Duroplastic-bonded molded fiber parts and method for...

D - Textiles – Paper – 04 – H

Patent

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D04H 1/60 (2006.01)

Patent

CA 2584298

The invention relates to duroplastic-bonded molded fiber parts produced from fiber material which is based on natural and/or synthetic fibers and bonded by means of a duroplastic binder. The aim of the invention is to provide duroplastic-bonded molded fiber parts that have the good mechanical, sound- absorbing and fire safety properties of the phenolic resin-bonded molded fiber parts without substantially having the odor caused by the phenolic resins. For this purpose, at least one adsorbent is embedded on the surface and/or the interior of the molded fiber part during the precuring and/or final curing of the duroplastic binder.

La présente invention concerne des pièces fibreuses moulées à liaison duroplastique réalisées à partir d'une matière fibreuse à base de fibres naturelles et/ou de fibres synthétiques, qui est liée par un liant duroplastique. Pour permettre la réalisation de pièces fibreuses moulées à liaison duroplastique qui d'une part conservent les bonnes propriétés mécaniques, propriétés d'absorption sonore et d'ignifugation, des pièces fibreuses moulées à liaison par résine phénolique, et qui d'autre part sont débarrassées au maximum de toute formation d'odeur liée à la résine phénolique, au moins un agent d'absorption est noyé à la surface et/ou à l'intérieur de la pièce fibreuse moulée au cours du processus de prédurcissement et/ou de durcissement du liant duroplastique.

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