公开(公告)号：AT438743T

公开(公告)日：2009-08-15

申请号：AT03749808

申请日：2003-05-02

Applicant: BASF SE

Inventor： HUEFFER STEPHAN ,  PABST GUNTHER ,  TAEGER TILMAN ,  SCHROEDER STEFAN ,  WOLF GERHARD

IPC: C14C3/16 ,  C07C45/72

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.

公开(公告)号：AT399764T

公开(公告)日：2008-07-15

申请号：AT04765052

申请日：2004-09-10

Applicant: BASF SE

Inventor： BUEHLER HOLGER ,  TELES JOAQUIM ,  PABST GUNTHER ,  TAEGER TILMAN

IPC: C07C323/19 ,  C07C321/04 ,  C07C323/12 ,  C07D301/12 ,  C07D303/12 ,  C07D303/34 ,  C07D407/04 ,  C14C1/06