JP2003231119A - Method for regenerating used abs resin and regenerated abs resin - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for regenerating a used ABS resin. <P>SOLUTION: An ABS (acrylonitrile/butadiene/styrene) resin is separated from a used product as a simple substance or in a mixed state with another resin and a virgin ABS resin (B) and/or a separate used ABS resin (C) is compounded with the separated used ABS resin (A) to regenerate the used ABS resin (A) improved in physical properties. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a used ABS.
Regarding a method for regenerating (acrylonitrile / butadiene / styrene) resin and a regenerated ABS resin, it is preferable to add a used ABS resin with an unused or used ABS resin having physical properties having a high impact value. And a regenerated ABS resin obtained by such a method, in which the used ABS resin can be used for applications requiring the same or higher physical properties.

[0002]

ABS resins are widely used in the manufacture of inexpensive, durable products. Due to its durability, ABS resin has become a basic material in the manufacture of products such as computer housings, televisions, automobile parts and the like. With the increasing awareness of environmental protection in recent years,
In addition to metal materials that have been conventionally recycled, petrochemical products are being recycled and reused. With the development of laws and regulations such as the Recycling, Disposal Law, and Containers and Packaging Recycling Law, plastic recycling is accelerating among product groups such as large household appliances and automobiles. However, most of these recyclings are mainly thermal recycling using plastic as a heat source, or recycling for cascade use in which the deterioration of the physical properties of the regenerated plastic does not need to be noticed so much. Needless to say, ABS resin was no exception.

The above-mentioned recycling method is mainly used in the recycling of plastics because it is difficult to recycle the materials due to the deterioration of the properties of the recycled plastics during use or the deterioration of the physical properties of the recycled plastics due to the inclusion of foreign matter during the recycling and heat history. Is. However, in order to use the used plastic more effectively,
Material recycling is preferable. Therefore, various researches have been made on material recycling of plastics. The inventors of the present invention also found that by adding a different type of resin to the used resin, it is possible to prevent deterioration of the quality of the used resin or improve the quality of the used resin, and applied for a patent in advance. Wish 2001-
093981).

[0004]

As described above, the ABS is used.
Resin has overall excellent physical properties such as tensile strength, bending strength or impact strength, and is relatively inexpensive,
It is used in various fields such as home appliances. Therefore, A
BS resin is one of the resins required to be material recycled, and its recycling technology has been variously studied including a method for separating plastics. The present inventors also conducted various studies on the ABS resin recycling technology. As a result of measuring the physical properties of the recycled resin of the ABS resin and comparing it with the physical properties of the unused ABS resin, it was found that the impact strength was remarkably lowered as compared with the other physical property values. This physical property value of impact strength is the greatest feature of ABS resin, and is extremely important in selecting a resin as a raw material compared to other physical property values. That is, the ABS resin has a high impact strength, and the application in which the ABS resin is used usually requires excellent impact strength. Regarding reuse of ABS resin, if it becomes difficult to use recycled resin for applications that require high impact strength, the use of recycled ABS resin will be limited, and recycling cost will increase, resulting in material recycling of ABS resin. Not promoted. Therefore, AB
Improvement of impact strength has been an important issue in the method of regenerating S resin.

Another problem regarding the use of recycled resin is coloring of the resin. Not only when the product is used for various parts, but especially when the recycled resin is used for the same purpose (part) as the original, coloring to a desired color is required. However, in recycling the ABS resin, it was difficult to restore the physical properties such as impact strength as described above and to color the resin in a desired color. An object of the present invention is to enable reuse of a used ABS resin for the same purpose or a similar purpose where the ABS resin is used, such as an application requiring high physical properties.

[0006]

According to the present invention, a used ABS resin (A) whose impact strength is deteriorated due to use, an unused ABS resin (B) or another used ABS resin (C), preferably , A used ABS resin (A) is blended with an unused ABS resin (B) having a higher impact strength than the used ABS resin (A) or another used ABS resin (C) to recycle the used ABS resin (A). Is. The present inventors also provide an industrially advantageous coloring technique for recycling ABS resin.

