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
    • 5. 发明授权
    • Method for the production of poly(3-hydroxyalkanoates) in the presence of a nucleophile
    • 在亲核试剂存在下生产聚(3-羟基链烷酸酯)的方法
    • US07019107B2
    • 2006-03-28
    • US10505707
    • 2003-02-26
    • Gerrit LuinstraMarkus AllmendingerBernhard Rieger
    • Gerrit LuinstraMarkus AllmendingerBernhard Rieger
    • C08G59/68C08G65/10
    • C08G63/823C08G63/08
    • The invention relates to a catalytical process for preparing poly(3-hydroxyalkanoates) by copolymerizing an oxirane compound with carbon monoxide in the presence of a) at least one single- or multicenter neutral transition metal complex (A) based on a metal of groups 5 to 11 of the Periodic Table of the Elements, in which the metal center(s) is/are present in the formal oxidation state 0, and/or b) at least one single- or multicenter anionic transition metal complex (B) based on a metal of groups 5 to 11 of the Periodic Table of the Elements, where multicenter transition metal complexes have metal centers which, without exception, are of the same transition metal, which comprises carrying out the copolymerization in the presence of at least one nucleophile other than hydroxy-substituted pyridine compounds.
    • 本发明涉及通过在a)至少一种基于5族金属的单中心或多中心中性过渡金属络合物(A)的存在下将环氧乙烷化合物与一氧化碳共聚来制备聚(3-羟基链烷酸酯)的催化方法 至元素周期表中的11个,其中金属中心以形式氧化态0存在,和/或b)至少一种单或多中心阴离子过渡金属络合物(B),基于 元素周期表第5至11组的金属,其中多中心过渡金属络合物具有金属中心,无一例外是相同的过渡金属,其包括在存在至少一种亲核试剂的情况下进行共聚 比羟基取代的吡啶化合物。