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    • 3. 发明申请
    • GRAFT COPOLYMER AS A GAS HYDRATE INHIBITOR
    • PFROPOPOLYMER作为水解酸化剂
    • WO2009083377A2
    • 2009-07-09
    • PCT/EP2008066883
    • 2008-12-05
    • BASF SEREICHENBACH-KLINKE ROLANDNEUBECKER KARIN
    • REICHENBACH-KLINKE ROLANDNEUBECKER KARIN
    • C09K8/524C08F290/145
    • Disclosed are graft copolymers based on a polyamide that is reacted with maleic anhydride and contains at least one vinylically unsaturated side chain, said grafted side chain containing at least one representative selected from a) N-vinylcaprolactam and/or b) N-vinylpyrrolidone. Natural and synthetic polyamides, inter alia, are used as preferred polyamide components. Such graft copolymers and polyamide-based graft copolymers in general which are composed of at least one side chain containing ethylenically unsaturated compounds are generally suitable in construction-related chemical applications, for developing, exploiting, and completing underground crude oil and natural gas reservoirs, in deep wells, and for conducting and transporting oil or gas, in the last instance especially as a gas hydrate inhibitor.
    • 有接枝共聚物的基础上提出的聚酰胺,用马来酸酐和具有至少一个乙烯属不饱和侧链反应,所述接枝的侧链含有来自选择的至少一个部件)N-乙烯基己内酰胺和/或b)N-乙烯基吡咯烷酮。 优选的聚酰胺组分包括天然的,但也是合成的聚酰胺。 这样的接枝共聚物,而且通常的接枝共聚物,聚酰胺类和由包含侧链的至少一种烯属不饱和化合物是在建筑应用通常是有用的,而且在地下油气藏的发展,开发和完成,并在深井,以及在促进和 石油或天然气的输送,特别是作为天然气水合物抑制剂。