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Resin composition, and container packaging film, container packaging bag and container package using the resin composition

A technology of resin composition and packaging film, which is applied in the field of container packaging film, can solve problems such as reducing adhesion, reducing contact area, additive leakage, etc., achieves excellent heat resistance and anti-adhesion, reduces dynamic friction coefficient, improves Open mouth effect

Inactive Publication Date: 2005-04-20
SHOWA DENKO PLASTIC PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, these methods have problems in deterioration of film appearance or bleeding of additives and sticking to containers
The reason why these excellent properties can be obtained is not clear, but it is considered that by using a resin composition containing a specific polyolefin-based material, the surface is uniformly roughened and the contact area with the container is reduced, resulting in that even if substantially no Anti-blocking agent, also reduces blocking

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5 and comparative example 1-5

[0076] Using the resin composition types and mixing quantities shown in Table 1, container packaging films, container packaging bags, and container packaging were produced. The appearance and anti-blocking properties were evaluated, and the results obtained are listed in Table 1.

Embodiment 6-7

[0078] Comprising the same resin composition as the type and mixing amount of Example 1 as the sealant layer and the propylene-based polymer shown in Table 2 as the double-layer sealant film of the support layer, by using a multi-layer T-die casting machine on the Casting was performed at 230°C. See Table 2 for the evaluation of film impact.

[0079]

Propylene

polymer

(quality

%) 1)

high density

polyethylene

(quality%)

1)

Additives

(quality

share) 2)

MFR

(PP) /

MFR

(HD)

kinetic friction

Coefficient

(N / N)

film

Exterior

Anti-stick

connection

Example 1

A1(70)

B1(30)

0

15

0.28

○

○

Example 2

A1(50)

B1(50)

0

15

0.29

△

○

Example 3

A2(80)

B2(20)

0

8

...

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PUM

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Abstract

The object of the present invention is to provide a resin composition suitable for container packaging films, which film has excellent appearance and anti-blocking properties and does not cause contamination of the contents of the container. The present invention relates to a resin composition containing 40-90% by mass of propylene-based polymer and 10-60% by mass of high-density polyethylene (the total amount of propylene-based polymer and high-density polyethylene is 100% by mass), which composition is basically Without lubricants and without anti-blocking agents, the ratio between the MFR of propylene-based polymers at 230°C and the MFR of high-density polyethylene at 190°C is 5-200. The present invention also relates to container packaging films, sealant films, laminates, container packaging bags and container packaging using the resin composition of the present invention.

Description

[0001] Cross References to Related Applications [0002] This patent application is entitled under 35 U.S.C. Section 119(e)(1) to U.S. Provisional Application 60 / 350,030, filed January 23, 2002; and to Japanese Patent Application, filed December 27, 2001 under the Paris Convention Priority of patent application JP-2001-397606 and Japanese patent application JP-2002-335008 filed on November 19, 2002. technical field [0003] The present invention relates to a resin composition and a container packaging film and the like for a container packaging bag for wrapping a container filled with food or medicine. More specifically, the present invention relates to a container wrapping film capable of ensuring an excellent appearance and excellent blocking resistance between a container and a container wrapping bag after autoclaving, and to a film using the container wrapping film. Sealant films, laminates, container bags and container wrap. Background technique [0004] Containers fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/32C08J5/18C08L23/06C08L23/10C08L23/14C08L23/16C09J123/06C09J123/14
CPCB32B27/32C08J5/18C08J2323/06C08J2323/14C08L23/06C08L23/10C08L23/142C08L23/16C09J123/06C09J123/142C08L2666/06Y10T428/1352
Inventor 阴山阳平小谷政孝
Owner SHOWA DENKO PLASTIC PROD
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