# US 9,751,278 B2 · Multi-axial fabrics, polymer-fiber laminates, and bodies incorporating same for connecting applications

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- Number: US 9,751,278 B2
- Document ID: US9751278B2
- Status: Granted
- Kind: B2
- Application number: 14/441,250
- Filed: 2013-11-25
- Published: 2015-10-15
- Granted: 2017-09-05
- Earliest claimed: 2012-11-26
- Assignees: OCV Intellectual Capital, LLC
- Applicants: OCV Intellectual Capital, LLC
- Inventors: Georg Adolphs; Lihua Liu; Christopher John Skinner
- Web page: https://patentgrep.com/patent/US9751278B2

## CPC

- B32B 5/026: {Knitted fabric}
- B32B 5/02: characterised by structural features of a {fibrous or filamentary} layer {(layer formed of metallic wires B32B15/02; layer formed of natural mineral fibres B32B19/02; layer formed of wood fibres B32B21/02)}
- B32B 5/024: {Woven fabric}
- B32B 5/06: characterised by a fibrous {or filamentary} layer {mechanically connected, e.g. by needling} to another layer, e.g. of fibres, of paper
- B32B 5/08: the fibres or filaments of a layer being of different substances {, e.g. conjugate fibres, mixture of different fibres}
- B32B 5/10: characterised by a fibrous {or filamentary} layer reinforced with filaments
- B32B 5/12: characterised by the relative arrangement of fibres or filaments of {different layers, e.g. the fibres or filaments being parallel or perpendicular to each other}
- D04B 21/20: specially adapted for knitting articles of particular configuration
- B32B 2262/02: Synthetic macromolecular fibres
- B32B 2262/0269: Aromatic polyamide fibres
- B32B 2262/101: Glass fibres
- B32B 2262/106: Carbon fibres, e.g. graphite fibres
- B32B 2597/00: Tubular articles, e.g. hoses, pipes
- B32B 2603/00: Vanes, blades, propellers, rotors with blades
- Y02E 10/72: Wind turbines with rotation axis in wind direction
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- D04B: KNITTING
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

Multi-axial fabrics (including hybrid, multi-axial fabrics) and polymer-fiber laminates are disclosed. Bodies (e.g., cylindrical and/or flanged bodies) incorporating the fabrics and/or laminates are also disclosed. The bodies exhibit improved performance and/or reduced costs for connecting applications.

## Claims

### Claim 1

A hybrid, multi-axial fabric comprising:
a plurality of reinforcing fibers includes a plurality of first fibers, a plurality of second fibers, and a plurality of third fibers;
wherein the first fibers have a first orientation within the fabric;
wherein the second fibers have a second orientation within the fabric, the second orientation differing from the first orientation by a first offset;
wherein the third fibers have a third orientation within the fabric, the third orientation differing from the first orientation by a second offset;
wherein the first fibers include a plurality of fourth fibers and a plurality of fifth fibers;
wherein an elastic modulus of the fourth fibers differs from an elastic modulus of the fifth fibers;
wherein the fourth fibers account for between 10 wt % to 40 wt % of the first fibers; and
wherein the fifth fibers account for between 60 wt % to 90 wt % of the first fibers.

### Claim 2 (depends on 1)

The hybrid, multi-axial fabric of claim 1, wherein the hybrid, multi-axial fabric is a unitary fabric including the reinforcing fibers.

### Claim 3 (depends on 1)

The hybrid, multi-axial fabric of claim 1, wherein the hybrid, multi-axial fabric is formed from a first fabric and a second fabric;
wherein the first fabric includes the first fibers; and
wherein the second fabric includes the second fibers and the third fibers.

### Claim 4 (depends on 3)

The hybrid, multi-axial fabric of claim 3, wherein the first fabric and the second fabric are stitched together.

### Claim 5 (depends on 1)

The hybrid, multi-axial fabric of claim 1, wherein the hybrid, multi-axial fabric is formed from a first fabric, a second fabric, and a third fabric;
wherein the first fabric includes the first fibers;
wherein the second fabric includes the second fibers; and
wherein the third fabric includes the third fibers.

### Claim 6 (depends on 5)

The hybrid, multi-axial fabric of claim 5, wherein the first fabric, the second fabric, and the third fabric are stitched together.

### Claim 7 (depends on 1)

The hybrid, multi-axial fabric of claim 1, wherein the first orientation is x; and
wherein the first offset is approximately x−10° and the second offset is approximately x+10°.

### Claim 8 (depends on 1)

The hybrid, multi-axial fabric of claim 1, wherein the first orientation is x; and
wherein the first offset is approximately x−15° and the second offset is approximately x+15°.

### Claim 9 (depends on 1)

The hybrid, multi-axial fabric of claim 1, wherein the first orientation is x; and
wherein the first offset is approximately x−20° and the second offset is approximately x+20°.

### Claim 10 (depends on 1)

The hybrid, multi-axial fabric of claim 1, wherein the first orientation is x; and
wherein the first offset is approximately x−25° and the second offset is approximately x+25°.

### Claim 11 (depends on 1)

The hybrid, multi-axial fabric of claim 1, wherein the first orientation is x; and
wherein the first offset is approximately x−30° and the second offset is approximately x+30°.

### Claim 12 (depends on 1)

The hybrid, multi-axial fabric of claim 1, wherein the first orientation is x; and
wherein the first offset is approximately x−45° and the second offset is approximately x+45°.

### Claim 13 (depends on 1)

The hybrid, multi-axial fabric of claim 1, wherein the first orientation is x; and
wherein the first offset is between x−10° and x−30° and the second offset is between x+10° and x+30°.

### Claim 14 (depends on 1)

The hybrid, multi-axial fabric of claim 1, wherein the first orientation is x; and
wherein the first offset is between x−5° and x−45° and the second offset is between x+5° and x+45°.

### Claim 15 (depends on 1)

The hybrid, multi-axial fabric of claim 1, wherein the first orientation is 0°.

### Claim 16 (depends on 1)

The hybrid, multi-axial fabric of claim 1, wherein the first orientation is 90°.

### Claim 17 (depends on 1)

The hybrid, multi-axial fabric of claim 1, wherein an absolute value of the first offset is different from an absolute value of the second offset.

### Claim 18 (depends on 1)

The hybrid, multi-axial fabric of claim 1, wherein the reinforcing fibers are selected from the group consisting of polymer fibers, carbon fibers, aramide fibers, and glass fibers.

### Claim 19 (depends on 1)

The hybrid, multi-axial fabric of claim 1, wherein the fourth fibers are H-type glass fibers and the fifth fibers are E-CR-type glass fibers.

### Claim 20 (depends on 1)

The hybrid, multi-axial fabric of claim 1, wherein a tensile strength of the fourth fibers differs from a tensile strength of the fifth fibers.