That is, according to the present invention, (1) an ABS (acrylonitrile / butadiene / styrene) resin is separated from a used product alone or in a mixed state with another resin, and the separated used ABS resin (A ), Unused ABS resin (B) and / or another used ABS
A method of regenerating a used ABS resin (A), which comprises blending a resin (C) to improve physical properties, (2) from a used product, an ABS (acrylonitrile / butadiene / styrene) resin to an AS (acrylonitrile / styrene) resin ) Separation in the mixed state with resin (1)
(3) Unused ABS (acrylonitrile / butadiene / styrene) resin (B) and / or
Alternatively, another used ABS resin (C) has a higher impact resistance value than the used ABS resin (A) separated from the used product, and relates to the regeneration method according to the above (1).

The present invention also provides (4) an unused ABS.
(Acrylonitrile / butadiene / styrene) resin (B) and / or another used ABS resin (C)
Is blended so that the value of the following mathematical formula 1 is equal to or higher than the impact resistance value required for the recycled ABS resin, the reproducing method according to the above (1), the mathematical formula 1 = [used ABS resin (A) compounding ratio x used ABS resin (A) impact resistance value + unused ABS resin (B) compounding ratio x unused ABS resin (B) impact resistance value + used ABS resin (C ) Mixing ratio x Used AB
Impact resistance value of S resin (C)] (5) The value of the numerical formula 1 described in (4) above is a state where the ABS (acrylonitrile / butadiene / styrene) resin (A) separated from the used product is unused. Is 80% or more of the impact resistance value shown in (4), and (6) the value of the mathematical formula 1 described in (4) is 15 J / m or more. (4) characterized in that
The playback method described in 1.

The present invention also provides (7) an unused ABS.
(Acrylonitrile / butadiene / styrene) resin (B) and / or another used ABS resin (C)
However, the recycling method according to (1) above, which has a higher impact resistance value and a lower melt flow rate than the used ABS resin (A) separated from the used product,
(8) The recycled ABS (acrylonitrile / butadiene / styrene) resin (A) that has been separated is further blended with a pigment. (9) The recycling method according to (1) above, wherein the used product is The reproducing method according to (1) above, which is a used magnetic recording product.

The present invention also provides (10) a used ABS (acrylonitrile / butadiene / styrene) resin (A) separated from a used product as a single substance or in a mixed state with another resin. Resin (B) and /
Alternatively, another ABS resin (C) is blended with another used ABS resin (C), (11) a used ABS (acrylonitrile / butadiene / styrene) resin (A) is used (AS). / Styrene), which is an ABS resin separated in a mixed state with the resin, and the regenerated AB according to (10) above.
S resin, (12) unused ABS (acrylonitrile / butadiene / styrene) resin (B) and / or another used ABS resin (C) is more than the used ABS resin (A) separated from the used product. Also relates to the recycled ABS resin according to the above (10), which has a high impact resistance value.

The present invention also provides (13) an unused AB
S (acrylonitrile / butadiene / styrene) resin (B) and / or another used ABS resin (C)
Is blended so that the value of the following mathematical formula 1 is equal to or more than the impact resistance value required for the recycled ABS resin, the recycled ABS resin according to the above (10), mathematical formula 1 = [Ratio of used ABS (A) x used A
Impact resistance value of BS + blending ratio of unused ABS (B) x impact resistance value of unused ABS (B) + blending ratio of used ABS (C) x impact resistance value of used ABS (C)] (14 ) The value of the numerical formula 1 described in (13) is 80% or more of the impact resistance value of the used ABS (acrylonitrile / butadiene / styrene) resin (A) separated from the used product in the unused state. The regenerated ABS resin according to (13) above, (15) The value of the mathematical expression 1 according to (13) above is 15 J / m or above, (13) above. The regenerated ABS (acrylonitrile / butadiene / styrene) resin described.

