Reinforcing laminate containing carrier and expandable polymer

Details Reinforcing laminate containing carrier and expandable polymer Reinforcing laminate containing carrier and expandable polymer

B - Operations, Transporting

32

B

B32B 5/18 (2006.01) B29C 44/12 (2006.01) B29C 44/18 (2006.01) B29C 47/02 (2006.01) B62D 29/00 (2006.01)

Patent

CA 2303835

A laminate for reinforcing a structural member having a plurality of side walls comprises a carrier having at least one inclined support surface. Each support surface has an outer edge disposed toward a respective side wall. A layer of extruded uncured structural foam is on each support surface and terminates inwardly of the outer edge. The foam expands when cured and tumbles down the inclined support surface of the carrier to become bonded to the side wall as well as the carrier. By being spaced from the outer edge of the support surface, the tendency for the foam to wipe against the side wall is minimized as is the tendency for a worker to touch the foam when the worker places the carrier into the structural member.

L'invention concerne un stratifié (10) pour renforcer un élément de structure pourvu de plusieurs parois latérales (14), qui comporte un support (24) présentant au moins une surface de support (28) inclinée. Chaque surface de support (28) comporte un bord extérieur (33) dirigé vers une paroi latérale respective (14). Une couche de mousse structurée non durcie extrudée (36) se trouve sur chaque surface de support (28) et se termine vers l'intérieur du bord extérieur (33). La mousse (36) se dilate lorsqu'elle est durcie, et se répand le long de la surface de support inclinée (28) du support de façon à se coller à la paroi latérale (14) et au support (24). En espaçant la mousse du bord extérieur (33) de la surface de support (28), on réduit au minimum la tendance de la mousse à frotter contre la paroi latérale (14) et la probabilité qu'un travailleur touche la mousse (36) lorsque celui-ci place le support (24) dans l'élément de structure.

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