Method and apparatus for needling a glassfibre mat and composite article made from this mat

The present invention relates to the needling of continuous glass fibre mats. The invention consists in subjecting the mat to the action, preferably simultaneous, of needles of different diameters. Perforations of different sizes, preferably uniformly distributed, are thus produced in the mat. This...

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Bibliographische Detailangaben
1. Verfasser:	BOLLIAND, ROBERT
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BRAIDING CHEMISTRY COMPOSITIONS BASED THEREON COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS GENERAL PROCESSES OF COMPOUNDING KNITTING LACE-MAKING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL METALLURGY NON-WOVEN FABRICS ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TRIMMINGS WADDING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention relates to the needling of continuous glass fibre mats. The invention consists in subjecting the mat to the action, preferably simultaneous, of needles of different diameters. Perforations of different sizes, preferably uniformly distributed, are thus produced in the mat. This mat is intended to be employed as a reinforcement in composite materials based on thermoplastic resins, especially in laminates.