JPH06220279A - Chlorinated resin composition - Google Patents

Abstract

PURPOSE:To prevent a plasticized chlorinated resin composition from suffering discoloration caused by the addition of a metal soap thereto and to prevent the plasticizer from dissolving away or evaporating, by incorporating shellac or a component thereof into the composition. CONSTITUTION:At least one member selected from aleuritic acid (a), esters thereof, a soft resin (b) (ester of the acid (a) with jalaric or laccijalaric acid), and shellac is incorporated into a chlorinated resin composition. The acid (a) and the resin (b) each is a component of shellac and can be obtained from shellac by hydrolysis or other treatment.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a chlorine-containing resin composition capable of preventing coloring caused by the addition of a metal soap as a stabilizer and preventing the elution of a plasticizer, and a coloring inhibitor for a chlorine-containing resin,
The present invention relates to a plasticizer elution inhibitor and a plasticizer anti-scattering agent.

[0002]

2. Description of the Related Art Chlorine-containing resins typified by polyvinyl chloride have various advantages such as low cost and excellent moldability, and sheets, films, various molded products, etc. Is widely used as.

However, this chlorine-containing resin has a drawback that it is deteriorated with time due to a dehydrochlorination reaction and elution of a plasticizer. Of these, deterioration due to dehydrochlorination is accelerated by heat or light, and the chlorine-containing resin molded product is colored orange or the like, resulting in a problem that the appearance is significantly impaired.

Therefore, in order to prevent this coloration, a metal soap such as zinc stearate is conventionally added as a stabilizer to the chlorine-containing resin. As this metal soap, a composite metal soap in which different kinds of metal soaps are combined is well known, and as a typical example, a zinc stearate-calcium stearate (Zn-Ca) system or the like is used.

However, when metal soap is added as a stabilizer, it is possible to prevent the above-described relatively early coloring of orange, but after a certain period of time,
It may be colored black or the like rapidly, which is a problem. Therefore, in order to solve this, it has been attempted to add polyols such as polyethylene glycol as a stabilizing aid to the chlorine-containing resin. However, polyols have not been generally used as a stabilizing aid because of their poor compatibility with chlorine-containing resins, leading to the solution of coloration due to the addition of metal soap as described above. Not in.

On the other hand, in addition to such a coloring problem, the chlorine-containing resin has a problem of deterioration due to elution and scattering of the plasticizer. In other words, a chlorine-containing resin is added with a plasticizer such as a phthalate ester to give it a wide range of flexibility and processability. It deteriorates. Further, such scattering of the plasticizer in the atmosphere is not preferable from the viewpoint of hygiene.

The present invention has been made to solve the above-mentioned problems, and is a chlorine-containing resin composition capable of preventing coloring caused by addition of metal soap and preventing elution of plasticizer and scattering into the atmosphere, An object of the present invention is to provide a coloring preventing agent for a chlorine-containing resin, a plasticizer elution preventing agent, and a plasticizer scattering preventing agent.

[0008]

SUMMARY OF THE INVENTION The invention of claim 1 for achieving the above object is summarized as a chlorine-containing resin composition containing auritic acid or an ester compound thereof.

A second aspect of the present invention is characterized by a chlorine-containing resin composition containing a soft resin which is an ester compound of alyuric acid and jalaric acid or laxjararic acid. The gist of the invention of claim 3 is a chlorine-containing resin composition containing shellac.

A fourth aspect of the present invention is a chlorine-containing resin, which comprises at least one of aurilic acid or its ester compound, a soft resin, and shellac, and prevents discoloration of the chlorine-containing resin containing metal soap. The main point is a coloring preventing agent.

The invention of claim 5 is characterized by comprising at least one kind of aurilic acid or its ester compound, a soft resin, and shellac, and preventing the elution of the plasticizer added to the chlorine-containing resin. The gist is a plasticizer elution inhibitor for chlorine resins.

The invention of claim 6 comprises at least one kind of auritic acid or its ester compound, a soft resin, and shellac, and prevents the plasticizer added to the chlorine-containing resin from scattering into the atmosphere. The gist is the characteristic plasticizer-scattering inhibitor for chlorine-containing resins.

Here, the above-mentioned aurilitic acid is represented by the following chemical formula.

