Flexible composite systems and methods
AssigneeDsm IP Assets B.V.
InventorsChristopher Michael Adams, Wesley Edward Hatcher, Keith Joel McDaniels
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Abstract
In various embodiments, an improved flexible-composite material is described that comprises at least one scrim constructed from at least two unidirectional tape layers bonded together and at least one woven fabric, non-woven fabric, or membrane bonded to the scrim. In various embodiments, the unidirectional tape layers comprise a plurality of parallel fiber bundles comprising monofilaments within an adhesive resin. In various embodiments, the fiber bundles are separated by gaps that can be filled in by adhesive or non-adhesive resin.
Claims17
A flexible-composite material comprising:
- at least one scrim, said scrim comprising two or more unidirectional tape layers laid in a side by side pattern;
- and
- two or more additional layers comprising at least one of a film or fabric, said additional layers disposed on both sides of said scrim,
- wherein each of said unidirectional tape layers comprise a plurality of parallel yarns, each of said yarns comprising a bundle of monofilaments in an adhesive resin, wherein the yarns are separated at from about 0.2 yarns/cm to about 4 yarns/cm by adhesive and fiber free gaps, and wherein said adhesive free gaps are filled with a non-breathable adhesive.
A flexible-composite material comprising:
- at least one scrim further comprising at least two gapped unidirectional tape layers bonded together at a bias;
- wherein said gapped unidirectional tape layers each comprise a plurality of parallel yarns comprising monofilaments in an adhesive resin;
- wherein said yarns are overspread such that the yarns are separated by adhesive and fiber free gaps, said gaps filled with a non-breathable adhesive;
- wherein said monofilaments have diameters less than about 60 microns;
- and
- wherein spacing between individual monofilaments within an adjoining strengthening group of monofilaments is within a gap distance in the range between abutting and/or stacked monofilaments up to about 300 times the monofilament major diameter.
Dependencies are inferred from the claim text.