利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

21 条记录 (耗时 0.037 秒)

    Carbamate functional 1,3,5-triazines
    2.
    发明授权
    Carbamate functional 1,3,5-triazines 失效
    氨基甲酸酯官能1,3,5-三嗪

    公开(公告)号：US6063922A

    公开(公告)日：2000-05-16

    申请号：US816583

    申请日：1997-03-13

    申请人： Lawrence A. Flood ,  Ram B. Gupta ,  Revathi Iyengar ,  David A. Ley ,  Vankatarao K. Pai

    发明人： Lawrence A. Flood ,  Ram B. Gupta ,  Revathi Iyengar ,  David A. Ley ,  Vankatarao K. Pai

    IPC分类号： C07D251/48 ,  C07C251/18 ,  C07C251/70 ,  C07D251/18 ,  C07D251/70

    CPC分类号： C07C251/70 ,  C07C251/18 ,  C07D251/18 ,  C07D251/70

    摘要： Provided is a novel carbamate functional 1,3,5-triazine of the general formula ##STR1## wherein Z' is selected from the group consisting of hydrogen, hydrocarbyl, and a group represented by the formula NHQ',each Q' is independently selected from the group consisting of a hydrocarbyl, a hydrocarbyloxy hydrocarbyl and a group represented by the formula COOY, with the proviso that at least two of the Q' groups are COOY, andeach Y is independently selected from the group consisting of a hydrocarbyl group and a hydrocarbyloxy hydrocarbyl ether group, with the proviso that at least one Y group is a hydrocarbyloxy hydrocarbyl ether group. These carbamate functional 1,3,5-triazines find use, for example, as crosslinkers or reactive modifiers in curable compositions.

    摘要翻译： 本发明提供了一种新的氨基甲酸酯官能的1,3,5-三嗪，其通式如下：其中Z'选自氢，烃基和由式NHQ'表示的基团，每个Q'独立地选自 由烃基，烃氧基烃基和由式COOY表示的基团组成，条件是Q'基团中的至少两个为COOY，并且每个Y独立地选自烃基和烃氧基烃基 醚基团，条件是至少一个Y基团是烃氧基烃基醚基团。 这些氨基甲酸酯官能的1,3,5-三嗪可用于例如可固化组合物中的交联剂或反应性改性剂。

    Porous acrylonitrile polymer substrate for bonding ligands and separating biologically active substances
    7.
    发明授权
    Porous acrylonitrile polymer substrate for bonding ligands and separating biologically active substances 失效
    用于结合配体和分离生物活性物质的多孔丙烯腈聚合物底物

    公开(公告)号：US5306632A

    公开(公告)日：1994-04-26

    申请号：US22223

    申请日：1993-02-25

    申请人： Larry S. Anderson ,  Michael T. Cooke ,  David A. Ley

    发明人： Larry S. Anderson ,  Michael T. Cooke ,  David A. Ley

    IPC分类号： B01J20/285 ,  B01D15/08 ,  B01D71/42 ,  B01J20/281 ,  C08F8/00 ,  C08J9/22 ,  D01D5/24 ,  D01F6/18 ,  G01N30/88 ,  C12N11/08 ,  C12N11/06 ,  G01N33/546 ,  G01N33/549

    CPC分类号： C08F8/00 ,  Y10S435/915 ,  Y10S436/824

    摘要： A porous shaped substrate such as a porous bead is formed from polyacrylonitrile or a copolymer thereof containing nitrile groups. The substrate has a hydrophilic surface containing amide groups constituting about 1.8 mole percent to less than about 15 mole percent of the total nitrile groups, and containing no amide or carboxyl groups. The substrate is substantially non-swellable in water and is able to resist pressures in a columnar bed of up to about 3000 psi without collapsing. In forming the amide groups, polyacrylonitrile or copolymer thereof containing nitrile groups, an alkaline catalyst such as sodium hydroxide and a nonsolvent for the substrate such as methanol are combined to form a suspension. A peroxide is added to the suspension and the suspension is heated to hydrolyze nitrile groups to amide groups. Succinylated aminoethyl groups or activated carboxyl groups can be formed on the substrate and a bioactive ligand such as p-aminobenzamidine covalently bonded to the substrate. The bound ligand can then be used to complex a biologically active substance such as an enzyme to separate the substance from solution.

    摘要翻译： 由聚丙烯腈或其含有腈基的共聚物形成多孔形状的基材如多孔珠粒。 底物具有含有酰胺基团的亲水性表面，其构成总腈基团的约1.8摩尔％至小于约15摩尔％，并且不含酰胺基或羧基。 基材在水中基本上不溶胀，并且能够抵抗高达约3000psi的柱状床中的压力而不会塌陷。 在形成酰胺基团时，将含有腈基的聚丙烯腈或其共聚物，氢氧化钠等碱性催化剂和甲醇等底物的非溶剂合并形成悬浮液。 向悬浮液中加入过氧化物，加热悬浮液将腈基水解成酰胺基。 可以在底物上形成琥珀酰氨基乙基或活化的羧基，以及与基底共价结合的生物活性配体如对氨基苯甲脒。 然后可以将结合的配体用于复合生物活性物质如酶，以将物质与溶液分离。

    Low temperature crosslinkable emulsion
    8.
    发明授权
    Low temperature crosslinkable emulsion 失效
    低温交联乳液

    公开(公告)号：US4522973A

    公开(公告)日：1985-06-11

    申请号：US529237

    申请日：1983-09-06

    申请人： David A. Ley ,  Herbert Burkhard

    发明人： David A. Ley ,  Herbert Burkhard

    IPC分类号： C08F8/00 ,  C09D157/00

    CPC分类号： C09D157/00 ,  C08F8/32 ,  C08F2800/20 ,  C08F2810/20 ,  C08F2810/50

    摘要： A low temperature crosslinkable emulsion is provided that includes an emulsified, crosslinkable polymer containing repeating units derived from a certain activated ester-containing vinyl monomer, and further includes a crosslinking agent having a plurality of functional groups each capable at low temperature of reacting with the activated ester groups, upon coalescence of micelles of the emulsion. Also provided is a crosslinked coating obtained by curing the emulsion.

    摘要翻译： 提供了一种低温可交联乳液，其包括含有衍生自某种含活化酯的乙烯基单体的重复单元的乳化的可交联聚合物，并且还包括具有多个官能团的交联剂，每个官能团各自能够与活化的 酯基团，当乳液的胶束聚结时。 还提供了通过固化乳液获得的交联涂层。

    Surface-modified polyacrylonitrile beads
    10.
    发明授权
    Surface-modified polyacrylonitrile beads 失效
    表面改性聚丙烯腈珠粒

    公开(公告)号：US5137983A

    公开(公告)日：1992-08-11

    申请号：US551597

    申请日：1990-07-11

    申请人： Laurence W. Chang ,  Larry S. Anderson ,  David A. Ley

    发明人： Laurence W. Chang ,  Larry S. Anderson ,  David A. Ley

    IPC分类号： C08F8/20

    CPC分类号： C08F8/20

    摘要： A bead composition is disclosed herein which comprises a core of a polyacrylonitrile homopolymer or copolymer and a surface of pendant N-haloamide groups. Also disclosed is a process for the production of said composition.

    摘要翻译： 本文公开了一种珠组合物，其包含聚丙烯腈均聚物或共聚物的芯和N-卤代酰胺侧基的表面。 还公开了用于生产所述组合物的方法。