公开(公告)号：CA2449208A1

公开(公告)日：2002-12-19

申请号：CA2449208

申请日：2002-06-06

Applicant: BASF AG

Inventor： FIDORRA UWE ,  MESZAROS LADISLAUS ,  DAMBACH STEFAN ,  WENDEROTH BERND

IPC: F01P11/14 ,  C09K5/08 ,  C09K5/20 ,  H01M8/04

Abstract: The invention relates to antifreeze concentrates for cooling systems in fuel cell drives, which are used to produce ready-to-use aqueous cooling agent compositions having a maximum conductivity of 50 .mu.S/cm, based on alkylene glycols or the derivatives thereof, containing one or several five-membered heterocyclic compounds (azole derivatives) with 2 or 3 heteroatoms from the nitrogen and sulphur group which contain no or at the most one sulphur atom and which can include an aromatic or saturated six-membered fusion agent.

公开(公告)号：CA2442697C

公开(公告)日：2011-03-15

申请号：CA2442697

申请日：2002-04-03

Applicant: BASF AG

Inventor： WENDEROTH BERND ,  ROIDA MICHAEL ,  AYDIN BAYRAM ,  FIDORRA UWE

IPC: C10M133/44 ,  C10M141/06 ,  C10M105/78 ,  C10M107/34 ,  C10M133/38 ,  C10M135/36 ,  C10M137/02 ,  C10M137/12 ,  C10M139/00 ,  C10M145/36 ,  C10M169/04 ,  C10N30/12 ,  C10N40/08

Abstract: Hydraulic fluids, in particular brake fluids for motor vehicles, having improved corrosion protection, comprising (a) from 0.005 to 0.125% by weight of 1H-1,2,4-triazole, and (b) from 0 to 10% by weight of one or more further corrosion inhibitors, where, on concomitant use of 1H-1,2,3-benzotriazole and/or 1H-1,2,3-tolutriazole and/or derivatives thereof, the weight ratio between 1H-1,2,4-triazole and the said 1H-1,2,3-triazoles must be greater than 4:1.

公开(公告)号：NO325635B1

公开(公告)日：2008-06-30

申请号：NO20034495

申请日：2003-10-08

Applicant: BASF AG

Inventor： WENDEROTH BERND ,  ROIDA MICHAEL ,  FIDORRA UWE ,  AYDIN BAYRAM

IPC: C10M133/44 ,  C10M141/06 ,  C10M133/38 ,  C10M139/00 ,  C10M145/36 ,  C10M169/04 ,  C10N30/12 ,  C10N40/08

Abstract: Hydraulic fluids, in particular brake fluids for motor vehicles, having improved corrosion protection, comprising (a) from 0.005 to 0.125% by weight of 1H-1,2,4-triazole, and (b) from 0 to 10% by weight of one or more further corrosion inhibitors, where, on concomitant use of 1H-1,2,3-benzotriazole and/or 1H-1,2,3-tolutriazole and/or derivatives thereof, the weight ratio between 1H-1,2,4-triazole and the said 1H-1,2,3-triazoles must be greater than 4:1.

公开(公告)号：PL197796B1

公开(公告)日：2008-04-30

申请号：PL36715902

申请日：2002-04-03

Applicant: BASF AG

Inventor： WENDEROTH BERND ,  ROIDA MICHAEL ,  AYDIN BAYRAM ,  FIDORRA UWE

IPC: C10M133/44 ,  C10M141/06 ,  C10M133/38 ,  C10M139/00 ,  C10M145/36 ,  C10M169/04 ,  C10N30/12 ,  C10N40/08

公开(公告)号：PL367157A1

公开(公告)日：2005-02-21

申请号：PL36715702

申请日：2002-06-06

Applicant: BASF AG

Inventor： WENDEROTH BERND ,  DAMBACH STEFAN ,  MESZAROS LADISLAUS ,  FIDORRA UWE

IPC: F01P11/14 ,  C09K5/08 ,  C09K5/20 ,  H01M8/04

Abstract: An antifreeze concentrate for cooling systems in fuel-cell drives which gives ready-to-use aqueous coolant compositions having a conductivity of at most 50 muS/cm, based on alkylene glycols or derivatives thereof and containing one or more five-membered heterocyclic compounds (azole derivatives) having 2 or 3 hetero atoms from the group consisting of nitrogen and sulfur, which contain no or at most one sulfur atom and which may carry a fused aromatic or saturated six-membered ring.

公开(公告)号：PT1399523E

公开(公告)日：2005-01-31

申请号：PT02745366

申请日：2002-06-06

Applicant: BASF AG

Inventor： FIDORRA UWE ,  WENDEROTH BERND ,  STEFAN DAMBACH ,  LADISLAUS MESZAROS

IPC: F01P11/14 ,  C09K5/08 ,  C09K5/20 ,  H01M8/04

Abstract: An antifreeze concentrate for cooling systems in fuel-cell drives which gives ready-to-use aqueous coolant compositions having a conductivity of at most 50 muS/cm, based on alkylene glycols or derivatives thereof and containing one or more five-membered heterocyclic compounds (azole derivatives) having 2 or 3 hetero atoms from the group consisting of nitrogen and sulfur, which contain no or at most one sulfur atom and which may carry a fused aromatic or saturated six-membered ring.

