METHODS FOR PRODUCING COMPOSITE ELEMENTS BASED ON FOAMS BASED ON ISOCYANATE

• Main Authors: lars SCHÖN, Rainer HENSIEK, Maria THOMAS, Peter HUNTEMANN, Roland FABISIAK, Bernd SCHAPER, Ruediger VIERECK
• Format: Patent
• Language: English; Spanish
• Published: 30.11.2016
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The object of the invention is a method for producing composite bodies, which comprise at least one cover layer b) and a hard foam based on isocyanate a), wherein said cover layer b) is moved continuously and the starting material for said hard foam based on isocyanate a) is applied to said cover layer b), characterized in that the application of the liquid starting material for the hard foam based on isocyanate a) is performed using at least one fixed tube c), which is attached parallel to the cover layer plane and perpendicular to the movement direction to the cover layer b) and is provided with openings f). La presente invención se refiere a un proceso para la producción de compuestos, que comprende por lo menos una capa exterior y una espuma rígida a base de isocianato, donde la capa exterior se mueve de manera continua y un material inicial líquido para la espuma rígida a base de isocianato se aplica a la capa exterior, que comprende lograr una aplicación del material inicial líquido para la espuma rígida a base de isocianato a través de por lo menos dos tubos fijos, cada uno de los cuales tiene aberturas, y que se han colocado, con respecto a la capa exterior, con el fin de ser paralelos al plano de la capa exterior, en donde la relación de las longitudes de las aberturas entre el sitio de la alimentación del material inicial para la espuma rígida a base de isocianato y el extremo de cada tubo es de 1.1 a 20.