Method for characterizing an ethylene and vinyl acetate copolymer
    61.
    发明授权
    Method for characterizing an ethylene and vinyl acetate copolymer 有权
    表征乙烯和乙酸乙烯酯共聚物的方法

    公开(公告)号:US09157877B2

    公开(公告)日:2015-10-13

    申请号:US14117416

    申请日:2012-03-02

    IPC分类号: G01N25/48 G01N25/20 G01N33/44

    摘要: A process for characterizing a copolymer of ethylene and vinyl acetate (EVA) using a differential calorimetry analysis technique. This process is determining one or more values of characteristic(s) of a sample of EVA copolymer, one of which is a level of crosslinking of the sample. The process makes it possible to determine not only the degree of crosslinking, but also the vinyl acetate content and the molecular mass of an EVA sample, in a simple, rapid, easy and precise manner.

    摘要翻译: 使用差示量热分析技术表征乙烯和乙酸乙烯酯(EVA)的共聚物的方法。 该方法确定了EVA共聚物样品的一个或多个特征值,其中之一是样品的交联水平。 该方法不但能够以简单,快速,简单和精确的方式测定EVA样品的交联度,而且还测定乙酸乙烯酯含量和分子量。

    Method for increasing polymer compatibility
    63.
    发明授权
    Method for increasing polymer compatibility 失效
    提高聚合物相容性的方法

    公开(公告)号:US08586672B2

    公开(公告)日:2013-11-19

    申请号:US13119779

    申请日:2009-09-17

    摘要: The invention relates to a method for increasing the compatibility between at least two polymers, which comprises: (a) selecting at least two immiscible polymers (A) and (B), at least one of which does not bear a nitrogenous heterocycle-based associative group, and (b) modifying the polymer (A) and/or the polymer (B) so as to obtain a blend of polymers (Pi) which are derived from the polymers (A) and (B) and which each bear nitrogenous heterocycle-based associative groups, said associative groups being present in sufficient amount for the polymers (Pi) to be more compatible with one another than the polymers (A) and (B). It also relates to the polymer composition that can be obtained according to this method.

    摘要翻译: 本发明涉及增加至少两种聚合物之间的相容性的方法,其包括:(a)选择至少两种不混溶的聚合物(A)和(B),其中至少一种不含有基于含氮杂环的缔合 基团,和(b)改性聚合物(A)和/或聚合物(B),以获得衍生自聚合物(A)和(B)的聚合物(Pi)的共混物,并且各自承载含氮杂环 所述缔合基团以足够的量存在以使聚合物(Pi)彼此比聚合物(A)和(B)更相容。 它还涉及可以根据该方法获得的聚合物组合物。

    Method for synthesizing supramolecular materials
    64.
    发明授权
    Method for synthesizing supramolecular materials 失效
    合成超分子材料的方法

    公开(公告)号:US08536281B2

    公开(公告)日:2013-09-17

    申请号:US12991181

    申请日:2009-05-05

    IPC分类号: C08L77/00 C08G59/44 C08G69/34

    摘要: The present invention relates to a method for synthesizing a supramolecular material comprising: 1—the reaction of at least one carboxylic diacid, or ester or chloride of such a diacid, with, on the one hand, at least one modifier compound bearing both reactive functional groups capable of reacting with the carboxylic acid, ester or acid chloride functional groups and associative groups capable of associating with one another by hydrogen bonds, in a molar ratio of the reactive functional groups to the carboxylic acid, ester or acid chloride functional groups of between 0.10 and 0.50, and, on the other hand, at least one polyamine, said reactions being carried out successively or simultaneously, and 2—the reaction of the polyamide obtained at the end of step 1 with urea. The present invention also relates to the resulting material, and also to the uses thereof.

    摘要翻译: 本发明涉及一种合成超分子材料的方法,其包括:1-至少一种羧酸二酸或这种二酸的酯或氯化物与至少一种具有反应性官能团 能够与羧酸,酯或酰氯官能团和能够通过氢键彼此结合的缔合基团反应的基团,反应性官能团与羧酸,酯或酰氯官能团的摩尔比在 0.10和0.50,另一方面是至少一种多胺,所述反应相继或同时进行,和2-步骤1结束时得到的聚酰胺与尿素的反应。 本发明还涉及所得到的材料,以及其用途。

    STYRENE/ANHYDRIDE POLYMERIC MATERIAL AND GRAFT HAVING ENHANCED PROPERTIES
    68.
    发明申请
    STYRENE/ANHYDRIDE POLYMERIC MATERIAL AND GRAFT HAVING ENHANCED PROPERTIES 有权
    苯乙烯/无水聚合材料和具有增强性能的树脂

    公开(公告)号:US20100120983A1

    公开(公告)日:2010-05-13

    申请号:US12526102

    申请日:2008-02-01

    IPC分类号: C08F222/06

    摘要: A polymeric material from the styrene family, consisting of macromolecular chains grafted by nitrogen-containing heterocyclic groups; wherein the macromolecular chains consist of a polymeric backbone to which a grafted agent is attached by at least one covalent bond, the grafting agent comprises, in a single molecule, one or more associative groups capable of being bound by hydrogen bonds, and one or more reactive groups capable of forming covalent bonds with the polymeric backbone, at least one of the associative groups of the modifier is an imidazolidone heterocyclic ring. The mean number of imidazolidone groups to be inserted into the macromolecular chains is dependent both on the mean mass of said chains and on the final properties to be imparted to the material. The polymeric material of the invention can be extruded, coextruded, injected, blow-moulded, moulded, overmoulded, calendered or thermoformed. Objects such as tubes, films, plates, stiffenerss, bottles and containers can be made. The polymeric material of the invention can also be blended with other materials such as other polymers, and can thus be modified by elastomeric phases that enhance the impact strength thereof. The polymeric material of the invention can be a component of masterbatches of additives such as pigments and fillers. The present invention further relates to the use of said polymeric material as a compatibilization agent in a composition including, inter alia, at least two polymers belonging to different polymeric classes.”

