Expandable filler insert and methods of producing the...

Details Expandable filler insert and methods of producing the... Expandable filler insert and methods of producing the...

B - Operations, Transporting

62

D

B62D 29/00 (2006.01) B60R 13/08 (2006.01)

Patent

CA 2670779

A carrier-free expandable filler insert (10) for filling or sealing a hollow space or cavity (2) is provided. The insert comprises a self-supporting continuous structure (11) that may be produced by contour extrusion molding or injection molding a polymer matrix containing a polymer and/or polymer precursor and a latent blowing agent. The expandable filler insert is secured to the interior surface of a vehicle pillar (1), for example, using a fixing element (12) that may be integral with the self-supporting continuous structure, the polymer matrix thereafter being activated and expanded by heating.

L'invention concerne un insert (10) de garniture expansible sans support destiné à combler ou à boucher un espace creux ou une cavité (2). L'insert comporte une structure continue autoporteuse (11) qui peut être produite par moulage par extrusion sur profil ou par moulage par injection d'une matrice de polymère contenant un polymère et / ou un précurseur de polymère et un agent de gonflement latent. L'insert de garniture expansible est fixé à la surface intérieure d'un pilier (1) de véhicule, par exemple, à l'aide d'un élément (12) de fixation qui peut faire corps avec la structure continue autoporteuse, la matrice de polymère étant ensuite activée et dilatée par chauffage.

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