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Polyethylene-based resin composition, polyethylene-based film

A technology of polyethylene-based resin and composition, applied in the field of polyethylene-based resin composition, can solve problems such as inability to show, and achieve the effects of full transparency and strong wear resistance

Active Publication Date: 2021-09-03
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] However, in Patent Document 1, there is a problem in that the properties of the protective film cannot exhibit sufficient strength to maintain strength in a long-term use environment.

Method used

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  • Polyethylene-based resin composition, polyethylene-based film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0180] After mixing 55.5 mass % of UHMWPE1 and 44.5 mass % of HDPE1, it melt-kneaded using the Toshiba Machine Co., Ltd. TEM-18ss twin-screw extruder (L / D=50). Adjust the feeder to knead in such a way that the temperature = 215° C., the screw speed = 200 rpm, and the discharge rate is about 1 to 2 kg / Hr to obtain a high-concentration dilution of the polyethylene-based resin composition.

[0181] After mixing 66.7% by mass of the high-concentration dilution of the polyethylene-based resin composition obtained above with 33.3% by mass of HDPE2, it was charged into the above-mentioned twin-screw extruder and subjected to the second melt-kneading. The feeder was adjusted so that the temperature = 210° C., the screw speed = 200 rpm, and the discharge rate was 1 to 2 kg / Hr, and kneaded to obtain pellets of the first intermediate of the polyethylene-based resin composition.

[0182] After mixing 81.1 mass % of the 1st intermediate body of the polyethylene-type resin composition obtai...

Embodiment 2

[0188] After mixing 55.5% by mass of UHMWPE1 and 44.5% by mass of LLDPE2, it was melt-kneaded using a TEM-18ss twin-screw extruder (L / D=50) manufactured by Toshiba Machine Co., Ltd. Adjust the feeder to knead in such a way that the temperature = 215° C., the screw speed = 200 rpm, and the discharge rate is about 1 to 2 kg / Hr to obtain a high-concentration dilution of the polyethylene-based resin composition.

[0189] After mixing 66.7% by mass of the high-concentration dilution of the polyethylene-based resin composition obtained above with 33.3% by mass of LLDPE3, it was charged into the above-mentioned twin-screw extruder, and subjected to the second melt-kneading. The feeder was adjusted so that the temperature = 210° C., the screw speed = 200 rpm, and the discharge rate was 1 to 2 kg / Hr, and kneaded to obtain the first intermediate of the polyethylene-based resin composition.

[0190] After mixing 81.1 mass % of the 1st intermediate body of the polyethylene-type resin comp...

Embodiment 3

[0195] After mixing 50% by mass of HDPE1 and 50% by mass of HDPE2, it was melt-kneaded using a Toshiba Machine Co., Ltd. TEM-18ss twin-screw extruder (L / D=50). The feeder was adjusted so that the temperature = 205° C., the screw speed = 200 rpm, and the discharge rate was about 3 to 5 kg / Hr, and kneaded to obtain a polyethylene-based resin composition intermediate.

[0196] After mixing 36% by mass of the polyethylene-based resin composition intermediate obtained above and 64% by mass of LLDPE1, it was charged into the above-mentioned twin-screw extruder, and subjected to the second melt-kneading. The feeder was adjusted so that the temperature = 210°C, the screw speed = 200 rpm, and the discharge rate was about 3 to 5 kg / Hr, and kneaded to obtain pellets of the polyethylene-based resin composition.

[0197] The pellets were supplied to the extruder of a single-layer inflation molding machine, and the molten resin extruded from a die at 200°C at 2.5Kg / Hr was subjected to infla...

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Abstract

The present invention provides a polyethylene-based resin composition and a polyethylene-based film. According to the present invention, a polyethylene-based resin composition, a polyethylene-based resin composition, and a polyethylene Mesentery. A polyethylene resin composition, characterized in that it has 0.920~0.950g / cm 3 The density, the coefficient of dynamic friction D and the coefficient of static friction S are all 0.30 or less, and the ratio D / S of the coefficient of dynamic friction D to the coefficient of static friction S is 1.0 or less.

Description

technical field [0001] The present invention relates to a polyethylene-based resin composition and a polyethylene-based film exhibiting a low coefficient of friction. Background technique [0002] Currently, polyethylene films are used for packaging machine materials, agricultural films, and wire covering materials. Polyethylene films exhibiting high strength are used in various fields, and developments to improve film strength characteristics are currently being promoted. [0003] In particular, for agricultural films that have been used for a long time, operations such as winding up the film may occur depending on the season and environment, and at this time, frictional damage between the metal part of the winder and the film, or between the films may occur. In particular, there is a high demand for a film with high damage resistance while maintaining the transparency necessary for sunlight to be captured by plastic greenhouses. [0004] As a means for preventing abrasio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L23/06C08J5/18
CPCC08J5/18C08L23/0815C08J2323/08C08L2207/068C08L2207/062C08J2423/06C08J2423/08C08L2205/035C08L2205/025C08L23/06Y02A40/25C08J7/04B32B27/32C08L2207/066B32B2323/04B32B2323/046C08L2203/00
Inventor 河津泰幸尾形骏田中达夫
Owner ASAHI KASEI KK
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