[0014]

[Chemical 1]

Further, the soft resin is an ester compound of aurilic acid and jalaric acid or laxjararic acid, and is represented by the following chemical formula.

[0016]

[Chemical 2]

R = CH ₂ OH: jalaric acid R = H: laxjararic acid The above-mentioned aurilic acid and soft resin are constituent components of shellac described in detail below, and are obtained from shellac by a treatment such as hydrolysis. You can

The shellac is a natural resin obtained by purifying a resinous substance secreted by Larchu scale insects originating in India, Thailand, etc., and mainly contains a resin component which is an ester compound of many resin acids and alcohols. As an ingredient. This resin component is the above-mentioned soft resin and 1 to 4 of this soft resin.
It is said that the hard resin formed by gathering the individual pieces is the main constituent. In addition to the resin component described above, the shellac contains a wax component, a pigment component, and the like.

As described above, the shellac contains various components, and is classified into general shellac, decolorized shellac, white rack (bleached shellac), etc. according to the origin and type of the raw material, the purification method, and the like. In the present invention, any shellac is effective. When shellac is added to a transparent chlorine-containing resin, decolorizing shellac or transparent white rack is preferably used.

Examples of the chlorine-containing resin include polyvinyl chloride, copolymers of vinyl chloride and other copolymerizable monomers (vinyl chloride-ethylene copolymer, vinyl chloride-polypropylene copolymer, etc.), Examples thereof include vinylidene chloride, chlorinated polyethylene, chlorinated polypropylene and the like.

The metal soap added to the chlorine-containing resin is
Metal salts of higher fatty acids, resin acids, naphthenic acids, etc., such as zinc stearate, calcium stearate, barium stearate and the like. Only one kind of these metal soaps may be added, or two kinds of metals having different metals may be combined and added as a composite system. Examples of this combination of metals include Zn-Ca, Cd-Ba,
A combination such as Zn-Ba is effective.

Examples of the plasticizer include di-2-ethylhexyl phthalate (dioctyl phthalate: DO
And phthalates such as P).

[0023]

[Function] Deteriorated coloring of chlorine-containing resin such as PVC (coloring to orange) which occurs when metal soap is not added as a stabilizer
Dehydrochlorination (HCl) reaction occurs inside the resin, and other HCl is generated by the catalytic action of the generated HCl.
It is believed that this is because the desorption of polyene is promoted and the polyene structure grows.

When a metal soap is added to the chlorine-containing resin, it is considered that orange coloring is suppressed as follows. That is, for example, a chlorine-containing resin may include zinc stearate (abbreviated as Zn-St) and calcium stearate (C
a-St) is added first, Zn-St is added first.
There is generating a ZnCl ₂ undergoes reaction with HCl, again this ZnCl ₂ reacts with Ca-St, Zn-St
Becomes Further, Ca-St becomes CaCl ₂ , and it is considered that the de-HCl reaction is suppressed until all of the metal soap becomes metal chloride.

And when this metallic soap is added
Rapid coloring caused by excessive ZnCl₂Metal salts such as
Compound significantly accelerates desorption of HCl, and in a short time
The cause is considered to be decomposition of chlorine-containing resin.
In the present invention, aurilic acid or its esterification
Compounds selected from compound, soft resin, and shellac
Coloring by adding this metal soap
It is possible to prevent
Excellent compatibility with chlorine resin and well dispersed inside the resin
And excessively formed ZnCl ₂Metal chloride such as
The effect of masking effect on
It can be inferred that the capture rate is high.

Further, in the present invention, by adding a compound selected from aurilic acid or its ester compound, a soft resin, and shellac, the plasticizer contained in the chlorine-containing resin is eluted and scattered into the atmosphere. Can be prevented. Although the action of preventing the elution and scattering of the plasticizer is not yet clear, the effect of preventing the elution and scattering by adding these substances has been experimentally confirmed.

