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29 条记录 (耗时 0.056 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
    4.
    发明申请
    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
    包含至少一个嵌段共聚物的热固性聚（硫代）氨基甲酸酯配方及其在光学中的用途，用于生产具有改善的韧性的有机透镜

    公开(公告)号：US20090143545A1

    公开(公告)日：2009-06-04

    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： C08L53/00

    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 polymerisation 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 solubilised 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 polymerisation 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 polymerisation 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： 本发明涉及一种可聚合液体混合物，其包含：（a）可聚合热固性组合物，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; 并且（b）溶解在上述可聚合的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， 并且在可聚合混合物聚合之后，（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。

    Polyetherimide or polysulphone with polyepoxide partially reacted with aromatic polyamine
    5.
    发明授权
    Polyetherimide or polysulphone with polyepoxide partially reacted with aromatic polyamine 失效
    聚醚酰亚胺或聚砜与聚环氧化物与芳族多胺部分反应

    公开(公告)号：US06239232B1

    公开(公告)日：2001-05-29

    申请号：US09235336

    申请日：1999-01-22

    申请人： Yves Camberlin ,  Jacky Grenier ,  Jacques Vallet ,  Anthony Bonnet ,  Jean-Pierre Pascault ,  Mohamed Taha

    发明人： Yves Camberlin ,  Jacky Grenier ,  Jacques Vallet ,  Anthony Bonnet ,  Jean-Pierre Pascault ,  Mohamed Taha

    IPC分类号： C08L6302

    CPC分类号： C08L63/00 ,  C08G59/5033 ,  Y10T428/24994 ,  C08L81/00 ,  C08L79/08

    摘要： A polymer composition comprises at least one thermoplastic polymer selected from the group formed by polyetherimides and polysulphones and at least one epoxy resin modified by at least one aromatic polyamine. The epoxy resin is formed from at least one polyepoxide containing at least 2 epoxy groups in its molecule and the aromatic polyamine contains at least two primary amine groups in its molecule and preferably at least one alkyl substituent containing 1 to 12 carbon atoms located alpha to one of the amino groups. The molar ratio of the polyamine to the epoxy is such that, each amino group corresponds to 1.6 to 2.6 epoxy groups. The thermoplastic polymer content is preferably about 15% to 98% by weight with respect to the total weight of the polymer composition; the amount of epoxy resin modified by at least one aromatic polyamine is about 2% to 85% by weight with respect to the total weight of the polymer composition. These polymer compositions can be prepared in the molten state, without a solvent, at a temperature of about 100° C. to 250° C.

    摘要翻译： 聚合物组合物包含至少一种选自由聚醚酰亚胺和聚砜形成的基团的热塑性聚合物和至少一种由至少一种芳族多胺改性的环氧树脂。 环氧树脂由其分子中至少含有至少2个环氧基的聚环氧化物形成，芳族多胺在其分子中含有至少两个伯胺基团，优选至少一个含1至12个碳原子的烷基取代基位于一个 的氨基。 多胺与环氧的摩尔比使得每个氨基相当于1.6-2.6个环氧基。 相对于聚合物组合物的总重量，热塑性聚合物含量优选为约15％至98％重量; 由至少一种芳族多胺改性的环氧树脂的量相对于聚合物组合物的总重量为约2重量％至85重量％。 这些聚合物组合物可以在没有溶剂的情况下在约100℃至250℃的温度下以熔融状态制备。

    Process and installation for molding an optical lens
    6.
    发明授权
    Process and installation for molding an optical lens 失效
    用于成型光学透镜的工艺和安装

    公开(公告)号：US07950917B2

    公开(公告)日：2011-05-31

    申请号：US10598357

    申请日：2005-02-25

    申请人： Noémie Lesartre ,  Jérôme Dupuy ,  Abderrahim Maazouz ,  Jean-Pierre Pascault

    发明人： Noémie Lesartre ,  Jérôme Dupuy ,  Abderrahim Maazouz ,  Jean-Pierre Pascault

    IPC分类号： B29D11/00 ,  B29C45/30

    CPC分类号： B29C67/246 ,  B29C45/0001 ,  B29D11/00009 ,  Y10S425/808

    摘要： The object of the invention is a process for molding an optical element such as a lens (2). According to the invention, the element is obtained by a reaction injection molding process comprising the steps of mixing at least two polymerizing reactants and forcing the obtained reacting mixture by an injection duct (5) for filling under pressure a scaled mold cavity (4) having an entry side (43) provided with a casting opening (42) and an evacuation side (44) and providing a laminated flow of mixture in a spout (6) having a progressive enlarging transversal section between the outlet opening (52) of the injection duct (5) and the casting opening (42) of the mold cavity (4), for avoiding any turbulent area in said laminated flow, said evacuation side (44) being provided with means (45) for evacuating air contained in the mixture during mold filling. The invention also covers the molding installation adapted for using such a process.

