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Vinylidene chloride resin film

A technology of vinylidene chloride and resin, which is applied in the field of vinylidene chloride-based resin film, which can solve problems such as deterioration of workability, deterioration of film running performance, interference of sealing performance, etc., and achieves the effects of excellent cold resistance and excellent adaptability to packaging machinery

Active Publication Date: 2020-10-30
KUREHA KAGAKU KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, vinylidene chloride-based resin itself is not a resin excellent in cold resistance and packaging machine suitability.
When the cold resistance is insufficient, for example, film embrittlement, breakage, and pinholes may occur
In addition, if the adaptability of the packaging machine, for example, is insufficient in sliding properties, there will be problems such as deterioration of the running properties of the film, or interference with the sealing performance during bag making, resulting in poor workability.

Method used

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  • Vinylidene chloride resin film

Examples

Experimental program
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Effect test

manufacture example

[0064] [Process 1]

[0065] A copolymer of vinylidene chloride and vinyl chloride was polymerized at a weight ratio of 81:19 by a suspension polymerization method to obtain a vinylidene chloride-based resin with a reduced viscosity of 0.062. A liquid additive (plasticizer), a powder additive (slip agent) and an AB agent are added to this vinylidene chloride-based resin, and mixed with a Henschel mixer. Thus, a mixture (resin composition containing a vinylidene chloride copolymer) was prepared. It should be noted that, as liquid additives, a total of 6.5 parts by weight of acetyl tributyl citrate, epoxidized soybean oil, and dibutyl sebacate was added. In addition, these liquid additives can also be added at the time of polymerization. In addition, as powder additives, 0.1 parts by weight of stearic acid amide and distearyl thiodipropionate were added in total. In addition, the kind of AB agent and the addition amount with respect to 100 weight part of vinylidene chloride re...

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Abstract

The vinylidene-chloride-based resin film according to the present invention contains spherical particles having an average particle diameter larger than 4 µm but not larger than 15 µm.

Description

technical field [0001] The present invention relates to a vinylidene chloride-based resin film. Background technique [0002] In general, since vinylidene chloride-based resin compositions are excellent in oxygen barrier properties and water vapor barrier properties, they are used in films and the like for packaging foods such as sausages. [0003] In a film for packaging food, a film excellent in cold resistance is required because it is packaged, transported, or stored at a low temperature. In addition, packaging machine compatibility is required as a property required when the film is processed by a packaging machine. However, vinylidene chloride-based resin itself is not a resin excellent in cold resistance and packaging machine suitability. When the cold resistance is insufficient, for example, film embrittlement, breakage, pinholes, and the like may occur. In addition, when the adaptability to packaging machines, for example, is insufficient in sliding properties, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18
CPCC08J5/18
Inventor 石井雄三平松卓也持丸智英
Owner KUREHA KAGAKU KOGYO KK