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Polyethylene fabric, and backing and artificial turf made therefrom

A technology of artificial turf and polyethylene, applied in the field of fabrics, can solve the problems of increased cost, tensile properties, effects of creep resistance, etc.

Pending Publication Date: 2020-01-24
TOTAL RES & TECH FELUY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These solutions sometimes have limited impact on creep resistance
In other cases, they add significantly to the cost or they have a negative impact on the tensile properties of the tape

Method used

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  • Polyethylene fabric, and backing and artificial turf made therefrom
  • Polyethylene fabric, and backing and artificial turf made therefrom
  • Polyethylene fabric, and backing and artificial turf made therefrom

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0347]According to one embodiment, the backing may comprise different layers stacked on top of each other or bonded to each other. The layer of the backing which is penetrated or intended to be penetrated by the tufted fibers or veils is hereby also referred to as the "primary backing". These primary backings may preferably provide dimensional stability of the carpet or artificial turf and preferably provide spacing between the tufted fibers or grass yarns. The layer of the backing that is not penetrated by the tufted or grass fibers is referred to herein as the "secondary backing". These secondary backings can permanently secure the tufted fibers or grass fibers to the primary backing.

[0348] In some embodiments, the primary backing is preferably a woven fabric of slit film, tape or monofilament according to the present invention; more preferably the primary backing is a scrim of slit film, tape or filament. In some embodiments, the woven fabric includes weft slit films, ...

Embodiment

[0382] testing method:

[0383] Density was measured as measured according to ISO 1183-2:2004 Part 2: Density gradient column method at a temperature of 23°C.

[0384] The melt index MI2 of polyethylene was measured according to ISO 1133:2011 procedure B, condition D at a temperature of 190°C and a load of 2.16 kg.

[0385] The melting temperature of polyethylene was measured according to ISO 11357:2009.

[0386] Molecular weight (M) is determined by size exclusion chromatography (SEC), and in particular by gel permeation chromatography (GPC). n (number average molecular weight), M w (weight average molecular weight), and molecular weight distribution d(M w / M n ) and d’(M z / M w ). Briefly, GPC-IR5 from Polymer Char was used: 10 mg polyethylene sample was dissolved in 10 mL of trichlorobenzene for 1 hour at 160°C. Injection volume: about 400 μL, automatic sample preparation and injection temperature: 160°C. Column temperature: 145°C. Detector temperature: 160°C. T...

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Abstract

The present invention relates to a fabric, such as a backing suitable for tufted carpets or artificial turf, comprising slit films, tapes or monofilaments, said slit film, tape or monofilament comprising at least 70% by weight of a metallocene-catalyzed polyethylene composition based on the total weight of the slit film, tape or monofilament. The metallocene-catalyzed polyethylene composition comprised in the slit film, tape or monofilament is a metallocene-catalyzed polyethylene composition comprises: a) at least 45% by weight based on the total weight of the metallocene-catalyzed polyethylene composition of a metallocene-catalyzed polyethylene A, wherein said metallocene-catalyzed polyethylene A has a density of at most 0.918 g / cm<3>, and a melt index MI2 of at most 4.0 g / 10 min; and b)at least 25% by weight based on the total weight of the metallocene-catalyzed polyethylene composition of a metallocene-catalyzed polyethylene B, wherein said metallocene-catalyzed polyethylene B hasa density which is higher than the density of said metallocene-catalyzed polyethylene A; and a melt index MI2 which is higher than the melt index MI2 said metallocene-catalyzed polyethylene A. The invention further relates to processes for manufacturing said fabric, such as processes for manufacturing a backing suitable for artificial turf, processes for manufacturing the slit film, tape or monofilament and to articles, e.g. a (woven) fabric, comprising said slit film, tape or monofilament obtained by said processes.

Description

technical field [0001] The present invention relates to fabrics, more particularly backings, such as backings suitable for tufted carpets or artificial turf, comprising slit (slit, slit) films, tapes or monofilaments, in particular comprising metallocene Slit films, tapes or monofilaments of catalyzed polyethylene compositions. Background technique [0002] Polypropylene and polyethylene tapes, slit films or monofilaments are frequently used to produce fabrics, such as woven fabrics. Such fabrics can be used in a variety of applications including bags, geotextiles, backings for carpet, backings for tufted carpet and artificial turf, and the like. [0003] Polyethylene is generally a more preferred material than polypropylene when high UV resistance is required and / or when low temperature impact resistance is required. However, a problem encountered in the art is that polyethylene has lower dimensional stability and creep resistance than polypropylene, thereby limiting its ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L23/08D01F6/04D01F6/46D01D5/42C08F2/00C08F4/76
CPCC08L23/0815D01D5/426D01F6/46C08L2203/12C08L2203/16C08L2205/025C08L2314/06C08F210/16D06N2201/0254D06N7/0081D06N2213/02D06N2201/12D06N7/0068C08F2/001C08F4/65927C08F210/14C08F2500/12C08F2500/07C08F2500/26C08F2500/08C08F2500/27C08F2500/34C08L23/06D03D1/00D03D15/283D03D15/46D05C17/023D10B2321/021D10B2503/042D10B2505/202E01C13/08Y10T428/23993
Inventor P.吉尤里克斯
Owner TOTAL RES & TECH FELUY