Reinforcing mat having thermally fused stitching

Details Reinforcing mat having thermally fused stitching Reinforcing mat having thermally fused stitching

2005-04-22

2009-10-06

Salvatore, Lynda (Department: 1794)

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Nonwoven fabric

Including parallel strand or fiber material within the...

C442S361000, C442S364000, C428S296700

Reexamination Certificate

active

07598187

ABSTRACT:
A mat useful for reinforcing composite materials is made up of at least first and second sets of fibers, the first set of fibers laid as a ply in spaced apart parallel relationship in the direction of construction and the second set laid as a ply in spaced apart parallel relationship perpendicular to the direction of construction. These fibers define interstices, into which a continuous filament is knitted to provide stability. The filament has a core portion and a sheath portion, the sheath portion having a lower melting point than the core portion. The sheath portion is thermally fusible to form a plurality of closed loops in which the respective sets of fibers are entrapped. The fibers are glass or glass rovings and the filament is a polyester, the core portion being a high-viscosity poly(ethylene terephthalate) and the sheath portion being a low-viscosity poly(ethylene terephthalate).

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patent: WO 02/04725 (2002-01-01), None

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