会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 22. 发明授权
    • Process for the preparation of block copolymers for tire tread compositions, and these copolymers
    • 制备轮胎胎面组合物的​​嵌段共聚物的方法,以及这些共聚物
    • US07504454B2
    • 2009-03-17
    • US11267260
    • 2005-11-07
    • Pierre Lesage
    • Pierre Lesage
    • C08K3/04
    • C08L53/00C08F297/023C08F297/044C08L53/02C08L2666/02
    • A process for the preparation of a functionalized, coupled or starred block copolymer which is usable in a sulphur-cross-linkable rubber composition of reduced hysteresis in the cross-linked state, one at least of said blocks consisting of a polyisoprene and at least one other block consisting of a diene elastomer other than a polyisoprene the molar ratio of units originating from one or more conjugated dienes of which is greater than 15%. The process includes the steps of: copolymerization of one or more monomers comprising a conjugated diene other than isoprene using a catalytic system comprising at least one hydrocarbon solvent, a compound A of a metal of group IIIA, a compound B of an alkaline-earth metal and a polymer initiator C comprising a C—Li bond which is formed of a monolithiated polyisoprene intended to form the polyisoprene block, and addition to the product of the copolymerization of a functionalizing, coupling or starring agent comprising an acetoxy group and of formula Rn—Sn—(O—CO—R′)4−n, where n is a natural integer of from 0 to 4 and where R and R′ are each alkyl, cycloalkyl, aryl or aralkyl groups which may be identical or different, so that said or each block formed of a diene elastomer other than a polyisoprene is functionalized, coupled or starred.
    • 一种制备功能化,偶联或加星型嵌段共聚物的方法,其可用于交联状态下具有降低的滞后的硫交联橡胶组合物,至少所述嵌段由聚异戊二烯和至少一种 由除了聚异戊二烯以外的二烯弹性体组成的其它嵌段,源自一种或多种共轭二烯的单元的摩尔比大于15%。 该方法包括以下步骤:使用包含至少一种烃溶剂的催化体系,IIIA族金属的化合物A,碱土金属的化合物B,共聚一种或多种包含异戊二烯以外的共轭二烯的单体 以及包含由用于形成聚异戊二烯嵌段的聚酯聚异戊二烯形成的C-Li键的聚合物引发剂C,以及包含乙酰氧基和式Rn- Sn-(O-CO-R')4-n,其中n为0至4的整数,R和R'各自可以相同或不同的烷基,环烷基,芳基或芳烷基,使得 所述或由除聚异戊二烯以外的二烯弹性体形成的每个嵌段被官能化,偶联或加成。
    • 23. 发明授权
    • Preparation process for block copolymers for tire tread compositions, and such copolymers
    • 用于轮胎胎面组合物的​​嵌段共聚物的制备方法和这种共聚物
    • US07205360B2
    • 2007-04-17
    • US10835409
    • 2004-04-30
    • Pierre RobertJean-Michel FavrotPierre Lesage
    • Pierre RobertJean-Michel FavrotPierre Lesage
    • C08F297/02C08K3/36
    • C08F297/046C08F297/02C08L53/00C08L53/02Y10S152/905
    • A preparation process for a copolymer having two blocks usable in a sulphur-cross-linkable rubber composition of reduced hysteresis in the cross-linked state, such a block copolymer in which one of the blocks is a polyisoprene and the other a diene elastomer other than a polyisoprene, and this rubber composition for tire treads. A process for the preparation of this copolymer involves copolymerizing one or more monomers including a conjugated diene other than isoprene using a catalytic system including at least one hydrocarbon solvent, a compound A of a metal of group IIIA, a compound B of an alkaline-earth metal and a polymeric initiator C having a C—Li bond which is constituted of a monolithiated polyisoprene intended to form the polyisoprene block, the number-average molecular weight Mn1 of the polyisoprene block being between 2,500 and 20,000 g/mol. A copolymer is obtained in which the block composed of the diene elastomer has a number-average molecular weight Mn2 of between 65,000 and 350,000 g/mol and a content of trans-1,4 linkages equal to or greater than 70%.
