Paints and renders containing aqueous dispersions of vinylidene chloride/(meth)acrylate copolymers as binders

US4663384A · kind A · utility

Assignee

• BASF SE

Inventors

• Erich Penzel · Heidelberg, DE
• Walter Prange · Monsheim, DE
• Michael Melan · Monsheim, DE
• Eckehardt Wistuba · Bad Dürkheim, DE
• Alfred Mueller · Nuremberg, DE

Key dates

• Filing date: Nov 1, 1985
• Grant date: May 5, 1987
• Expiry date: Nov 1, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L33/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Paints and renders contain, as binders, aqueous dispersions of copolymers which have a minimum film-forming temperature of from -15.degree. to 20.degree. C. and consist of PA0 (a) from 10 to 50% by weight of vinylidene chloride, up to half of which may be replaced with vinyl chloride, PA0 (b) from 44 to 88% by weight of esters of acrylic and/or methacrylic acid with alkanols of 1 to 18 carbon atoms and, if required, styrene, vinyl acetate, vinyl propionate or a mixture of these monomers and PA0 (c) from 2 to 6% by weight of .alpha.,.beta.-monoolefinically unsaturated mono- and/or dicarboxylic acids of 3 to 5 carbon atoms and/or their amides.