Water-dilutable binders, aqueous coating materials containing these binders, and processes for the priming or one-layer coating of plastics

US5817370A · kind A · utility

Assignee

• Basf Lacke & Farben Aktiengesellschaft · DE

Inventors

• Horst Hinzte-Bruning · Munster, DE
• Harald Borgholte · Munster, DE
• Hans-Josef Oslowski · Munster, DE
• Albin Berger · Bobenheim am Berg, DE
• Michael Muller · Zwingenberg, DE

Key dates

• Filing date: Dec 9, 1996
• Grant date: Oct 6, 1998
• Expiry date: Dec 9, 2016

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08J2451/00
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

Water dilutable binders, prepared by subjecting to free radical polymerization PA1 (A) from 20 to 90% by weight of a mixture of PA2 (a1) from 3 to 50% by weight of acrylic acid, methacrylic acid or a mixture of acrylic acid and methacrylic acid, and PA2 (a2) from 50 to 97% by weight of an ethylenically unsaturated monomer or a mixture of ethylenically unsaturated monomers, PA1 in the presence of PA1 (B) from 9.9 to 79.9% by weight of a halogen-free polyolefin free from maleic anhydride groups, or a mixture of halogen-free polyolefins free from maleic anhydride groups, and PA1 (C) from 0.1 to 10% by weight of a free radical initiator or a mixture of free radical initiators PA1 and, after neutralization of at least 20% of the carboxyl groups contained in the resulting polymerization product, dispersing the polymerization product in water, the sum of the percentages by weight of components (A), (B) and (C) and (a1) and (a2) in each case always being 100% by weight.