide.

    摘要翻译： 本发明描述了以高产率制备亚乙基双甲酰胺的综合方法，其中作为反应副产物形成的水容易从反应产物混合物中除去而不会不利地影响整个方法的效率。 该方法考虑从分离区分离反应区，并且包括使甲酰胺流循环通过含有固体酸性催化剂和分离区的反应区; 将乙醛引入到甲酰胺的循环流中以形成反应混合物，并在足以形成包含亚乙基双甲酰胺和水的产物混合物的反应条件下使该反应混合物与固体酸性催化剂接触; 并从分离区中的产物混合物中分离出水以形成含有亚乙基双甲酰胺的含水产物混合物。

    Piperidone functionalized poly(vinyl alcohol)
    3.
    发明授权
    Piperidone functionalized poly(vinyl alcohol) 失效
    哌啶酮官能化聚（乙烯醇）

    公开(公告)号：US6096826A

    公开(公告)日：2000-08-01

    申请号：US119563

    申请日：1998-07-21

    申请人： John Joseph Rabasco ,  Eric Howard Klingenberg ,  Gregory Paul Dado ,  Robert Krantz Pinschmidt, Jr. ,  John Richard Boylan

    发明人： John Joseph Rabasco ,  Eric Howard Klingenberg ,  Gregory Paul Dado ,  Robert Krantz Pinschmidt, Jr. ,  John Richard Boylan

    IPC分类号： C08F8/30 ,  C08F8/00

    CPC分类号： C08F8/30

    摘要： A family of piperidone functionalized polymers based on polymers containing a plurality of hydroxyl groups. Piperidone or piperidone derivatives form a cyclic ketal linkage with hydroxyl groups contained on adjacent or alternating carbon atoms of the base polymer. Preferred compositions are piperidone functionalized poly(vinyl alcohol) having the following general formulae: ##STR1## wherein R.sub.1 through R.sub.6 are each independently hydrogen, methyl, or a C.sub.2 to C.sub.4 saturated or unsaturated alkyl groups, R.sub.7 is O.cndot. or OR.sub.8, wherein R.sub.8 is hydrogen or a C.sub.1 to C.sub.4 alkyl or C(.dbd.O)alkyl group; X.sup.- is a salt; x ranges from 50 to 99 mol %; y ranges from 0 to 30 mol %; and z ranges from 1 to 20 mol %. The compounds are useful in ink jet paper coating applications.

    摘要翻译： 一种基于含有多个羟基的聚合物的哌啶酮官能化聚合物族。 哌啶酮或哌啶酮衍生物与基础聚合物的相邻或交替碳原子上含有的羟基形成环状缩酮键。 优选的组合物是具有以下通式的哌啶酮官能化聚（乙烯醇）：其中R 1至R 6各自独立地为氢，甲基或C 2至C 4饱和或不饱和烷基，R 7为O.或OR 8，其中R 8为氢或 C 1 -C 4烷基或C（= O）烷基; X-是一种盐; x为50〜99摩尔％。 y范围为0〜30mol％; z范围为1〜20摩尔％。 这些化合物可用于喷墨纸涂布应用。

    Sulfonate-terminated oligomers of vinyl esters and their vinyl alcohol oligomer derivatives
    5.
    发明授权
    Sulfonate-terminated oligomers of vinyl esters and their vinyl alcohol oligomer derivatives 有权
    乙烯基酯的磺酸酯封端的低聚物及其乙烯醇低聚物衍生物

    公开(公告)号：US06391992B1

    公开(公告)日：2002-05-21

    申请号：US09157231

    申请日：1998-09-18

    申请人： Robert Krantz Pinschmidt, Jr. ,  Khalil Yacoub

    发明人： Robert Krantz Pinschmidt, Jr. ,  Khalil Yacoub

    IPC分类号： C08F13004

    CPC分类号： C08F18/04 ,  C08F8/12 ,  C08F8/44 ,  C08F118/08 ,  C08F218/08 ,  C08F220/06 ,  C08F222/06

    摘要： Oligomers of vinyl esters, preferably of vinyl acetate, are provided in which the molecules contain a single terminal sulfonate group, thereby making these products useful as surface-active agents. These oligomers can be converted by hydrolysis to sulfonate-terminated vinyl alcohol oligomer which is also a surface-active agent. The number average molecular weight of the vinyl ester oligomer is not over 17,000 and not over 7,500 for the vinyl alcohol oligomer. These products are made by polymerizing the vinyl ester in the presence of a bisulfite chain transfer agent in water, preferably with a cosolvent such as methanol. The vinyl ester is delay fed to the polymerization, molecular weight is controlled with the bisulfite, and the system is maintained in a virtual single phase with any organic phase present swollen with water or water and cosolvent.

    摘要翻译： 提供乙烯基酯，优选乙酸乙烯酯的低聚物，其中分子含有单末端磺酸酯基，从而使这些产物用作表面活性剂。 这些低聚物可以通过水解转化为也是表面活性剂的磺酸酯封端的乙烯醇低聚物。 乙烯基酯低聚物的数均分子量不超过17,000，而乙烯醇低聚物的数均分子量不超过7,500。 这些产物是通过在亚硫酸氢盐链转移剂存在下在水中，优选与助溶剂如甲醇聚合乙烯基酯来制备的。 乙烯基酯延迟供入聚合，分子量由亚硫酸氢盐控制，并且系统保持在虚拟的单相中，任何有机相存在与水或共溶剂溶胀。