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    Radial polymers prepared by stabilized free radical polymerization
    2.
    发明授权
    Radial polymers prepared by stabilized free radical polymerization 有权

    公开(公告)号：US07034079B2

    公开(公告)日：2006-04-25

    申请号：US10101672

    申请日：2002-03-19

    申请人： Daniel C. Visger ,  Richard M. Lange

    发明人： Daniel C. Visger ,  Richard M. Lange

    IPC分类号： C08F281/00

    CPC分类号： C10M145/12 ,  C08F293/005 ,  C08L53/00 ,  C10M149/06 ,  C10M149/08

    摘要： A process for preparing a radial polymer comprising at least 3 polymeric arms and a central core comprising a polymerized di- or polyfunctional monomer, said process comprising the steps, (a) polymerizing at an elevated temperature, a charge comprising at least one free radical-polymerizable monomer to prepare a stabilized active polymer block (A) using a free radical polymerization process, wherein a stable free radical agent is employed during the polymerization, thereby preserving the stabilized active polymerization site at the terminus of the polymer; optionally (b) adding at least one additional free radical-polymerizable monomer, at least one of which is different from the monomers making up the first charge of monomers, to the stabilized active polymer block (A); and further reacting the mixture using a free radical process to effect copolymerization of said monomers, thereby preparing an A-B block copolymer having a stabilized active polymerization site at the terminus of the polymer; then (c) adding at least one coupling agent comprising a polyfunctional monomer and reacting the stabilized active polymers from (a) or (b) with a coupling agent to form a radial polymer. The present invention also relates to polymers, including block copolymers prepared by the above process, additive concentrates for preparing lubricating oil compositions and lubricating oil compositions. In other embodiments, the present invention relates to block copolymers having more than two blocks.

    Dispersant-viscosity improvers for lubricating oil compositions
    3.
    发明授权
    Dispersant-viscosity improvers for lubricating oil compositions 失效
    用于润滑油组合物的分散剂 - 粘度改进剂

    公开(公告)号：US06818601B1

    公开(公告)日：2004-11-16

    申请号：US09599709

    申请日：2000-06-22

    申请人： Richard M. Lange

    发明人： Richard M. Lange

    IPC分类号： C10M14500

    CPC分类号： C10M149/00 ,  C10M133/52 ,  C10N2230/04

    摘要： A composition of matter suitable for use as a dispersant-viscosity improver for lubricating oil compositions comprises the reaction product of reactants comprising (a) hydrocarbon polymer grafted with an &agr;,&bgr;-ethylenically unsaturated carboxylic acid or functional derivative thereof; and (b) an amine selected from the group consisting of (b-1) a product made by contacting at least one hydroxy-containing material with at least one amine having at least one N—H group, and (b-2) an acylated derivative of (b-1) containing at least one condensable N—H group.

    摘要翻译： 适合用作润滑油组合物的分散剂 - 粘度改进剂的物质组合物包括反应物的反应产物，其包含（a）接枝有α，β-烯键式不饱和羧酸或其官能衍生物的烃聚合物; 和（b）选自（b-1）通过使至少一种含羟基材料与至少一种具有至少一个NH基团的胺接触而制备的产物的胺和（b-2）酰化衍生物 （b-1）含有至少一个可冷凝NH基团。

    Block copolymer surfactants prepared by stabilized free-radical polymerization
    5.
    发明授权
    Block copolymer surfactants prepared by stabilized free-radical polymerization 失效
    通过稳定的自由基聚合制备的嵌段共聚物表面活性剂

    公开(公告)号：US6111025A

    公开(公告)日：2000-08-29

    申请号：US881893

    申请日：1997-06-24

    申请人： Daniel C. Visger ,  Klaus-Werner Damm ,  Richard M. Lange ,  Barton J. Schober

    发明人： Daniel C. Visger ,  Klaus-Werner Damm ,  Richard M. Lange ,  Barton J. Schober

    IPC分类号： C08F2/38 ,  C08F293/00 ,  C08F295/00

    CPC分类号： C08F293/005

    摘要： A block copolymer of a hydrophobic block of one or more hydrophobic monomers and a hydrophilic block of one or more hydrophilic monomers is prepared by polymerizing a hydrophobic monomer to prepare the hydrophobic block, using a free radical polymerization process using a stable free radical agent, preserving a stabilized active polymerization site on the hydrophobic block; adding a hydrophilic monomer to the stabilized active hydrophobic block; and further reacting the mixture to effect polymerization of the hydrophilic monomer. The polymerization of the hydrophilic monomer is conducted in an amidic solvent in which the hydrophobic block and the hydrophilic monomer are soluble.

    摘要翻译： 一种或多种疏水单体的疏水嵌段和一种或多种亲水单体的亲水嵌段的嵌段共聚物是通过使用使用稳定自由基的自由基聚合方法聚合疏水性单体以制备疏水性嵌段来制备的，保存 疏水嵌段上的稳定的活性聚合位点; 向稳定的活性疏水嵌段添加亲水单体; 并进一步使该混合物反应以实现亲水性单体的聚合。 亲水性单体的聚合在疏水性嵌段和亲水性单体可溶的酰胺溶剂中进行。

    Treated polymer fabrics
    10.
    发明授权
    Treated polymer fabrics 失效
    处理聚合物织物

    公开(公告)号：US5219644A

    公开(公告)日：1993-06-15

    申请号：US494642

    申请日：1990-03-15

    申请人： Kasturi Lal ,  Richard M. Lange

    发明人： Kasturi Lal ,  Richard M. Lange

    IPC分类号： A61F13/53 ,  A61F13/15 ,  A61F13/49 ,  B01F17/16 ,  B01F17/46 ,  C07C235/08 ,  D06M13/02 ,  D06M13/322 ,  D06M13/402 ,  D06M13/405 ,  D06M13/419 ,  D06M101/00 ,  D06M101/16 ,  D06M101/18

    CPC分类号： D06M13/402 ,  D06M13/405 ,  D06M13/419 ,  Y10T442/2484

    摘要： This invention relates to an article comprising:(A) at least one polymer fabric treated with (B) at least one wetting agent which comprises at least one compound of the formulae ##STR1## wherein each R.sub.1 is independently a hydrocarbyl group having from about 8 to about 150 carbon atoms; each R.sub.2 is independently hydrogen, an alkyl group or polyoxyalkylene group; each R.sub.3 is independently an alkylene group; R.sub.4 is an alkyl group or polyoxyalkylene group; n is 1 to about 150; and M is a hydrogen, an ammonium cation or a metal cation.The treated polymer fabrics of the present invention have improved wicking/wetting characteristics. Further, the fabrics maintain these characteristics upon repeated exposure to fluids.

    摘要翻译： 本发明涉及一种制品，其包括：（A）至少一种用（B）至少一种润湿剂处理的聚合物织物，所述润湿剂包含至少一种式I或II的化合物，其中每个R 1独立地为 具有约8至约150个碳原子的烃基; 每个R 2独立地是氢，烷基或聚氧化烯基; 每个R 3独立地是亚烷基; R4是烷基或聚氧化烯基; n为1至约150; M是氢，铵阳离子或金属阳离子。 本发明的经处理的聚合物织物具有改善的芯吸/润湿特性。 此外，织物在反复暴露于流体时保持这些特性。