公开(公告)号：EP1529088B1

公开(公告)日：2012-08-29

申请号：EP03784149.1

申请日：2003-08-01

Applicant: BASF SE

Inventor： WENDEROTH, Bernd ,  FERNANDEZ-GONZALEZ, Monica ,  DAMBACH, Stefan ,  MACHETANZ, Ludwina ,  NITZSCHKE, Uwe

IPC: C09K5/20 ,  C23F11/12

CPC classification number: C09K5/20 ,  C23F11/08

公开(公告)号：EP1594937B1

公开(公告)日：2012-03-21

申请号：EP04703762.7

申请日：2004-01-21

Applicant: BASF SE

Inventor： WENDEROTH, Bernd ,  KORMANN, Claudius ,  ZÖLLNER, Horst ,  MESZAROS, Ladislaus ,  HILLERNS, Frank

IPC: C09K5/10 ,  C09K5/20

CPC classification number: C09K5/20 ,  C09K5/10

Abstract: The invention relates to a thermal liquid concentrate containing a glycol and: a) 0.05 to 10 percent by weight, preferably 0.1 to 5 percent by weight, of one or several aliphatic amines of general formula (I), wherein R1 to R3 can be identical or different and represent hydrogen, optionally branched C1-C9 alkyl, or C1-C9 hydroxyalkyl; b) 0.005 to 3 percent by weight, preferably 0.01 to 1 percent by weight, of one or several optionally stabilized silicates; c) 0 to 3 percent by weight of one or several corrosion inhibitors selected among the group comprising hydrocarbon triazoles and hydrocarbon thiazoles; d) 0 to 5 percent by weight of one or several alkali metal molybdates, ammonium molybdates, or substituted ammonium molybdates; and e) 0 to 1 percent by weight of one or several polymeric hard water stabilizers. The inventive concentrates are particularly suitable for use in solar systems after being optionally diluted with water, thermal liquid being in direct contact with the glass of the solar system.

公开(公告)号：EP1572830B1

公开(公告)日：2011-03-02

申请号：EP03785723.2

申请日：2003-12-03

Applicant: BASF SE

Inventor： WENDEROTH, Bernd ,  FLAIG, Birgit

IPC: C09K5/20 ,  C09K5/10 ,  H01M8/04

CPC classification number: C09K5/20 ,  C09K5/10 ,  H01M8/04029 ,  Y02P70/56

Abstract: The invention relates to an anti-freeze concentrate for the cooling systems of fuel cell drives, from which ready-to-use aqueous coolant compositions with a maximum conductivity of 50 µS/cm can be produced, based on 1,3-propanediol or mixtures of 1,3-propanediol with alkylene glycols and/or derivatives thereof, comprising one or more five-membered heterocyclic compounds (azole derivatives) with two or three heteroatoms from the group nitrogen or sulphur which comprise no or a maximum of one sulphur atoms and which can have an aromatic or saturated six-membered annelated ring.

公开(公告)号：EP1618167B1

公开(公告)日：2008-09-10

申请号：EP04722834.1

申请日：2004-03-24

Applicant: BASF SE

Inventor： WENDEROTH, Bernd ,  DAMBACH, Stefan ,  WEISS, Gerhard

IPC: C09K5/20 ,  C23F11/10 ,  C23F11/08

CPC classification number: C23F11/164 ,  C09K5/20 ,  C23F11/10 ,  C23F11/145

Abstract: The invention relates to an antifreeze concentrate based on alkylene glycols, glycerin, and/or 1,3-propanediol. Said antifreeze concentrate contains a) 0.05 to 10 percent by weight, preferably 0.5 to 5 percent by weight, relative to the total quantity of the concentrate of one or several polyethylene glycols and/or polypropylene glycols, and b) 0.01 to 10 percent by weight, preferably 0.05 to 10 percent by weight, relative to the total quantity of the concentrate of one or several carboxylic acid amides and/or sulfonic acid amides. Ready-to-use aqueous coolant compositions containing 30 to 70 percent by weight, especially 40 to 60 percent by weight, of the concentrate can be obtained by diluting the inventive concentrates with water. Said coolant compositions are characterized by effective corrosion inhibition of magnesium and magnesium alloys.