Woven polyester webbing for safety belts

Details Woven polyester webbing for safety belts Woven polyester webbing for safety belts

1986-11-10

1987-12-01

McCamish, Marion C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

139420A, 428265, D03D 1500

Patent

active

047104236

ABSTRACT:
A webbing useful for safety belts having an excellent impact energy absorption and a superior impact strength, comprises a webbing made by weaving warps and wefts, at least the warps consisting of polyester filaments which have an intrinsic viscosity of 0.7 or more, a birefringence of 0.08 to 0.15, a tensile strength of 4 g/denier or more, an ultimate elongation of from 50% to 80%, and an elongation value of 5% or less at a point A in a stress-strain curve of the filaments, which point A denotes an intersection point of an extension of a steeply sloped portion of the curve appearing at the initial stage of the elongation of the filaments with an extension of a substantially horizontal or gently sloped portion of the curve appearing at the middle stage of the elongation of the filaments.

REFERENCES:
patent: 4386943 (1983-06-01), Gumbel et al.
patent: 4388364 (1983-06-01), Sanders

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