Solid or hollow plastics profiles, particularly for use in...

E - Fixed Constructions – 06 – B

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E06B 3/263 (2006.01)

Patent

CA 2395496

In order to develop known solid or hollow plastics profiles, particularly those as used to absorb tensile, bending, and/or pressure loads, such as are primarily used as insulating segments in composite profiles containing metallic profiled elements, such that the problems normally encountered with the use of higher filler contents of the plastics material used, intended to favorably influence the expansion characteristics, are ressolved, the invention proposes that said profiles contain a surface layer of a solid, non- porous first plastics material and, in the core region, a fine-pored cellular structure of a second plastics material.

L'objectif de la présente invention est d'améliorer des profilés en matière plastique, à chambre pleine ou creuse, connus, notamment destinés à absorber les contraintes de traction, de flexion et/ou de pression, tels que ceux utilisés principalement en tant que garnitures d'isolation dans des profilés composites qui sont constitués de parties profilées métalliques, de façon à éviter les problèmes qui sont normalement engendrés par la teneur en charges élevée de la matière plastique utilisée, lesdites charges devant améliorer les caractéristiques de dilatation de la matière plastique. Afin d'atteindre cet objectif, lesdits profilés en matière plastique, à chambre pleine ou creuse, contiennent une couche superficielle, qui est constituée d'une première matière plastique, non poreuse et compacte, et, dans la zone centrale, une structure cellulaire à pores fins, qui est constituée d'une seconde matière plastique.

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