公开(公告)号：DE59700690D1

公开(公告)日：1999-12-16

申请号：DE59700690

申请日：1997-02-13

Applicant: BASF AG

Inventor： MESZAROS LADISLAUS ,  GILLICH MICHAEL ,  PFITZNER KLAUS ,  OPPENLAENDER KNUT ,  GUENTHER WOLFGANG

IPC: C07D233/60 ,  C09K5/00 ,  C09K5/20 ,  C23F1/14 ,  C23F11/08 ,  C23F11/14 ,  C23G1/06

Abstract: PCT No. PCT/EP97/00648 Sec. 371 Date Aug. 11, 1998 Sec. 102(e) Date Aug. 11, 1998 PCT Filed Feb. 13, 1997 PCT Pub. No. WO97/30133 PCT Pub. Date Aug. 21, 1997Quaternized imidazoles I in which R1 and R3 independently of one another are saturated or unsaturated hydrocarbon radicals of 1-12 carbon atoms which can be substituted by oxygen-functional groups or interrupted by nonadjacent oxygens, R2, R4 and R5 independently of one another are hydrogen or saturated or unsaturated hydrocarbon radicals of 1-12 carbon atoms which can be substituted by oxygen-functional groups or interrupted by nonadjacent oxygens, it being possible for R4 and R5, together with the corresponding imidazole carbons, to form a five- or six-membered ring, and X(-) is an anion, are used as corrosion inhibitors in the corrosion protection of nonferrous metals, especially for car radiator protection.

公开(公告)号：AT186561T

公开(公告)日：1999-11-15

申请号：AT97903264

申请日：1997-02-13

Applicant: BASF AG

Inventor： MESZAROS LADISLAUS ,  GILLICH MICHAEL ,  PFITZNER KLAUS ,  OPPENLAENDER KNUT ,  GUENTHER WOLFGANG

IPC: C07D233/60 ,  C09K5/00 ,  C09K5/20 ,  C23F1/14 ,  C23F11/08 ,  C23F11/14 ,  C23G1/06

Abstract: PCT No. PCT/EP97/00648 Sec. 371 Date Aug. 11, 1998 Sec. 102(e) Date Aug. 11, 1998 PCT Filed Feb. 13, 1997 PCT Pub. No. WO97/30133 PCT Pub. Date Aug. 21, 1997Quaternized imidazoles I in which R1 and R3 independently of one another are saturated or unsaturated hydrocarbon radicals of 1-12 carbon atoms which can be substituted by oxygen-functional groups or interrupted by nonadjacent oxygens, R2, R4 and R5 independently of one another are hydrogen or saturated or unsaturated hydrocarbon radicals of 1-12 carbon atoms which can be substituted by oxygen-functional groups or interrupted by nonadjacent oxygens, it being possible for R4 and R5, together with the corresponding imidazole carbons, to form a five- or six-membered ring, and X(-) is an anion, are used as corrosion inhibitors in the corrosion protection of nonferrous metals, especially for car radiator protection.

公开(公告)号：DE19605509A1

公开(公告)日：1997-08-21

申请号：DE19605509

申请日：1996-02-15

Applicant: BASF AG

Inventor： MESZAROS LADISLAUS ,  GILLICH MICHAEL ,  PFITZNER KLAUS DR ,  OPPENLAENDER KNUT DR ,  GUENTHER WOLFGANG DR

IPC: C07D233/60 ,  C09K5/00 ,  C09K5/20 ,  C23F1/14 ,  C23F11/08 ,  C23F11/14 ,  C23G1/06 ,  C09K15/30

Abstract: The invention concerns the use as corrosion-inhibitors of quaternized imidazoles (I), wherein R and R , independently of each other, designate saturated or unsaturated C1-C12 hydrocarbon groups which can be substituted by groups having an oxygen function or interrupted by non-adjacent oxygen atoms; R , R and R , independently of one another, designate hydrogen or saturated or unsaturated C1-C12 hydrocarbon groups which can be substituted by groups having an oxygen function or interrupted by non-adjacent oxygen atoms, R and R being able to form a five- or six-member ring together with the corresponding imidazole carbon atoms; and X stands for an anion. These substances are used for protecting nonferrous metals against corrosion, in particular for protecting radiators in the automotive field.