KR20180059631A - Functional masterbatch composition for engineering plastic, the masterbatch and manufacturing method of the same - Google Patents

Abstract

An embodiment of the present invention relates to a functional master batch composition for engineering plastic, comprising 100 parts by weight of a polyketone resin, and comprising 1 to 10 parts by weight of a polyolefin-based resin, 5 to 65 parts by weight of a hollow glass bubble, 5 to 30 parts by weight of an inorganic compound, 0.1 to 2 parts by weight of a lubricant, and 0.5 to 2 parts by weight of an additive on the basis of 100 parts by weight of the polyketone resin. Accordingly, the present invention provides a functional master batch composition for engineering plastic, a master batch manufactured therefrom, and a manufacturing method thereof, wherein the functional master batch composition is capable of improving strength while controlling the specific gravity of engineering plastic, reducing shrinkage rates, having excellent mixing dispersibility and processing properties of each component of the master bath composition, and contributing to maintaining mechanical properties.

Description

TECHNICAL FIELD The present invention relates to a functional masterbatch composition for engineering plastics, a masterbatch prepared therefrom, and a method for producing the masterbatch,

The present invention relates to a functional masterbatch composition for engineering plastics, a masterbatch prepared therefrom and a method for preparing the same, and more particularly to a functional masterbatch composition which can be applied to engineering plastics to impart high strength and low shrinkage, And a method for manufacturing the same.

The masterbatch refers to solid phase additives used in resin products such as plastics, rubbers or elastomers. The masterbatch generally contains a high concentration of various additive components which are poorly mixed and dispersed with the resin. By injecting such a masterbatch in the production of a resin product, it is possible to increase the mixing / dispersing property of the additive component, precisely control the metering property of the compounding agent, and prevent the deterioration of the process environment due to scattering of the additive component.

On the other hand, engineering plastics have properties that realize higher mechanical properties and heat resistance than general plastics. Typical engineering plastics include polyketone, polyamide, polyacetal, polycarbonate, polyethylene terephthalate, and modified polyphenylene oxide.

Recent engineering plastics are increasingly used. Accordingly, there is an increasing need to precisely control not only strength and elasticity but also physical properties such as impact resistance, abrasion resistance, heat resistance, cold resistance and chemical resistance, in accordance with applications in each technical field.

Accordingly, there is a demand for development of a master batch production technology capable of further improving the physical properties of engineering plastics, realizing a high metering property while using a relatively small amount, and further enhancing the mixing / dispersing property of additive components.

A related art of the present invention is Korean Patent Registration No. 10-0859028 (August 24, 2005).

It is an object of the present invention to provide an engineering plastic which can increase the strength and reduce the shrinkage rate while controlling the specific gravity of the engineering plastics and can contribute to maintaining the mechanical properties of the masterbatch composition, A functional masterbatch composition, a masterbatch prepared therefrom, and a process for producing the same.

One embodiment of the present invention is a polyketone resin composition comprising 100 parts by weight of a polyketone resin, wherein 1 to 10 parts by weight of a polyolefin resin, 5 to 65 parts by weight of a hollow glass bubble, 5 to 30 parts by weight, 0.1 to 2 parts by weight of a lubricant and 0.5 to 2 parts by weight of an additive.

The polyolefin-based resin may include polyethylene, a polyethylene derivative, a modified polyethylene, a polypropylene, a polypropylene derivative, a modified polypropylene, a polyethylene vinyl acetate, a polyethylene vinyl acetate derivative, and a modified polyethylene vinyl acetate.

The hollow glass bubble may include a soda-lime-borosilicate glass having an average particle diameter of 10 to 60 탆.

The inorganic compound may include at least one of calcium carbonate, talc, barium sulfate, mica, and fly ash.

The lubricant may include at least one of metal stearate, glycerin stearate, butyl stearate, solid paraffin, liquid paraffin, beeswax, molywax, candelilla wax, phywax, phyto wax or a mixture thereof have.

The additive may include at least one of a high temperature antioxidant, a release agent, a flame retardant, a UV stabilizer and a colorant.

The masterbatch composition may have a total specific gravity of 0.9 to 1.5.

Another embodiment of the present invention relates to a master batch which is a blend of the functional masterbatch composition for engineering plastics described above.

