Patent search ap:("BASF AG") AND inv:"HE JIHONG" Page 1

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发明专利
Phenothiazine or derivatives are used as stabilizers against polymerization and discoloration for N-alkenyl lactams with six- or more-membered lactam rings 未知

公开(公告)号：DE10121976A1

公开(公告)日：2001-11-29

申请号：DE10121976

申请日：2001-05-05

Applicant: BASF AG

Inventor： BOETTCHER ARND , PINKOS ROLF , LORENZ RUDOLF ERICH , NICKEL HANSJOERG , HE JIHONG

IPC: C07D201/18 , C07D279/20 , C07D227/087 , C07D211/76 , C07D223/10

Abstract: N-alkenyl lactams with \-6-membered rings are stabilized using phenothaizine or a derivative.

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