The present invention also provides (16) an unused AB
S (acrylonitrile / butadiene / styrene) resin (B) and / or another used ABS resin (C)
The recycled AB according to (10) above, which has a higher impact resistance value and a lower melt flow rate than the used ABS resin (A) separated from the used product.
S resin, (17) A pigment is further added to the separated used ABS (acrylonitrile / butadiene / styrene) resin (A), and the above (1)
Recycled ABS resin according to 0), (18) Recycled ABS (acrylonitrile / butadiene / styrene) resin according to (10), wherein the used product is a used magnetic recording product, (19) Used ABS (Acrylonitrile / Butadiene / Styrene) separated from used products either alone or as a mixture with other resins
A resin molded product composed of a regenerated ABS (acrylonitrile / butadiene / styrene) resin in which an unused ABS resin (B) and / or another used ABS resin (C) is blended with the resin (A), (20) The resin molded product according to (19), which is a magnetic recording product.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION In the recycling method according to the present invention, the used ABS resin (A) is first separated from the used product. The used ABS resin (A) targeted by the present invention is not particularly limited, and examples thereof include commercially available general-purpose products, high rigidity, high impact, abrasion resistance, high sliding, heat resistance, transparency, and high gloss. ABS resins for chemical resistance and painting are included. Antistatic agents, colorants and pigments, antioxidants, flame retardants, plasticizers, light resistance accelerators, compatibilizers, surface treatment agents, modifiers and colorants (carbon black, etc.), glass in these ABS resins. Additives for various resins such as fiber, paper, unwoven cloth and the like may be contained. When the used ABS resin (A) is recycled for the same purpose as the virgin material (which means an unused resin. The same applies below), the used ABS resin (A) is a general-purpose grade. More preferably, it is an ABS resin.

In the separation of the used ABS resin (A), the ABS resin may be separated alone, but
The S resin may be separated in a mixed state with another resin. The other resin is preferably a resin having a good compatibility with ABS. As a resin that has good compatibility with ABS,
For example, AS (acrylonitrile-styrene) resin, P
C (polycarbonate), PET (polyethylene terephthalate), PVC (polyvinyl chloride), PPE (polyphenylene ether), PSF (polysulfone), PB
Examples include T (polybutylene terephthalate) and nylon. Among them, AS resin is preferable as the other resin. In a molded part or product of ABS resin, AS resin is often used as a material of a member used in a place requiring a transparent portion such as a window because of compatibility such as weldability. When considering the trouble of disassembling the welded spots and separating them during recycling, they show similar properties as well as compatibility, so used ABS with a mixture of AS resins
The resin can be used in the same manner as the used ABS resin (A). In the present specification, the “used ABS resin (A)” also includes an ABS resin mixture separated from a used product in a mixed state of the ABS resin and another resin.

The used product targeted by the present invention is not particularly limited as long as it contains an ABS resin.
For example, all resin waste materials used for electrical equipment, office equipment, vehicles, miscellaneous goods, etc. are applicable. Alternatively, it may be discharged as a runner material, a scrap material of raw material pellets, or the like in the manufacturing plant. It should be noted that many of the products generated in the factory and the collected products discharged from the standardized products (the same product or product group) have uniform physical properties, which are more preferable for recycling. Examples of standardized products include products related to recording media (video cassette shells), and more specifically, professional video cassettes, 8mm video cassettes for consumers, DV cassettes, and home game devices (controllers). ), Mobile phones, etc. Especially, in the present invention, the used product is preferably a used magnetic recording product. The magnetic recording product is not particularly limited, and examples thereof include the above video cassettes and music tape cassettes. The magnetic recording product includes not only a magnetic recording medium, but also a housing such as a case or shell for protecting it.

The used ABS resin (A) is often obtained by separating it from the used products such as the semi-finished products discharged from the factory as described above, but in terms of shape, it is discharged. It may be in the state as it is, may be crushed, or may be pelletized after melting.

The used ABS resin (A) may contain various resin additives as described above.
The S resin content is preferably 50% by weight or more. Even when the used ABS resin (A) is a mixture of ABS resin and other resins such as AS resin, the content of ABS resin is preferably 50% by weight or more.
The content of other resins such as S resin is preferably less than 50% by weight. In order to recycle the used ABS resin (A) as an ABS resin, the content of the ABS resin is preferably within the above range.

