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US 5,691,036 AGranted
High pressure high temperature cushioning material
AssigneesDu Pont Taiwan Limited, Industrial Technology Research Institute
InventorsMichael Yuan-Chang Lin, Yen-Jung Hu, Hsu-Yeh Huang, Der-Guey Luo
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Abstract
A cushioning material is disclosed having at least two layers of unwoven, temperature-resistant staple fibers and layers of reinforcing scrim between the unwoven layers, wherein the entire structure is needlepunched for integrity and one face is embossed with a pattern to increase resiliency.
Claims13
A cushioning material comprising at least two fibrous batts of staple fibers with adjacent facing surfaces and at least one outer surface and a layer of scrim between the facing surfaces,
- characterized in that
- the fibrous batts are staple fibers and are from 1.5 to 10 millimeters thick, at least one of the fibrous batts has embossing on an outer surface, in which depressions having a depth of 10 to 40 percent of the thickness of the batt and an average width of 0.5 to 4 millimeters cover, 25 to 70 percent of the total outside surface;
- and,
- the scrim has a density from 30 to 120 grams per square meter.
1 more element
Dependencies are inferred from the claim text.