In still another embodiment of the present invention, there is provided a polyketone resin composition comprising 100 parts by weight of a polyketone resin, wherein 1 to 10 parts by weight of a polyolefin resin, 5 to 65 parts by weight of a hollow glass bubble, Measuring 5 to 30 parts by weight of the compound, 0.1 to 2 parts by weight of the lubricant and 0.5 to 2 parts by weight of the additive, respectively; Adding a hollow glass bubble and an inorganic compound to the kneaded material while stirring the mixture at 100 rpm to 450 rpm after charging the polyketone resin, the polyolefin resin, the lubricant and the additive into a stirrer; And injecting the kneaded material into a uniaxial extruder and melt-extruding the kneaded material at 50 ° C to 140 ° C to produce pellets; To a method for manufacturing a functional masterbatch for engineering plastics.

The hollow glass bubble may include a soda-lime-borosilicate glass having an average particle diameter of 10 to 60 탆.

The present invention relates to a functional masterbatch composition for engineered plastics which can increase the strength and reduce the shrinkage ratio while controlling the specific gravity of engineering plastics, and can contribute to maintaining the mechanical properties of each component of the masterbatch composition, , A masterbatch prepared therefrom and a method for producing the same.

1 is a flowchart showing a method of manufacturing a master vet according to an embodiment of the present invention.

One embodiment of the present invention is a polyketone resin composition comprising 100 parts by weight of a polyketone resin, wherein 1 to 10 parts by weight of a polyolefin resin, 5 to 65 parts by weight of a hollow glass bubble, 5 to 30 parts by weight, 0.1 to 2 parts by weight of a lubricant and 0.5 to 2 parts by weight of an additive.

Accordingly, it is an object of the present invention to provide a resin composition which can increase the strength and reduce the shrinkage ratio while controlling the specific gravity of the engineering plastic, and is excellent in mixing and dispersing properties and processability of each component of the masterbatch composition, To provide a masterbatch composition.

In addition, the masterbatch composition of the present invention and the masterbatch prepared therefrom can achieve particularly excellent dispersibility, specific gravity control effect and shrinkage reduction effect when applied to engineering plastics containing a polyketone series resin composition.

The masterbatch composition uses a polyketone resin as a base resin (base resin). In this case, it is possible to further improve the impact resistance, abrasion resistance, chemical resistance, flame retardancy and the like of the engineering plastic while improving compatibility with polyketone compounds used as engineering plastics.

The polyketone resin may be, for example, a resin containing a compound having a structure represented by the following formula (1) as a polymerization unit, but is not limited thereto.

[Chemical Formula 1]

In Formula 1, n and m may each be 1 to 3,000 in terms of the number of repeating units.

When the polyketone resin having the structure represented by the above-mentioned formula (1) is used, the processability upon injection or extrusion is more excellent, so that it can be used as a base resin for a master vetch.

The polyketone resin may have a melting temperature (Tm) of 150 ° C to 250 ° C. For example, 150 ° C to 230 ° C. Alternatively 180 [deg.] C to 230 [deg.] C. Within the above-mentioned range, it is possible to realize both the excellent workability and the intermediate fluidity in extrusion or injection molding, and thus both workability and impact resistance can be achieved.

The polyketone resin may have a melt flow index (MFI) of 20 g / 10 min to 200 g / 10 min at 240 캜 under a load of 2.16 kg. For example, the melt index may be from 30 g / 10 min to 90 g / 10 min. As another example, the melt index may be from 50 g / 10 min to 70 g / 10 min. Within the above range, a moderate fluidity can be realized, so that both workability and impact resistance can be achieved.

When a masterbatch is applied to an engineering plastic, the polyolefin-based resin in the masterbatch composition can achieve the effect of mixing and dispersing, controlling the specific gravity, and reducing shrinkage.

The polyolefin resin may include, for example, polyethylene, a polyethylene derivative, a modified polyethylene, a polypropylene, a polypropylene derivative, a modified polypropylene, a polyethylene vinyl acetate, a polyethylene vinyl acetate derivative, a modified polyethylene vinyl acetate and the like.

Specifically, the polyolefin-based resin may be at least one polymer or copolymer of an? -Olefin monomer, a diene monomer, a halogen-substituted? -Olefin monomer and a cyclic olefin monomer, or may be a modified polyolefin resin.

The? -olefin monomers include, for example, ethylene, propylene, isobutylene, 1-butene, 1-pentene, 1-hexene, Butene, 6-phenyl-1-hexene, 2-methyl-1-butene, 3-methyl- Pentene, 4,4-dimethyl-1-pentene, vinylcyclohexane, and the like. The? -olefin monomer may be used alone or in a mixture of two or more of the above-mentioned examples.