The unused ABS resin (B) or another used ABS resin (C) to be blended with the used ABS resin (A) is not particularly limited, and various resin additives such as those mentioned above can be used. It may be contained. The unused ABS resin (B) and / or another used ABS resin (C) is used AB separated from the used product.
It is particularly preferable that the impact resistance value is higher than that of the S resin (A). For example, as the unused ABS resin (B) or the used ABS resin (C), general-purpose, high rigidity, high impact,
Among the ABS resins that are commercially available as grades for abrasion resistance, high sliding, heat resistance, transparency, high gloss, chemical resistance, coating, etc.,
Examples of the ABS resin include a grade having a higher impact resistance value than the used ABS resin (A). In addition, the unused AB
The S resin (B) or the used ABS resin (C) may be a special grade that can be manufactured in a resin factory that is not commercially available. The impact resistance is AST
According to M256, it is measured under the condition with a 12.7 mm notch.

The unused ABS resin (B) and / or another used ABS resin (C) has a higher impact resistance value than the used ABS resin (A) separated from the used product, Further, it is more preferable that the melt flow rate is low. The melt flow rate is ISO-
According to 1133, it is measured under the conditions of 220 ° C. and 98N.

In the present invention, the unused ABS resin (B) and / or another used ABS resin (C) is used.
Instead of or in addition to the used ABS resin (A), a resin compatible with the ABS resin may be added. The resin may be an unused resin or a used resin. In the present invention, compatibility means
It is not limited to the state of being mixed at the molecular level, and includes a micro phase separation state. That is, the ABS resin and the resin compatible with the ABS resin may coexist microscopically.

Resins compatible with ABS resins are ABS
Examples of the resin include a monomer that constitutes Specific examples include resins having a styrene unit. Further, the resin compatible with the ABS resin may be a different resin known to be compatible with the ABS resin as described above.

The amount of the unused ABS resin (B) and / or another used ABS resin (C) added to the used ABS resin (A) is not particularly limited. But,
The physical properties of the used ABS (A) are measured, and the physical properties of the unused ABS resin (B) and / or another used ABS resin (C) are adjusted so that the physical properties required for the recycled ABS resin are obtained according to the measured values. It is preferable to determine the blending amount. As the “physical properties”, it is preferable to use impact resistance as an index.

Specifically, the unused ABS resin (B) and / or another used ABS resin (C) are used as the impact resistance value required for the regenerated ABS resin by the value of the following mathematical formula 1. It is preferable to mix them so that they are about the same or more.
Here, “about the same degree” or more means about 80% or more of the impact resistance value required for the ABS resin, preferably about 9% of the above value.
It means that it is about more than a percent. Formula 1 = [blending ratio of used ABS resin (A) x impact resistance value of used ABS resin (A) + blending ratio of unused ABS resin (B) x impact resistance value of unused ABS resin (B) + Mixing ratio of used ABS resin (C) x used AB
Impact Resistance Value of S Resin (C)] In the above formula, the impact resistance value is measured according to ASTM 256 under the condition with a 12.7 mm notch.

The impact resistance value required for the regenerated ABS resin cannot be generally stated because it depends on the use of the regenerated ABS resin.
The impact resistance value that the S resin (A) shows in an unused state can be mentioned. More specifically, the value of Equation 1 is about 15 J /
It is preferably m or more.

The amount of the unused ABS resin (B) and / or another used ABS resin (C) added to the used ABS resin (A) may be determined as described above, but is usually 1 ~ 99 wt%, preferably 1-80
About 1% to 50% by weight, from the viewpoint of effective use of resources
The degree is more desirable. The above range is preferable from the viewpoint of fully utilizing the physical property resuscitation effect of the used ABS resin (A), the effective utilization rate of resources, and the economical viewpoint.

