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US 10,794,012 B2Granted
Multi-axial fabric
AssigneeNicolon Corporation
InventorsDavid Michael Jones, Randall Eugene Johnson, Michael D. Samueloff
Life of this patent
Estimating the term…
Abstract
The present invention is directed to a multi-axial fabric which is dimensionally-stabilized. The composite fabric has a substrate and a plurality of first, second, third, and fourth strands disposed across the substrate and oriented in non-parallel directions with respect to one another. Binding fiber secures the aforementioned strands to the substrate. The composite fabric can be substantially free of more than three strands overlapping at a common position on the substrate. A road employing the multi-axial fabric is described.
Claims31
A composite fabric comprising:
- a. a substrate comprising a nonwoven fabric comprising polymeric fibers having melting point greater than 320° F. (160° C.), the substrate having a low surface area side and a high surface area side, the high surface area side having a greater absorbency than the low surface side, and the low surface area side comprising fused fibers;
- b. a plurality of first strands disposed across the substrate;
- c. a plurality of second strands disposed across the substrate and being substantially perpendicular to the first strands;
- d. a plurality of third strands disposed across the substrate and being positioned at a first oblique angle with respect to either the plurality of first strands or the plurality of second strands;
- e. a plurality of fourth strands disposed across the substrate and being positioned at a second oblique angle with respect to either the plurality of first strands or the plurality of second strands and being substantially perpendicular to the plurality of third strands;
- f. a plurality of binding fibers disposed through and across the entire substrate, the plurality of first strands, the plurality of second strands, the plurality of third strands, and the plurality of fourth strands along an axis substantially parallel with the plurality of first strands, such that the plurality of binding fibers secures the plurality of first strands, the plurality of second strands, the plurality of third strands, and the plurality of fourth strands to the substrate and is present between strands of the first plurality of strands;
- and
- g. optionally a tack layer disposed on the high surface area side to act as a water barrier for the composite fabric;
- wherein all strands are disposed across the high surface area of the substrate and comprise mineral fibers;
- and
- wherein no more than three of the plurality of first strands, the plurality of second strands, the plurality of third strands, and the plurality of fourth strands overlap at intersections of the plurality of first strands, the plurality of second strands, the plurality of third strands, and the plurality of fourth strands so that the composite fabric is free of protrusions;
- and
- wherein a load positioned on the composite fabric is distributed across the plurality of first strands, the plurality of second strands, the plurality of third strands, and the plurality of fourth strands.
10 more elements
A composite fabric comprising:
- a. a substrate comprising a nonwoven fabric comprising polymeric fibers having melting point greater than 320° F. (160° C.), the substrate having a low surface area side and a high surface area side, the high surface area side having a greater absorbency than the low surface side, and the low surface area side comprising fused fibers;
- b. a plurality of first strands disposed across the substrate and oriented in a first direction;
- c. a plurality of second strands disposed across the substrate and being oriented in a second direction, the second direction being non-parallel with the first direction;
- d. a plurality of third strands disposed across the substrate and being oriented in a third direction, the third direction being non-parallel with either the first direction or the second direction;
- e. a plurality of fourth strands disposed across the substrate and being oriented in a fourth direction, the fourth direction being non-parallel with the first direction, the second direction, and the third direction;
- f. a plurality of binding fibers disposed through and across the entire substrate, the plurality of first strands, the plurality of second strands, the plurality of third strands, and the plurality of fourth strands along an axis substantially parallel with the plurality of first strands, such that the plurality of binding fibers secures the plurality of first strands, the plurality of second strands, the plurality of third strands, and the plurality of fourth strands, to the substrate and is present between strands of the first plurality of strands;
- and
- g. optionally, a tack layer disposed on the high surface area side to act as a water barrier for the composite fabric;
- wherein all strands comprise mineral fiber and are disposed across the high surface area of the substrate;
- and
- wherein no more than three of the plurality of the first strands, the plurality of second strands, the plurality of third strands, and the plurality of fourth strands overlap at intersections of the plurality of first strands, the plurality of second strands, the plurality of third strands, and the plurality of fourth strands so that the composite fabric is free of protrusions;
- and
- wherein a load positioned on the composite fabric is distributed across the plurality of first strands, the plurality of second strands, the plurality of third strands, and the plurality of fourth strands.
10 more elements
A road comprising:
- a layer of asphalt disposed on a road bed, a composite fabric disposed on the asphalt, and a layer of paving material disposed on the composite fabric;
- the composite fabric comprising:
- a. a substrate comprising a nonwoven fabric comprising polymeric fibers having melting point greater than 320° F. (160° C.), the substrate having a low surface area side and a high surface area side, the high surface area side having a greater absorbency than the low surface side, and the low surface area side comprising fused fibers;
- b. a plurality of first strands disposed across the substrate and oriented in a first direction;
- c. a plurality of second strands disposed across the substrate and being oriented in a second direction, the second direction being non-parallel with the first direction;
- d. a plurality of third strands disposed across the substrate and being oriented in a third direction, the third direction being non-parallel with the first direction or the second direction;
- e. a plurality of fourth strands disposed across the substrate and being oriented in a fourth direction, the fourth direction being non-parallel with the first direction, the second direction, and the third direction;
- and
- f. a plurality of binding fibers disposed through and across the entire substrate, the plurality of first strands, the plurality of second strands, the plurality of third strands, and the plurality of fourth strands along an axis substantially parallel with the plurality of first strands, such that the plurality of binding fibers secures the plurality of first strands, the plurality of second strands, the plurality of third strands, and the plurality of fourth strands to the substrate and is present between strands of the first plurality of strands;
- and
- g. optionally, a tack layer disposed on the high surface area side to act as a water barrier for the composite fabric;
- wherein:
- all strands are disposed across the high surface area of the substrate and are mineral fibers;
- and wherein no more than three of the plurality of first strands, the plurality of second strands, the plurality of third strands, and the plurality of fourth strands overlap at intersections of the plurality of first strands, the plurality of second strands, the plurality of third strands, and the plurality of fourth strands so that the composite fabric is free of protrusions;
- wherein a load positioned on the composite fabric is distributed across the plurality of first strands, the plurality of second strands, the plurality of third strands, and the plurality of fourth strands.
12 more elements
Dependencies are inferred from the claim text.