Protective colloid stabilized emulsion polymerization of ethylenically unsaturated monomers, and adhesive product thereof

US6538057B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Gerald Wildburg · Ludwigshafen, DE
• Dieter Urban · Speyer, DE
• Georg Langhauser · Ruppertsberg, DE
• Karl-Heinz Schumacher · Ludwigshafen, DE
• Oliver Hartz · Mannheim, DE
• Eckehardt Wistuba · Bad Dürkheim, DE

Key dates

• Filing date: May 21, 1998
• Grant date: Mar 25, 2003
• Expiry date: May 21, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09J157/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Adhesives comprising:a) from 5.0 to 95.0% by weight of an adhesive dispersion having a viscosity in the range from 2000 to 10,000 mpPa·s, which comprises (a1) an aqueous polymer dispersion which is obtainable by free-radical polymerization of a mixture M which comprises at least one ethylenically unsaturated monomer A to give a polymer P in the presence of at least one protective colloid-based on a water-soluble prepolymer which comprises at least one water-soluble monomer B, and further additives if desired, (a2) if desired, a base selected from the group consisting of alkali metal.hydroxides, ammonia and volatile organic amines, (a3) if desired, a completely water-miscible organic solvent, and, further additives; (b) from 0 to 90.0% by weight of a polysaccharide and/or a protein and/or a protein degradation product; (c) from 0 to 95.0% by weight of at least one filler; (d) from 0 to 10.0% by weight of at least one emulsifier; (e) from 0 to 30.0% by weight of further additives; (f) water to 100% by weight;processes for their preparation, and their use.