[0027]

EXAMPLES Examples of the present invention will be described below. Example 1 In Example 1, polyvinyl chloride (hereinafter referred to as P
Abbreviated as VC) 100 parts by weight (manufactured by Nippon Zeon Co., Ltd .;
20 parts by weight of di-2-ethylhexyl phthalate (hereinafter abbreviated as DOP) with respect to the product name: 103 EP),
2 parts by weight of zinc stearate and 1 part of calcium stearate
3 parts by weight of a composite metal soap consisting of 1 part by weight and a predetermined amount (0.4-3.
0 parts by weight) was added. Then, this mixture is heated to 160 ° C.
The mixture was kneaded for 5 minutes with an open roll (4 in × 8 in) to obtain PVC of Example 1. Commercially available reagents were used for DOP, zinc stearate and calcium stearate.

Next, from the PVC kneaded material obtained as described above, 0.5 mm (thickness) × 50 mm (width) × 70 mm (length)
The sample sheet was cut out, and the sample sheet was heated in a gear oven at 160 ° C., and the coloring state and the degree of coloring of the sample sheet by this heating were measured at 15 minute intervals up to 120 minutes.

The color degree was measured by a color computer (manufactured by Suga Test Instruments Co., Ltd .; trade name: SM-4CH).
And color analysis software (Purity I-84). That is, the reflected light was measured with a standard white plate having a light receiving diameter of 30 mm as a reflecting plate, but three different positions of the sample sheet were measured, and the average value thereof was used as the measured value. The coloring of the sample sheet is described in the previous report (J. Amer. Chem.
Soc. , 64, 2356DD (1942)),
It is displayed based on the dominant wavelength (nm) of the XYZ color system and the whiteness of the Lab color (hereinafter abbreviated as W (Lab)).

Here, FIG. 1 shows the relationship between the coloring state of the sample sheet of Example 1 and the heating time. Note that FIG. 1 is a copy of a photographed photograph of a heated sample sheet, and a substantially square sample sheet S is shown in each column. As is clear from FIG. 1, when the addition amount is 0.4 parts by weight,
By 90 minutes, almost no black spot P was generated, and the blackening phenomenon (zinc burning) due to the addition of the metallic soap did not start. That is, it was found that the sample sheet was transparent up to 75 minutes, and the onset of blackening was very slow. Furthermore, when the addition amount was 1.0 to 3.0 parts by weight, the sample sheet remained transparent and blackening hardly occurred, which was more preferable.

FIG. 2 shows the relationship between the heating time of the sample sheet of Example 1 and the dominant wavelength (nm) of the XYZ color system.
Similarly, FIG. 3 shows the relationship between the heating time and the whiteness W (Lab). As is clear from these graphs, with the addition amount of 0.4 parts by weight, the dominant wavelength (n
m) and W (Lab) do not suddenly decrease (that is, show the coloring of the sample sheet), and especially when the addition amount is 1.0 and 3.0 parts by weight, the dominant wavelength (nm) and W due to blackening of the sample sheet (La
The decrease of b) did not occur, and it was more preferable.

As described above, in Example 1, it was found that the addition of aluritic acid to PVC prevented the coloring (blackening phenomenon) due to the addition of metal soap. [Comparative Example 1] A sample sheet was also prepared for PVC (Comparative Example 1a) in which the compounding ratio of other components (DOP, metal soap) was the same as that of Example 1 except that it did not contain auritic acid. Simultaneously with Example 1, heating was performed and the state of coloring was examined. The result is shown in FIG. In addition, the degree of coloring was measured, and changes in the dominant wavelength (nm) and W (Lab) were examined.
The graphs are shown in FIGS.

Here, as is clear from FIG. 1, Comparative Example 1
In the case of a, the black spots were generated in the heating time of 45 minutes and the blackening phenomenon started, and the entire sample sheet became black in 60 minutes.
That is, it was found that the blackening was much faster than that in Example 1. Also, as is clear from the graphs of FIGS. 4 and 5,
At the heating time of 45 minutes, the dominant wavelength (nm) and W (Lab) rapidly decreased due to the blackening of the sample sheet.

As described above, Comparative Example 1a containing no alyuritic acid was not preferable as compared with Example 1 because the blackening phenomenon occurred earlier. In addition, PVC containing 1.0 part by weight of aurilic acid and 20 parts by weight of DOP but not containing the composite metal soap (referred to as Comparative Example 1b) and PVC containing only 20 parts by weight of DOP (referred to as Comparative Example 1c) are also included. , And coloring by heating was examined. The results of Comparative Examples 1b and 1c are shown in FIG.