A used ABS resin (A) may be a fresh ABS resin (B) as described above and / or another used A.
The timing of adding the BS resin (C) is not particularly limited, and the unused ABS resin (B) and / or another used ABS resin (C) as described above is added to the pulverized product of the used ABS resin (A). May be added and blended directly, or when the unused ABS resin (B) and / or another used ABS resin (C) is added at the time of kneading and melting the used ABS resin (A), and blended. You may. Used ABS
When the unused ABS resin (B) and / or another used ABS resin (C) as described above is added to the resin (A), for example, a compatibilizing agent may be further added. Furthermore, also additives for resins well known in the art, such as antistatic agents, colorants and pigments, antioxidants, flame retardants,
A plasticizer, a light resistance accelerator, a compatibilizer, a surface treatment agent, a modifier, and a reinforcing agent for various resins such as glass fiber, paper and nonwoven fabric may be added.

In the present invention, a pigment may be further added to the used ABS resin (A). The color of the used ABS resin (A) may change depending on the usage conditions, especially the color may become light. In such a case, by adding a pigment in the recycling process, a recycled ABS resin similar to a virgin material can be obtained in terms of color. In particular, when the recycled resin is used for the original purpose, that is, the same purpose as before the recycling, the above advantages are effective. The pigment is not particularly limited, and a known pigment used in the art may be used. Pigments are roughly classified into inorganic pigments and organic pigments, and more specifically, for example, titanium oxide, cadmium compounds, carbon black, azo compounds, cyanine dyes or polycyclic pigments can be mentioned.

In the present invention, a near transparent ABS resin may be added to the used ABS resin (A).
In some cases, in order to color the used ABS resin (A) to a desired color, it may be sufficient to add a pigment as described above, but it is difficult or troublesome to color the desired ABS resin by itself. In some cases. In that case, used A
Add more transparent ABS resin to BS resin (A),
By diluting the color of the used ABS resin (A), it becomes easy to color it to a desired color. Here, the near transparent ABS resin can be easily produced by a known method, and a commercially available ABS resin may be used. Specifically, as a near-transparent ABS resin, for example, the light transmittance is 30%.
As mentioned above, 50% or more of the resin is preferable. Further, in the present invention, an unused ABS resin (B) and / or another used ABS resin (C) to be blended with the used ABS resin (A) are used instead of adding a more transparent ABS resin. Alternatively, it may be a transparent ABS resin.

Used A according to the present invention described above
Since the method of recycling BS resin can be applied even if the used ABS resin (A) is recycled more than twice, it is sustainable from the viewpoint of effective use of resources and reduction of waste. It can fully contribute to the development of society. That is, the present invention enables recycling of the used ABS resin as represented by the following formula. Use- (collection-regeneration-reuse) _n -Landfill or incineration (where n is an integer of 1 or more, preferably an integer of about 1 to 7)

The recycled ABS resin obtained by the method for recycling used ABS resin according to the present invention has physical properties equal to or higher than that of virgin material, and thus can be applied to various uses. In particular, the recycled ABS resin of the present invention is preferably used as a resin molded product applied to, for example, electric equipment, office equipment, vehicles, sundries and the like. Among them, the recycled resin of the present invention is preferably used as a casing of an electric device or a shell of a magnetic recording product (for example, a professional video cassette, a consumer 8 mm video cassette, or a DV cassette).

[0031]

EXAMPLES The present invention will be further described below with reference to examples, but the present invention is not limited thereto. The following used ABS resins and ABS resins were used in carrying out this example. (A) Used ABS resin A1: Used cassette shell that is one of the components that compose a magnetic tape cassette for business use (b) Used ABS resin A2: Waste cassette material for business use (collected from broadcasting station) Shell body The ABS resin (upper and lower) is a good flow and high rigidity grade, and the window (transparent) portion of the shell is AS resin (containing 15% by weight of the total resin weight). Therefore, the used ABS resin A2 is Become. (C) ABS resin: good flow and high rigidity grade (virgin material of the above used ABS resin) (d) ABS resin: general purpose medium impact grade (e) ABS resin: general purpose high impact grade

[Example 1] Used ABS of the above (a)
50% by weight of the ABS resin (d) above is added to the resin A1,
A recycled ABS resin according to the present invention was produced. In addition, Table 1
As is clear from the above, the ABS resin (d) is a resin having higher impact resistance than the ABS resin (good flow high rigidity grade) contained in the used ABS resin A1.

