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Artificial turf yarn with improved processibility and friction management

An artificial turf, filament technology, applied in rayon manufacturing, textile and papermaking, one-component polyolefin rayon, etc., can solve problems such as increased incidence of skin abrasions

Pending Publication Date: 2020-12-01
DOW GLOBAL TECH LLC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem with artificial turf is the increased incidence of human skin abrasions compared to playing on natural grass

Method used

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  • Artificial turf yarn with improved processibility and friction management
  • Artificial turf yarn with improved processibility and friction management
  • Artificial turf yarn with improved processibility and friction management

Examples

Experimental program
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preparation example Construction

[0052] Preparation method of artificial turf filament

[0053] Similarly, other embodiments relate to methods of making artificial turf. The artificial turf filaments described herein may be prepared using any suitable method for producing artificial turf filaments from the formulations described above.

[0054] The present artificial turf filaments may be prepared by extrusion, specifically by mixing the base vinyl polymer and one or more PDMS components. A suitable artificial turf filament extruder can be equipped with a single common screw and a melt pump ("gear pump" or "melt pump") to precisely control the consistency of the polymer volume flow into the die. Artificial turf filament dies may have multiple single holes for individual filaments distributed over annular or rectangular spinnerets. The shape of the hole corresponds to the desired cross-sectional shape of the filament, including, for example, rectangular, dog-bone, v-shaped, and Mexican hat. A standard spi...

example

[0082]The following examples illustrate one or more features of the disclosure. The examples of the present invention demonstrate improved friction control using artificial turf filaments of the present formulation. The polymer components used in the examples are provided below.

[0083] The UHMW PDMS component is MB50-613, which is a DOWLEX TM 2035G UHMW PDMS masterbatch in LLDPE carrier, it contains the polysiloxane of 50 weight % and M n = 300,000 g / mol. DOWLEX TM The density of 2035G = 0.919g / cc, and the melt index I 2 = 6.0 g / 10 min. MB50-613 masterbatch was produced by The Dow Chemical Company, Midland, MI.

[0084] The HMW PDMS component is MB25-502, which is a dispersed in I 2 HMWPDMS master batch in LDPE carrier of 8g / 10min, its siloxane content is 25% by weight and M n = 17,000 g / mol. MB25-502 masterbatch is manufactured by The Dow Chemical Company, Midland, MI.

[0085] The basic vinylic polymer is an ethylene-hexene copolymer prepared by a solution polyme...

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Abstract

Embodiments of the present disclosure are directed to an artificial turf filament formed from a formulation comprising an ethylene-based polymer having a density 0.900 g / c to 0.955 g / cc and a melt index (I2) of 0.1 g / 10 min to 20 g / 10 min as measured according to ASTM D1238 (at 190 DEG C, 2.16 kg), and one or more polydimethylsiloxane (PDMS) components having a number average molecular weight (Mn)of from 10,000 g / mol to 500,000 g / mol, wherein the Mn is measured by Gel Permeation Chromatography (GPC).

Description

[0001] Cross References to Related Applications [0002] This application claims priority from European Patent Application No. 18382307.9 filed May 3, 2018, which is hereby incorporated by reference in its entirety. technical field [0003] Embodiments of the present disclosure generally relate to articles of turf filaments, and artificial turf comprising artificial turf filaments. Background technique [0004] The current field of artificial turf contains polyethylene fibers called yarns that mimic real blades of grass. The performance of the entire turf system is largely determined by the yarn. The fibers are tufted to the primary backing and covered with a secondary backing to keep the yarns dispersed and secured. Granular filler is distributed throughout the range to keep the yarn in an upright position and provide shock absorption. [0005] The problem with artificial turf is the increased incidence of human skin abrasions compared to playing on natural grass. Anot...

Claims

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Application Information

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IPC IPC(8): C08L23/02C08L23/08D01F1/02D01F1/10D01F6/30C08L23/04
CPCD01F6/46E01C13/08C08L23/08C08L83/04D01F6/30
Inventor C·谢瓦利尔C·洛普E·阿尔瓦雷斯D·洛佩兹T·K·德梅伦德尔
Owner DOW GLOBAL TECH LLC
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