As is apparent from FIG. 1, Comparative Examples 1b and 1c
In both cases, the coloring began to become orange in 15 minutes, and the coloring became darker as the heating time increased (the hatched lines on the sample sheet indicate that the coloring was orange, and the larger the number of hatched lines, the darker the coloring was. Shown). That is, since both Comparative Examples 1b and 1c did not contain metal soap, the blackening phenomenon did not occur.
It was not preferable because it was colored orange in a relatively early period.

Example 2 In Example 2, a soft resin was used in place of the aluritic acid of Example 1. Other implementation conditions are the same as those in the first embodiment. FIG. 6 shows the colored state of the sample sheet of Example 2. As is clear from this, when the addition amount was 0.4 part by weight, the blackening phenomenon did not occur until the heating time was 45 minutes. Further, the occurrence of blackening was delayed with an increase in the addition amount, and when the addition amount was 3.0 parts by weight, the blackening phenomenon hardly occurred, which was more preferable. 7 and 8
FIG. 7 shows a graph of the dominant wavelength (nm) and W (Lab) showing the change in the coloring degree of the sample sheet of Example 2. As is clear from these graphs, the addition amount was 0.4 parts by weight to 3.
The main wavelength (nm) and W (L
The onset of the decrease in ab) (ie the coloration of the sample sheet) was delayed and more preferred.

As described above, it was found that in Example 2 in which the soft resin was added to PVC, the occurrence of coloring (blackening phenomenon) due to the addition of metal soap can be prevented. [Comparative Example 2] A soft resin was not contained, but other components (DO
The compounding ratio of P, metal soap) is the same as in Example 2 PVC
For (Comparative Example 2a), a sample sheet was prepared in the same manner as in Example 2, and the state of coloring by heating was examined. The result is shown in FIG.

From these results, in Comparative Example 2a containing metal soap but not soft resin, blackening started earlier than in Example 2, which was not preferable. In addition, coloring by heating was also investigated for PVC (Comparative Example 2b) that contained 1.0 part by weight of the soft resin and 20 parts by weight of DOP but did not contain the composite metal soap. The result is shown in FIG. As is clear from this, in Comparative Example 2b, the coloring began to become orange in 15 minutes, and the coloring became darker as the heating time increased, which was not preferable.

[Example 3] In Example 3, decolorized shellac (manufactured by Gifu Shellac Co., Ltd .; trade name: PEARL-N811) was used in place of the aluritic acid of Example 1.
Other implementation conditions are the same as those in the first embodiment.

FIG. 9 shows the colored state of the sample sheet of Example 3. 10 and 11, the dominant wavelength (nm) and W (La
The graph of b) is shown. As is clear from these results,
Also in Example 3 in which decolorizing shellac was added to PVC,
As in Examples 1 and 2, it was found that the occurrence of coloring (blackening phenomenon) due to the addition of metal soap was prevented.

[Comparative Example 3] No decolorizing shellac was added,
The compounding ratio of the other components (DOP, metal soap) is the same as that of Example 3 (referred to as Comparative Example 3a), and contains 1.0 part by weight of shellac and 20 parts by weight of DOP, but does not include the composite metal soap. With respect to the non-PVC (referred to as Comparative Example 3b), a sample sheet was prepared in the same manner as in Example 3, and the coloring state by heating was examined. The result is shown in FIG.

From these results, it was found that in Comparative Example 3a containing metallic soap but not decolorizing shellac, blackening started earlier than in Example 3, which is not preferable. Further, in Comparative Example 3b, it began to be colored orange in 15 minutes, and the coloring became darker as the heating time increased, which was not preferable.

[Example 4] In Example 4, white rack (manufactured by Gifu Shellac Co., Ltd .; trade name: CBN-Z) was used in place of the aluritic acid of Example 1. Other implementation conditions are the same as those in the first embodiment.

FIG. 12 shows the colored state of the sample sheet of Example 4. 13 and 14 show graphs of the dominant wavelength (nm) and W (Lab) showing changes in the coloring degree of the sample sheet. As is clear from these results, also in Example 4 in which a white rack was added to PVC, it was found that the blackening phenomenon was prevented as in Examples 1 to 3.