The diene monomers may include, for example, 1,3-butadiene, 1,4-butadiene, 1,5-hexadiene, and the like. As the diene monomer, one of the above monomers may be used alone or two or more monomers may be used in combination.

The halogen-substituted? -Olefin monomers include, for example, hexafluoropropene, tetrafluoroethylene, 2-fluoropropene, fluoroethylene, 1,1-difluoroethylene, 3-fluoropropene, Fluoroethylene or 3,4-dichloro-1-butene, and the like. The halogen-substituted? -Olefin monomers may be used singly or in a mixture of two or more of the above examples.

The cyclic olefin monomers include, for example, cyclopentene, cyclohexene, norbornene, 5-methylnorbornene, 5-ethylnorbornene, 5-propylnorbornene, 5,6-dimethylnorbornene, . ≪ / RTI > The cyclic olefin monomer may be used alone or in a mixture of two or more of the above examples.

In one embodiment, when the polyolefin-based resin is a copolymer, the arrangement of the copolymer can be used in a random form, an alternating form, a block form, or a different segment. In this case, it is advantageous to control the viscosity or physical properties of the masterbatch composition.

More specifically, the polyolefin-based resin may be an ethylene /? - olefin copolymer, an ethylene polymer, a propylene polymer or an ethylene-vinyl acetate copolymer, and in one embodiment may be an ethylene /? - olefin copolymer.

The above-mentioned " ethylene / alpha -olefin copolymer " means a polyolefin containing ethylene and an alpha -olefin in a polymerized form as a main component. Specifically, at least 50 mol% of ethylene is polymerized As a polymerization unit, an olefin monomer having three or more carbon atoms, or other comonomers, as a polymerization unit.

The ethylene /? - olefin copolymer may be, for example, a low density ethylene /? - olefin copolymer, a medium density ethylene /? - olefin copolymer, a high density ethylene /? - olefin copolymer, an ultra low density ethylene / , Ultra-low density ethylene /? - olefin copolymer, and linear low density ethylene /? - olefin copolymer, may be used alone or in combination of two or more.

The modified olefin resin may be obtained by graft-modifying the above-mentioned polyolefin-based resin with a monomer including an unsaturated group, for example, acrylic acid or acrylic ester, but is not limited thereto.

The polyolefin-based resin may be contained in an amount of 1 to 10 parts by weight based on 100 parts by weight of the polyketone resin. When the content of the polyolefin-based resin is less than 1 part by weight, the softness and elasticity of the pellets may be degraded. Conversely, when the content of the polyolefin-based resin exceeds 10 parts by weight, the original meaning of using the engineering plastic is reduced due to the decrease in the mechanical properties such as the flexural strength and the tensile strength of the engineering plastic caused by the master batch.

When the masterbatch is applied to the engineering plastic, the hollow glass bubble can reduce the shrinkage rate, reduce the weight and reduce the shrinkage ratio, thereby reducing the dimensional tolerance. When controlling the crystallization speed of the masterbatch or the engineering plastic including the masterbatch can do.

The hollow glass bubble may comprise soda-lime-borosilicate glass. In this case, the masterbatch has an excellent effect of preventing breakage of hollow glass bubbles under injection or extrusion molding conditions while realizing high strength and low specific gravity.

The hollow glass bubble may have an average particle diameter of 10 to 60 탆. For example, the hollow glass bubble may have an average particle diameter of 20 to 60 占 퐉, and other examples may be 30 to 50 占 퐉. Within the above range, the effect of improving the strength by the glass bubble is increased, and the dimensional tolerance is lowered, and the effect of preventing breakage of the glass bubble under injection or extrusion molding conditions is more excellent.

The hollow glass bubble is contained in an amount of 5 to 65 parts by weight based on 100 parts by weight of the polyketone resin. When the content of the hollow-type glass bubbles is less than 5 parts by weight, the effect of reducing the shrinkage rate due to the masterbatch is not sufficiently exhibited. On the contrary, when the content of the hollow glass bubbles is more than 65 parts by weight, it is difficult to form the masterbatch into pellets, and when it is applied to engineering plastics, coagulation and flow marks may be caused. In the process of pelletizing the masterbatch, Is high.

In one embodiment, the hollow glass bubble may be included in an amount of 5 to 50 parts by weight based on 100 parts by weight of the polyketone resin.

