利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

99 条记录 (耗时 0.035 秒)

    Thermosetting poly(thio)urethane formulation comprising at least one block copolymer and use thereof in optics for the production of organic lenses having improved toughness
    32.
    发明授权
    Thermosetting poly(thio)urethane formulation comprising at least one block copolymer and use thereof in optics for the production of organic lenses having improved toughness 有权
    包含至少一种嵌段共聚物的热固性聚（硫代）氨基甲酸酯配制剂及其在用于生产具有改进的韧性的有机透镜的光学中的用途

    公开(公告)号：US08299176B2

    公开(公告)日：2012-10-30

    申请号：US11910175

    申请日：2006-03-29

    申请人： Olivier Guerret ,  Boris Jaffrennou ,  Noemie Lesartre ,  Francoise Mechin ,  Jean-Pierre Pascault

    发明人： Olivier Guerret ,  Boris Jaffrennou ,  Noemie Lesartre ,  Francoise Mechin ,  Jean-Pierre Pascault

    IPC分类号： C08L75/04 ,  C08L53/00 ,  G02B1/04

    CPC分类号： C08L75/04 ,  C08G2270/00 ,  C08L33/08 ,  G02B1/041 ,  C08L33/00 ,  C08L2666/04

    摘要： The invention relates to a polymerisable liquid mixture comprising: (a) a polymerisable thermosetting composition which is a precursor by polymerization of a first thermoset polymer material, said composition containing at least one polythiol and/or one polyol, preferably a polythiol, and at least one polyiso(thio)cyanate; and (b) a second polymer material solubilized in the aforementioned polymerisable thermosetting composition, whereby the second material (i) contains at least one block copolymer comprising at least two polymer blocks A and B, namely an elastomer block A and a hydrophilic block B, and, following polymerization of the polymerisable mixture, (ii) forms domains which are rich in elastomer block A and which are dispersed throughout the first material, said domains being smaller than 80 nanometers and preferably smaller than 50 nanometers. The invention also relates to a transparent article having improved toughness, which is produced by means of polymerization of the above-mentioned polymerisable mixture, comprising an alloy of a first thermoset polymer material forming the matrix of said article and of a second polymer material which is dispersed throughout said first material. The aforementioned articles have improved resistance to impact and to crack propagation. The invention is suitable for use in ophthalmic optics.

    摘要翻译： 本发明涉及可聚合液体混合物，其包含：（a）可聚合的热固性组合物，其是通过第一热固性聚合物材料的聚合的前体，所述组合物含有至少一种多硫醇和/或一种多元醇，优选多硫醇，并且至少 一种多异（硫）氰酸酯; 和（b）溶解在上述可聚合热固性组合物中的第二聚合物材料，其中第二材料（i）含有至少一种包含至少两个聚合物嵌段A和B的嵌段共聚物，即弹性体嵌段A和亲水嵌段B， 并且在聚合可聚合的混合物之后，（ii）形成富含弹性体嵌段A并且分散在整个第一材料中的畴，所述畴小于80纳米，优选小于50纳米。 本发明还涉及具有改进的韧性的透明制品，其通过上述可聚合混合物的聚合制备，包括形成所述制品的基质的第一热固性聚合物材料和第二聚合物材料的合金，所述第二聚合物材料是 分散在所述第一材料中。 上述制品具有改善的抗冲击性和抗裂纹性。 本发明适用于眼科光学。

    Scorch-delaying composition
    35.
    发明授权
    Scorch-delaying composition 有权
    焦烧延迟成分

    公开(公告)号：US07829634B2

    公开(公告)日：2010-11-09

    申请号：US11575103

    申请日：2005-09-16

    申请人： Fabien Debaud ,  Jacques Kervennal ,  Alfredo Defrancisci ,  Olivier Guerret

    发明人： Fabien Debaud ,  Jacques Kervennal ,  Alfredo Defrancisci ,  Olivier Guerret

    IPC分类号： C08F4/00

    CPC分类号： C08K5/0008 ,  C08F8/30 ,  C08L21/00

    摘要： The invention relates to scorch prevention and, more specifically, to a composition which comprises a nitroxide and at least one organic peroxide and which can be used to delay scorching prior to crosslinking of thermoplastic compositions and/or elastomers. The invention also relates to a crosslinkable composition and to a crosslinking method.

    摘要翻译： 本发明涉及防焦烧，更具体地说涉及包含氮氧化物和至少一种有机过氧化物的组合物，其可用于在热塑性组合物和/或弹性体交联之前延迟焦烧。 本发明还涉及可交联组合物和交联方法。

    Water-soluble or water-dispersible acrylic dispersants obtained by controlled radical polymerization
    37.
    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

    申请人： Manuel Hidalgo ,  Stephanie Magnet ,  Olivier Guerret

    发明人： Manuel Hidalgo ,  Stephanie Magnet ,  Olivier Guerret

    IPC分类号： C08F2/10

    CPC分类号： C08F220/32 ,  C04B24/2647 ,  C04B24/2694 ,  C04B2103/0045 ,  C04B2103/408 ,  C08F2/16 ,  C08F2/38 ,  C08F220/06

    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。