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Blow-molded container, and resin composition for blow-molded container

A resin composition, blow molding technology, applied in the direction of containers, rigid containers, flexible coverings, etc., can solve the problems of insufficient heat resistance, etc., and achieve the effect of excellent transparency and sanitation

Inactive Publication Date: 2015-03-18
HOSOKAWA YOKO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In contrast, polyethylene does not need to add additives, so although it is excellent in sanitation, it does not have sufficient heat resistance

Method used

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  • Blow-molded container, and resin composition for blow-molded container
  • Blow-molded container, and resin composition for blow-molded container

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0062] (Examples 1-4, Comparative Examples 1-11)

[0063] According to the compounding shown in Table 1, 2, (A)-(C) component was mixed, and the resin composition was obtained.

[0064] In addition, the resin used for (A)-(C)component is as follows.

[0065] (A) Component (linear low-density polyethylene)

[0066] LL1: MFR 1.0g / 10 minutes, density 910kg / m 3 , A resin produced by polymerization using a metallocene catalyst.

[0067] LL2: MFR 2.0g / 10 minutes, density 913kg / m 3 , A resin produced by polymerization using a metallocene catalyst.

[0068] LL3: MFR 4.0g / 10 minutes, density 913kg / m 3 , A resin produced by polymerization using a metallocene catalyst.

[0069] LL4: MFR 4.0g / 10 minutes, density 903kg / m 3 , A resin produced by polymerization using a metallocene catalyst.

[0070] LL5: MFR 2.0g / 10min, density 915kg / m 3 , A resin produced by polymerization using a Ziegler catalyst.

[0071] LL6: MFR 2.0g / 10 minutes, density 926kg / m 3 , A resin produced by polymer...

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Abstract

The blow-molded container of the present invention is obtained by blow-molding a resin composition containing the following components (A)-(C): (A) 78-55 parts by mass of a straight-chain low-density polyethylene having a density of 910-925kg / m3, and a melt mass flow rate of at least 1.5g / 10mins and below 3.0g / 10mins; (B) 15-25 parts by mass of a high-density polyethylene having a density of 945-970 kg / m3, and a melt mass flow rate of 1.0-3.0g / 10mins; and (C) 7-20 parts by mass of a low-density polyethylene having a density of 910-930kg / m3, and a melt mass flow rate of 0.5-8.0g / 10mins.

Description

technical field [0001] The present invention relates to a blow-molded container filled with a liquid or the like, and a resin composition for molding the blow-molded container. [0002] This application claims priority based on Japanese Patent Application No. 2012-184498 for which it applied in Japan on August 23, 2012, and uses the content here. Background technique [0003] Blow-molded containers are widely used as liquid containers for foods, cosmetics, and pharmaceuticals. [0004] Generally, blow molded containers for foods and pharmaceuticals are subjected to heat treatment for sterilization. [0005] In recent years, 121° C., which can completely kill even heat-resistant bacteria, has been recommended as a sterilization temperature for pharmaceuticals provided in the form of an aqueous solution. Therefore, heat resistance capable of withstanding heat sterilization at 121° C. is also required for containers for liquid pharmaceuticals. [0006] In addition, container...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06B29C49/00B65D1/00B65D1/02B65D65/02B29K23/00
CPCC08L23/0815B29C49/00B65D1/00C08L2207/062C08L2207/066C08L2201/08C08L2201/10C08L2205/025C08L2205/03C08L23/06Y10T428/1397C08L2201/02B65D1/40
Inventor 岩崎年晴荫山阳平小林幸雄小谷政孝宫崎宗则
Owner HOSOKAWA YOKO CO LTD