公开(公告)号：NO20035521D0

公开(公告)日：2003-12-11

申请号：NO20035521

申请日：2003-12-11

Applicant: BASF AG

Inventor： WENDEROTH BERND ,  FIDORRA UWE ,  MESZAROS LADISLAUS ,  DAMBACH STEFAN

IPC: F01P11/14 ,  C09K5/08 ,  C09K5/20 ,  H01M8/04 ,  C09K

Abstract: An antifreeze concentrate for cooling systems in fuel-cell drives which gives ready-to-use aqueous coolant compositions having a conductivity of at most 50 muS/cm, based on alkylene glycols or derivatives thereof and containing one or more five-membered heterocyclic compounds (azole derivatives) having 2 or 3 hetero atoms from the group consisting of nitrogen and sulfur, which contain no or at most one sulfur atom and which may carry a fused aromatic or saturated six-membered ring.

公开(公告)号：NO20032794L

公开(公告)日：2003-08-19

申请号：NO20032794

申请日：2003-06-19

Applicant: BASF AG

Inventor： WENDEROTH BERND ,  MESZAROS LADISLAUS ,  DAMBACH STEFAN ,  FIDORRA UWE ,  BERGEMANN MARCO

IPC: C09K3/00 ,  C09K5/08 ,  C09K5/20 ,  H01M8/04 ,  H01M8/10

Abstract: The invention relates to antifreeze concentrates for cooling systems in fuel cell drives, from which are produced ready-to-use aqueous cooling agent compositions having a maximum conductivity of 50 mus/cm, based on alkylene glycols or the derivatives thereof, and containing orthosilicic acid esters of formula (I) wherein the variables R 1 to R 4 are the same or different and represent C 1 -C 20 alkyl substituents, C 2 -C 20 alkenyl substituents, C 1 -C 20 hydroxyalkyl substituents, optionally substituted C 6 -C 12 aryl substituents and/or glycol ether substituents of formula (CH 2 -CH 2 -O) n -R 5 wherein R 5 represents hydrogen or C 1 -C 5 alkyl and n represents a number between 1 and 5

公开(公告)号：CA2430443A1

公开(公告)日：2002-07-18

申请号：CA2430443

申请日：2001-12-14

Applicant: BASF AG

Inventor： FIDORRA UWE ,  BERGEMANN MARCO ,  MESZAROS LADISLAUS ,  WENDEROTH BERND ,  DAMBACH STEFAN

IPC: C09K3/00 ,  C09K5/08 ,  C09K5/20 ,  H01M8/04 ,  H01M8/10

Abstract: The invention relates to antifreeze concentrates for cooling systems in fuel cell drives, from which are produced ready-to-use aqueous cooling agent compositions having a maximum conductivity of 50 .mu.s/cm, based on alkylene glycols or the derivatives thereof, and containing orthosilicic acid esters of formula (I) wherein the variables R1 to R4 are the same or different and represent C1-C20 alkyl substituents, C2-C20 alkenyl substituents, C1-C20 hydroxyalkyl substituents, optionally substituted C6-C12 aryl substituents and/or glycol ether substituents of formula (CH2-CH2-O)n-R5 wherein R5 represents hydrogen or C1-C5 alkyl and n represents a number between 1 and 5.

公开(公告)号：DE10063951A1

公开(公告)日：2002-06-27

申请号：DE10063951

申请日：2000-12-20

Applicant: BASF AG

Inventor： WENDEROTH BERND ,  MESZAROS LADISLAUS ,  DAMBACH STEFAN ,  FIDORRA UWE ,  BERGEMANN MARCO

IPC: C09K3/00 ,  C09K5/08 ,  C09K5/20 ,  H01M8/04 ,  H01M8/10

Abstract: An antifreeze concentrate for use in fuel cell cooling systems which gives a ready-to-use aqueous cooling composition of maximum conductivity 50 mu S/cm is based on an alkylene glycol or derivative containing a specified ortho-silicic acid ester as corrosion inhibitor. An antifreeze concentrate for use in fuel cell cooling systems which gives a ready-to-use aqueous cooling composition of maximum conductivity 50 mu S/cm is based on an alkylene glycol or derivative containing an ortho-silicic acid ester of formula (I). Si(OR )(OR )(OR )(OR ) (I) R -R = 1-20C alkyl, 2-20C alkenyl or 1-20C hydroxyalkyl, optionally substituted 6-12C aryl and/or a glycol ether substituent of formula -(CH2CH2O)n-R ; R = H or 1-5C alkyl; and n = 1-5.