The inorganic compound may include at least one of calcium carbonate, talc, barium sulfate, mica, and fly ash. In this case, the hollow glass bubble can prevent the concentration gradient from occurring in the masterbatch composition due to a low specific gravity, and the shrinkage can be further reduced while effectively controlling the specific gravity when applied to engineering plastics, thereby further reducing the dimensional tolerance.

The inorganic compound may have an average particle diameter of 1 탆 to 50 탆. For example, the inorganic compound may have an average particle diameter of 1 占 퐉 to 10 占 퐉, and another example may be 1 占 퐉 to 5 占 퐉. The average particle diameter of the inorganic compound may be smaller than the average particle diameter of the glass bubble. In this case, the inorganic compound enhances the miscibility of the hollow glass bubble to prevent the concentration gradient from occurring in the masterbatch composition, and the effect of controlling the specific gravity can be further improved.

The inorganic compound may be included in an amount of 5 to 30 parts by weight based on 100 parts by weight of the polyketone resin. When the content of the inorganic compound is less than 5 parts by weight, the effect of reducing the mechanical properties and the shrinkage ratio due to the master batch is not sufficiently exhibited, and it is difficult to prevent the concentration gradient due to the low specific gravity of the hollow glass bubble. On the other hand, when the content of the inorganic compound is more than 30 parts by weight, the fluidity of the masterbatch is lowered during the production of the masterbatch, which is difficult to mold, and when applied to engineering plastics, coagulation and flow mark generation may occur.

The lubricant may include at least one of metal stearate, glycerin stearate, butyl stearate, solid paraffin, liquid paraffin, beeswax, molywax, candelilla wax, phywax, phyto wax or a mixture thereof have. In such a case, the dispersibility of the inorganic compounds exemplified above can be further improved.

The metal stearate may be, for example, magnesium stearate, zinc stearate, and the like. In this case, the shrinkage of the engineering plastic can be further reduced while improving the fluidity of the master batch.

The lubricant may be included in an amount of 0.1 to 2 parts by weight based on 100 parts by weight of the polyketone resin. When the content of the lubricant is less than 0.1 part by weight, the fluidity is lowered during the production of the masterbatch and molding is difficult. On the other hand, when the content of the lubricant is more than 2 parts by weight, the effect of improving the strength by the master batch is not sufficiently exhibited.

 The masterbatch composition may further contain various additives depending on the application, in addition to the above-mentioned components, to the extent that the object of the present invention is not impaired. For example, a high temperature antioxidant, a release agent, a flame retardant, a UV stabilizer, a colorant (pigment) functional additive or a mixture thereof may be added as the additive.

The additive is included in an amount of 0.5 to 2 parts by weight based on 100 parts by weight of the polyketone resin. In this case, it is advantageous to achieve the effect of the desired additive without deteriorating the effect of the masterbatch composition.

The masterbatch composition may have a specific gravity of 0.9 to 1.5. In such a case, in the masterbatch composition having the above-described blending ratio, it is possible to prevent the miscibility of the masterbatch from being lowered due to the low specific gravity of the hollow glass bubble.

Another embodiment of the present invention relates to a master batch which is a blend of the functional masterbatch composition for engineering plastics described above. Such a masterbatch can increase the strength and shrinkage rate while controlling the specific gravity of the engineering plastic, and is excellent in mixing dispersibility and processability of each component of the masterbatch composition, and can contribute to maintenance of mechanical properties.

Further, the master beet made of the above-mentioned functional masterbatch composition for engineering plastics has an arrangement that occurs when the movement of the polymer chains causing disordered movement of the plastic due to the melting temperature during the melting of the plastic causes volume volume increase to cool after injection or extrusion Is excellent. This allows Master Vetch to reduce the shrinkage of shrinkage-reducing engineering plastics to an excellent level.

In still another embodiment of the present invention, there is provided a polyketone resin composition comprising 100 parts by weight of a polyketone resin, wherein 1 to 10 parts by weight of a polyolefin resin, 5 to 65 parts by weight of a hollow glass bubble, Measuring 5 to 30 parts by weight of the compound, 0.1 to 2 parts by weight of the lubricant and 0.5 to 2 parts by weight of the additive, respectively; Adding a hollow glass bubble and an inorganic compound to the kneaded material while stirring the mixture at 100 rpm to 450 rpm after charging the polyketone resin, the polyolefin resin, the lubricant and the additive into a stirrer; And injecting the kneaded material into a uniaxial extruder and melt-extruding the kneaded material at 50 ° C to 140 ° C to produce pellets; To a method for manufacturing a functional masterbatch for engineering plastics.

