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    • 4. 发明授权
    • Use of oligomeric carbodiimides as stabilizers
    • 使用低聚碳二亚胺作为稳定剂
    • US08623945B2
    • 2014-01-07
    • US13421363
    • 2012-03-15
    • Theo SmitLaurence PottieSimone SchilloVolker FrenzRoelof van der Meer
    • Theo SmitLaurence PottieSimone SchilloVolker FrenzRoelof van der Meer
    • C08K5/3412C07D413/12C08K5/3415C08K5/353
    • C07D403/12C07D413/12C08K5/29C08K5/3412
    • This invention relates to a process for stabilizing polymers with oligomeric carbodiimides containing at least one heterocyclic end group and stabilizers. The oligomeric carbodiimides may be compounds of the general formula (I): where A1, A2 are each independently, identically or differently, hydrocarbon groups having 2 to 20 carbon atoms, B1, B2 are each independently, identically or differently, heterocycles, C1-C30-alcohols, polyetherols, polyesterols, amines, polyether amines, polyester amines, thioalcohols, polyether thiols, polyester thiols; R1, R2 are each independently, identically or differently: n is an integer from 2 to 100, and A1, A2, B1 and B2 may each be substituted at any desired position by C1-C20-alkyl, C2-C20-alkenyl, C2-C20-alkynyl, C1-C20-alkoxy, carbonyl oxygen (═O) or halogen, with the proviso that at least one B1 or B2 substituent is a heterocyclic end group. The invention also relates to compositions of the oligomeric carbodiimides and mixtures.
    • 本发明涉及一种使含有至少一个杂环端基和稳定剂的低聚碳二亚胺稳定聚合物的方法。 低聚碳二亚胺可以是通式(I)的化合物:其中A1,A2各自独立地,相同地或不同地是具有2-20个碳原子的烃基,B1,B2各自独立地,相同地或不同地是杂环,C1- C30醇,聚醚醚,聚酯醇,胺,聚醚胺,聚酯胺,硫代醇,聚醚硫醇,聚酯硫醇; R 1,R 2各自独立地,相同地或不同地表示:n是2至100的整数,并且A1,A2,B1和B2各自可以在任何所需位置被C 1 -C 20 - 烷基,C 2 -C 20 - 链烯基,C 2 -C 20炔基,C 1 -C 20 - 烷氧基,羰基氧(= O)或卤素,条件是至少一个B1或B2取代基是杂环端基。 本发明还涉及低聚碳二亚胺及其混合物的组合物。