Noel (co) polymers and a novel polymerization process based on atom (or group) transfer radical polymerization
    42.
    发明申请
    Noel (co) polymers and a novel polymerization process based on atom (or group) transfer radical polymerization 审中-公开
    Noel(共)聚合物和基于原子(或基团)转移自由基聚合的新型聚合方法

    公开(公告)号:US20050090632A1

    公开(公告)日:2005-04-28

    申请号:US10992249

    申请日:2004-11-18

    摘要: A new polymerization process (atom transfer radical polymerization, or ATRP) based on a redox reaction between a transition metal (e.g., Cu(I)/Cu(II), provides “living” or controlled radical polymerization of styrene, (meth)acrylates, and other radically polymerizable monomers. Using various simple organic halides as model halogen atom transfer precursors (initiators) and transition metal complexes as a model halogen atom transfer promoters (catalysts), a “living” radical polymerization affords (co)polymers having the predetermined number average molecular weight by Δ[M]/[I]0 (up to Mn>105) and a surprisingly narrow molecular weight distribution (Mw/Mn), as low as 1.15. The participation of free radical intermediates in ATRP is supported by end-group analysis and stereochemistry of the polymerization. In addition, polymers with various topologies (e.g., block, random, star, end-functional and in-chain functional copolymers [for example, of styrene and methyl (meth)acrylate]) have been synthesized using the present process. The polymeric products encompassed by the present invention can be widely used as plastics, elastomers, adhesives, emulsifiers, thermoplastic elastomers, etc.

    摘要翻译: 基于过渡金属(例如Cu(I)/ Cu(II))之间的氧化还原反应的新的聚合方法(原子转移自由基聚合或ATRP)提供苯乙烯,(甲基)丙烯酸酯的“活性”或受控自由基聚合 使用各种简单的有机卤化物作为模型卤素原子转移前体(引发剂)和过渡金属络合物作为模型卤素原子转移促进剂(催化剂),“活性”自由基聚合提供具有预定的 数均分子量为Δ[M] / [I] <0>(至多为M <10> 5),令人惊奇的分子量 自由基中间体在ATRP中的参与由聚合的端基分析和立体化学支持而得到支持,其中,分子量分布(M> / M>>)低至1.15。 此外,具有各种拓扑结构的聚合物(例如嵌段,无规,星形,末端官能和链内官能团共聚物[ 或者例如苯乙烯和(甲基)丙烯酸甲酯])。 本发明包括的聚合物可广泛用作塑料,弹性体,粘合剂,乳化剂,热塑性弹性体等。

    Hot-melt adhesives based on graft copolymers
    47.
    发明申请
    Hot-melt adhesives based on graft copolymers 失效
    基于接枝共聚物的热熔胶

    公开(公告)号:US20040159394A1

    公开(公告)日:2004-08-19

    申请号:US10762175

    申请日:2004-01-21

    摘要: Water-soluble or water-dispersible hotmelt adhesives are prepared using graft copolymers produced by graft copolymerizing olefinically unsaturated monomers onto polyalkylene oxides. The adhesives additionally contain at least one resin which improves tackiness and the compatibility of the adhesive components. Other components such as polymers, plasticizers, and additives may also be present. The adhesives are especially suited for use in the labelling of recyclable or reuseable hollow containers. The adhesive may be completely separated from the hollow containers and dissolved in an alkaline washing liquor even at low temperatures.

    摘要翻译: 使用通过将烯属不饱和单体接枝共聚在聚环氧烷上制备的接枝共聚物来制备水溶性或水分散性热熔粘合剂。 粘合剂另外含有至少一种改善粘合剂组分的粘合性和相容性的树脂。 也可以存在其它组分如聚合物,增塑剂和添加剂。 粘合剂特别适合用于可回收或可重复使用的中空容器的标签。 即使在低温下,粘合剂也可以与中空容器完全分离并溶解在碱性洗涤液中。

    Epoxy modified core-shell latices
    50.
    发明授权
    Epoxy modified core-shell latices 失效
    环氧改性核壳胶乳

    公开(公告)号:US5981627A

    公开(公告)日:1999-11-09

    申请号:US959011

    申请日:1992-10-09

    摘要: This invention relates to stable one-part latex compositions prepared by aqueous emulsion polymerization wherein a core-shell polymer is formed, the core formed by emulsion polymerization of an ethylenically unsaturated monomer in the presence of an epoxy resin and the shell polymer formed by emulsion polymerization of a hydroxy carboxyl containing monomer composition in the presence of the core, providing that the monomers in both the core and the shell do not contain amino functional groups, and post-adding to the formed core-shell polymer an organic compound having at least one amino functional group which is available for later reaction with the epoxy resin upon drying to produce a crosslinked polymer product.

    摘要翻译: 本发明涉及通过水乳液聚合制备的稳定的单组分胶乳组合物,其中形成核 - 壳聚合物,在环氧树脂存在下通过烯属不饱和单体的乳液聚合形成的芯和通过乳液聚合形成的壳聚合物 在核心存在下,含有羟基羧基的单体组合物,条件是核和壳两者中的单体不含有氨基官能团,并且向所形成的核 - 壳聚合物后添加具有至少一个 氨基官能团,其可用于随后与环氧树脂反应以干燥以产生交联聚合物产物。