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公开(公告)号：DE4006255A1
公开(公告)日：1991-08-29
申请号：DE4006255
申请日：1990-02-28
Applicant: BASF AG
Inventor： FIKENTSCHER ROLF DR , OPPENLAENDER KNUT DR , DIX JOHANNES PETER DR , SAGER WILFRIED DR , VOGEL HANS-HENNING DR , ELFERS GUENTHER
Abstract: The present invention relates to methods of demulsifying employing condensates as demulsifiers for oil-in-water emulsions and prepared from A) a precondensate from one or more trialkanolamines of the general formula I (I) in which R1 to R3 denote the same or different 1,2-alkylene groups of from 2 to 4 carbon atoms, and B) from 0.1 to 30% w/w, based on said precondensate, of one or more of the following compounds II: a) urea or a urea derivative of the general formula IIa (IIa) b) a urea derivative of the general formula IIb (IIb) c) a urethane of the general formula IIc (IIc) and/or d) a urethane of the general formula IId (IId) in which R1 is hydrogen, C1-C20-alkyl or C2-C20-alkenyl, R2 and R3 are the same or different and denote hydrogen or C1-C4-alkyl, R4 is C1-C4-alkyl and R5 is C1-C12-alkylene.
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公开(公告)号：NO910399A
公开(公告)日：1991-08-05
申请号：NO910399
申请日：1991-02-01
Applicant: BASF AG
Inventor： FIKENTSCHER ROLF , OPPENLAENDER KNUT , DIX JOHANNES PETER , SAGER WILFRIED , VOGEL HANS-HENNING , BARTHOLD KLAUS , ELFERS GUENTHER
CPC classification number: C08G65/34 , B01D17/047 , C08L71/02
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公开(公告)号：NO910795D0
公开(公告)日：1991-02-27
申请号：NO910795
申请日：1991-02-27
Applicant: BASF AG
Inventor： FIKENTSCHER ROLF , OPPENLAENDER KNUT , DIX JOHANNES PETER , SAGER WILFRIED , VOGEL HANS-HENNING , ELFERS GUENTHER
Abstract: The present invention relates to methods of demulsifying employing condensates as demulsifiers for oil-in-water emulsions and prepared from A) a precondensate from one or more trialkanolamines of the general formula I (I) in which R1 to R3 denote the same or different 1,2-alkylene groups of from 2 to 4 carbon atoms, and B) from 0.1 to 30% w/w, based on said precondensate, of one or more of the following compounds II: a) urea or a urea derivative of the general formula IIa (IIa) b) a urea derivative of the general formula IIb (IIb) c) a urethane of the general formula IIc (IIc) and/or d) a urethane of the general formula IId (IId) in which R1 is hydrogen, C1-C20-alkyl or C2-C20-alkenyl, R2 and R3 are the same or different and denote hydrogen or C1-C4-alkyl, R4 is C1-C4-alkyl and R5 is C1-C12-alkylene.
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Patent Agency Ranking
公开(公告)号：DE3668183D1
公开(公告)日：1990-02-15
申请号：DE3668183
申请日：1986-10-16
Applicant: BASF AG
Inventor： ZARATE JACOBO DR , ELFERS GUENTHER , BETZ RAINER DR , RAUBENHEIMER HANS-JUERGEN , ZIEGLER WALTER DR
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公开(公告)号：NO864235D0
公开(公告)日：1986-10-23
申请号：NO864235
申请日：1986-10-23
Applicant: BASF AG
Inventor： ZARATE JACOBO , ELFERS GUENTHER , BETZ RAINER , RAUBENHEIMER HANS-JUERGEN , ZIEGLER WALTER
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公开(公告)号：DE3265256D1
公开(公告)日：1985-09-12
申请号：DE3265256
申请日：1982-10-07
Applicant: BASF AG
Inventor： DISTLER HARRY DR , WIDDER RUDI DR , BARTHOLD KLAUS DR , ELFERS GUENTHER
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公开(公告)号：DE3141922A1
公开(公告)日：1983-05-05
申请号：DE3141922
申请日：1981-10-22
Applicant: BASF AG
Inventor： DISTLER HARRY DIPL CHEM DR , WIDDER RUDI DIPL CHEM DR , BARTHOLD KLAUS DIPL CHEM DR , ELFERS GUENTHER
Abstract: Use of compounds of the formula in which R represents a C8- to C20-alkyl radical and R and R represent identical or different radicals and denote hydrogen or C1-C4-alkyl radicals, as bactericides against sulphate-reducing bacteria in process waters in the petroleum industry.
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公开(公告)号：NO823504A
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
CPC classification number: C09K8/605
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