    • 一种共聚物的制备方法,其具有可用于交联状态下滞后性降低的可硫交联橡胶组合物中的两个嵌段,其中一个嵌段是聚异戊二烯,另一个嵌段共聚物是除二 聚异戊二烯和用于轮胎胎面的该橡胶组合物。 制备该共聚物的方法包括使用包括至少一种烃溶剂,IIIA族金属的化合物A,碱土金属化合物B的催化体系共聚一种或多种包括异戊二烯以外的共轭二烯的单体 金属和具有C-Li键的聚合物引发剂C,其由旨在形成聚异戊二烯嵌段的聚酯聚异戊二烯构成,聚异戊二烯嵌段的数均分子量M n1为2,500至20,000 g / mol。 得到共聚物,其中由二烯弹性体组成的嵌段具有65,000至350,000g / mol的数均分子量M N2,并且反式-1,4键的含量等于或等于 大于70%。
    • 24. 发明申请
    • TIRE WITH IMPROVED GRIP ON WET GROUND
    • 轮胎与湿地接触改善
    • US20140235751A1
    • 2014-08-21
    • US14347083
    • 2012-09-26
    • Pierre LesageGarance LopitauxDidier Vasseur
    • Pierre LesageGarance LopitauxDidier Vasseur
    • C08L7/00
    • C08L7/00C08K3/36C08K5/0016C08L9/00C08L57/02
    • A tire having an improved wet grip, in particular for a passenger vehicle, a van, or a two-wheel vehicle, includes a tread formed of a rubber composition. The rubber composition includes at least (phr meaning parts by weight per hundred parts of elastomer): as a first diene elastomer, from 55 to 95 phr of natural rubber or synthetic polyisoprene; as a second diene elastomer, from 5 to 45 phr of a polybutadiene or butadiene copolymer having a glass transition temperature (Tg) which is greater than −70° C.; as a reinforcing filler, more than 90 phr and less than 150 phr of an inorganic filler; and as a plasticizer, more than 10 phr of a thermoplastic hydrocarbon resin exhibiting a glass transition temperature (Tg) greater than 20° C.
    • 具有改进的湿抓地力的轮胎,特别是用于客车,厢式货车或两轮车辆的轮胎包括由橡胶组合物形成的胎面。 橡胶组合物至少包括(phr表示每100份弹性体重量份):作为第一二烯弹性体,55至95phr的天然橡胶或合成的聚异戊二烯; 作为第二二烯弹性体,5至45phr的玻璃化转变温度(Tg)大于-70℃的聚丁二烯或丁二烯共聚物; 作为增强填料,超过90phr和小于150phr的无机填料; 并且作为增塑剂,超过10phr的玻璃化转变温度(Tg)大于20℃的热塑性烃树脂。
    • 27. 发明授权
    • Process for the preparation of block copolymers for tire tread compositions and these copolymers
    • 制备轮胎胎面组合物和这些共聚物的嵌段共聚物的方法
    • US07625983B2
    • 2009-12-01
    • US11267259
    • 2005-11-07
    • Pierre Lesage
    • Pierre Lesage
    • C08F4/00C08F251/00C08F253/00C08F16/26C08F20/32C08F116/16C08F36/00C08F8/34C08F36/08C08F236/08
    • C08L53/00C08F297/023C08F297/044C08L53/02C08L2666/02
    • A process for the preparation of a functionalized, coupled or starred block copolymer which is usable in a sulphur-cross-linkable rubber composition of reduced hysteresis in the cross-linked state, one at least of said blocks consisting of a polyisoprene and at least one other block consisting of a diene elastomer other than a polyisoprene the molar ratio of units originating from one or more conjugated dienes of which is greater than 15%. The process includes the steps of: (i) copolymerization of one or more monomers comprising a conjugated diene other than isoprene using a catalytic system comprising a hydrocarbon solvent, a compound A of a metal of group IIIA, a compound B of an alkaline-earth metal and a polymer initiator C comprising a C—Li bond which is formed of a monolithiated polyisoprene intended to form the polyisoprene, said polyisoprene block(s) having a number-average molecular weight Mn1 of between 2,500 and 20,000 g/mol, so that said block(s) other than a polyisoprene has/have a content of trans-1,4 linkages equal to or greater than 70% and a number-average molecular weight Mn2 of between 65,000 and 350,000 g/mol, and (ii) addition to the product of copolymerization of a functionalizing, coupling or starring agent comprising one, two or at least three epoxy groups respectively, so that said block other than a polyisoprene is functionalized, coupled or starred.
