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    METODO PARA REMOVER SUSTANCIAS CORNEAS DE CUEROS, PIELES PELADAS O PIELES.
    1.
    发明专利
    METODO PARA REMOVER SUSTANCIAS CORNEAS DE CUEROS, PIELES PELADAS O PIELES. 未知

    公开(公告)号：ES2329463T3

    公开(公告)日：2009-11-26

    申请号：ES03752667

    申请日：2003-05-19

    Applicant: BASF SE

    Inventor： TAEGER TILMAN LUDECKE ,  PABST GUNTHER ,  LAMALLE PHILIPPE ,  HUFFER STEPHAN ,  SCHROEDER STEFAN

    IPC: C14C1/06

    Abstract: Método para la eliminación de sustancias córneas de y por lo menos amplio retiro de la epidermis de pieles, pieles peladas o cueros de animales muertos caracterizada porque se tratan las pieles, pieles peladas o cueros en licor acuoso con uno o varios compuestos de la fórmula general I **(Ver fórmula)** o las correspondientes sales de metales alcalinos o alcalinotérreos o sales de amonio o fosfonio, donde las variables se definen como sigue: R 1 es elegido de entre hidrógeno o alquilo C1-C12, no sustituido o sustituido con uno con varios grupos S-H o O-H; X 1 a X 4 son iguales o diferentes y son elegidos de entre hidrógeno, alquilo C1-C4, O-H, S-H o N-HR 2 , R 2 significa hidrógeno o alquilo C 1-C 12 o un grupo C 1-C 4-alquilo-C=O, donde, en el caso que R 1 contenga por lo menos un átomo de azufre, por lo menos un radical X 1 a X 4 significa S- H, y en el caso que R 1 no contenga ningún átomo de azufre, por lo menos dos radicales X 1 a X 4 significan S-H.

    2.
    发明专利
    未知

    公开(公告)号：DE50311346D1

    公开(公告)日：2009-05-07

    申请号：DE50311346

    申请日：2003-08-08

    Applicant: BASF SE

    Inventor： HUEFFER STEPHAN ,  SCHROEDER STEFAN ,  WAGNER EINHARD ,  RAEDLER THORSTEN ,  VILL KARL

    IPC: C14C3/16 ,  C14C3/28

    Abstract: Use is claimed as a tanning agent (or an intermediate for a tanning agent) of a clay mineral which, after 30 minutes intensive stirring in water at 50degreesC, gives a laser and light scattering-determined ISO 13320-1 number average particle diameter (D) below 2 mu or a bimodal distribution of (i) 10-90 wt.% of a fraction with D below 0.5 mu and (ii) a coarser fraction of D below 5 mu. An Independent claim is also included for a formulation for use in chromium-free or chrome tanning comprising (a) a clay mineral as above and (b) one or more of an organic polymer, an aldehyde-, sulfone- , resin-, phenol- or vegetable-tanning agent, dubbing material, dye or pigment.

    3.
    发明专利
    未知

    公开(公告)号：DE502006006803D1

    公开(公告)日：2010-06-02

    申请号：DE502006006803

    申请日：2006-07-06

    Applicant: BASF SE

    Inventor： HUEFFER STEPHAN ,  SCHROEDER STEFAN ,  LAMALLE PHILIPPE ,  BACH VOLKER

    IPC: C14C3/16

    Abstract: Process for the production of leather, wherein, after liming, deliming and, if appropriate, pickling, animal hides are pretanned or tanned with a mixture of compounds comprising (a) at least one organic tanning agent and (b) a mixture of (b1) at least one C3-C12-dicarboxylic acid (b2) and at least one further acidic compound selected from C1-C3-mono- or C3-C12-dicarboxylic acids, or salts thereof.

    5.
    发明专利
    未知

    公开(公告)号：AT438742T

    公开(公告)日：2009-08-15

    申请号：AT03752667

    申请日：2003-05-19

    Applicant: BASF SE

    Inventor： TAEGER TILMAN ,  PABST GUNTHER ,  LAMALLE PHILIPPE ,  HUEFFER STEPHAN ,  SCHROEDER STEFAN

    IPC: C14C1/06

    Abstract: Horny substances are removed from hides, pelts or skins of dead animals by treating the hides, pelts or skins in aqueous liquor with one or more compounds of the formula I or their corresponding alkali metal or alkaline earth metal salts or ammonium or phosphonium salts, the variables being defined as follows: R 1 is selected from hydrogen and C 1 -C 12 -alkyl, unsubstituted or substituted by one or more S-H or O-H groups; X 1 to X 4 are identical or different and are selected from hydrogen, C 1 -C 4 -alkyl, O-H, S-H and N-HR 2 , R 2 is hydrogen or C 1 -C 12 -alkyl or a C 1 -C 4 -Alkyl-C-O group, at least one radical X 1 to X 4 being S-H when R 1 contains at least one sulfur atom and at least two radicals X 1 to X 4 being S-H when R 1 contains no sulfur atom.

    7.
    发明专利
    未知

    公开(公告)号：AT465277T

    公开(公告)日：2010-05-15

    申请号：AT06777608

    申请日：2006-07-06

    Applicant: BASF SE

    Inventor： HUEFFER STEPHAN ,  SCHROEDER STEFAN ,  LAMALLE PHILIPPE ,  BACH VOLKER

    IPC: C14C3/16

    Abstract: Process for the production of leather, wherein, after liming, deliming and, if appropriate, pickling, animal hides are pretanned or tanned with a mixture of compounds comprising (a) at least one organic tanning agent and (b) a mixture of (b1) at least one C3-C12-dicarboxylic acid (b2) and at least one further acidic compound selected from C1-C3-mono- or C3-C12-dicarboxylic acids, or salts thereof.

    8.
    发明专利
    未知

    公开(公告)号：DE50311784D1

    公开(公告)日：2009-09-17

    申请号：DE50311784

    申请日：2003-05-19

    Applicant: BASF SE

    Inventor： TAEGER TILMAN LUEDECKE ,  PABST GUNTHER ,  LAMALLE PHILIPPE ,  HUEFFER STEPHAN ,  SCHROEDER STEFAN

    IPC: C14C1/06

    Abstract: Horny substances are removed from hides, pelts or skins of dead animals by treating the hides, pelts or skins in aqueous liquor with one or more compounds of the formula I or their corresponding alkali metal or alkaline earth metal salts or ammonium or phosphonium salts, the variables being defined as follows: R 1 is selected from hydrogen and C 1 -C 12 -alkyl, unsubstituted or substituted by one or more S-H or O-H groups; X 1 to X 4 are identical or different and are selected from hydrogen, C 1 -C 4 -alkyl, O-H, S-H and N-HR 2 , R 2 is hydrogen or C 1 -C 12 -alkyl or a C 1 -C 4 -Alkyl-C-O group, at least one radical X 1 to X 4 being S-H when R 1 contains at least one sulfur atom and at least two radicals X 1 to X 4 being S-H when R 1 contains no sulfur atom.

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