Polyvinylidene chloride composition and its prepn

A technology of polyvinylidene chloride and resin composition, which is applied in the field of film formed by polyvinylidene chloride resin composition, new manufacture of polyvinylidene chloride resin composition, and resin composition for coloring, and can solve the problem of It is difficult to use, the thermal stability of the composition is reduced, and the desired coloring degree cannot be obtained, etc., to achieve the effect of suppressing coarse foreign matter and excellent adhesion

Inactive Publication Date: 2002-12-11
KUREHA KAGAKU KOGYO KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to use the masterbatch, it is also difficult to increase the concentration of the pigment, and there is also the problem of polluting the inside of the mixer
[0015] In the final process of mixing, when a large amount of aggregated particles are removed by sieving, since the glycidyl-containing (meth)acrylic resin and a large amount of pigments are removed, the thermal stability of the composition decreases, or the desired product cannot be obtained. Disadvantages such as coloring degree
[0016] Due to the above-mentioned problems, although the proposal of a glycidyl-containing (meth)acrylic resin as a heat stabilizer for PVDC resins, the actual situation is that it is difficult to adopt industrially, or for industrialization, Further research is still needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0143] The gauge pressure in the heating tank is 2.0kg / cm 2 1. Under the condition of temperature of 120° C., 100 packages obtained above were heat-pressurized and sterilized for 20 minutes, then pressurized and cooled to 25° C. while maintaining the pressure, and then opened the can and took it out from the heating can. The number of broken bodies was investigated from the sealed portion of the package, and the broken body rate was determined to be 1%. [Example 1] 1. Preparation of coloring resin composition

[0144] As shown in Table 1, the glycidyl-containing (meth)acrylic resin [glycidyl methacrylate-methyl methacrylate-styrene-butyl acrylate (30 / 31 / 31 / 8% by weight) ] 41% by weight, methyl methacrylate-butyl methacrylate copolymer 23% by weight, pigment red mixture (pigment) 25% by weight, silica (inorganic lubricant; average particle diameter 5.2 μm) 5% by weight, 3% by weight of epoxidized soybean oil, 2% by weight of aliphatic hydrocarbon oligomer (Mw=2,100), and 1% b...

Embodiment 2

[0152] When polymerizing the powder resin of PVDC (1), 0.3 parts by weight of epoxidized linseed oil (0-180) and 4.0 parts by weight of dibutyl sebacate are contained with respect to 100 parts by weight of PVDC-based resin. The ratio is adjusted. According to the order of powder resin, powder additive, liquid additive (acetyl tributyl citrate, epoxidized linseed oil and pigment) of PVDC (1), the glycidyl group-containing components in Table 2 Components other than (meth)acrylic resin are put into the paddle mixer, and the temperature is raised to about 80°C while mixing (heating mixing). After the temperature rises, it is cooled immediately, and when the temperature drops to about 65°C, it is put into the glycidyl-containing (methanol) Base) the powder of acrylic resin is mixed (mixing after heating). After cooling, obtain resin composition (mixture) after sieving with #50 mesh sieve. Except using this resin composition, other is the same as embodiment 1 Make stretched film, ...

Embodiment 3

[0154] In the polymerization of each powder resin, 2.46 parts by weight of epoxidized linseed oil (0-180) and 3.5 parts by weight of dibutyl sebacate are contained with respect to 100 parts by weight of PVDC-based resin. modulation. Use these powder resins, and press powder resin. The order of powder additives and pigments is to put glycidyl group-containing (meth)acrylic resin and EVA components in the components shown in Table 2 into the paddle mixer, and heat up to about 80°C while mixing. (warm up to mix). After heating up, it was cooled immediately, and when the temperature dropped to about 65° C., powder of a glycidyl group-containing (meth)acrylic resin was thrown in and mixed (mixing at elevated temperature). Then, EVA was mixed at normal temperature (normal temperature mixing). Using the obtained resin composition, a stretched film was produced in the same manner as in Example 1. The results are shown in Table 2.

[0155]

Composition (parts by weigh...

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Abstract

PURPOSE: A polyvinylidene chloride-based resin composition, its preparation method and a film prepared from the resin composition are provided, to improve the processability, the heat stability, the color tone, the dispersibility of a pigment, and the gas barrier properties. CONSTITUTION: The polyvinylidene chloride-based resin composition comprises 100 parts by weight of a polyvinylidene chloride-based resin; a heat stabilizer comprising 0.1-5 parts by weight of at least one epoxy compound selected from the group consisting of an epoxylated vegetable oil, an epoxylated animal oil, an epoxylated fatty acid ester and an epoxylated resin prepolymer, and 0.3-5 parts by weight of a glycidyl group-containing (meth)acryl-based resin; and optionally a pigment. Preferably the glycidyl group-containing (meth)acryl-based resin is a copolymer of 10-50 wt% of the glycidyl ester of an unsaturated organic acid capable of vinyl polymerization and 50-90 wt% of at least one kind of vinyl monomer capable of copolymerizing with the glycidyl ester.

Description

technical field [0001] The present invention relates to a polyvinylidene chloride-based resin composition, and more specifically, to a polyvinylidene chloride-based resin composition having excellent processability, thermal stability, color tone, pigment dispersibility, gas barrier properties, and the like. The polyvinylidene chloride-based resin composition of the present invention can suppress the occurrence of coarse foreign matter, pigment agglomerates, stains, etc., has a high-end color tone, and can impart airtightness, strength, and good adhesion to food Films for packaging. [0002] The present invention also relates to a novel production method of the polyvinylidene chloride-based resin composition, and a film formed by molding the polyvinylidene chloride-based resin composition. The present invention also relates to a coloring resin composition suitable for coloring polyvinylidene chloride-based resins. Background technique [0003] Polyv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08F2/44C08F220/32C08F283/10C08J3/20C08L23/08C08L27/06C08L27/08C08L33/04C08L33/12C08L63/00C09D133/12
CPCB29C55/12C08J5/18C08L23/0869C08L25/14C08L27/08C08L63/00C08L2203/16
Inventor 菅野胜彦饭塚均柴田修作
Owner KUREHA KAGAKU KOGYO KK
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