    • 一种制备功能化,偶联或加星型嵌段共聚物的方法,其可用于交联状态下具有降低的滞后的硫交联橡胶组合物,至少所述嵌段由聚异戊二烯和至少一种 由除了聚异戊二烯以外的二烯弹性体组成的其它嵌段,源自一种或多种共轭二烯的单元的摩尔比大于15%。 该方法包括以下步骤:(i)使用包含烃溶剂,IIIA族金属的化合物A,碱土金属化合物B的催化体系,共聚一种或多种包含异戊二烯以外的共轭二烯的单体 金属和聚合物引发剂C,其包含由旨在形成聚异戊二烯的整体式聚异戊二烯形成的C-Li键,所述聚异戊二烯嵌段的数均分子量Mn1为2500〜20,000g / mol,使得 除聚异戊二烯之外的所述嵌段具有等于或大于70%的反式-1,4-键的含量和65,000至350,000g / mol的数均分子量Mn2,和(ii)加成 涉及分别包含一个,两个或至少三个环氧基团的官能化,偶联或起始原料共聚的产物,使得除聚异戊二烯以外的所述嵌段被官能化,偶联或加成。
    • 28. 发明申请
    • Process for the preparation of block copolymers for tire tread compositions and these copolymers
    • 制备轮胎胎面组合物和这些共聚物的嵌段共聚物的方法
    • US20060148994A1
    • 2006-07-06
    • US11267259
    • 2005-11-07
    • Pierre Lesage
    • Pierre Lesage
    • C08F297/02
    • C08L53/00C08F297/023C08F297/044C08L53/02C08L2666/02
    • A process for the preparation of a functionalized, coupled or starred block copolymer which is usable in a sulphur-cross-linkable rubber composition of reduced hysteresis in the cross-linked state, one at least of said blocks consisting of a polyisoprene and at least one other block consisting of a diene elastomer other than a polyisoprene the molar ratio of units originating from one or more conjugated dienes of which is greater than 15%. The process includes the steps of: (i) copolymerization of one or more monomers comprising a conjugated diene other than isoprene using a catalytic system comprising a hydrocarbon solvent, a compound A of a metal of group IIIA, a compound B of an alkaline-earth metal and a polymer initiator C comprising a C—Li bond which is formed of a monolithiated polyisoprene intended to form the polyisoprene, said polyisoprene block(s) having a number-average molecular weight Mn1 of between 2,500 and 20,000 g/mol, so that said block(s) other than a polyisoprene has/have a content of trans-1,4 linkages equal to or greater than 70% and a number-average molecular weight Mn2 of between 65,000 and 350,000 g/mol, and (ii) addition to the product of copolymerization of a functionalizing, coupling or starring agent comprising one, two or at least three epoxy groups respectively, so that said block other than a polyisoprene is functionalized, coupled or starred.
    • 一种制备功能化,偶联或加星型嵌段共聚物的方法,其可用于交联状态下具有降低的滞后的硫交联橡胶组合物,至少所述嵌段由聚异戊二烯和至少一种 由除了聚异戊二烯以外的二烯弹性体组成的其它嵌段,源自一种或多种共轭二烯的单元的摩尔比大于15%。 该方法包括以下步骤:(i)使用包含烃溶剂,IIIA族金属的化合物A,碱土金属化合物B的催化体系,共聚一种或多种包含异戊二烯以外的共轭二烯的单体 金属和聚合物引发剂C,其包含由旨在形成所述聚异戊二烯的聚酯聚异戊二烯形成的C-Li键,所述聚异戊二烯嵌段的数均分子量M N 2≤2,500 和20,000g / mol,使得除聚异戊二烯之外的所述嵌段具有等于或大于70%的反式-1,4键含量和数均分子量M N 2, 和(ii)分别加入包含一个,两个或至少三个环氧基团的官能化,偶联或引发剂的共聚产物,使得除聚异戊二烯以外的所述嵌段是 功能化,耦合或加星标。