Polyvinylidene chloride resin composition, tensile film and its mfg. method

A technology of polyvinylidene chloride and resin composition, which is applied in the field of stretched film, can solve unexpected problems, and achieve the effects of different orientation effects, high concealment, and excellent metallic luster

Inactive Publication Date: 2006-04-12
KUREHA KAGAKU KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, judging from the conventional technical level mentioned above, it is impossible to expect to obtain satisfactory metallic luster and appearance even if flaky metal powder is contained in PVDC-based resin with poor thermal stability and molded products such as stretched films are produced. shaped objects
In fact, until now, no one has proposed to use PVDC-based resins to form stretched films with excellent metallic luster.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0175] (1) Preparation of compounding materials

[0176] A powder resin of PVDC (2) [vinylidene chloride (VD) / vinyl chloride (VC) = 88 / 12 (weight %), reduced viscosity = 0.058] was used as the PVDC-based resin. These ratios were achieved by containing 0.3 parts by weight of epoxidized linseed oil (O-180) and 3.5 parts by weight of dibutyl sebacate relative to 100 parts by weight of PVDC-based resin during polymerization of the powder resin.

[0177]Powdered resin was charged into a blender, and 0.15 parts by weight of a lubricant (calcium montanate) was added as an additive that was solid at normal temperature. Then, 1.7 parts by weight of epoxidized linseed oil was added as a liquid additive at normal temperature. Then, add flaky aluminum powder [average particle size 14 μm, ratio (a / b) of surface direction dimension (a) to thickness direction dimension (b) = about 36, stearic acid surface treated product] 0.8 weight while heating and stirring share. After the temperature ...

Embodiment 2

[0181] Except with PVDC (1) [VD / VC=88 / 12 (weight %), reduced viscosity=0.063] 85 weight parts and PVDC (3) [VD / VC=83 / 17 (weight %), reduced viscosity= 0.052] 15 parts by weight of each powdered resin (100 parts by weight in total) instead of PVDC (2) as the PVDC-based resin was carried out in the same manner as in Example 1 to prepare a compound and then make a biaxially stretched film. The results are listed in Table 1.

Embodiment 3

[0183] Glycidyl-containing (meth)acrylic resin [GMA; glycidyl methacrylate-methyl methacrylate-styrene-butyl acrylate (30 / 31 / 31 / 8% by weight) copolymer] 1 weight part replaces lubricant 0.15 weight part as the additive of solid under normal temperature, and the addition amount of epoxy linseed oil becomes 0.7 weight part from 1.7 weight part when blending, carries out the same as embodiment 1, has prepared compounding Mixed, and then made into a biaxially stretched film. The results are listed in Table 1.

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Abstract

PROBLEM TO BE SOLVED: To provide a polyvinylidene chloride-based resin composition having good melt processability, orientation processability, thermal stability, color tone, etc., to provide a method for producing the same, to provide an oriented film having excellent metallic gloss, and to provide a method for producing the oriented film using the composition.SOLUTION: This composition comprises a polyvinylidene chloride-based resin, an additive liquid at normal temperatures, an additive solid at normal temperatures, and flaky inorganic powder. The method for producing the composition involves using the resin in the form of powder. The oriented film ≥8% in haze and ≥10 in reflectance is formed from the composition. The method for producing the oriented film using the composition is also provided.

Description

technical field [0001] The present invention relates to a polyvinylidene chloride-based resin composition containing flaky inorganic powder and having excellent melt processability, drawing processability, heat stability, color tone, and the like, and a method for producing the same. Furthermore, the present invention relates to a stretched film excellent in metallic luster formed from a polyvinylidene chloride-based resin composition containing flaky inorganic powder, and a method for producing the same. The stretched film of the present invention is suitably used as a packaging material for processed foods such as fish sausages and processed meat products. Background technique [0002] In order to obtain plastic molded articles having metallic luster, there is known a method of molding a resin composition in which metal powder is added to a thermoplastic resin. However, if a resin composition containing metal powder is used in a chlorine-containing thermoplastic resin suc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/08C08K5/00C08J5/18B29C61/06B29K27/00B29L7/00C08F2/44C08F14/08C08K7/00
CPCB29C55/02C08J5/18C08K3/08C08K5/0041C08K9/04C08K2003/0812C08L23/0853C08L27/08
Inventor 菅野胜彦饭均田中保男柴田修作
Owner KUREHA KAGAKU KOGYO KK
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