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US 7,396,784 B2Granted
Multilayer laminated sheet material usable for making protective garments, in particular for fire-fighters
AssigneeKermel
InventorLaurent Thiriot
Life of this patent
Estimating the term…
Abstract
This material is remarkable in that it is made by weaving or knitting, in such a manner as to form a structure comprising two superposed faces (1, 2) intermittently interconnected to each other so as to form pockets, and in which: one of the layers shrinks under the effect of heat; and the linking between the layers is implemented by intermittently linking selected yarns so as to form said pockets.
Claims7
A multi-layer laminated sheet material, for a thermal barrier in making protective garments, the sheet material being woven or knitted, comprising:
- at least a first layer and a second layer superposed and intermittently linked to each other by selected yarns so as to form pockets between the first and second layers, the first layer and the second layer comprised of one or more fire resistant materials;
- wherein the pockets are flat in normal use, and wherein the second layer is comprised of a material that shrinks under the effect of heat more than the first layer in order that under the effect of a high temperature of about 300° C. and of the shrinkage difference between the two layers, the pockets project in relief, increasing the insulating ability of the material against the high temperature.
Dependencies are inferred from the claim text.