The components used in the method for preparing the functional masterbatch for engineering plastics are as described above.

Wherein the step of weighing comprises 100 parts by weight of a polyketone resin and 1 to 10 parts by weight of a polyolefin resin based on 100 parts by weight of the polyketone resin, 5 to 65 parts by weight of a hollow glass bubble, 5 to 30 parts by weight, 0.1 to 2 parts by weight of a lubricant and 0.5 to 2 parts by weight of an additive are respectively weighed. Within the above content range, the polyolefin resin, the hollow glass bubble, the inorganic compound, the lubricant and the additive act together to increase the effect of controlling the specific gravity and reducing the shrinkage ratio.

In the step of producing the kneaded product, the polyketone resin, the polyolefin resin, the lubricant and the additive are put into a stirrer, and the hollow glass bubble and the inorganic compound are added and kneaded while stirring at 100 rpm to 450 rpm.

The stirring temperature may be, for example, from 35 캜 to 50 캜. Within this range, the polyolefin-based resin can be sufficiently coated on the lubricant, the dispersibility can be improved, and the coagulation or agglomeration of the hollow-type glass bubble and the inorganic compound can be further reduced

In the step of producing the pellets, the kneaded product is introduced into a uniaxial extruder, and melt-extruded at a temperature of 50 to 140 DEG C, followed by cutting to produce pellets. In this case, not only the compatibility is excellent, but also the dispersibility of the master batch can be further improved.

Example

Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to preferred embodiments of the present invention. It should be understood, however, that this is provided as illustrative of the present invention and is not to be construed as limiting the invention in any way.

The contents not described here are sufficiently technically inferior to those skilled in the art, and a description thereof will be omitted.

The components used in the examples of the present invention are as follows.

Polyketone resin: Hyosung Corporation, Foketon M330A

Modified polyolefin resin: duPont, Nucrel EAA (Ethylene Acrylic Acid Copolymer)

Hollow glass bubble: 3M company, IM16K

Inorganic compounds: barium sulfate (Kotz Corporation, KCB-8000), talc (Kotz Corporation, KC-2000)

Lubricants: Hansung plastic additives, Mg-st (Mg-stearate), Zn-st (Zn-stearate)

Additives: high temperature antioxidant

Example  One

The contents of the polyketone resin, the polyolefin resin, the hollow glass bubble, the inorganic compound, the lubricant and the additive were weighed as shown in the following Table 1, and then the mixture was put into a dry mixer (Henschel mixer) To prepare a master batch. At this time, the barrel of the single extruder was used in which the temperature was adjustable in six parts, and the temperature ranged from 80 ° C to 140 ° C. The extruded resin mixture was cooled in cooling water and then cut into pellets.

Example  2 to 6

Master vetch pellets were prepared in the same manner as in Example 1 except that the content of the polyketone resin, the polyolefin resin, the hollow glass bubble, the inorganic compound, the lubricant and the additives were changed as shown in Table 1 below.

(Unit: parts by weight) Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Polyketone resin 60 55 50 60 55 50 Polyolefin resin 5 5 5 5 5 5 Glass bubble 30 30 30 30 30 30 Barium sulfate 5 10 15 0 0 0 Talc 0 0 0 5 10 15 Mg-stearate 0.2 0.4 0.6 0.2 0.4 0.6 Zn-stearate 0.4 0.8 One 0.4 0.8 One High temperature anti-oxidation agent 0.5 0.5 0.5 0.5 0.5 0.5

≪ Evaluation of physical properties &

The master vetch prepared in the above example was added to the polyketone resin in the content shown in Table 2 below and the thickness was adjusted to 1 mm using an extruder set at the same temperature condition as the uniaxial hollow film molding machine whose temperature was controlled at 170 캜 to 200 캜 Injection specimen.

The specimens were measured for dispersibility, flow mark evaluation, shrinkage percentage, and the like, and are shown in Table 2 below.

(1) Evaluation method of dispersibility: An engineering plastic specimen was visually observed for the presence or absence of agglomerates to evaluate its dispersibility.

&Amp; cir & & cir &: No dispersion failure (agglomerate) was visually observed.

X: Disorientation (agglomerate) was found visually.

(2) Spiral mark evaluation: The presence or absence of flow mark was visually observed with respect to the engineering plastic specimen.

&Amp; cir &: No flow marks were found in the naked eye.

?: A flow mark having a long diameter of 30 mm or less was visually observed.

X: Flow marks with a long diameter exceeding 30 mm were visually observed.

