KR101764961B1 - Transparent thermoplastic resin composition, and method for preparing theremoplastic resin - Google Patents

Abstract

The present invention relates to a transparent thermoplastic resin composition and a process for producing a transparent thermoplastic resin from the transparent thermoplastic resin composition. According to the present invention, a transparent thermoplastic resin composition excellent in stability at the time of injection and excellent in color and heat stability, There is an effect of providing a method for producing a transparent thermoplastic resin.

Description

TECHNICAL FIELD [0001] The present invention relates to a transparent thermoplastic resin composition and a transparent thermoplastic resin composition, and more particularly to a transparent thermoplastic resin composition and a transparent thermoplastic resin composition,

The present invention relates to a transparent thermoplastic resin composition and a method for producing a transparent thermoplastic resin from the transparent thermoplastic resin composition. More particularly, the present invention relates to a transparent thermoplastic resin composition excellent in stability at the time of injection and excellent in color and heat stability, And a method for producing the thermoplastic resin.

In general, ABS resins are widely used in automobile articles, home appliances, and office automation products due to styrene processability, stiffness and chemical resistance of acrylonitrile, and impact resistance and butadiene appearance properties.

However, since the ABS resin is opaque, there is a disadvantage that its use is restricted to products requiring transparency such as a transparent window for a microwave oven, a cleaner duct, a TV housing, a game machine housing, and a transparent window of an office machine.

There are SAN, PC, GPPS, PMMA, and the like as the transparent resin mainly used for products requiring transparency, but there is a problem that the impact strength and workability are lower than those of the ABS resin.

US Pat. No. 3,787,522, JP Patent Publication Nos. 1988-42940 and EP Patent 0703252 disclose rubber-reinforced thermoplastic transparent resins such as transparent ABS resins, but all of them are subject to color change upon exposure to high temperature and long- There is this bad problem.

It still can not fundamentally solve the problem that the transparent ABS resin is discolored when exposed to high temperature and stored for a long period of time, and development of related technology is still required.

In order to solve the problems of the prior art as described above, it is desired to provide a transparent thermoplastic resin composition excellent in stability at the time of injection and excellent in hue and thermal stability even when stored for a long period of time, and a process for producing the transparent thermoplastic resin .

In order to achieve the above object, the present invention provides a rubber-reinforced thermoplastic resin composition comprising A) 100 parts by weight of a rubber-reinforced thermoplastic transparent resin and B) 0.3 to 2.5 parts by weight of a styrene-based monomer, The polymer is polymerized in an amount of 20 to 70% by weight, based on the solid component, of an alkyl methacrylate monomer or an alkyl acrylate monomer, 8 to 50% by weight of an aromatic vinyl monomer, and 0 to 20% by weight of a vinyl cyan monomer To provide a transparent thermoplastic resin composition.

In this specification, "transparent" may mean that the haze value is 3 or less.

In the rubber-reinforced thermoplastic transparent resin, for example, the difference between the refractive index of the conjugated diene rubber and the refractive index of the resin composed of the remaining monomers may be 0.005 or less.

The rubber-reinforced thermoplastic transparent resin may have an average particle diameter of 600 to 5000 Å, for example.

The average particle size of the present invention is measured in the intensity mode among the number / volume / intensity modes of a laser scattering analyzer (Nicomp).

The transparent thermoplastic resin composition includes, for example, C) 20 to 75% by weight of an alkyl methacrylate monomer or an alkyl acrylate monomer, 10 to 50% by weight of an aromatic vinyl monomer, and 0 to 10% by weight of a vinyl cyan monomer And may further comprise a copolymer resin.

The C) copolymer resin may be one prepared by bulk polymerization, for example.

The difference between the refractive index of the conjugated diene rubber of the rubber-reinforced thermoplastic transparent resin and the refractive index of the C) copolymer resin may be, for example, 0.005 or less.

The content ratio of the A) rubber-reinforced thermoplastic transparent resin to the C) copolymer resin may be, for example, from 1: 9 to 6: 4.

The B) styrene-based monomer may be at least one selected from the group consisting of styrene,? -Methylstyrene, p-methylstyrene, and vinyltoluene.

The transparent thermoplastic resin composition may further include an activator.

The activator may be included in an amount of 0.3 to 2.5 parts by weight based on 100 parts by weight of the total of the resin and the monomers constituting the transparent thermoplastic resin composition.