[Comparative Example 4] PVC (Comparative Example 4a) which does not contain a white rack but the compounding ratio of other components (DOP, metal soap) is the same as that of Example 4 and a white rack of 1.0.
With respect to PVC containing 20 parts by weight of DOP and 20 parts by weight of DOP but not containing the composite metal soap (referred to as Comparative Example 4b), a sample sheet was prepared in the same manner as in Example 4, and the state of coloring by heating was examined. The result is shown in FIG.

From these results, Comparative Example 4a containing no white rack was not preferable because blackening started earlier than in Example 4. On the other hand, in Comparative Example 4b containing the white rack but not the metallic soap, it began to be colored orange in 15 minutes, and the coloring became darker as the heating time was increased, which was not preferable.

[Example 5] Next, the effect of suppressing the elution and scattering of the plasticizer when shellac was added to PVC was examined. That is, as the shellac, a decolorized shellac (manufactured by Gifu Shellac Co., Ltd .; trade name: PEARL-N811) was used, and a PVC sample sheet similar to that in Example 1 (addition amount of shellac 0.4, 1.0, 3.0 wt. 3 parts) were prepared, and this was heated at 160 ° C. for 120 minutes, and the weight change during that time was measured to determine the elution amount and the scattering amount of DOP from the sample sheet.

On the other hand, in Comparative Example 5, PVC which does not contain shellac but has the same compounding ratio of the other components (DOP, metal soap) as in Example 5 was prepared. I asked. FIG. 15 is a graph showing the relationship between the weight reduction rate (%) of the entire sample sheet and the heating time. In Comparative Example 5 in which shellac was not added, the weight loss rate reached about 15% after heating for 120 minutes.

On the other hand, Example 5 to which shellac was added had a lower weight reduction rate than Comparative Example 5, and when the addition amount increased to 3.0 parts by weight, the weight reduction rate after 120 minutes was about 10. It fell to 9%. FIG. 16 shows that DOP is the only component that elutes and scatters from the sample sheet.
It is a graph which calculated | required the weight reduction rate of OP. In Comparative Example 5, the weight reduction rate of DOP was about 80% after heating for 120 minutes.
Reached

On the other hand, Example 5 in which shellac was added
Has a lower DOP reduction rate than Comparative Example 5, and particularly when the addition amount is 3.0 parts by weight, the weight reduction rate after 120 minutes is about 45%.
Fell to. From this result, it was found that the addition of shellac to PVC prevents the elution and scattering of DOP, which is a plasticizer.

Although the embodiments have been described above, the present invention is not limited to the above embodiments and can be implemented in various modes.

[0052]

As described in detail above, the chlorine-containing resin composition of the present invention contains a compound selected from the group consisting of aluritic acid or its ester compound, a soft resin, and shellac, thereby providing a metallic soap. It is possible to prevent the coloring of the chlorine-containing resin, the elution of the plasticizer, and the scattering of the plasticizer into the atmosphere due to the addition.

The anti-coloring agent, the plasticizer elution-preventing agent and the plasticizer-scattering preventing agent according to the present invention are used for preventing coloration due to addition of a metal soap of a chlorine-containing resin, and preventing elution and scattering of the plasticizer. Has a remarkable effect.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a colored state of PVC sample sheets of Example 1 and Comparative Example 1.

FIG. 2 is a graph showing a relationship between a dominant wavelength showing a coloring degree of a PVC sample sheet of Example 1 and heating time.

FIG. 3 is a graph showing the relationship between the whiteness W (Lab) showing the coloring degree of the PVC sample sheet of Example 1 and the heating time.

FIG. 4 is a graph showing a relationship between a dominant wavelength showing a coloring degree of a PVC sample sheet of Comparative Example 1a and heating time.

FIG. 5 is a graph showing the relationship between the whiteness W (Lab) showing the coloring degree of the PVC sample sheet of Comparative Example 1a and the heating time.

FIG. 6 is an explanatory diagram showing a colored state of PVC sample sheets of Example 2 and Comparative Example 2.

FIG. 7 is a graph showing the relationship between the dominant wavelength showing the coloring degree of the PVC sample sheet of Example 2 and the heating time.

