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43 条记录 (耗时 0.021 秒)

    Method for producing a thickener dispersion
    2.
    发明授权
    Method for producing a thickener dispersion 有权
    生产增稠剂分散体的方法

    公开(公告)号：US08232356B2

    公开(公告)日：2012-07-31

    申请号：US12681856

    申请日：2008-11-13

    申请人： Reinhold J. Leyrer ,  Kati Schmidt

    发明人： Reinhold J. Leyrer ,  Kati Schmidt

    IPC分类号： C08F2/24

    CPC分类号： C08F2/22 ,  A61K8/04 ,  A61K8/8152 ,  A61K8/86 ,  A61K2800/48 ,  C08F220/06 ,  C08F220/18 ,  C08F222/06 ,  C08F265/00 ,  C08F265/02 ,  C08F265/04 ,  C08F265/06 ,  C08F267/02 ,  C08L51/003 ,  C11D3/3765 ,  C08L2666/02

    摘要： A method is described for producing an aqueous thickener dispersion from a monomer composition made of at least one ethylenically unsaturated carboxylic acid and at least one ethylenically unsaturated hydrophobic monomer, (i) an at least partially polymerized pre-emulsion being produced from 10 to 80 wt.-% of said monomer composition, and (ii) the residual quantity of said monomer composition being added completely to the at least partially polymerized pre-emulsion and initiating a radical polymerization. The monomer composition preferably also comprises an associative monomer. The method avoids disadvantages of batch polymerization, such as inadequate batch-to-batch reproducibility and safety problems.

    摘要翻译： 描述了从由至少一种烯键式不饱和羧酸和至少一种烯属不饱和疏水单体制成的单体组合物制备水性增稠剂分散体的方法，（i）至少部分聚合的预乳液由10至80wt 所述单体组合物的％，和（ii）所述单体组合物的残留量完全添加到至少部分聚合的预乳液中并引发自由基聚合。 单体组合物优选还包含缔合单体。 该方法避免了批次聚合的缺点，例如批次间重复性不足和安全问题。

    Absorbing agents for water and aqueous liquids and process for their production and use
    3.
    发明授权
    Absorbing agents for water and aqueous liquids and process for their production and use 失效
    用于水和含水液体的吸收剂及其生产和使用过程

    公开(公告)号：US06403700B1

    公开(公告)日：2002-06-11

    申请号：US09532085

    申请日：2000-03-21

    申请人： Kurt Dahmen ,  Reinmar Peppmöller

    发明人： Kurt Dahmen ,  Reinmar Peppmöller

    IPC分类号： C08J300

    CPC分类号： A61L15/60 ,  A61F2013/530708 ,  A61F2013/530744 ,  B01J20/26 ,  C08F220/04 ,  C08F265/02 ,  C08F267/02

    摘要： The present invention relates to a powdery, cross-linked polymer absorbing water and aqueous liquids formed of polymerized, unsaturated, acid groups-containing monomers that are present as salts neutralized to the extent of at least 50 mol-% and which optionally comprise further monomers which are copolymerizable with the acid groups-containing monomers as well as water-soluble polymers, the polymer being formed of acidic, polymerized monomers partially neutralized to the extent of 5-30 mol-%, relative to the acid groups-containing monomer portion. The polymer has a high retention, high liquid absorption under pressure, high swelling pressure, and a low content of soluble components. The present invention further relates to a process for the production of said polymer and to its use as a component in sanitary articles which absorb body fluids and in wound dressings, in current-conducting and light-transmitting cables, as soil conditioners, as a component in packaging materials and in depot materials for the controlled release of active substances.

    摘要翻译： 本发明涉及一种粉末状交联聚合物，其吸收水和由聚合的，不饱和的含酸基团的单体形成的含水液体，其以中和至少为50摩尔％的程度存在，并且任选地包含另外的单体 其可与含酸基团的单体以及水溶性聚合物共聚，所述聚合物由相对于含酸性基团的单体部分部分中和到5-30mol％程度的酸性聚合单体形成。 该聚合物具有高保留性，在压力下的高液体吸收，高溶胀压力和低含量的可溶性组分。 本发明还涉及生产所述聚合物的方法及其作为卫生制品中用作吸收体液和伤口敷料的导电和透光电缆作为土壤调节剂作为组分的组分的方法 在包装材料和储存材料中控制活性物质的释放。

    Polymeric particles and their preparation
    4.
    发明授权
    Polymeric particles and their preparation 失效
    聚合物颗粒及其制备

