Insulation product having nonwoven facing and method of...

B - Operations – Transporting – 32 – B

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B32B 17/02 (2006.01) D04H 1/58 (2006.01) D04H 1/72 (2006.01)

Patent

CA 2552517

An insulation product (100, 101) is provided comprising a low density mat (10, 10a, l0b, 111) containing randomly oriented inorganic fibers bonded by a heat cured binder. The fibers comprise fibers (20) with a melting temperature above the curing temperature of the binder. The fibers comprise fibers (21) with a melting temperature below the curing temperature. The mat (10, 10a, 10b, 111) has first and second major surfaces (11, 12) and a pair of side portions (14, 15). A nonwoven sheet (13, 13a, 13b) is bonded to the first major surface (11). The nonwoven sheet (13, 13 a, 13b) comprises randomly oriented glass fibers and is bonded to the first major surface (11) by the heat cured binder.

Produit isolant (100, 101) comportant une natte de faible densité (10, 10a, 10b, 111) renfermant des fibres minérales à orientation aléatoire liées par un liant polymérisé à chaud. Ces fibres comportent des fibres (20) dont le point de fusion est supérieur à la température de polymérisation du liant. Les fibres comportent des fibres (21) dont le point de fusion est inférieur à la température de polymérisation. La natte (10, 10a, 10b, 111) présente une première et une deuxième face principale (11, 12) et une paire de parties latérales (14, 15). Une bande non tissée (13, 13a, 13b) est liée à la première face principale (11). La bande non tissée (13, 13a, 13b) comporte des fibres de verre à orientation aléatoire et est liée à la première face principale (11) au moyen du liant polymérisé à chaud.

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