MATIERES DE REVETEMENT A BASE DE COPOLYMERES ACRYLIQUES, DE COMPOSES EPOXY ET DE COMPOSES POLYOLEFINIQUES CHLORES POUR DES ARTICLES EN RESINES POLYOLEFINIQUES

• Main Author: YUKITAKA HISANAGA, KUNIO KOBIYAMA, SHIGERU NOGUCHI ET KENJIRO ARAI
• Format: Patent
• Language: French
• Published: 29.10.1982
• Subjects: ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CORRECTING FLUIDS; DYES; FILLING PASTES; GENERAL PROCESSES OF COMPOUNDING; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING-UP

DES MATIERES DE REVETEMENT POUR DES ARTICLES EN RESINES POLYOLEFINIQUES COMPRENNENT UN COPOLYMERE ACRYLIQUE AYANT UN MONOMERE ACRYLIQUE CONTENANT DE L'AZOTE BASIQUE ET D'AUTRES MONOMERES QUI SONT COPOLYMERISABLES AVEC LE MONOMERE ACRYLIQUE, UN COMPOSE EPOXY AYANT PLUS DE DEUX RADICAUX EPOXY COMPRIS DANS UNE MOLECULE, ET, EN OUTRE, UN COMPOSE CHLORE D'HOMOPOLYMERE ETOU DE COPOLYMERE DE POLYPROPYLENE ETOU DE POLYETHYLENE. A coating composition suitable for painting onto a polyethylene or polypropylene article comprises by weight:- (a) 100 parts of an acrylic copolymer containing 0.3 to 30 wt.% of an acrylic monomer containing basic nitrogen, e.g. in an amino ester of (meth)acrylic acid, and 99.8 to 30 wt.% of another monomer, (b) 0.5 to 30 parts of an epoxy compound having three or more epoxy radicals, which bridge reacts with copolymer (a), and (c) 1 to 100 parts of a chlorinated polyethylene or polypropylene, of 20 to 40 molar % chlorination. An organic solvent is also included. The composition can be prepared in two solutions containing respectively (i) the component (a) and preferably a pigment, and (ii) components (b) and (c). The composition adheres well. It can be overpainted if desired.