[Example 2] Used ABS of the above (a)
25% by weight of the ABS resin (e) above is added to the resin A1,
A recycled ABS resin according to the present invention was produced. In addition, Table 1
As is clear from the above, the ABS resin (e) is a resin having a higher impact resistance than the ABS resin (good flow high rigidity grade) contained in the used ABS resin A1.

[Examples 3 and 4] Used A of (a) above
Used ABS of (b) above instead of BS resin A1
A regenerated ABS resin according to the present invention was produced in exactly the same manner as in Example 1 or 2 except that the resin A2 was used.

[Test Example] The ABS resins of the above (c) to (e) were used as evaluation samples, and the used ABS resin A1 of the above (a) and the used ABS resin A2 of the above (b) were used.
And the physical properties of the regenerated ABS resins produced in Examples 1 to 4 were measured. The results are shown in the table below. The measurement methods and measurement conditions for each physical property are as shown in the table below. As the physical properties of the ABS resins (c) to (e), the values described in the catalog were used.

[0036]

[Table 1]

[0037]

[Table 2]

From the results shown in Table 1, the used ABS resin containing the ABS resin of the good flow and high rigidity grade has a higher impact resistance than that of the ABS resin (general purpose medium impact grade).
By blending 50% by weight, the impact strength of the original grade (good flow high rigidity grade) ABS resin is 9
I was able to improve it to about 50%. By blending 25% by weight of the high-impact grade ABS with the used ABS resin, the impact strength is recovered to a level higher than the original grade (good flow high rigidity grade). Compared with the impact strength of resin, it can be improved up to about 90%, and it can be seen that it can be recycled into ABS resin of high grade. Further, as shown in Table 2, even in the case where the AS resin is mixed, the recovery of the impact strength is about 10% smaller than the case where only the ABS resin is used, but the recycled ABS resin obtained in Example 4 has the original grade. The impact strength was equal to or higher than that of the ABS resin (good flow and high rigidity grade), and it was found that the method of the present invention is effective.

Further, an uncolored and nearly transparent ABS resin was used as a resin to be blended with the used ABS resin, color adjustment was performed at the time of blending, and commercial cassette shell molding was carried out. As a method of color evaluation, comparison with a limit sample,
The determination was made by measuring the spectral level with a color difference meter. As a result, we were able to produce a cassette shell with no color problems.

Example 5 Used ABS of the above (a)
90% by weight of the ABS resin (b) above was added to the resin to produce a recycled resin. When the physical properties of the obtained recycled ABS resin were measured, it was necessary to add a virgin material up to 90% by weight in order to revive the original ABS resin (good flow and high rigidity grade).

[0041]

According to the present invention, it is possible to improve the physical properties of the used ABS resin which has been discharged as waste due to the deterioration of the physical properties during reprocessing. That is, since the present invention provides an effective recycling treatment technology for used ABS resin, it is possible to effectively use resources and reduce the amount of waste, and thus contribute to environmental protection of the earth.

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Haruo Watanabe             6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Soni             -Inside the corporation (72) Inventor Masahiro Sawaguchi             6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Soni             -Inside the corporation F-term (reference) 4F301 AA07 BF01 BF32                 4J002 AA003 BC063 BD033 BN15W                       BN15X CF063 CF073 CG003                       CH073 CL003 CN033 GG01                       GM00 GN00 GQ00

Claims (20)