The present invention also relates to a process for producing a latex, comprising the steps of: i) A) polymerizing a rubber-reinforced thermoplastic transparent resin, B) adding a styrene monomer to the polymer and aging the latex; And coagulating and washing the latex to obtain a dry powder; And

and ii) melt-kneading the dry powder and the C) copolymer resin to prepare a transparent thermoplastic resin composition.

As described above, according to the present invention, there is provided an effect of providing a transparent thermoplastic resin composition excellent in transparency and stability during injection, particularly excellent in hue and thermal stability even after storage for a long period of time, and a process for producing a transparent thermoplastic resin therefrom.

Hereinafter, the present invention will be described in detail.

The transparent thermoplastic resin composition of the present invention comprises A) 100 parts by weight of a rubber-reinforced thermoplastic transparent resin and B) 0.3 to 2.5 parts by weight of a styrene-based monomer, wherein the A) rubber-reinforced thermoplastic transparent resin comprises 5 to 60% (Based on solid content), 20 to 70% by weight of a methacrylic acid alkyl ester monomer or an acrylic acid alkyl ester monomer, 8 to 50% by weight of an aromatic vinyl monomer, and 0 to 20% by weight of a vinyl cyan monomer.

The A) rubber-reinforced thermoplastic transparent resin includes, for example, 5 to 50% by weight (based on solid content) of conjugated diene rubber, 30 to 70% by weight of methacrylic acid alkyl ester monomer or acrylic acid alkyl ester monomer, 10 to 40% , And 1 to 15% by weight of a vinyl cyan monomer.

As another example, the A) rubber-reinforced thermoplastic transparent resin may include 10 to 50% by weight (based on solid content) of a conjugated diene rubber, 30 to 70% by weight of a methacrylic acid alkyl ester monomer or an acrylic acid alkyl ester monomer, By weight, and 1 to 10% by weight of a vinyl cyan monomer.

As another example, the A) rubber-reinforced thermoplastic transparent resin may contain 20 to 50% by weight (based on solid content) of a conjugated diene rubber, 30 to 60% by weight of a methacrylic acid alkyl ester monomer or an acrylic acid alkyl ester monomer, By weight, and 1 to 5% by weight of a vinyl cyan monomer.

The conjugated diene rubber may be, for example, a butadiene polymer, a butadiene-styrene copolymer (SBR), a butadiene-acrylonitrile copolymer (NBR) or an ethylene-propylene copolymer (EPDM), preferably a butadiene polymer Butadiene-styrene copolymer.

Examples of the methacrylic acid alkyl ester monomer include methacrylic acid methyl ester, methacrylic acid ethyl ester, methacrylic acid propyl ester, 2-ethylhexyl methacrylate ester, methacrylic acid decyl ester and methacrylic acid lauryl ester , And it is preferably at least one selected from the group consisting of methyl methacrylate, and more preferably methyl methacrylate.

The alkyl acrylate monomer may be at least one member selected from the group consisting of methyl acrylate, ethyl acrylate, propyl acrylate, 2-ethylhexyl acrylate, decyl acrylate and lauryl acrylate, Acrylic acid methyl ester, and more preferably methyl acrylate.

The aromatic vinyl monomer may be at least one selected from the group consisting of styrene,? -Methylstyrene, p-methylstyrene and vinyltoluene, and is preferably styrene.

The vinyl cyan monomer may be, for example, acrylonitrile, methacrylonitrile or a mixture thereof.

The A) rubber-reinforced thermoplastic transparent resin may have, for example, a haze value of 10 or less, 5 or less, or 3 or less, and exhibits high temperature exposure and long-term storage stability when bound to the styrene-based monomer.

The A) rubber-reinforced thermoplastic transparent resin may contain, for example, a refractive index of the conjugated diene rubber and other monomers other than the conjugated diene rubber, and the difference in refractive index of the polymerized resin may be 0.005 or less.

As described above, when the refractive index of the conjugated diene rubber used as the core is similar to or the same as the refractive index of the whole resin of the grafted monomer component, light scattering occurs at the interface between the dispersed phase (rubber) and the continuous phase (matrix resin) And the refraction is minimized, so that the transparency is excellent.

The refractive index of the resin composed of the remaining monomers can be calculated, for example, by the following equation (1).

