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    • 41. 发明申请
    • Preparation of Functional Polymers
    • 功能性聚合物的制备
    • US20070244265A1
    • 2007-10-18
    • US10591425
    • 2005-03-07
    • Krzyszlof MatyjaszewskiBrent SumerlinNicolay TsarvskyJames Spanswick
    • Krzyszlof MatyjaszewskiBrent SumerlinNicolay TsarvskyJames Spanswick
    • C08F8/30C08F226/06C08F4/619C08F8/00
    • C08F8/30C08F293/005C08F2438/01C08F2438/03
    • The process of the present invention is directed toward conducting highly selective, high yield post polymerization reactions on polymers to prepare functionalized polymers. An embodiment of the present invention comprises conducting click chemistry reactions on polymers. Preferably, the polymers were prepared by controlled polymerization processes. Therefore, embodiments of the present invention comprise processes for the preparation of polymers comprising conducting a click chemistry reaction on a functional group attached to a polymer, wherein the polymer has a molecular weight distribution of less than 2.0. The functional polymers may be prepared by converting an attached functional unit on the polymer thereby providing site specific functional materials, site specific functional materials comprising additional functionality, or chain extended functional materials. Embodiments of the process of the present invention include functionalization reactions, chain extensions reactions, to form mock copolymer linking reactions, and attaching side chains to form graft copolymers, for example.
    • 本发明的方法涉及在聚合物上进行高选择性,高收率的后聚合反应以制备官能化聚合物。 本发明的一个实施方案包括对聚合物进行点击化学反应。 优选地,通过控制聚合方法制备聚合物。 因此,本发明的实施方案包括制备聚合物的方法,包括在连接到聚合物上的官能团上进行点击化学反应,其中聚合物的分子量分布小于2.0。 官能聚合物可以通过在聚合物上转化附着的官能单元来制备,从而提供位点特异性功能材料,包含附加官能团的位点特异性功能材料或链延伸的功能材料。 本发明方法的实施方案包括例如官能化反应,延伸链反应,形成嵌段共聚物连接反应和连接侧链以形成接枝共聚物。
    • 42. 发明授权
    • Production, purification and polymerization of aromatic dicarboxylic acids
    • 芳香族二羧酸的生产,纯化和聚合
    • US06642407B2
    • 2003-11-04
    • US10133083
    • 2002-04-26
    • Krishna Kulai RaoRussell D. SellenXiaobing FengJames SpanswickWilliam F. Huber, Jr.
    • Krishna Kulai RaoRussell D. SellenXiaobing FengJames SpanswickWilliam F. Huber, Jr.
    • C07C6748
    • C07C51/493C07C63/38
    • This invention provides a process for purifying the crude aromatic dicarboxylic acids produced by oxidation of dialkyl aromatic hydrocarbons and for using the purified acids in the preparation of polyethylene terephthalate, polyethylene naphthalate and other polyesters. The invention simplifies the manufacturing process by converting the crude aromatic acids into bis-glycol esters in an esterification reactor 4, from which the esterified partial oxidation impurities present in the oxidation product are removed by distillation in distillation tower 5. After removal of the volatile impurities, the dicarboxylic acid esters can separated by distillation in distillation tower 6 or by crystallization and converted to polyesters by polycondensation. The volatile impurities removed as overhead from tower 5 can be recycled as stream 16 to the oxidation reactor where they act as oxidation promoters thereby optionally allowing for a bromine-free oxidation process for dialkyl aromatic hydrocarbons.
    • 本发明提供了一种净化由二烷基芳烃氧化产生的粗芳族二羧酸和在制备聚对苯二甲酸乙二醇酯,聚萘二甲酸乙二醇酯和其它聚酯中使用纯化酸的方法。 本发明通过在酯化反应器4中将粗芳香酸转化为双 - 二醇酯来简化制造过程,通过在蒸馏塔5中蒸馏除去存在于氧化产物中的酯化的部分氧化杂质。除去挥发性杂质 ,二羧酸酯可以通过在蒸馏塔6中蒸馏或通过结晶分离,并通过缩聚转化成聚酯。 从塔架5塔顶除去的挥发性杂质可作为料流16再循环到氧化反应器中,在该反应器中它们作为氧化促进剂,从而任选地允许二烷基芳族烃的无溴氧化方法。