Thermoplastic composition of acrylic copolymers and crosslinking agents and process for its preparation

US4465813A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Richard Sattelmeyer · Wiesbaden, DE
• Heinz Schmelzer
• Richard Gutte · Frankfurt, DE

Key dates

• Filing date: May 27, 1983
• Grant date: Aug 14, 1984
• Expiry date: May 27, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2666/34
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Thermoplastic composition having high cohesion and a reduced tendency to flow, based on a copolymer of ethylenically unsaturated monomers obtained by conventional methods in the presence of polymerization initiators and a chelating agent based on PA0 (A) a copolymer consisting of an alkyl ester of an .alpha., .beta.-ethylenically unsaturated mono- and/or dicarboxylic acid with 1 to 12 carbon atoms in the alcohol group, an amide of such an acid, unsubstituted at the nitrogen atom, one of these acids themselves and optionally another copolymerizable monomeric compound, PA0 (B) a metal-containing cross-linking agent, the metal atom being an element of the second, third or fourth group of the Periodic Table, and optionally PA0 (C) other additives acting as extenders and other conventional additives, and the preparation thereof by treating the copolymer (A) together with the cross-linking component (B) and possibly the other additives (C) in a mixing apparatus at 100.degree. to 150.degree. C., during which cross-linking of the copolymer occurs. The thermoplastic compositions may be used as thermoplastic and hot-melt adhesives, laminating adhesives, sealable coatings, adhesive or barrier…