# US 10,118,363 B2 · Antislip sheet material with twisted tapes

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- Number: US 10,118,363 B2
- Document ID: US10118363B2
- Status: Granted
- Kind: B2
- Application number: 15/211,047
- Filed: 2016-07-15
- Published: 2016-11-10
- Granted: 2018-11-06
- Earliest claimed: 2007-11-05
- Assignees: Owens Corning Intellectual Capital, LLC
- Applicants: Owens Corning Intellectual Capital, LLC
- Inventors: Manish K. Seth; Martin Vido
- Web page: https://patentgrep.com/patent/US10118363B2

## CPC

- B32B 5/024: {Woven fabric}
- B32B 3/263: {characterised by a layer having non-uniform thickness}
- B32B 3/30: characterised by a layer formed with recesses or projections, e.g. {hollows, grooves, protuberances, ribs (apertured layer B32B3/266; layer with cavities or internal voids B32B3/26)}
- B32B 5/14: characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
- B32B 7/05: the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection (using interposed adhesives or bonding materials applied in spaced arrangements B32B7/14)
- B32B 25/10: next to a fibrous or filamentary layer
- B32B 27/12: next to a fibrous or filamentary layer
- B32B 27/302: {comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers}
- B32B 27/306: {comprising vinyl acetate or vinyl alcohol (co)polymers}
- B32B 27/308: {comprising acrylic (co)polymers}
- B32B 27/32: comprising polyolefins {(comprising vinyl (co)polymers or acrylic (co)polymers B32B27/30)}
- B32B 27/34: comprising polyamides
- B32B 27/36: comprising polyesters
- D03D 15/283: synthetic polymer-based, e.g. polyamide or polyester fibres (cellulose-based artificial fibres D03D15/225)
- D03D 15/41: with specific twist
- D03D 15/46: Flat yarns, e.g. tapes or films
- D03D 15/54: coloured
- D03D 15/58: characterised by the coefficients of friction
- D06N 3/0002: {characterised by the substrate}
- D06N 5/00: {Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch (compositions of bituminous materials C08L95/00, roof covering E04D5/00, roofing underlays E04D12/002)}
- E04D 12/002: {Sheets of flexible material, e.g. roofing tile underlay}
- B32B 2262/0207: Elastomeric fibres
- B32B 2262/0223: Vinyl resin fibres
- B32B 2262/023: Aromatic vinyl resin, e.g. styrenic (co)polymers
- B32B 2262/0246: Acrylic resin fibres
- B32B 2262/0253: Polyolefin fibres
- B32B 2262/0276: Polyester fibres
- B32B 2307/402: Coloured
- B32B 2307/54: Yield strength; Tensile strength
- B32B 2307/582: Tearability
- B32B 2307/71: Resistive to light or to UV
- B32B 2307/744: Non-slip, anti-slip
- B32B 2419/00: Buildings or parts thereof
- B32B 2419/06: Roofs, roof membranes
- B32B 2553/00: Packaging equipment or accessories not otherwise provided for
- D06N 2209/103: Resistant to mechanical forces, e.g. shock, impact, puncture, flexion, shear, compression, tear
- D06N 2209/106: Roughness, anti-slip, abrasiveness
- D10B 2321/02: polyolefins
- D10B 2321/021: polyethylene
- D10B 2321/022: polypropylene
- D10B 2321/121: polystyrene
- D10B 2331/02: polyamides (D10B2331/08 takes precedence)
- D10B 2331/04: polyesters, e.g. polyethylene terephthalate [PET]
- D10B 2401/063: high strength
- Y10T 428/24636: Embodying mechanically interengaged strand[s], strand-portion[s] or strand-like strip[s] [e.g., weave, knit, etc.]
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- D03D: WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D06N: WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- E04D: ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS (coverings of outer walls by plaster or other porous material E04F13/00)
- D10B: INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A sheet of material suitable for roofing or industrial wrapping applications has an anti-skid surface formed by ridges of twisted tapes. The sheet comprises a woven scrim of warp tapes and weft tapes. Some of the tapes are twisted about their longitudinal axis, for example about (25) to (400) revolutions per meter, to form ridges having a height substantially greater than the thickness of the tapes. The ridges impart an anti-skid surface to the sheet. The scrim is bonded to a coating or film to make the sheet waterproof.

## Claims

### Claim 1

A sheet of material having an anti-skid surface, comprising:
a first set of tapes generally parallel to each other;
a second set of tapes generally parallel to each other and perpendicular to the first set of tapes;
wherein the tapes of the first set and the second set are plastic and have a width greater than their thickness, and wherein the tapes of the first set and the second set are interwoven with each other to form a scrim;
wherein every fourth tape of the first set is twisted to form a first plurality of spaced apart parallel ridges, wherein each of the twisted tapes has a plurality of tape revolutions, wherein each tape revolution overlies an adjacent tape revolution to form a circular cross-section about its longitudinal axis, wherein each of the twisted tapes has a width greater than 4 mm and less than 6 mm, and wherein each of the twisted tapes is twisted between about 250 revolutions per meter and about 400 revolutions per meter;
wherein a height of the first plurality of ridges is at least five times greater than the thickness of untwisted tapes;
wherein every third tape of the second set is twisted to form a second plurality of spaced apart parallel ridges, wherein each of the twisted tapes has a plurality of tape revolutions, wherein each tape revolution overlies an adjacent tape revolution to form a circular cross-section about its longitudinal axis, wherein each of the twisted tapes has a width greater than 4 mm and less than 6 mm, and wherein each of the twisted tapes is twisted between about 250 revolutions per meter and about 400 revolutions per meter;
wherein a height of the second plurality of ridges is at least five times greater than the thickness of untwisted tapes;
wherein the first and second pluralities of spaced apart parallel ridges form an anti-skid contour of the sheet;
a film bonded to the scrim by lamination, wherein said film comprises a high coefficient of friction elastomer.

### Claim 2 (depends on 1)

The sheet material of claim 1, wherein the twisted tapes and the untwisted tapes of the first set have the same width.

### Claim 3 (depends on 1)

The sheet material of claim 1, wherein the twisted tapes of the second set have different widths than other tapes of the second set.

### Claim 4 (depends on 1)

The sheet material of claim 1, wherein each of the first and second sets have 1 to 25 tapes per inch.

### Claim 5 (depends on 1)

The sheet material of claim 1, wherein the ridges have a height of about ten to twenty mils.

### Claim 6 (depends on 1)

The sheet material of claim 1, wherein the twisted tapes are laid on top of and follow a same weaving path of an untwisted tape.