Hyperbranched polymers and their applications
    4.
    发明授权
    Hyperbranched polymers and their applications 失效
    超支化聚合物及其应用

    公开(公告)号:US08476386B2

    公开(公告)日:2013-07-02

    申请号:US13415801

    申请日:2012-03-08

    摘要: The present invention provides a branched, a dendritic, or a hyperbranched poly(amino ester) having a polymer backbone comprising a plurality of branches, wherein the polymer backbone has at least one secondary and at least one tertiary amine linkage. Branched poly(amino ester)s are prepared via a Michael addition reaction of a tris(acrylate ester)monomer with a diamine monomer. In one aspect, the diamine monomer has a primary amino group and a secondary amino group. The poly(amino ester) compounds can be end-capped by reacting with a suitable agent. The present invention also provides applications including, but are not limited to, the delivery of bioactive agents, such as drugs, DNA or RNA; or biocompatible imaging.

    摘要翻译: 本发明提供了具有包含多个分支的聚合物主链的支链,树枝状或超支化聚(氨基酯),其中所述聚合物主链具有至少一个仲和至少一个叔胺键。 通过三(丙烯酸酯)单体与二胺单体的迈克尔加成反应制备分支的聚(氨基酯)。 一方面,二胺单体具有伯氨基和仲氨基。 聚(氨基酯)化合物可以通过与合适的试剂反应而封端。 本发明还提供包括但不限于生物活性剂如药物,DNA或RNA的递送的应用; 或生物相容性成像。

    Vinyl alcohol copolymers for use in aqueous dispersions and melt extruded articles
    5.
    发明授权
    Vinyl alcohol copolymers for use in aqueous dispersions and melt extruded articles 有权
    用于水性分散体和熔融挤出制品的乙烯醇共聚物

    公开(公告)号:US08466243B2

    公开(公告)日:2013-06-18

    申请号:US13136102

    申请日:2011-07-22

    申请人: Richard Vicari

    发明人: Richard Vicari

    摘要: A sulfonic acid-functionalized vinyl alcohol copolymer is provided which is characterized by a substantial absence of compositional drift. The copolymer is produced by polymerization in two continuously-fed reaction zones such that the ratio of sulfonic acid-containing comonomer fed to the first reaction zone to the sulfonic acid-containing comonomer fed to the second reaction zone is within the range of about 55:45 to about 80:20. The resin is characterized by a resistance to irreversible dehydration upon exposure to harsh chemicals and by retention of hydroxide functionality upon aging. A resin composition comprising a copolymer lacking compositional drift is also provided for preparation of an oil and grease barrier coating, an oxidation resistant water soluble package, or a battery separator.

    摘要翻译: 提供了磺酸官能化的乙烯醇共聚物,其特征在于基本上没有组成漂移。 通过在两个连续进料的反应区中聚合制备共聚物,使得进料到第一反应区的含磺酸的共聚单体与进料到第二反应区的含磺酸的共聚单体的比率在约55: 45到80:20。 该树脂的特征在于暴露于苛刻的化学物质时的不可逆脱水性和老化时的氢氧化物官能团的保留。 还提供了包含缺乏组成漂移的共聚物的树脂组合物,用于制备油和油脂阻隔涂层,抗氧化水溶性包装或电池隔板。

    Polyvinylamide polymers containing polymerizable functionalities
    6.
    发明授权
    Polyvinylamide polymers containing polymerizable functionalities 有权
    含聚合性官能团的聚乙烯酰胺聚合物

    公开(公告)号:US08242224B2

    公开(公告)日:2012-08-14

    申请号:US12698583

    申请日:2010-02-02

    IPC分类号: C08F12/28 C08F12/22

    摘要: The present invention relates to a polymerizable polymer formed from an N-vinyl amide monomer and containing a polymerizable functionality. In one approach, a dual functional monomer may be employed. In the case where the dual functional monomer incorporates glycidyl methacrylate, a third polymerizable monomer is also included. In a second approach, a monomer with polymerizable functionality can be grafted onto a pre-existing, suitable N-vinyl amide co-polymeric material, yielding a co-polymer comprising a polymerizable functionality. where x+y+z+a=100.

    摘要翻译: 本发明涉及由N-乙烯基酰胺单体形成并含有可聚合官能团的可聚合聚合物。 在一种方法中,可以使用双官能单体。 在双官能单体引入甲基丙烯酸缩水甘油酯的情况下,也包括第三可聚合单体。 在第二种方法中,具有可聚合官能团的单体可以接枝到预先存在的合适的N-乙烯基酰胺共聚物材料上,产生包含可聚合官能团的共聚物。 其中x + y + z + a = 100。

    Method of reducing a content of a residual styrene monomer in a polyol
    10.
    发明授权
    Method of reducing a content of a residual styrene monomer in a polyol 失效
    降低多元醇中残留苯乙烯单体含量的方法

    公开(公告)号:US07605216B2

    公开(公告)日:2009-10-20

    申请号:US10985104

    申请日:2004-11-10

    摘要: A method of reducing a content of a residual styrene monomer in a polyol utilizes a polyol, a peroxide, an adjustment of temperature, and an application of a vacuum to separate the residual styrene monomer from the polyol. The residual styrene monomer is classified as a volatile organic compound. The peroxide includes monoperoxycarbonates and peroxyketals. Peroxide radicals, present in the peroxide, react with and polymerize the residual styrene monomer to form a polymer having decreased volatility. Applying the vacuum physically separates the residual styrene monomer from the polyol by increasing a vapor pressure of the residual styrene monomer. Separating the residual styrene monomer from the polyol forms an improved polyol which includes less than 20 parts per million of the residual styrene monomer in the polyol.

    摘要翻译: 减少多元醇中的残余苯乙烯单体的含量的方法利用多元醇,过氧化物,温度调节,以及真空的应用来分离剩余的苯乙烯单体与多元醇。 将残留的苯乙烯单体分类为挥发性有机化合物。 过氧化物包括单过氧碳酸酯和过氧缩酮。 存在于过氧化物中的过氧化物基团与残留的苯乙烯单体反应并聚合以形成具有降低的挥发性的聚合物。 通过提高残留苯乙烯单体的蒸汽压力,将真空物理分离残留的苯乙烯单体与多元醇。 将残余苯乙烯单体与多元醇分离形成改进的多元醇,其包括少于每百万份多元醇中的残余苯乙烯单体的百分之二十。