Leather-treatment agents, process for their preparation, and their use for producing low-fogging leathers

US6048467A · kind A · utility

Assignee

• Stockhausen GmbH & Co. KG · DE

Inventors

• Kurt Dahmen · Rheydt, DE
• Thomas Muller · Bad Homburg vor der Höhe, DE
• Reinmar Peppmoller · Krefeld, DE
• Norbert Behlau · Neheim, DE

Key dates

• Filing date: Mar 9, 1999
• Grant date: Apr 11, 2000
• Expiry date: Mar 9, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C14C9/02
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

New leather dressing agents, which may be obtained by polymerization of PA1 a1) 70-100 wt. % acrylic acid and/or methacrylic acid and/or acid chlorides and/or anhydrides thereof with PA1 a2) 0-30 wt. % of other water-soluble monomers copolymerizable with a1), and PA1 a3) 0-20 wt. % of water-insoluble monomers copolymerizable with a1) and a2), reaction of the polymer with fatty amines, and neutralization and dispersion of the thus modified polymer, with amines not bound to the polymer optionally being reacted with (meth)acrylic acid to give N-substituted .beta.-aminopropionic acids, production of said leather dressing agents and their use in the manufacture of low-fogging leathers.