[Equation 1]

Refractive index of the resin = (WtA * RIA) + (WtS * RIS) + (WtM * RIM)

In the above formula (1), WtA is the weight percentage of the vinyl cyan monomer, RIA is the refractive index of the vinyl cyan polymer, WtS is the weight% of the aromatic vinyl monomer, RIS is the refractive index of the aromatic vinyl polymer, WtM is the alkyl acrylate or methacrylate alkyl ester Weight% of monomer, RIS is the refractive index of acrylic acid alkyl ester or methacrylic acid alkyl ester polymer.

For example, the refractive index of polyacrylonitrile is 1.52, the refractive index of polystyrene is 1.592, and the refractive index of polymethyl methacrylate is 1.49. These refractive indices can be measured using an Abbe refractometer as an example.

The A) rubber-reinforced thermoplastic transparent resin may have an average particle size of 600 to 5000, 1000 to 4500, 1500 to 4000, or 2500 to 3500, for example.

The method for producing the rubber-reinforced thermoplastic transparent resin (A) is not particularly limited, but may be, for example, emulsion polymerization, suspension polymerization or bulk polymerization.

As another example, the method for producing a rubber-reinforced thermoplastic transparent resin according to the present invention comprises the steps of: i) adding 20 to 70% by weight of a methacrylic acid alkyl ester monomer or an acrylic acid alkyl ester monomer to 5 to 60% by weight (based on solid content) of a conjugated diene rubber, Graft copolymerizing 8 to 50% by weight of a vinyl monomer and 0 to 20% by weight of a vinyl cyan monomer to obtain a graft copolymer in the form of a latex, and ii) coagulating, dehydrating and drying the latex to recover in dry powder form , In which case the initial equipment and manufacturing process can be simplified.

The graft copolymer may be applied with a mercaptan molecular weight modifier together with an initiator and an activator. The molar amount of the mercaptans molecular weight modifier may be 0.1 to 5.0 parts by weight based on 100 parts by weight of the sum of the rubber and the monomers constituting the step i).

The initiator may be a water-soluble initiator such as potassium persulfate or a liposoluble peroxide initiator. The initiator may be used in combination with an oxidation-reduction catalyst.

The initiator may be 0.01 to 5 parts by weight based on 100 parts by weight of the sum of the rubber and the monomers constituting the step i).

The activator may comprise, for example, a mixture of sodium sulfoxylate formaldehyde, ethylenediamine tetraacetic acid, and ferrous sulphate.

The activator may be included in an amount of 0.02 to 2.0 parts by weight, or 0.1 to 0.5 parts by weight based on 100 parts by weight of the sum of the rubber and the monomers constituting the step i).

As a specific example, the sodium sulfoxylate formaldehyde and the ethylenediamine tetraacetic acid may be contained in an amount of 0.01 to 1.0 part by weight based on 100 parts by weight of the sum of the rubber and the monomers constituting the step i), respectively, may be included in an amount of 0.001 to 0.01 part by weight based on 100 parts by weight of the sum of the rubber and the monomers constituting the step i).

The styrene-based monomer (B) may be contained in an amount of 0.3 to 2.5 parts by weight, 0.5 to 1.5 parts by weight, or 0.5 to 1.0 part by weight, for example.

The B) styrene-based monomer may be at least one selected from the group consisting of styrene,? -Methylstyrene, p-methylstyrene, and vinyltoluene.

The transparent thermoplastic resin composition includes, for example, C) 40 to 75% by weight of a methacrylic acid alkyl ester monomer or an acrylic acid alkyl ester monomer, 15 to 50% by weight of an aromatic vinyl monomer, and 0 to 10% by weight of a vinyl cyan monomer And may further comprise a copolymer resin.

Specific examples of the C) copolymer resin include 55 to 80% by weight of a methacrylic acid alkyl ester monomer or an acrylic acid alkyl ester monomer, 15 to 35% by weight of an aromatic vinyl monomer, and 1 to 10% by weight of a vinyl cyan monomer. Lt; / RTI >

Examples of the methacrylic acid alkyl ester monomer include methacrylic acid methyl ester, methacrylic acid ethyl ester, methacrylic acid propyl ester, 2-ethylhexyl methacrylate ester, methacrylic acid decyl ester and methacrylic acid lauryl ester , And it is preferably at least one selected from the group consisting of methyl methacrylate, and more preferably methyl methacrylate.