    公开(公告)号：US5036109A

    公开(公告)日：1991-07-30

    申请号：US616842

    申请日：1990-12-17

    申请人： Gerald K. Chip ,  Alfred Rudin

    发明人： Gerald K. Chip ,  Alfred Rudin

    IPC分类号： C08F265/06 ,  C08F265/00 ,  C08F265/02 ,  C08F265/04 ,  C08F267/02 ,  C08F285/00

    CPC分类号： C08F267/02 ,  C08F265/02 ,  C08F265/04 ,  C08F285/00 ,  Y10S525/902

    摘要： Polymer particles or beads for use as opacifiers in paints are described in which a core is provided with a hard sheath and the particle has one or more voids produced by reaction with a non-volatile permanent or fixed base. The sheath is a coploymer of an ethylenically unsaturated aliphatic monomer free of acid groups and at least 2 percent by weight of a soft ester-containing monomer and optionally styrene in an amount of up to 25 mole percent. The core is formed from an ethylenically unsaturated monomer with acid functionality.The sheath polymer has a glass transition temperature of at least 40.degree. C. The particles have a size of up to 40000 nanometers before swelling the core by some 150 to 2000 percent.

    Polymeric particles and their preparation
    5.
    发明授权
    Polymeric particles and their preparation 失效

    公开(公告)号：US4985469A

    公开(公告)日：1991-01-15

    申请号：US280969

    申请日：1988-12-07

    申请人： Gerald K. Chip ,  Alfred Rudin

    发明人： Gerald K. Chip ,  Alfred Rudin

    IPC分类号： C08F265/06 ,  C08F265/00 ,  C08F265/02 ,  C08F265/04 ,  C08F267/02 ,  C08F285/00

    CPC分类号： C08F267/02 ,  C08F265/02 ,  C08F265/04 ,  C08F285/00 ,  Y10S525/902

    摘要： Polymer particles or beads for use as opacifiers in paints are described in which a core is provided with a hard sheath and the particle has one or more voids produced by reaction with a nonvolatile permanent or fixed base. The sheath is a copolymer of an ethylenically unsaturated aliphatic monomer free of acid groups and at least 2 percent by weight of a soft ester-containing monomer and optionally styrene in an amount of up to 25 mole percent. The core is formed from an ethylenically unsaturated monomer with acid functionality.The sheath polymer has a glass transition temperature of at least 40.degree. C. The particles have a size of up to 40000 nanometers before swelling the core by some 150 to 2000 percent.

    In situ solvent free method for making anhydride based graft copolymers
    10.
    发明授权
    In situ solvent free method for making anhydride based graft copolymers 有权
    用于制备基于酸酐的接枝共聚物的原位无溶剂方法

    公开(公告)号：US06211299B1

    公开(公告)日：2001-04-03

    申请号：US09368512

    申请日：1999-08-05

    申请人： Thomas H. Moss, III ,  Klein A. Rodrigues

    发明人： Thomas H. Moss, III ,  Klein A. Rodrigues

    IPC分类号： C08F26704

    CPC分类号： C11D3/3788 ,  C08F257/02 ,  C08F267/02 ,  C08F267/04 ,  C08F291/00 ,  C08L71/02 ,  C08L2666/04 ,  C08L2666/24

    摘要： In situ solvent free methods for making anhydride based graft copolymers which involve mixing an ethylenically unsaturated monomer, an anhydride monomer, either a monofunctional polyglycol having a hydroxyl or amine terminal group or a polyfunctional polyglycol having a weight average molecular weight of greater than 5,000 and at least one terminal hydroxyl group, and a free radical initiator to form a mixture. The mixture is heated to form a copolymer having repeat units derived from the ethylenically unsaturated monomer and anhydride monomer, and a copolymer grafted polyglycol comprising a main polyglycol backbone having copolymer side chains which are heated to form an anhydride based graft copolymer. The anhydride based graft copolymers are especially useful as soil release agents in detergent formulations.

    摘要翻译： 用于制备基于酸酐的接枝共聚物的原位无溶剂方法，其包括将烯键式不饱和单体，酸酐单体，具有羟基或胺末端基团的单官能聚乙二醇或重均分子量大于5,000的多官能聚二醇混合， 至少一个末端羟基和自由基引发剂形成混合物。 将混合物加热以形成具有衍生自烯键式不饱和单体和酸酐单体的重复单元的共聚物，以及包含主要聚乙二醇主链的共聚物接枝聚乙二醇，其具有加热形成基于酸酐的接枝共聚物的共聚物侧链。 基于酸酐的接枝共聚物特别用作洗涤剂配方中的去污剂。