# US 2014/0272268 A1 · High strength tape articles from ultra-high molecular weight polyethylene

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- Number: US 2014/0272268 A1
- Document ID: US20140272268A1
- Status: Published application
- Kind: A1
- Application number: 14/224,144
- Filed: 2014-03-25
- Published: 2014-09-18
- Earliest claimed: 2009-08-11
- Assignees: Honeywell International Inc.
- Applicants: Honeywell International Inc.
- Inventors: THOMAS TAM; MARK BENJAMIN BOONE; STEVEN THOMAS CORREALE
- Web page: https://patentgrep.com/patent/US20140272268A1

## CPC

- 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}
- B29C 43/22: of articles of indefinite length
- B29C 55/06: parallel with the direction of feed
- B29C 55/065: {in several stretching steps}
- 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 5/26: another layer {next to it} also being fibrous or filamentary {(relative arrangement of fibres or filaments of different layers B32B5/12)}
- B32B 27/12: next to a fibrous or filamentary layer
- D01F 6/04: from polyolefins
- D02G 3/40: Yarns in which fibres are united by adhesives; Impregnated yarns or threads
- F41H 5/0471: {Layered armour containing fibre- or fabric-reinforced layers (in combination with ceramic layers F41H5/0428, with metal layers F41H5/0457)}
- B32B 2262/0253: Polyolefin fibres
- B32B 2307/558: Impact strength, toughness
- B32B 2307/56: Damping, energy absorption
- B32B 2571/00: Protective equipment
- B32B 2571/02: defensive, e.g. armour plates or anti-ballistic clothing
- D10B 2321/0211: high-strength or high-molecular-weight polyethylene, e.g. ultra-high molecular weight polyethylene [UHMWPE]
- Y10T 428/24: Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T 428/24058: including grain, strips, or filamentary elements in respective layers or components in angular relation
- Y10T 428/24479: including variation in thickness
- Y10T 428/24603: Fiber containing component
- Y10T 428/2495: Thickness [relative or absolute]
- Y10T 428/249921: Web or sheet containing structurally defined element or component
- Y10T 428/2913: Rod, strand, filament or fiber
- Y10T 442/2623: Ballistic resistant
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- D01F: CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D02G: CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- F41H: ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- D10B: INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Tape articles having improved properties are made from ultra-high molecular weight (UHMW) multi-filament yarns. The tape articles can have a ratio of the low temperature area under the curve (120° C. to Tm-onset) to the total area under the curve (120° C. to 165° C.) of less than about 0.15 as calculated from an increasing temperature DSC scan from a temperature of 30° C. to a temperature of 200° C. at a constant rate of 10° C. per minute. Additionally, in some examples the tape articles can also have a tenacity at least about 24 g/d (2.06 GPa) when measured by ASTM D882-09 at a 10 inch (25.4 cm) gauge length and at an extension rate of 100%/min. Further, the tape articles can have no long period of less than 450 Angstroms (Å) when measured by small angle x-ray analysis.

## Claims

### Claim 1

A tape article made from ultra-high molecular weight polyethylene multi-filament yarn, the tape article comprising:
an average cross-sectional aspect ratio of at least about 10:1; and
a ratio of the low temperature area under the curve (120° C. to Tm-onset) to the total area under the curve (120° C. to 165° C.) of less than about 0.15 as measured by an increasing temperature DSC scan from a temperature of 30° C. to a temperature of 200° C. at a constant rate of 10° C. per minute.

### Claim 2 (depends on 1)

A fabric comprising tape articles as described in claim 1.

### Claim 3 (depends on 1)

A laminate comprising two or more unidirectional layers of the tape articles as described in claim 1 with the tape direction in adjoining layers being rotated from each other by from about 15 to 90 degrees.

### Claim 4 (depends on 1)

An impact and penetration resistant assembly comprising at least one member from the group consisting of a fabric comprising tape articles as described in claim 1, a laminate comprising tape articles as described in claim 1, and a combination thereof.