The alkyl acrylate monomer may be at least one member selected from the group consisting of methyl acrylate, ethyl acrylate, propyl acrylate, 2-ethylhexyl acrylate, decyl acrylate and lauryl acrylate, Acrylic acid methyl ester, and more preferably methyl acrylate.

The aromatic vinyl monomer may be at least one selected from the group consisting of styrene,? -Methylstyrene, p-methylstyrene and vinyltoluene, and is preferably styrene.

The vinyl cyan monomer may be, for example, acrylonitrile, methacrylonitrile or a mixture thereof.

The C) copolymer resin may be one prepared by bulk polymerization and suspension polymerization, and in this case, there is an effect of high temperature exposure and long-term storage stability

The difference between the refractive index of the conjugated diene rubber of the rubber-reinforced thermoplastic transparent resin and the refractive index of the C) copolymer resin may be 0.02 or less, 0.01 or less, or 0.005 or less, and the transparency is excellent within this range.

The content ratio of the A) rubber-reinforced thermoplastic transparent resin to the C) copolymer resin may be, for example, from 1: 9 to 9: 1, or from 2: 8 to 6: 4.

The method of producing the C) copolymer resin may be bulk polymerization or suspension polymerization, and is preferably bulk polymerization. In this case, manufacturing cost is reduced and production amount can be greatly increased.

The transparent thermoplastic resin composition may include, for example, an activator.

The transparent thermoplastic resin composition may further include, as an activator, sodium sulfoxylate sodium formaldehyde, ethylenediamine tetraacetic acid, and iron sulfide, for example.

The transparent thermoplastic resin composition may further include at least one additive selected from the group consisting of a UV stabilizer, a fluorescent whitening agent, a lubricant and the like within a range not adversely affecting physical properties.

The additive may be included in an amount of 0.001 to 10 parts by weight, 0.01 to 1.0 part by weight, or 0.1 to 0.5 part by weight based on 100 parts by weight of the total of the A) rubber-reinforced thermoplastic transparent resin and the C) copolymer resin.

The transparent thermoplastic resin composition may have a haze value of 10 or less, 5 or less, or 3 or less, for example.

The transparent thermoplastic resin composition includes, for example, i) A) preparing a latex by polymerizing a rubber-reinforced thermoplastic transparent resin, adding B) a styrene monomer to the polymer, and aging the polymer; And coagulating and washing the latex to obtain a dry powder; ii) melt-kneading the dry powder and the C) copolymer resin to prepare a transparent thermoplastic resin composition.

For example, the B) styrene-based monomer may be added before the polymerization (latex state) of the A) rubber-reinforced thermoplastic transparent resin immediately after polymerization.

As another example, the styrene-based monomer (B) may be added immediately after the polymerization of the rubber-reinforced thermoplastic transparent resin is completed and the reaction is continued for 30 minutes to 1 hour after completion of the continuous addition of the activator.

The melt-kneading can be performed by using a single-screw extruder, a biaxial extruder, a Banbury mixer, or the like.

The molded article of the present invention is characterized by being produced from the transparent thermoplastic resin composition.

The molded article may be, for example, an injection molded article.

As another example, the molded article may be a transparent window of a microwave transparent window, a cleaner duct, a TV housing, a game machine housing, or an office equipment.

For example, the molded product may be obtained by melt-kneading the transparent thermoplastic resin composition of the present invention with an extruder to form pellets; And injecting the produced pellets to produce a molded article.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention within the scope and spirit of the following claims, Such variations and modifications are intended to be within the scope of the appended claims.

[Example]

Production Example A-1: Thermoplastic Graft Transparent Resin-1

≪ Preparation of ABS graft resin >

100 parts by weight of ion-exchanged water, 1.0 part by weight of sodium oleate emulsifier, and 50 parts by weight of methyl methacrylate (manufactured by Nippon Aerosil Co., Ltd.) were added to 50 parts by weight (based on solid content) of a butadiene rubber latex having an average particle size of 0.3 m and a refractive index of 1.517, 12 parts by weight of styrene, 3 parts by weight of acrylonitrile, 0.5 part by weight of tertiary dodecylmercaptan, 0.048 part by weight of sodium sulfoxylate formaldehyde, 0.012 part by weight of ethylenediamine tetraacetic acid, 0.001 part by weight of iron and 0.08 part by weight of cumene hydroperoxide as an initiator were continuously and continuously reacted at 70 DEG C for 4 hours.