FIG. 8 is a graph showing the relationship between the whiteness W (Lab) showing the coloring degree of the PVC sample sheet of Example 2 and the heating time.

FIG. 9 is an explanatory diagram showing a colored state of PVC sample sheets of Example 3 and Comparative Example 3.

FIG. 10 is a graph showing the relationship between the dominant wavelength indicating the coloring degree of the PVC sample sheet of Example 3 and the heating time.

FIG. 11 is a graph showing the relationship between the whiteness W (Lab) showing the coloring degree of the PVC sample sheet of Example 3 and the heating time.

FIG. 12 is an explanatory diagram showing a colored state of PVC sample sheets of Example 4 and Comparative Example 4.

FIG. 13 is a graph showing a relationship between a dominant wavelength showing a coloring degree of a PVC sample sheet of Example 4 and heating time.

FIG. 14 is a graph showing the relationship between the whiteness W (Lab) showing the coloring degree of the PVC sample sheet of Example 4 and the heating time.

FIG. 15 is a graph showing the relationship between the weight reduction rate and the heating time of the PVC sample sheets of Example 5 and Comparative Example 5.

FIG. 16 is a graph showing the relationship between the DOP reduction rate and the heating time for the PVC sample sheets of Example 5 and Comparative Example 5.

[Explanation of symbols]

 S: sample sheet P: black spots

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[Procedure amendment]

[Submission date] March 17, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

However, this chlorine-containing resin has a drawback that it deteriorates with time due to a dehydrochlorination reaction. Well
In addition, the elution and dispersion of the plasticizer contained in the chlorine-containing resin
Obstacles when using food materials such as packaging films and medical materials
It is harmful. Of these, deterioration due to dehydrochlorination is accelerated by heat or light, and the chlorine-containing resin molded product is colored orange or the like, resulting in a problem that the appearance is significantly impaired.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0005

[Correction method] Change

[Correction content]

However, when metal soap is added as a stabilizer, it is possible to prevent the above-described relatively early coloring of orange, but after a certain period of time,
It may be colored black or the like rapidly, which is a problem. Therefore, in order to solve this, for example, pentaery
It is added to the chlorine-containing resin polyols such as Suritoru as a stabilizing aid has been attempted. However,
Since polyols have poor compatibility with chlorine-containing resins, they have not yet been generally used as stabilizing aids, and the above-mentioned coloring caused by the addition of metal soap has not been solved.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

On the other hand, in addition to such coloring problem, the chlorine-containing resin a problem with that by the dissolution and dispersion of a plasticizer. In other words, a chlorine-containing resin is added with a plasticizer such as a phthalate ester in order to give a wide range of flexibility and processability. However, the chlorine-containing resin is used particularly as a food or medical material.
If it does, it is not a sanitary problem to elute and scatter the plasticizer.
It

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] 0027

[Correction method] Change

[Correction content]

[0027]

EXAMPLES Examples of the present invention will be described below. Example 1 In Example 1, a general purpose polyvinyl chloride (hereinafter, abbreviated as PVC) for the 100 parts by weight, di-2-ethylhexyl phthalate (hereinafter abbreviated as DOP)
20 parts by weight, 3 parts by weight of a composite metal soap consisting of 2 parts by weight of zinc stearate and 1 part by weight of calcium stearate, and further added a predetermined amount (0.4 to 3.0 parts by weight of auritic acid) shown in FIG. Part) only. Then, this mixture was kneaded with an open roll (4 in × 8 in) at 160 ° C. for 5 minutes to obtain PVC of Example 1. In addition, DOP,
Commercially available reagents were used for zinc stearate and calcium stearate.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0047

[Correction method] Change

[Correction content]

[Embodiment 5] Next, when shellac was added to PVC, the plasticizer was eluted (dissolved on the surface of the PVC sample).
) And the effect of suppressing scattering were investigated. That is, as the shellac, decolorized shellac (manufactured by Gifu Shellac Co., Ltd .; trade name: P
PVC similar to Example 1 using EARL-N811)
Sample sheets (three types of shellac added amount 0.4, 1.0, 3.0 parts by weight) were prepared and heated at 160 ° C. for 120 minutes to measure the weight change during the measurement. The elution amount and the scattering amount of DOP were obtained.

