Intumescent materials in non-woven three-dimensional structures

摘要

The present application relates to a continuous filament nonwoven fabric in which the filaments of the nonwoven fabric comprise an expandable thermoplastic material and a mat made from the continuous filament nonwoven fabric. Nonwoven fabrics or mats can be beneficially used for sealing applications because they can be cut to desired dimensions and inserted into cavities. At this stage, the nonwoven fabric or mat allows further fluid to be introduced into and out of the cavity, but at a later stage, the expandable thermoplastic material is activated and foamed to form part of the cavity or The whole can be filled. This seal prevents air, water or noise from entering the cavity and the space behind the cavity. [Selection] Figure 1B