    摘要翻译: 来自苯乙烯家族的聚合物材料,由含氮杂环基团接枝的大分子链组成; 其中所述大分子链由接枝剂通过至少一个共价键连接的聚合物主链组成,所述接枝剂在单个分子中包含一个或多个能够被氢键结合的缔合基团,以及一个或多个 能够与聚合物主链形成共价键的反应性基团,改性剂的至少一个缔合基团是咪唑烷酮杂环。 插入大分子链中的咪唑烷酮基团的平均数目取决于所述链的平均质量和赋予材料的最终性能。 本发明的聚合物材料可以挤出,共挤出,注塑,吹塑,模制,包覆成型,压延或热成型。 可以制造诸如管,膜,板,扶强材,瓶和容器的物体。 本发明的聚合物材料还可以与其它材料如其它聚合物共混,并且因此可以通过增强其冲击强度的弹性体相改性。 本发明的聚合物材料可以是颜料和填料等添加剂母料的成分。 本发明还涉及所述聚合物材料在组合物中的相容剂的用途,所述组合物尤其包括属于不同聚合物类别的至少两种聚合物。

    Water-soluble or water-dispersible acrylic dispersants obtained by controlled radical polymerization
    69.
    发明授权
    Water-soluble or water-dispersible acrylic dispersants obtained by controlled radical polymerization 失效
    通过控制自由基聚合获得的水溶性或水分散性丙烯酸分散剂

    公开(公告)号:US07619045B2

    公开(公告)日:2009-11-17

    申请号:US11270751

    申请日:2005-11-09

    IPC分类号: C08F2/10

    摘要: The present invention relates to a process for the preparation in aqueous solution of water-soluble acrylic polymers or for the preparation in aqueous dispersion of water-dispersible acrylic co-polymers, polymerised from, the total being 100 mol %: a) 5 to 70 mol % of one or more monomer(s) (A) which are (alkoxy)polyalkylene glycol (meth)acrylates and/or ((alkoxy)polyalkylene glycol)(meth)acrylamides; b) 5 to 95 mol % of one or more unsaturated carboxylic monomer(s) (B); and c) 0 to 85 mol % of one or more hydrophobic monomer(s) (C) which are water insoluble, in the absence of a chain-transfer agent, and in the presence of a sufficient amount of a water-soluble alkoxyamine, until a conversion of at least 90% by weight of the monomers (A), (B) and (C) is obtained. The polymer has a polydispersity index Mw/ Mn advantageously 50%) is converted by the alkoxyamine and the polymerization is completed by a conventional radical initiator. The polymer obtained has a polydispersity index Mw/ Mn

    摘要翻译: 本发明涉及在水溶性丙烯酸类聚合物的水溶液中制备或在水分散性丙烯酸共聚物的水分散体中制备方法,聚合的总共为100摩尔%:a)5至70 (甲氧基)聚亚烷基二醇(甲基)丙烯酸酯和/或((烷氧基)聚亚烷基二醇)(甲基)丙烯酰胺的一种或多种单体(A)的摩尔% b)5〜95摩尔%的一种或多种不饱和羧酸单体(B); 和c)在不存在链转移剂的情况下,在足够量的水溶性烷氧基胺存在下,0至85mol%的一种或多种水不溶性疏水单体(C) 直到得到至少90重量%的单体(A),(B)和(C)的转化率。 聚合物的多分散指数Mw / Mn有利地为10万g / mol至50 000 g / mol的Mn。 或者,只有一些单体(> 50%)被烷氧基胺转化,聚合通过常规的自由基引发剂完成。 所得聚合物的多分散指数Mw / MnMw为1000000g / mol至500000g / mol,有利地为30,000至150000g / mol。

    Hydrogenation method for unsaturated block copolymers and hydrogenated unsaturated block copolymers
    70.
    发明授权
    Hydrogenation method for unsaturated block copolymers and hydrogenated unsaturated block copolymers 失效
    不饱和嵌段共聚物和氢化不饱和嵌段共聚物的氢化方法

    公开(公告)号:US07202308B2

    公开(公告)日:2007-04-10

    申请号:US10466170

    申请日:2001-11-23

    IPC分类号: C08F8/02

    摘要: Use is made, for selectively hydrogenating the olefinic double bonds of block copolymers, at least one block of which comprises olefinic double bonds, using a catalyst based on a metal from Group VIII in a medium comprising an organic solvent for the copolymer and an ionic liquid as solvent for the catalyst, of a water-immiscible ionic liquid, preferably an ionic liquid for which the anion is the hexafluorophosphate anion and the cation is the 1-butyl-3-methylimidazolium (bmim+) or 1-ethyl-3-methylimidazolium (emim+) cation.Applied to poly(styrene)-b-poly(butadiene)-b-poly(methyl methacrylate) block copolymers, the poly(butadiene) block of which predominantly possesses a 1,4-microstructure, this process results in copolymers for which the degree of hydrogenation is at least equal to 50% and which exhibit a melting point of greater than 30 °C.

    摘要翻译: 使用在包含共聚物的有机溶剂的介质中使用基于VIII族金属的催化剂和至少一个嵌段共聚物的烯属双键来选择性氢化嵌段共聚物的烯属双键,并且使用离子液体 作为催化剂的溶剂,与水不混溶的离子液体,优选阴离子是六氟磷酸盐阴离子的离子液体,阳离子是1-丁基-3-甲基咪唑鎓(bmim +)或 1-乙基-3-甲基咪唑鎓(emim + +)阳离子。