After the reaction for 30 minutes, 1.0 part by weight of styrene was further added, the temperature was raised to 80 DEG C, and the reaction was terminated by aging for 1 hour. At this time, the polymerization conversion was 98.0%, and the solid solid content in latex was 0.3%. The latex was then coagulated with an aqueous solution of calcium chloride and washed to prepare thermoplastic transparent resin-1 in powder form.

For reference, the above-described gel content, average particle diameter and refractive index are values measured in the following manner.

* Gel content: The rubber latex was solidified with methanol, washed, dried in a vacuum oven at 60 ° C for 24 hours, and then the resulting rubber was cut into pieces with scissors. One gram of the rubber piece was placed in 100 g of toluene, After storage in the dark room, separate into sol and gel, and measure the gel content according to the following formula.

Gel content (%) = weight of insoluble matter (gel) / sample weight * 100

* Average particle size: The average particle size of the latex is the intensity mode of the number / volume / intensity mode of the Laser Scattering Analyzer (Nicomp).

Refractive index: Measured using an Abbe refractometer.

≪ Preparation of MSA copolymer resin >

A raw material obtained by mixing 70 parts by weight of methyl methacrylate, 23 parts by weight of styrene, 7 parts by weight of acrylonitrile, 30 parts by weight of toluene as a solvent and 0.15 part by weight of tertiary dodecyl mercaptan as a molecular weight adjusting agent, The reaction temperature was maintained at 148 占 폚 while being continuously introduced into the reactor so as to be time-consuming. Thereafter, the polymerization solution was discharged from the reaction tank, the discharged polymerization solution was heated in a preliminary heating tank, the unreacted monomers were volatilized in the volatilization tank, and the temperature of the polymer was maintained at 210 캜, MSA copolymer resin in the form of pellets.

The refractive index of the prepared MSA copolymer resin was 1.517. (Thus, the refractive index difference with the butadiene rubber = 0).

Production Example A-2: Thermoplastic Graft Transparent Resin-2

The same steps as in Production Example 1 were repeated except that the reaction was replaced with a reaction for one hour for 30 minutes and a reaction was conducted after 0.5 part by weight of styrene was added in the step of < Preparation of ABS graft resin> Thereby preparing a transparent resin-2.

Production Example A-3: Thermoplastic Graft Transparent Resin-3

< Preparation of ABS Grafted Resin> In Preparation Example 1, after 30 minutes of reaction, 1.0 part by weight of styrene was added thereto, 0.0024 part by weight of sodium sulfoxylate formaldehyde, 0.0006 part by weight of ethylenediamine tetraacetic acid, The same processes as in Production Example 1 were repeated except that 0.00005 parts by weight of ferrous iron was further used to prepare thermoplastic transparent resin-3.

Production Example A-4: Thermoplastic Graft Transparent Resin-4

The same steps as in Production Example 1 were repeated except that the reaction for 30 minutes was replaced with the reaction for 1 hour in the < Preparation of ABS graft resin > in Production Example 1, and 0.5 part by weight of alpha methylstyrene was added after the reaction To prepare a thermoplastic transparent resin-4.

Production Example A-5: Thermoplastic Graft Transparent Resin-5

The same procedure as in Production Example 1 was repeated except that the styrene was not added after the reaction for 30 minutes in the < preparation of ABS graft resin > in Production Example 1 to prepare thermoplastic transparent resin-5.

Production Example A-6: Thermoplastic Graft Transparent Resin-6

The same processes as in Production Example 1 were repeated except that 3.0 parts by weight of styrene was added after the reaction for 30 minutes in the production of the ABS graft resin of Production Example 1 to prepare thermoplastic transparent resin-6.

Production Example A-7: Thermoplastic Graft Transparent Resin-7

The same procedure as in Production Example 1 was repeated except that 0.2 part by weight of styrene was added after the reaction for 30 minutes in the production of the ABS graft resin of Production Example 1 to prepare thermoplastic transparent resin-7.

Production Example A-8: Thermoplastic Graft Transparent Resin-7

The same procedure as in Production Example 1 was repeated except that 1.0 part by weight of styrene was added after 120 minutes of reaction in the production of ABS graft resin of Production Example 1 to prepare thermoplastic transparent resin-7.

