公开(公告)号：CA1178578A

公开(公告)日：1984-11-27

申请号：CA397859

申请日：1982-03-08

Applicant: BASF AG

Inventor： OPPENLAENDER KNUT ,  STORK KARL ,  BARTHOLD KLAUS

IPC: C07D233/06 ,  C07D239/06 ,  C09K8/54 ,  C23F11/14 ,  C07D233/26 ,  C23F11/10

Abstract: The invention relates to corrosion inhibitors which are amides of cyclic amidines. The inhibitors are particularly useful for preventing the corrosion of metals caused by H2S and CO2 in water-in-oil, particularly in saltwater-in-oil emulsions.

公开(公告)号：GB2135685A

公开(公告)日：1984-09-05

申请号：GB8400774

申请日：1984-01-12

Applicant: BASF AG

Inventor： BAUR RICHARD ,  OPPENLAENDER KNUT ,  STRICKLER RAINER ,  BARTHOLD KLAUS

IPC: C08G69/40 ,  C10G33/04 ,  C08G65/26 ,  B01D17/04

Abstract: Oxyalkylated polyamidoamines are obtained by reacting a polyamine with caprolactam and oxyalkylating the product with alkylene oxides, and are used for rapidly dewatering crude oil.

公开(公告)号：NO823504L

公开(公告)日：1983-04-25

申请号：NO823504

申请日：1982-10-21

Applicant: BASF AG

Inventor： DISTLER HARRY ,  WIDDER RUDI ,  BARTHOLD KLAUS ,  ELFERS GUENTHER

IPC: C09K8/60 ,  E21B43/25 ,  A01N ,  C02F

公开(公告)号：NO821627L

公开(公告)日：1982-11-16

申请号：NO821627

申请日：1982-05-14

Applicant: BASF AG

Inventor： OPPENLAENDER KNUT ,  STORK KARL ,  BARTHOLD KLAUS

IPC: C09K8/54 ,  C23F11/14 ,  C23F11/173 ,  E21B41/02 ,  C23F