PROCESS FOR MOULDING A COMPOSITE PRODUCT FOR COATINGS

• Main Authors: GASTALDI Sergio Battista, FUMAGALLI Andrea
• Format: Patent
• Language: English; Spanish
• Published: 22.05.2023
• 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

Process for moulding a composite product (9) for coatings, comprising providing an aesthetic layer (1) comprising an aesthetic material chosen from: natural leather, a first composite material comprising a textile layer and a coating layer comprising polyurethane or polyvinyl chloride or thermoplastics olefins and a second composite material comprising a non-woven fabric comprising polyester or polyamide fibres immersed in a polyurethane matrix, with the polyurethane in weight percentage greater than or equal to 15% and less than or equal to 60% and the polyester or the polyamide in weight percentage greater than or equal to 40% and less than or equal to 85%, providing a support layer (2) comprising a solid polyolefin thermoplastic foam, providing a semi- finished product (3) comprising the aesthetic layer (1) and the support layer (2) coupled together, heating the semi-finished product (3) to bring the support layer (2) to a plastic state, forming the semi-finished product (3) by pressing against each other a first (11 ) and a second half-mould (12) of a mould (10) with the semi-finished product (3) interposed between the conformation surfaces (13) of the two half-moulds, and with the support layer (2) in the plastic state, cooling the semi-finished product (3) to bring the support layer (2) to a solid state and to realize the composite product (9). Proceso para moldear un producto compuesto (9) para revestimientos, que comprende proporcionar una capa estética (1) que comprende un material estético elegido de: piel natural, un primer material compuesto que comprende una capa textil y una capa de revestimiento que comprende poliuretano o cloruro de polivinilo u olefinas termoplásticas y un segundo material compuesto que comprende una tela no tejida que comprende fibras de poliéster o poliamida sumergidas en una matriz de poliuretano, con el poliuretano en porcentaje en peso mayor que o igual a 15% y menor que o igual a 60% y el poliéster o la poliamida en porcentaje en peso mayor que o igual a 40% y menor que o igual a 85%, proporcionar una capa de soporte (2) que comprende una espuma termoplástica de poliolefina sólida, proporcionar un producto semiacabado (3) que comprende la capa estética (1) y la capa de soporte (2) acopladas juntas, calentar el producto semiacabado (3) para llevar la capa de soporte (2) a un estado plástico, formar el producto semiacabado (3) al presionar uno contra otro un primer (11) y un segundo medio molde (12) de un molde (10) con el producto semiacabado (3) interpuesto entre las superficies de conformación (13) de los dos medios moldes, y con la capa de soporte (2) en el estado plástico, enfriar el producto semiacabado (3) para llevar la capa de soporte (2) a un estado sólido y para realizar el producto compuesto (9).