PROCESS FOR APPLYING A POLYURETHANE DISPERSION BASED FOAM TO AN ARTICLE

• Main Authors: WHITE, DOUGLAS, P, KENNEDY, JAMES, G, VAN BELLEGEM, PAULUS, C., J., M, AUTENRIETH, RANDAL, E, GRIBBLE, MICHAEL, Y
• Format: Patent
• Language: English; French
• Published: 24.06.2004
• Edition: 7
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR; LAUNDERING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TEXTILES; TRANSPORTING; TREATMENT OF TEXTILES OR THE LIKE; WALL, FLOOR OR LIKE COVERING MATERIALS, e.g. LINOLEUM,OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF AFIBROUS WEB COATED WITH A LAYER OF MACROMOLECULARMATERIAL; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Disclosed is a process for making a two or more component foam composite obtained by adhesion of a polyurethane foam onto a substrate comprising the steps of frothing an aqueous polyurethane formulation; applying the froth to a substrate and drying the froth into a foam wherein the foam has a dry density of 35 kg/m to 160 kg/m (2.2-10 Ibs/cft). The process allows the production of foam backed textiles without the need for a flame lamination step or the need for an adhesive layer between the textile and the foam layer and is optionally optimized for superior handling properties for covering polyurethane molded foam cushions. L'invention concerne un procédé de fabrication d'un matériau composite en mousse à deux ou plusieurs composants obtenu par adhérence d'une mousse de polyuréthane sur un substrat. Ledit procédé consiste à faire mousser une formulation aqueuse de polyuréthane, à appliquer la mousse sur un substrat, puis à la faire sécher de manière à obtenir une mousse avec une densité sèche de 35 kg/m à 160 kg/m (2,2-10 Ibs/cft). Ce procédé permet d'obtenir des textiles doublés de mousse sans nécessiter de doublage à la flamme ou de couche adhésive entre le textile et la couche de mousse, et il est éventuellement optimisé afin d'obtenir des propriétés de manipulation supérieures pour le recouvrement de coussins de mousse de polyuréthane moulée.