94.
    发明专利
    未知

    公开(公告)号:DE10304959A1

    公开(公告)日:2004-08-19

    申请号:DE10304959

    申请日:2003-02-06

    Applicant: BASF AG

    Abstract: In a process for the production of leather, pelts, pickled pelts or semifinished products are treated with at least one polymer which is obtainable by copolymerization of at least one ethylenically unsaturated dicarboxylic anhydride (A), derived from at least one dicarboxylic acid of 4 to 8 carbon atoms, at least one vinylaromatic compound (B) and optionally at least one ethylenically unsaturated monomer (C) which differs from (A) and has a hetero atom, reaction with at least one compound (D) of the formula Ia or Ib at least 0.55 equivalent, based on (A), of (D) being used, and optionally hydrolysis with water or aqueous alkaline solution, where, in formulae Ia and Ib, the variables are defined as follows: A 1 are identical or different and are C 2 -C 6 -alkylene R 1 is linear or branched C 1 -C 20 -alkyl, and n is an integer from 6 to 200.

    97.
    发明专利
    未知

    公开(公告)号:DE10243576A1

    公开(公告)日:2004-04-01

    申请号:DE10243576

    申请日:2002-09-19

    Applicant: BASF AG

    Abstract: A process for the preparation of polyisobutene containing at least 75 mol % of terminal vinylidene groups, in which isobutene or an isobutene-containing hydrocarbon mixture is polymerized in the liquid phase in the presence of a boron trifluoride complex catalyst having the composition a(BF3):b(Co1):c(Co2) where Co1 is at least one tertiary alcohol, Co2 is at least one compound selected from water, primary alcohols, secondary alcohols, dialkyl ethers, alkanecarboxylic acids and phenols, the ratio c:b is from 0.9 to 1.8 and the ratio (b+c):a is from 0.9 to 3.0, is described.

    EMULSIFIERS, ESPECIALLY BASED ON POLYISOBUTYLENAMINES

    公开(公告)号:CA2439308A1

    公开(公告)日:2002-09-12

    申请号:CA2439308

    申请日:2002-02-28

    Applicant: BASF AG

    Abstract: The invention relates to compounds, especially compounds based on polyisobutylenamines, which are suitable for emulsifiers for water-in-oil emulsions. The invention also relates to a method for the production of said compounds and to the use thereof, mainly as additives for fuels and lubricants. The compounds according to the invention are compounds of genera l formula (I), wherein R1 represents a C1-C8-alkylene or a C2-C8-alkenylene optionally substituted with C1 -C12-alkyl; R2 represents a linear or branche d C8-C350-alkyl or a C8-C350-alkenyl; R3 and R4 independently represent H, methyl or ethyl and together do not have more than 2 C atoms; R5 represents H, M+, SO3H, SO3- M+, PO3H, PO3-M+ and C(O)R7, wherein M+ represents NH4+, an alkaline metal ion or 0.5 earth alkaline metal ions; R7 represents one linea r C2- to C1O- hydrocarbon radical substituted with at least one hydrophilic group, and y and z independently represent whole numbers from 0 to 50, where in R5 = H if y = 0 and R6 = H if z = 0.

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