Examples 1-4 and Comparative Examples 1-4

&Lt; Preparation of thermoplastic transparent resin composition >

30 parts by weight of the six kinds of thermoplastic transparent resins obtained above, 70 parts by weight of the MSA copolymer resin, 0.2 parts by weight of the antioxidant and 0.3 part by weight of the lubricant were charged and heated at a cylinder temperature of 220 캜 using a twin screw extruding kneader to obtain a thermoplastic transparent resin Pellet form.

<Injection Molding>

The pellet was injected to prepare a 3 mm sheet specimen.

[Test Example]

The properties of the transparent thermoplastic resin composition samples prepared in Examples 1 to 4 and Comparative Examples 1 to 4 were measured by the following methods, and the results are shown in Table 1 below.

Haze Value: Measured by the ASTM 1003 method.

* Color (Hunter Lab): Hunter Lab value was measured with Color Quest II.

* Long-term storage test: The pellet manufactured as shown in Table 1 was stored in the dark room, and after 6 months, the color value was measured and ΔE (long-term storage stability) was calculated as follows.

DELTA E (long term storage) = (L-L ') 2+ (a-a') 2+ (b-

L, a, b = color value measured immediately after extrusion

L ', a', b '= color value measured after 6 months storage

* Injection retention test: Transparent ABS resin was retained in injection molding machine at 240 캜 during injection molding for 10 minutes and then injected to measure color value, and ΔE value was calculated as follows.

? E (injection stays) = (L-L) 2+ (a-a) 2+ (b-b)

L, a, b = color value measured immediately after extrusion

L ", a", b "= color value measured after 1 week storage

As shown in Table 1 above, the transparent thermoplastic resin compositions (Examples 1 to 4) of the present invention had? E of 1 or less for 6 months of long-term storage,? E of 2.5 or less , Long-term storage and high-temperature exposure storage stability.

However, it was confirmed that the transparent thermoplastic resin compositions (Comparative Examples 1 to 4) which did not contain the addition-added styrene-based monomer or which used too little or too much amount were all inferior in long-term storage and high-temperature exposure storage stability. In addition, the thermoplastic resin composition (Comparative Example 4) charged after 120 minutes after the continuous introduction of the activator had poor long-term storage stability and injection residence stability.

Claims (18)

delete delete delete delete delete delete delete delete delete delete i) 5 to 60% by weight of a conjugated diene rubber, 20 to 70% by weight of a methacrylic acid alkyl ester monomer or an acrylic acid alkyl ester monomer, 8 to 50% by weight of an aromatic vinyl monomer and 0 to 20% by weight of a vinyl cyan monomer And B) the styrene-based monomer alone is reacted with the conjugated diene-based rubber, the methacrylic acid alkyl ester monomer or the acrylic acid alkyl ester monomer, the aromatic vinyl monomer 0.3 to 2.5 parts by weight based on 100 parts by weight of the total of the monomer, the vinyl cyan monomer and the vinyl cyan monomer is added thereto, and the polymerization reaction is completed to prepare a latex; And coagulating and washing the latex to obtain a rubber-reinforced thermoplastic transparent resin as a dry powder; And
ii) melt-kneading the dry powder and the C) copolymer resin to prepare a transparent thermoplastic resin composition.
delete delete 12. The method of claim 11,
The C) copolymer resin is a copolymer obtained by polymerizing 40 to 75% by weight of a methacrylic acid alkyl ester monomer or an acrylic acid alkyl ester monomer, 15 to 50% by weight of an aromatic vinyl monomer, and 0 to 10% by weight of a vinyl cyan monomer Wherein the transparent thermoplastic resin composition is a transparent thermoplastic resin composition.
12. The method of claim 11,
Wherein the activator is 0.02 to 2.0 parts by weight per 100 parts by weight of the total of the conjugated diene rubber, the methacrylic acid alkyl ester monomer or the acrylic acid alkyl ester monomer, the aromatic vinyl monomer, and the vinyl cyan monomer. Gt;
12. The method of claim 11,
Wherein the A) rubber-reinforced thermoplastic transparent resin has a haze value measured according to ASTM 1003 measurement method of 3 or less.
12. The method of claim 11,
Wherein the A) rubber-reinforced thermoplastic transparent resin has an average particle size of 600 to 5000 angstroms.
12. The method of claim 11,
Wherein the activator comprises sodium sulfoxylate formaldehyde, ethylenediamine tetraacetic acid, and ferrous sulphate.