B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 44/00 (2006.01) B29C 44/04 (2006.01) B29D 7/00 (2006.01) D04H 1/68 (2006.01)
Patent
CA 2302345
The invention relates to a method for the production of flat structures using foamable material and fibers with a high fineness coefficient. The foamable material is applied by spinning or is foamed totally or partially thereafter on the flat structure by applying energy. Fibers with a fineness coefficient greater than 50 are used. A considerable enlargement of the active surface is achieved by using foamed or post-foamed fibers. This leads to a reduction in bonding agent or binding fiber consumption and in thickness. A reduction in material consumption and costs is also achieved. Insulation values are improved while emissions are reduced.
L'invention concerne un procédé pour produire des structures plates au moyen d'un matériau moussant et de fibres présentant un degré élevé de finesse. Le matériau moussant est expansé lors du filage ou ultérieurement, entièrement ou en partie, dans la structure plate par apport d'énergie. Selon ce procédé, on utilise des fibres présentant un degré de finesse supérieur à 50. L'utilisation de fibres expansées ou pouvant être expansées ultérieurement permet d'agrandir largement la surface active. Il en résulte une diminution de la consommation en liant et en fibre de liage ainsi qu'une réduction de l'épaisseur. Les valeurs d'isolation sont améliorées et le taux d'émission est réduit.
Beckmann Friedhelm
Hesch Rolf
Fetherstonhaugh & Co.
Moller Plast Gmbh
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