    摘要翻译： 本发明的目的是用于模制诸如透镜（2）的光学元件的工艺。 根据本发明，通过反应注射成型方法获得元件，该方法包括以下步骤：混合至少两种聚合反应物，并通过注射管道（5）强制所得反应混合物，以在压力下填充比例缩放的模腔（4） 设置有铸造开口（42）和排气侧（44）的入口侧（43），并且在喷射器（6）的出口（52）之间具有逐渐扩大横截面的喷口（6）中提供混合物的层压流 管道（5）和模腔（4）的铸造开口（42），用于避免所述层压流中的任何湍流区域，所述抽空侧（44）设置有用于抽空混合物中的空气的装置（45） 模具填充。 本发明还包括适于使用这种方法的成型装置。

    Curable Composition Based on Polyurethane-Urea and on Block Copolymers, and Transparent Material Obtained From Said Composition
    7.
    发明申请
    Curable Composition Based on Polyurethane-Urea and on Block Copolymers, and Transparent Material Obtained From Said Composition 审中-公开
    基于聚氨酯 - 脲和嵌段共聚物的可固化组合物，以及由所述组合物获得的透明材料

    公开(公告)号：US20070191544A1

    公开(公告)日：2007-08-16

    申请号：US11623460

    申请日：2007-01-16

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

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

    IPC分类号： C08L63/00

    CPC分类号： C08G18/4879 ,  C08G18/10 ,  C08G18/3215 ,  C08L75/04 ,  C08G18/324 ,  C08L53/00

    摘要： Curable composition comprising (a) a prepolymer of the polyurethane type and (b) an aromatic diamine, especially of formula (I), in an amount such that the ratio of the number of amine functional groups of the diamine of formula (I) to the number of isocyanate functional groups of the prepolymer (a) is between 0.92 and 0.98, and at least 5% by weight, relative to the total weight of (a), (b) and (c), of a polystyrene-block-polybutadiene-block-poly)methyl methacrylate) block copolymer; method of preparing such a composition and transparent optical material obtained by heat treatment of said composition.

    摘要翻译： 可固化组合物，其包含（a）聚氨酯类型的预聚物和（b）芳族二胺，特别是式（I）的芳族二胺，其量使得式（I）的二胺的胺官能团数与 预聚物（a）的异氰酸酯官能团数相对于聚苯乙烯 - 嵌段共聚物（a），（b）和（c）的总重量，在0.92-0.98和至少5重量％ 聚丁二烯 - 嵌段聚）甲基丙烯酸甲酯）嵌段共聚物; 制备这种组合物的方法和通过所述组合物的热处理获得的透明光学材料。

    Thermosetting elastomer composition based on modified polycyanurate with improved thermal resistance
    8.
    发明授权
    Thermosetting elastomer composition based on modified polycyanurate with improved thermal resistance 有权
    基于改性聚氰脲酸酯的热固性弹性体组合物，具有改善的耐热性

    公开(公告)号：US06911500B2

    公开(公告)日：2005-06-28

    申请号：US10333741

    申请日：2001-07-27

    申请人： Francoise Mechin ,  Jean-Pierre Pascault ,  Stéphanie Lambour ,  Jacques Ferrand

    发明人： Francoise Mechin ,  Jean-Pierre Pascault ,  Stéphanie Lambour ,  Jacques Ferrand

    IPC分类号： F16C13/00 ,  C08G73/00 ,  C08G73/06 ,  C08L79/04 ,  C08L83/10

    CPC分类号： C08L79/04 ,  C08G73/0655 ,  C08L83/10 ,  Y10S525/941 ,  C08L2666/24 ,  C08L2666/04 ,  C08L83/00 ,  C08L2666/14

    摘要： The invention concerns a thermosetting elastomer composition based on modified polycyanurate with improved thermal resistance obtainable by a polymerization method in the presence of a catalyst (D) of a mixture comprising at least: (A) a cyanate, (B) a block copolymer consisting of: a) at least a central block (B1) non-miscible with the cyanate and sufficiently long to provide the composition with elastomeric character; and b) at least two terminal blocks (B2) located on each side of the central block and comprising groups reactive with the cyanate, each of the blocks (B2) being sufficiently long to be miscible with the cyanate; and (C) a mineral filler reactive with the cyanate, in proportions such that the ratio r is not less than 5, but remains less than a threshold value to avoid phase inversion, said method comprising steps which consist in: I) mixing (A), (B), (C) and (D) until a homogeneous mixture is obtained at a temperature higher than the melting point of (A) and of (B) but lower than about 130° C.; II) polymerizing the mixture at a temperature ranging between about 130 and about 170° C.; III) post-curing the polymerized mixture at a temperature not lower than about 200° C. to complete the reaction; the values of dsrupt and of derupt of the resulting composition being not more than +−30%. The invention also concerns the method for preparing said composition and its use.

    摘要翻译： 本发明涉及一种基于改性聚氰化脲的热固性弹性体组合物，其具有改进的耐热性，其可通过聚合方法在催化剂（D）存在下得到，所述催化剂（D）至少包含：（A）氰酸酯，（B）由 ：a）至少一个与氰酸盐不可混溶的中心块（B1），并足够长地提供具有弹性特征的组合物; 和b）位于中央块的每一侧的至少两个端子块（B2），并且包括与氰酸盐反应的组，每个块（B2）足够长以与氰酸盐混溶; 和（C）与氰酸盐反应的矿物填料，其比例r不小于5，但保持小于阈值以避免相转化，所述方法包括以下步骤：I）混合（A ），（B），（C）和（D），直到在高于（A）和（B）的熔点但低于约130℃的温度下获得均匀的混合物; II）在约130和约170℃之间的温度下聚合混合物; III）在不低于约200℃的温度下对聚合的混合物进行后固化以完成反应; 所得组合物的dsrupt值和猝发值不超过±30％。 本发明还涉及制备所述组合物及其用途的方法。