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21 条记录 (耗时 0.02 秒)

    Low temperature crosslinkable emulsion
    1.
    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。

    Process for making trifunctional primary amine crosslinker
    2.
    发明授权
    Process for making trifunctional primary amine crosslinker 失效
    制备三官能伯胺交联剂的方法

    公开(公告)号：US4495366A

    公开(公告)日：1985-01-22

    申请号：US529233

    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： C07C237/00 ,  C07C102/06

    CPC分类号： C07C237/00

    摘要： An improved process for synthesizing a sterically unhindered trifunctional primary amine is provided. This process includes the steps of slowly adding a particular unsaturated diester to a solution of a certain diamine in an aromatic organic solvent, and recovering the desired compound. The trifunctional primary amine is useful as a crosslinking agent.

    摘要翻译： 提供了一种用于合成空间未受阻的三官能伯胺的改进方法。 该方法包括将特定的不饱和二酯缓慢加入到芳族有机溶剂中的某些二胺的溶液中并回收所需化合物的步骤。 三官能伯胺可用作交联剂。

    Porous acrylonitrile polymer substrate for bonding ligands and separating biologically active substances
    4.
    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 cure, activated ester coating composition with improved pot life
    9.
    发明授权
    Low temperature cure, activated ester coating composition with improved pot life 失效
    低温固化，活性酯涂料组合物具有较好的适用期

    公开(公告)号：US4530960A

    公开(公告)日：1985-07-23

    申请号：US529235

    申请日：1983-09-06

    申请人： David A. Ley ,  Susan M. Cady

    发明人： David A. Ley ,  Susan M. Cady

    IPC分类号： C08F8/00

    CPC分类号： C08F8/00

    摘要： A low temperature cure, two component coating composition having an improved balance between pot life and speed of cure is provided. The coating composition includes a crosslinkable, solvent borne, solution polymer containing certain activated ester groups, and a hemiaminal. Also provided is a crosslinked coating obtained by curing the composition. Additionally, there is provided a process for increasing the pot life of a low temperature cure coating composition. The process includes the step of forming a hemiaminal from a crosslinking agent preferably prior to mixing the crosslinking agent with the polymer.

    摘要翻译： 提供了一种具有改善的适用期和固化速度平衡的低温固化双组分涂料组合物。 涂料组合物包含含有某些活化酯基团的可交联的，溶剂型的溶液聚合物和一种hemiaminal。 还提供了通过固化组合物获得的交联涂层。 另外，提供了一种提高低温固化涂料组合物的适用期的方法。 该方法包括优选在将交联剂与聚合物混合之前从交联剂形成hemiaminal的步骤。