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Resin composition, modifier, and resin composition including the modifier

A resin composition and a technology for the composition, applied in the field of resin compositions, can solve the problems of difficulty in separating each raw material and cannot be reused, and achieve the effects of excellent modification effect, excellent impact resistance and elongation at break

Pending Publication Date: 2022-02-22
TOSOH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in multilayer films and multilayer containers in which different types of plastics are laminated, it is difficult to separate each raw material, so it cannot be reused, and the current situation is to landfill or incinerate.

Method used

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  • Resin composition, modifier, and resin composition including the modifier
  • Resin composition, modifier, and resin composition including the modifier
  • Resin composition, modifier, and resin composition including the modifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] As the resin composition (A), a resin composition having the following composition was used.

[0087] [Resin composition (A)]

[0088] 65% by weight of an ethylene-vinyl acetate copolymer (a1-25) (manufactured by Tosoh Corporation; trade name ULTRASEN 640) with a vinyl acetate content of 25% by weight and a melt mass flow rate of 3 g / 10 minutes

[0089] 10% by weight of ethylene-vinyl acetate copolymer (a1-50) (manufactured by LANXESS Co., Ltd.; trade name Levapren 500) having a vinyl acetate content of 50% by weight and a melt mass flow rate of 3 g / 10 minutes

[0090] 25% by weight of an ethylene-acrylic acid copolymer (a2-9) (manufactured by SK Global Chemicals; trade name SK Primacor 5980I) with an acrylic acid content of 9 mol% and a melt mass flow rate of 300 g / 10 minutes

[0091] The above resin composition was dry-blended, and using a twin-screw extruder (manufactured by TECHNOVEL; trade name ULTnano25TW) with a screw diameter of 25 mm, melted and kneaded under ...

Embodiment 2

[0100] As the thermoplastic resin (B), a thermoplastic resin composition having the following composition was used.

[0101] [Composition of thermoplastic resin (B)]

[0102] 70% by weight of low-density polyethylene (B-1) with a melt mass flow rate of 3 g / 10 minutes and a melting point of 111° C. (manufactured by Tosoh Corporation, trade name PETROSEN 205)

[0103] 30% by weight of nylon 6 (B-5) having a melting point of 220° C. (manufactured by Ube Industries, Ltd.; trade name UBE NYLON1022D)

[0104] 80% by weight of the thermoplastic resin (B) composition was dry-blended with 20% by weight of the resin composition (A) described in Example 1, and a twin-screw extruder (manufactured by TECHNOVEL; trade name ULTnano25TW) with a screw diameter of 25 mm was used. , melted and kneaded under the conditions of a resin temperature of 230° C. and a screw rotation speed of 300 rpm to obtain a composition.

[0105] The obtained composition was molded at a pressure of 10 MPa, a heati...

Embodiment 3

[0108] As the thermoplastic resin (B), a thermoplastic resin composition having the following composition was used.

[0109] [Composition of thermoplastic resin (B)]

[0110] 70% by weight of low-density polyethylene (B-1) with a melt mass flow rate of 3 g / 10 minutes and a melting point of 111° C. (manufactured by Tosoh Corporation, trade name PETROSEN 205)

[0111] 30% by weight of polyethylene terephthalate (B-6) (manufactured by UNITIKA Co., Ltd.; MA-2103) having a melting point of 255° C.

[0112] The thermoplastic resin (B) composition was dry-blended, and melted and kneaded at a resin temperature of 270° C. and a screw speed of 150 rpm using a twin-screw extruder (manufactured by TECHNOVEL; trade name ULTnano25TW) with a screw diameter of 25 mm to obtain a thermoplastic resin. Pellets of resin (B).

[0113] 80% by weight of the obtained thermoplastic resin (B) was dry-blended with 20% by weight of the resin composition (A) described in Example 1, and a twin-screw extru...

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Abstract

An object of this invention is to provide a resin composition usable as a modifier with which the brittleness of a plastic material including a plurality of resins, such as a laminate of different kinds of materials collected for recycling, can be overcome and the impact resistance and elongation at break can be enhanced. Provided is a resin composition (A) including the following components (1) and (2): (1) a composition (a1) including at least two kinds of ethylene-vinyl acetate copolymers having different vinyl acetate contents; and (2) a copolymer (a2) that is at least one copolymer selected from an ethylene-acrylic acid copolymer and an ethylene-methacrylic acid copolymer.

Description

technical field [0001] The present invention relates to a resin composition and a molded article containing the composition. Background technique [0002] In recent years, concerns about environmental pollution caused by plastics have increased, and material recycling of plastic products has been promoted. In the recycling of plastic materials, recovered plastic waste is often melted and returned to raw material pellets, or recycled into consumable materials such as trays. At this time, if the recovered plastic waste is reused in a state where different types of plastics are mixed, the physical properties of the recycled plastics will deteriorate due to poor compatibility with each other. For this reason, currently, a process of sorting recycled plastic waste for each raw material and recycling it into a product is employed. [0003] However, in multilayer films and multilayer containers in which different types of plastics are laminated, it is difficult to separate each r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08L77/02C08L67/02C08J5/18
CPCC08L23/0853C08L23/0869C08J5/18C08L2205/025C08J2323/06C08J2423/08C08J2477/02C08J2467/02C08L23/04C08L23/0861C08L77/02C08L67/02C08L23/06C08L2205/035C08L2207/062C08L2207/066C08L2207/20
Inventor 钉本大资神谷晃基幸田真吾
Owner TOSOH CORP