122.
    发明专利
    未知

    公开(公告)号:AT468378T

    公开(公告)日:2010-06-15

    申请号:AT06777283

    申请日:2006-06-08

    Applicant: BASF SE

    Abstract: Use of a mixture comprising a surfactant and a cosurfactant in the form of an aqueous solution for flooding underground deposits of hydrocarbons for mobilizing and recovering the hydrocarbons from the underground deposits, the cosurfactant being a substance or a group of substances selected from the following list: an amphiphilic comb polymer having a backbone with two or more side chains attached to the backbone, the side chains differing from one another and/or the side chains differing from the backbone in their amphiphilic character, an amphiphilic polymer having one or more hydrophobic subunits [A2] based on a polyisobutene block, at least 50 mol % of whose polyisobutene macromolecules have terminally arranged double bonds, and one or more hydrophilic subunits [B2], or an amphiphilic polymer having the general structural formula

    125.
    发明专利
    未知

    公开(公告)号:NO20091986L

    公开(公告)日:2009-06-22

    申请号:NO20091986

    申请日:2009-05-22

    Applicant: BASF SE

    Abstract: Thickener systems which are suitable for preparing thickener compositions, and which systems consists of (A) at least one anionic surfactant A and (B) at least one polymer B comprising at least one hydrophobic group and preferably at least one hydrophilic group, wherein the concentration of the polymer B in a thickener composition is below the overlap concentration c* of the polymer, along with processes for preparing such compositions and uses thereof.

    127.
    发明专利
    未知

    公开(公告)号:AT422533T

    公开(公告)日:2009-02-15

    申请号:AT04790785

    申请日:2004-10-23

    Applicant: BASF SE

    Abstract: Use of copolymers comprising alkylene oxide units and comprising, in randomly or blockwise copolymerized form, (a) 50 to 93 mol % of acrylic acid and/or a water-soluble salt of acrylic acid, (b) 5 to 30 mol % of methacrylic acid and/or a water-soluble salt of methacrylic acid and (c) 2 to 20 mol % of at least one nonionic monomer of the formula I in which the variables have the following meanings: R1 is hydrogen or methyl; R2 is a chemical bond or unbranched or branched C1-C6-alkylene; R3 is identical or different unbranched or branched C2-C4-alkylene radicals; R4 is unbranched or branched C1-C6-alkyl; n is 3 to 50, as deposit-inhibiting additives in the rinsing cycle of a dishwasher.

    PH-REGULATED THICKENER SYSTEM
    130.
    发明专利

    公开(公告)号:CA2669617A1

    公开(公告)日:2008-06-05

    申请号:CA2669617

    申请日:2007-11-29

    Applicant: BASF SE

    Abstract: The present invention relates to a composition with pH-dependant viscosit y, comprising (A) at least one surfactant of the general formula (I), (R1-[( O-(CH2)2)x1(O-CH(CH3)CH2)x2]O)kP(=O)(OH)3-k, wherein the sequence of the alk enoxy units is optional, R1 is selected from linear or branched C12-C22-alky l, C12-C22-alkenyl, C12-C22-alkinyl, (C11-C21-alkyl)carbonyl, (C11-C21-alken yl)carbonyl and (C11-C21-alkinyl)carbonyl, k is 1 or 2, and x1 and x2 indepe ndently from each other are an integer from 0 to 20, wherein the sum of x1 u nd x2is a number from 1 to 20, and (B) at least one thickener, comprising at least two hydrophobic groups R2, which are connected with each other via a bridging hydrophilic group (.alpha.). The invention further relates to the u se for the controlled adjustment of the rheological properties of aqueous co mpositions and to methods for the treatment of underground geological format ions.

Patent Agency Ranking