(3) Shrinkage ratio: In the process of manufacturing specimen of engineering plastic, a constant fine line is drawn in the mold, and the specimen is injected to measure the dimensions of the mold and the dimensions of the molded product, .

[Equation 1]

Shrinkage percentage (%) = {| (S1 - S2) / S1 |} x 100

S2 is the dimension (mm) of the specimen (molded product) measured after cooling the specimen after the production of the injection specimen at room temperature (15 deg. C). In the formula (1), S1 is the dimension of the mold used for preparing the specimen.

(Parts by weight) Polyketone Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Dispersibility Flow mark Shrinkage (%) Experimental Example 1 100 2 0 0 0 0 0 ◎ ◎ 1.1 Experimental Example 2 100 4 0 0 0 0 0 ◎ ◎ 0.8 Experimental Example 3 100 0 2 0 0 0 0 ◎ ◎ 0.9 Experimental Example 4 100 0 4 0 0 0 0 ◎ ◎ 0.6 Experimental Example 5 100 0 0 2 0 0 0 ◎ ◎ 0.8 Experimental Example 6 100 0 0 4 0 0 0 ◎ ◎ 0.4 Experimental Example 7 100 0 0 0 2 0 0 ◎ ◎ 1.0 Experimental Example 8 100 0 0 0 4 0 0 ◎ ◎ 0.7 Experimental Example 9 100 0 0 0 0 2 0 ◎ ◎ 0.8 Experimental Example 10 100 0 0 0 0 4 0 ◎ ◎ 0.6 Experimental Example 11 100 0 0 0 0 0 2 ◎ ◎ 0.7 Experimental Example 12 100 0 0 0 0 0 4 ◎ ◎ 0.4 Comparative Example 1 100 0 0 0 0 0 0 - - 2.0

As can be seen from the above Table 2, the engineering plastics containing the master batch of the embodiment can reduce the shrinkage rate while controlling the specific gravity, and are excellent in mixing dispersibility and processability of each component of the master batch composition, The effect of contributing to maintenance was excellent.

On the other hand, it was confirmed that the engineering plastic of Comparative Example 1 had a large dimensional tolerance and an insufficient effect of reducing the shrinkage percentage.

Claims (10)

Based on 100 parts by weight of the polyketone resin, 1 to 10 parts by weight of a polyolefin resin, 5 to 65 parts by weight of a hollow glass bubble, 5 to 30 parts by weight of an inorganic compound, 0.1 to 2 parts by weight of a lubricant and 0.5 to 2 parts by weight of an additive.
The method according to claim 1,
Wherein the hollow glass bubble comprises soda-lime-borisilicate glass having an average particle size of 10 to 60 占 퐉.
The method according to claim 1,
Wherein the inorganic compound comprises at least one of calcium carbonate, talc, barium sulfate, mica, and fly ash.
The method according to claim 1,
The lubricant may be at least one selected from the group consisting of engineering including at least one of metal stearate, glycerine stearate, butyl stearate, solid paraffin, liquid paraffin, beeswax, moly wax, candelilla wax, Functional masterbatch composition for plastics.
The method according to claim 1,
Wherein the additive comprises at least one of a high temperature antioxidant, a release agent, a flame retardant, a UV stabilizer and a colorant.
The method according to claim 1,
Wherein the masterbatch composition has a total specific gravity of 0.9 to 1.5.
A masterbatch as a blend of the functional masterbatch composition for engineering plastics according to any one of claims 1 to 6.
Based on 100 parts by weight of the polyketone resin, 1 to 10 parts by weight of a polyolefin resin, 5 to 65 parts by weight of a hollow glass bubble, 5 to 30 parts by weight of an inorganic compound, 0.1 part by weight to 2 parts by weight of the lubricant and 0.5 parts by weight to 2 parts by weight of the additive, respectively;
Adding a hollow glass bubble and an inorganic compound to the kneaded material while stirring the mixture at 100 rpm to 450 rpm after charging the polyketone resin, the polyolefin resin, the lubricant and the additive into a stirrer; And
Adding the kneaded product to a uniaxial extruder, and melt-extruding the kneaded product at 50 ° C to 140 ° C to produce pellets; ≪ RTI ID = 0.0 > 1. ≪ / RTI >
9. The method of claim 8,
Wherein the hollow glass bubble comprises soda-lime-borisilicate glass having an average particle diameter of 10 to 60 占 퐉.
9. The method of claim 8,
Wherein the master beet has a specific gravity of 0.9 to 1.5.

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