[Claims] 1. An ABS (acrylonitrile / butadiene / styrene) resin is separated from a used product alone or in a mixed state with another resin, and the separated used AB is separated.
A method for recycling a used ABS resin (A), which comprises blending an S resin (A) with an unused ABS resin (B) and / or another used ABS resin (C) to improve physical properties. . 2. The regeneration method according to claim 1, wherein the ABS (acrylonitrile / butadiene / styrene) resin is separated from the used product in a mixed state with the AS (acrylonitrile / styrene) resin. 3. Unused ABS (acrylonitrile / butadiene / styrene) resin (B) and / or another used ABS resin (C) is more than the used ABS resin (A) separated from the used product. The reproducing method according to claim 1, which has a high impact resistance value. 4. An unused ABS (acrylonitrile / butadiene / styrene) resin (B) and / or another used ABS resin (C) is regenerated with the value of the following numerical formula 1 being AB.
The method according to claim 1, wherein the S resin is blended so as to have an impact resistance value equal to or higher than that required. Formula 1 = [blending ratio of used ABS resin (A) x impact resistance value of used ABS resin (A) + blending ratio of unused ABS resin (B) x impact resistance value of unused ABS resin (B) + Mixing ratio of used ABS resin (C) x used AB
Impact resistance value of S resin (C)] 5. The value of the numerical formula 1 according to claim 4 is 80% of the impact resistance value which the ABS (acrylonitrile / butadiene / styrene) resin (A) separated from the used product shows in an unused state. It is above, The reproduction | regeneration method of Claim 4 characterized by the above-mentioned. 6. The value of Formula 1 according to claim 4 is 15J.
/ M or more, the reproducing method according to claim 4. 7. The unused ABS (acrylonitrile / butadiene / styrene) resin (B) and / or another used ABS resin (C) is more than the used ABS resin (A) separated from the used product. 2. A high impact resistance value and a low melt flow rate.
Reproduction method described in. 8. The recycling method according to claim 1, wherein a pigment is further added to the separated used ABS (acrylonitrile / butadiene / styrene) resin (A). 9. The reproducing method according to claim 1, wherein the used product is a used magnetic recording product. 10. A used ABS (acrylonitrile / butadiene / styrene) resin (A) separated from a used product singly or in a mixed state with another resin, and an unused ABS resin (B) and / or Another used AB
Recycled A characterized by containing S resin (C)
BS resin. 11. Used ABS (acrylonitrile /
The regenerated ABS resin according to claim 10, wherein the butadiene / styrene) resin (A) is an ABS resin separated from a used product in a mixed state with an AS (acrylonitrile / styrene) resin. 12. Unused ABS (acrylonitrile /
A butadiene / styrene) resin (B) and / or another used ABS resin (C) has a higher impact resistance value than the used ABS resin (A) separated from the used product. The recycled ABS resin according to 10. 13. Unused ABS (acrylonitrile /
Butadiene / styrene) resin (B) and / or another used ABS resin (C) have regenerated A
The recycled ABS resin according to claim 10, wherein the recycled ABS resin is blended so as to have an impact resistance value equivalent to or higher than that required for the BS resin. Formula 1 = [mixing ratio of used ABS (A) x used A
Impact resistance value of BS + blending ratio of unused ABS (B) x impact resistance value of unused ABS (B) + blending ratio of used ABS (C) x impact resistance value of used ABS (C)] 14. The impact resistance value of the used ABS (acrylonitrile / butadiene / styrene) resin (A) separated from the used product in the unused state is the value of the numerical formula 1 according to claim 13. The recycled ABS resin according to claim 13, which is 80% or more. 15. The value of Expression 1 according to claim 13 is 1
The recycled ABS (acrylonitrile / butadiene / styrene) resin according to claim 13, which is 5 J / m or more. 16. Unused ABS (acrylonitrile /
Butadiene / styrene) resin (B) and / or another used ABS resin (C) has a higher impact resistance value than the used ABS resin (A) separated from the used product,
The recycled ABS resin according to claim 10, which has a low melt flow rate. 17. The regenerated ABS resin according to claim 10, wherein the separated used ABS (acrylonitrile / butadiene / styrene) resin (A) is further blended with a pigment. 18. The recycled AB according to claim 10, wherein the used product is a used magnetic recording product.
S (acrylonitrile / butadiene / styrene) resin. 19. A used ABS (acrylonitrile / butadiene / styrene) resin (A) separated from a used product singly or in a mixed state with another resin, and an unused ABS resin (B) and / or Another used AB
A resin molded product made of a recycled ABS (acrylonitrile / butadiene / styrene) resin containing S resin (C). 20. The resin molded product according to claim 19, which is a magnetic recording product.