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11.发明专利
公开(公告)号：CA1216860A
公开(公告)日：1987-01-20
申请号：CA447645
申请日：1984-02-16
Applicant: HOECHST AG
Inventor： WESTER NORBERT , UHL KLAUS , GULDEN WALTER , SCHNEIDER GERHART
IPC: E21B43/22 , C07C309/09 , C08G65/00 , C08G65/32 , C08G65/326 , C09K8/584 , C07C143/38
Abstract: of the disclosure Sulfonated tributylphenol ethoxylates of the formula where x denotes a number from 2 to 20, and M denotes a cation, their use as surfactants, in particular as auxiliaries in the tertiary production of crude oil, and an improved, general process for preparing sulfonated alkyl and (alkyl) aryl polyalkoxylates by reacting halides of alkyl and (alkyl) aryl polyethoxylates with alkali metal sulfite by carrying out the reaction in the presence of lower alcohols, polyols, monoethylene glycol, polyethylene glycol or alkyl ethers thereof, as solubilizing agents.
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公开(公告)号：FI55049B
公开(公告)日：1979-01-31
申请号：FI177673
申请日：1973-05-31
Applicant: HOECHST AG , BENCKISER GMBH JOH A
Inventor： HENNING KLAUS , MERKENICH KARL , KANDLER JOACHIM , SCHNEIDER GERHART
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公开(公告)号：AU6428074A
公开(公告)日：1975-07-10
申请号：AU6428074
申请日：1974-01-08
Applicant: HOECHST AG
Inventor： BUCKING HANS WALTER , SAHM WILFRIED , SCHNEIDER GERHART , HESS PETER , KONIG FRANZ
Abstract: Peracylated aliphatic polyamines are useful as activators for inorganic peroxo compounds, i.e., they set free the available oxygen of the peroxo compounds in aqueous solutions at temperatures below 80 DEG C and are thus useful as additives to detergents especially inasmuch as they are compatible with usual detergent brighteners.
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公开(公告)号：NO900642A
公开(公告)日：1990-08-13
申请号：NO900642
申请日：1990-02-09
Applicant: HOECHST AG
Inventor： BATHELT HEINRICH , FISCHER REINHARD , SCHNEIDER GERHART
CPC classification number: C09K8/584
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公开(公告)号：NO900642D0
公开(公告)日：1990-02-09
申请号：NO900642
申请日：1990-02-09
Applicant: HOECHST AG
Inventor： BATHELT HEINRICH , FISCHER REINHARD , SCHNEIDER GERHART
Abstract: In the process described, the oil/gas-containing subterranean formations are contacted with a selected fluoro-surfactant as a stimulant. A particularly preferred stimulant consists essentially of the said fluoro-surfactants and of non-fluorinated, nonionic surfactants from the group of the alkoxypolyethylene glycol ethers and from the group of the alkylphenoxypolyethylene glycol ethers, the three components being present in a weight ratio of preferably about 1:1:1.
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Patent Agency Ranking
公开(公告)号：BR8705716A
公开(公告)日：1988-05-31
申请号：BR8705716
申请日：1987-10-27
Applicant: HOECHST AG
Inventor： SCHMIDT MANFRED , RUPP WALTER , SCHNEIDER GERHART , KOHN EVA M
IPC: C07C309/04 , C07C309/09 , C09K8/584 , E21B43/22 , C07C143/34
Abstract: Styrylaryloxy ether sulfonates of the formula in which either R1 denotes styryl and simultaneously R2 and R3 are identical or different and denote hydrogen or styryl, or R1 and R2 are nonidentical and each denote methyl or styryl and simultaneously R3 denotes hydrogen or styryl, x denotes a number from 2 to 20, and M denotes an ammonium or alkali metal cation. These compounds are suitable as surfactant auxiliaries in oil recovery.
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公开(公告)号：NO874616L
公开(公告)日：1988-05-09
申请号：NO874616
申请日：1987-11-05
Applicant: HOECHST AG
Inventor： KEIL KARL-HEINZ , SCHNEIDER GERHART , TROST ALOYS
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公开(公告)号：NO874616A
公开(公告)日：1988-05-09
申请号：NO874616
申请日：1987-11-05
Applicant: HOECHST AG
Inventor： KEIL KARL-HEINZ , SCHNEIDER GERHART , TROST ALOYS
CPC classification number: C09K8/584
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公开(公告)号：NO840580L
公开(公告)日：1984-08-20
申请号：NO840580
申请日：1984-02-16
Applicant: HOECHST AG
Inventor： WESTER NORBERT , UHL KLAUS , GULDEN WALTER , SCHNEIDER GERHART
IPC: E21B43/22 , C07C309/09 , C08G65/00 , C08G65/32 , C08G65/326 , C09K8/584 , C07C
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公开(公告)号：FI55049C
公开(公告)日：1979-05-10
申请号：FI177673
申请日：1973-05-31
Applicant: HOECHST AG , BENCKISER GMBH JOH A
Inventor： HENNING KLAUS , MERKENICH KARL , KANDLER JOACHIM , SCHNEIDER GERHART
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