Molded insulation products and their manufacture using continuous-filament wool
AssigneeOwens Corning Fiberglas Technology, Inc.
InventorSimon R. Kirk
Life of this patent
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Abstract
A process of forming a thermal insulation layer (34) includes advancing a multifilament strand of continuous filaments (12) through a nozzle (10) to separate the filaments (16) from each other to form a continuous-filament wool (14), applying a binder to the filaments, placing a charge comprising the wool in a mold (32), and molding the charge to form an insulation layer (34). In a preferred embodiment, the charge (30) further comprises a container, such as a bag (24) formed from a poylmer film. The filaments are preferably prepared from a high-strength, high-temperature resistant glass material. The molded wool is advantageously used to manufacture products, such as catalytic converters (46) wherein the wool is used to thermally insulate the catalytic core element (48).
Claims10
A process of forming a thermal insulation layer comprising advancing a strand comprising continuous filaments composed of a glass material having a softening point of at least about 700° C. through a nozzle to separate the filaments from each other and form a continuous-filament wool, applying a binder material to the filaments, placing a charge comprising the continuous-filament wool in a compression mold, and compression molding the charge to form an insulation layer.
Dependencies are inferred from the claim text.