COMPOSITE POLYESTER ARTICLE

• Main Authors: ORANGE, GILLES, TOURAUD, FRANCK, JEOL, STEPHANE
• Format: Patent
• Language: English; French
• Published: 16.06.2011
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; MAKING GRANULES OR PREFORMS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

The present invention relates to a method for manufacturing a composite article including a step of impregnating a reinforcing fabric with a semi-aromatic polyester composition in the molten state, having a melt viscosity ? of between 20 to 200 Pa.s, said reinforcing fabric being maintained at a temperature of plus or minus 50°C relative to the melting temperature of said polyester. La présente invention concerne un procédé de fabrication d'un article composite comprenant une étape d'imprégnation d'une étoffe de renfort avec une composition polyester semi-aromatique à l'état fondu, présentant une viscosité fondue ? comprise de 20 à 200 Pa.s, ladite étoffe de renfort étant maintenue à une température de plus ou moins 50°C par rapport à la température de fusion dudit polyester.