公开(公告)号：BRPI0406655A

公开(公告)日：2005-12-06

申请号：BRPI0406655

申请日：2004-01-28

Applicant: BASF AG

Inventor： LUNKWITZ RALPH ,  DANISCH PETER ,  RODLER THORSTEN ,  JANSON WERNER ,  SATTLER FRIEDRICH

IPC: C14C9/02

Abstract: Water repellency is imparted to leather and fur skins by a process in which leather or fur skin is treated, before, during or after the retanning, with one or more formulations comprising from 1 to 30% by weight, based on the formulation, of a mixture of polysiloxanes comprising from 10 to 90% by weight, based on the mixture, of one or more carboxyl-containing polysiloxanes, from 90 to 10% by weight, based on the mixture, of one or more carboxyl-free polysiloxanes and from 3 to 25% by weight, based on the formulation, of at least one emulsifier.

公开(公告)号：DE10332991A1

公开(公告)日：2005-02-03

申请号：DE10332991

申请日：2003-07-18

Applicant: BASF AG

Inventor： LUNKWITZ RALPH ,  SATTLER FRIEDRICH ,  DANISCH PETER ,  RAEDLER THORSTEN

IPC: C14C9/02 ,  C08L83/04 ,  B01F17/08 ,  C08K5/36

Abstract: Method for rendering leather and pelts hydrophobic by treatment, before, during or after, retanning, with one or more formulations (X) that contain 1-30wt.% of a mixture (A) of polysiloxanes containing 10-90wt.% each of carboxy-containing polysiloxane (A1) and carboxy-free polysiloxane (A2), also 3-25wt.% emulsifier (A3). Independent claims are also included for the following: (1) leather and pelts treated by the new method; and (2) formulations that contain 1-20wt.% of mixture (A).