1.
    发明专利
    未知

    公开(公告)号:DE50301693D1

    公开(公告)日:2005-12-22

    申请号:DE50301693

    申请日:2003-05-21

    Applicant: BASF AG

    Abstract: The invention provides a process for preparing polyetherols of polyhydric alcohols by reacting an alkylene oxide with the appropriate polyhydric alcohol in the presence of a base and in the presence or absence of a solvent, wherein the polyhydric alcohol used has a formaldehyde acetal content of less than 500 ppm.

    6.
    发明专利
    未知

    公开(公告)号:BR0211297A

    公开(公告)日:2004-09-14

    申请号:BR0211297

    申请日:2002-07-01

    Applicant: BASF AG

    Abstract: The invention relates to a degreaser for treating hides, skins, pelts and other intermediates in leather and fur manufacture and also wool or related proteinaceous materials that is based on nonionic surfactants of the type of alcohol alkoxylates, comprising alcohol alkoxylates obtained by reaction of at least one alcohol ROH with n mol of at least one alkylene oxide per mole of alcohol ROH, where R is an alkyl radical of 5 to 30 carbon atoms which has a main chain, of 4 to 29 carbon atoms that has at least one C 1 - to C 10 -alkyl branch attached in the chain middle; the alkylene oxide has 2 to 6 carbon atoms, and n is an integer from 1 to 100. The invention further relates to a process for degreasing hide, skins, pelts and other intermediates of leather and fur manufacture and wool or related proteinaceous materials, which comprises using a degreaser according to the present invention, and to the use of the degreasers.

    7.
    发明专利
    未知

    公开(公告)号:DE10134441A1

    公开(公告)日:2003-02-06

    申请号:DE10134441

    申请日:2001-07-20

    Applicant: BASF AG

    Abstract: The invention relates to a degreasing agent for treating skins, fur, limed skins and other intermediate products in leather and fur production, and for treating wool or related protein substances, based on non-ionic surfactants of the alcohol alcoxylate type. Alcohol alcoxylates are used which are obtained by reaction with at least one alcohol ROH with n mols of at least one alkylene oxide per mol of alcohol ROH, wherein R represents an alkyl radical containing between 5 and 30 carbon atoms, and having a main chain which contains between 4 and 29 carbon atoms and is branched in the centre thereof with at least one C1 - C10 alkyl radical; the alkylene oxide comprises between 2 and 6 carbon atoms; and n represents a whole number between 1 and 100. The invention also relates to a method for degreasing skins, fur, limed skins and other intermediate products in leather and fur production, and for treating wool or related protein substances, a degreasing agent according to the present invention being used. The invention further relates to the use of said degreasing agent.

    9.
    发明专利
    未知

    公开(公告)号:DE50101329D1

    公开(公告)日:2004-02-19

    申请号:DE50101329

    申请日:2001-03-10

    Applicant: BASF AG

    Abstract: Perylene derivatives of the general formula I where X and Y are independently oxygen, -NR 1 or -NR 2 ; R 1 and R 2 are independently hydrogen, C 1 -C 18 -alkyl, C 5 -C 7 -cycloalkyl, aryl or C 1 -C 6 -alkoxy; R 3 to R 10 are independently hydrogen, hydroxyl or aryl, although radicals conjointly attached to one carbon atom may also be -O or -CHR 11 , R 11 is hydrogen or C 1 -C 3 -alkyl, with the proviso that said perylene derivative I contains from at least one to not more than three carbonyl groups per molecule.

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