Aqueous adhesive dispersions

US8114931B2 · kind B2 · utility

Assignee

• Bayer MaterialScience AG · DE

Inventors

• Wolfgang Arndt · Dormagen, DE
• Rudiger Musch · Bensberg, DE
• Knut Panskus · Leverkusen, DE
• Thorsten Rische · Unna, DE
• Ralf Werner · Hilden, DE
• Wolfgang Henning · Zorneding, DE

Key dates

• Filing date: Sep 13, 2004
• Grant date: Feb 14, 2012
• Expiry date: Dec 7, 2026

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2170/80
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

An aqueous polymer dispersion that includes a) a polyurethane dispersion having an average particle size of 60 to 350 nm and b) an aqueous silicon dioxide dispersion having a particle diameter of the SiO2 particles of 20 to 400 nm. The dispersion is prepared by mixing the polyurethane dispersion (a) with the silicon dioxide dispersion (b). The aqueous polymer dispersion can be used in adhesive compositions, which can be used to bond substrates together, especially substrates that are structural components of shoes.