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    Radial polymers prepared by stabilized free radical polymerization
    1.
    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.

    Block copolymer surfactants prepared by stabilized free-radical polymerization
    2.
    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。

    Vinyl aromatic-(vinyl aromatic-co-acrylic) block copolymers prepared by stabilized free radical polymerization
    3.
    发明授权
    Vinyl aromatic-(vinyl aromatic-co-acrylic) block copolymers prepared by stabilized free radical polymerization 有权
    通过稳定的自由基聚合制备的乙烯基芳族 - （乙烯基芳族 - 共 - 丙烯酸）嵌段共聚物

    公开(公告)号：US06531547B1

    公开(公告)日：2003-03-11

    申请号：US09717751

    申请日：2000-11-21

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

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

    IPC分类号： C08F29300

    CPC分类号： C10M145/14 ,  C08F293/005 ,  C10M143/10 ,  C10M2205/04 ,  C10M2209/084

    摘要： A process for preparing a block copolymer. In one embodiment, the block copolymers comprise (A) a poly (vinyl aromatic) block and (B) a poly (vinyl aromatic-co-acrylic) block, said process comprising the steps, (a) polymerizing at an elevated temperature from about 5 to about 95 mole % of a charge comprising at least one vinyl aromatic 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 poly (vinyl aromatic) block (A); (b) adding at least one acrylic monomer and optionally, additional vinyl aromatic monomer, to the mixture of vinyl aromatic monomer and stabilized active polymer block of (a); and (c) further reacting the mixture of (b) using a free radical process to effect copolymerization of said monomers, thereby preparing a (vinyl aromatic-co-acrylate) block (B). The present invention also relates to 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.

    摘要翻译： 一种制备嵌段共聚物的方法。 在一个实施方案中，嵌段共聚物包含（A）聚（乙烯基芳族）嵌段和（B）聚（乙烯基芳族 - 共 - 丙烯酸）嵌段，所述方法包括以下步骤：（a）在高温从约 5至约95摩尔％的包含至少一种乙烯基芳族单体的电荷以制备稳定的活性聚合物嵌段（A），使用自由基聚合方法，其中在聚合期间使用稳定的自由基试剂，从而保持稳定的 在聚（乙烯基芳族）嵌段（A）的末端的活性聚合位点;（b）将至少一种丙烯酸单体和任选的另外的乙烯基芳族单体加入乙烯基芳族单体和稳定的活性聚合物嵌段 ）; （c）使（b）使用自由基方法的混合物进一步反应以实现所述单体的共聚，从而制备（乙烯基芳族 - 共 - 丙烯酸酯）嵌段（B）。本发明还涉及由 上述方法，用于制备润滑油组合物和润滑油组合物的添加剂浓缩物。 在其它实施方案中，本发明涉及具有多于两个嵌段的嵌段共聚物。

    Radial polymers prepared by stabilized free radical polymerization
    4.
    发明授权
    Radial polymers prepared by stabilized free radical polymerization 有权
    通过稳定的自由基聚合制备的径向聚合物

    公开(公告)号：US06369162B1

    公开(公告)日：2002-04-09

    申请号：US09582147

    申请日：2000-06-21

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

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

    IPC分类号： C08F28100

    CPC分类号： C08L53/00 ,  C08F293/00 ,  C08F293/005 ,  C10M143/10 ,  C10M145/12 ,  C10M145/14 ,  C10M145/16 ,  C10M149/06 ,  C10M149/08 ,  C10M2205/04 ,  C10M2209/082 ,  C10M2209/084 ,  C10M2209/086 ,  C10M2217/024 ,  C10M2217/026 ,  C10M2217/06

    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.

    摘要翻译： 一种制备包含至少3个聚合物臂和包含聚合的二官能或多官能单体的中心核的径向聚合物的方法，所述方法包括以下步骤：（a）在升高的温度下聚合包含至少一种自由基 - 使用自由基聚合方法制备稳定的活性聚合物嵌段（A），其中在聚合过程中使用稳定的自由基试剂，从而保留聚合物末端的稳定的活性聚合位点; 任选地（b）向稳定的活性聚合物嵌段（A）中加入至少一种另外的可自由基聚合的单体，其至少一种不同于构成第一次单体的单体; 并进一步使混合物与自由基反应进行反应，以使所述单体进行共聚反应，从而制备在聚合物末端具有稳定的活性聚合位点的A-B嵌段共聚物; 然后（c）加入至少一种包含多官能单体的偶联剂并使来自（a）或（b）的稳定的活性聚合物与偶联剂反应以形成径向聚合物。本发明还涉及聚合物，包括制备的嵌段共聚物 通过上述方法制备用于制备润滑油组合物和润滑油组合物的添加剂浓缩物。 在其它实施方案中，本发明涉及具有多于两个嵌段的嵌段共聚物。

    Dispersant-viscosity improvers for lubricating oil compositions
    5.
    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。