中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

415 records (took 0.022 seconds)

    71.
    发明专利
    未知

    公开(公告)号：NO904131D0

    公开(公告)日：1990-09-21

    申请号：NO904131

    申请日：1990-09-21

    Applicant: BASF AG

    Inventor： GREIF NORBERT ,  OPPENLAENDER KNUT

    IPC: C07C303/32 ,  C07C309/10 ,  C09K8/584 ,  C09K23/04 ,  E21B43/22 ,  C07C ,  C08G65/00 ,  E21B43/00

    Abstract: Preparation of low-temperature-stable alkanolic-aqueous solutions of polyethersulphonates of the general formula I R-(O-A)n-SO3M I in which R represents an alkyl or alkenyl group having 8 to 25 carbon atoms or an alkylphenyl group having 8 to 18 carbon atoms in the alkyl radical, A denotes a 1,2-alkylene group having 2 to 4 carbon atoms, n has a value of between 1 and 15 and M represents an alkali metal cation or an ammonium cation which can be substituted by C1-C4-alkyl groups or C1-C4-hydroxyalkyl groups, by reacting polyether halides of the general formula II R-(O-A)n-X II in which X represents chlorine or bromine, with an aqueous solution of an alkali metal sulphite or ammonium sulphite and diluting the reaction solution with a C4-C8-alkanol, by heating the reaction mixture after the reaction to 60 to 150 DEG C at 1 to 5 bar and separating the mainly aqueous phase which is formed in this process. The low-temperature-stable solutions of the polyethersulphonates I are used as surfactant solutions in tertiary oil drilling.

    73.
    发明专利
    未知

    公开(公告)号：DK383089A

    公开(公告)日：1990-02-06

    申请号：DK383089

    申请日：1989-08-04

    Applicant: BASF AG

    Inventor： RATH HANS PETER ,  MACH HELMUT ,  OPPENLAENDER KNUT ,  SCHOENLEBEN WILLIBALD ,  VOGEL HANS-HENNING

    IPC: C07C217/50 ,  C07C233/18 ,  C08G65/26 ,  C08G65/28 ,  C08G65/32 ,  C08G65/322 ,  C08G65/325 ,  C10L1/22 ,  C10L1/238 ,  C10L1/2383 ,  F02B1/04 ,  C07C217/06

    Abstract: Fuels for spark ignition engines, which fuels contain small amounts of a polyether amine and/or polyether amine derivative of the general formula … … in which R is a phenol- or alkylphenol-polyether radical of the general formula … … or a cyclohexyl- or alkylcyclohexyl-polyether radical of the general formula … … R and R may be identical or different and are hydrogen, the phenol- or alkylphenol-polyether radical (IIIa), the cyclohexyl- or alkylcyclohexyl-polyether radical (IIIb), the acyl radical of a carboxylic acid having 2 to 24 carbon atoms or the hydroxyalkyl radical of the general formula … … or R is an alkyl radical having 1 to 20 carbon atoms and R is hydrogen, the phenol- or alkylphenol-polyether radical (IIIa), the cyclohexyl- or alkylcyclohexyl-polyether radical (IIIb), the acyl radical of a carboxylic acid having 2 to 24 carbon atoms or the hydroxyalkyl radical (IV), R is the carboxylate radical of a carboxylic acid having 2 to 24 carbon atoms, R , R and R may be identical or different and are hydrogen or a hydrocarbon radical having 1 to 30 carbon atoms, R is a polyether chain comprising alkene oxides having 2 to 8 carbon atoms or mixtures of these alkene oxides having 2 to 100 alkene oxide units in the chain, and R is hydrogen or a hydrocarbon radical having 1 to 6 carbon atoms, and m is the numbers 0 to 5, the mean molecular weight Mn of the polyether amines or polyether amine derivatives (I) or (II) being 500 to 8000, and the polyether amines or the parent polyether amines to the polyether amine derivatives being prepared by amination of phenol- or alkylphenol-polyethers of the general formula … … or of cyclohexyl- or alkylcyclohexyl-polyethers of the general formula … … in which R , R , R and R are as defined above, using ammonia or primary amines. … The novel polyether amines and their derivatives have an improved valve-cleaning action.

    76.
    发明专利
    未知

    公开(公告)号：DK383089D0

    公开(公告)日：1989-08-04

    申请号：DK383089

    申请日：1989-08-04

    Applicant: BASF AG

    Inventor： RATH HANS PETER ,  MACH HELMUT ,  OPPENLAENDER KNUT ,  SCHOENLEBEN WILLIBALD ,  VOGEL HANS-HENNING

    IPC: C07C217/50 ,  C07C233/18 ,  C08G65/26 ,  C08G65/28 ,  C08G65/32 ,  C08G65/322 ,  C08G65/325 ,  C10L1/22 ,  C10L1/238 ,  C10L1/2383 ,  F02B1/04 ,  C07C93/14

    Abstract: Fuels for spark ignition engines, which fuels contain small amounts of a polyether amine and/or polyether amine derivative of the general formula … … in which R is a phenol- or alkylphenol-polyether radical of the general formula … … or a cyclohexyl- or alkylcyclohexyl-polyether radical of the general formula … … R and R may be identical or different and are hydrogen, the phenol- or alkylphenol-polyether radical (IIIa), the cyclohexyl- or alkylcyclohexyl-polyether radical (IIIb), the acyl radical of a carboxylic acid having 2 to 24 carbon atoms or the hydroxyalkyl radical of the general formula … … or R is an alkyl radical having 1 to 20 carbon atoms and R is hydrogen, the phenol- or alkylphenol-polyether radical (IIIa), the cyclohexyl- or alkylcyclohexyl-polyether radical (IIIb), the acyl radical of a carboxylic acid having 2 to 24 carbon atoms or the hydroxyalkyl radical (IV), R is the carboxylate radical of a carboxylic acid having 2 to 24 carbon atoms, R , R and R may be identical or different and are hydrogen or a hydrocarbon radical having 1 to 30 carbon atoms, R is a polyether chain comprising alkene oxides having 2 to 8 carbon atoms or mixtures of these alkene oxides having 2 to 100 alkene oxide units in the chain, and R is hydrogen or a hydrocarbon radical having 1 to 6 carbon atoms, and m is the numbers 0 to 5, the mean molecular weight Mn of the polyether amines or polyether amine derivatives (I) or (II) being 500 to 8000, and the polyether amines or the parent polyether amines to the polyether amine derivatives being prepared by amination of phenol- or alkylphenol-polyethers of the general formula … … or of cyclohexyl- or alkylcyclohexyl-polyethers of the general formula … … in which R , R , R and R are as defined above, using ammonia or primary amines. … The novel polyether amines and their derivatives have an improved valve-cleaning action.

Patent Agency Ranking