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0050

[Correction method] Change

[Correction content]

On the other hand, Example 5 in which shellac was added
Has a lower DOP reduction rate than Comparative Example 5, and particularly when the addition amount is 3.0 parts by weight, the weight reduction rate after 120 minutes is about 45%.
Fell to. From this result, it was found that the addition of shellac to PVC prevents the elution and scattering of DOP, which is a plasticizer. [Example 6] Next, when shellac was added to PVC
The effect of suppressing the elution of the plasticizer into the liquid phase was investigated. That is,
As Example 6, decolorizing shellac (Gifu Shellac Co., Ltd.)
Manufactured; trade name: PEARL-N811) and used in Example 3
PVC sample sheet similar to
Part), and this at 160 ° C. for 60 minutes and 120 minutes
After heat treatment, each sheet was punched into a circle with a diameter of 5 mm.
It was punched out to obtain a sample piece. Then, add 3 g of this sample piece to 4
40% EtOH / H as an extraction solvent in a 0 ° C constant temperature bath
Shake extraction with ₂ O or 0.9% NaCl / H ₂ O
Then, every 5 hours up to 15 hours, to 272 nm of the extract.
Determine the DOP concentration by measuring the absorbance in
The elution amount (%) of DOP from the soybean was determined. On the other hand, a comparative example
5 does not contain shellac, but other ingredients (DOP,
The compounding ratio of metal soap is the same as in Example 6
However, the elution amount of DOP was determined by the same procedure as in Example 6.
It was In Table 1 below, 40% EtOH / H ₂ was used as an extraction solvent.
Of the extraction time and the DOP elution amount (%) when O was used
Show the relationship. Also, FIG. 17 shows this in a graph.
Of. As you can see from this result,
In Example 6, the DOP elution amount was extremely low at 1.5% or less.
It was a low value and I liked it. On the other hand, shellac
In Comparative Example 6 in which is not added, the elution amount is about 5 to 19%.
Very large and unfavorable.

[Table 1] In addition, in Table 2 below, 0.9% NaCl /
The DOP elution amount (%) when H ₂ O is used is shown. Well
FIG. 18 is a graph showing this. This conclusion
As is clear from the results, Example 6 with shellac added was D
The elution amount of OP is 0.6% or less, which is an extremely low value.
It was good. On the other hand, Comparative Example 6 containing no shellac
Then, the elution amount is very large at about 4 to 17.5%, which is preferable.
It wasn't wrong.

[Table 2] From this result, when shellac is added to PVC, a plasticizer
It was found that the dissolution of DOP, which is
It was

[Procedure Amendment 7]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 17

[Correction method] Added

[Correction content]

FIG. 17 DOP of PVC samples of Example 6 and Comparative Example 6
It is a graph which shows the relationship between an elution amount and extraction time.

[Procedure Amendment 8]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 18

[Correction method] Added

[Correction content]

FIG. 18 DOP of PVC samples of Example 6 and Comparative Example 6
It is a graph which shows the relationship between an elution amount and extraction time.

[Procedure Amendment 9]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 17

[Correction method] Added

[Correction content]

FIG. 17

[Procedure Amendment 10]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 18

[Correction method] Added

[Correction content]

FIG. 18

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location C08L 93:02) 7415-4J

Claims (6)

[Claims] 1. A chlorine-containing resin composition comprising aurilic acid or an ester compound thereof. 2. A chlorine-containing resin composition comprising a soft resin which is an ester compound of aluritic acid and jalaric acid or laxjararic acid. 3. A chlorine-containing resin composition containing shellac. 4. A color-preventing agent for chlorine-containing resin, which comprises at least one of aluritic acid or its ester compound, a soft resin, and shellac, and prevents discoloration of the chlorine-containing resin containing metal soap. 5. A plasticizer for a chlorine-containing resin, which comprises at least one of aluritic acid or its ester compound, a soft resin, and shellac, and prevents the plasticizer added to the chlorine-containing resin from being eluted. Dissolution inhibitor. 6. A chlorine-containing compound, which is composed of at least one of aurilic acid or its ester compound, a soft resin, and shellac, and prevents the plasticizer added to the chlorine-containing resin from scattering into the atmosphere. Plasticizer anti-scattering agent for resins.