WO2012091236A1 - Preparation method of polyamide/ionomer blend resin composition capable of mic with improved scratch resistance, and reaction product prepared thereby - Google Patents

Abstract

The present invention relates to a method for preparing a polyamide/ionomer blend resin composition capable of MIC with improved scratch resistance which uses a polyamide/ionomer blend mixture having gloss and excellent stiffness and impact resistance as a main component and comprises a metallic master batch and a slipping agent, and a reaction product prepared by the method. The blend resin composition and the reaction product thereof of the present invention have high gloss similar to a painted article and have excellent stiffness, impact resistance and scratch resistance, and thus can be applied to a bumper material of automobiles without a painting process, and can be usefully applied to an exterior material of various transport equipment, electrical home appliances, computer equipment, communication equipment, portable electronic products and the like, and a material for various industrial equipment and construction such as a decoration material for construction and the like, requiring high gloss.

Description

Method for preparing polyamide / ionomer blend resin composition capable of MIC with improved scratch resistance and reaction product prepared therefrom

The present invention is a polyamide / ionomer blend which has a gloss, a polyamide / ionomer blend mixture having excellent stiffness and impact resistance as a main component, and includes a metallic master batch and a slip agent to improve scratch resistance and enable MIC. It relates to a method for producing a resin composition and a reaction product produced by the method.

The demand for plastic materials used as automotive parts in the automotive field is continuously increasing as the weight reduction and high performance of the materials are required.

Exterior parts of automobile components require proper impact resistance and rigidity in consideration of the safety of passengers in case of accidents and collisions, dimensional stability is required in consideration of assemblability, and changes in appearance and discoloration due to ultraviolet rays as they are exposed to the outside. There should be no.

When the polyolefin resin composition is applied to an exterior part, a primer coating process that artificially imparts a polar group due to the lack of polarity of the resin itself is essential, and this is why polyolefin is developed when developing a material for an automotive part that pursues cost reduction and process simplification. It is a problem to apply the resin.

The exterior parts of a conventional automobile are completed through a coating process including a pretreatment process and a primer coating process after injection molding, which is costly and difficult to recycle after coating.

The polyamide and ionomer blends disclosed in U.S. Patent Nos. 3,845,163, 5,866,658, and 5,091,478 have excellent gloss, weather resistance, and high impact properties, such as injection molding such as automotive bumpers and exterior parts. It can be applied to injection moldings such as beauty panels.

Moreover, as a method of simplifying a coating process, the method of modifying and applying a pigment component and a pigment dispersant (Japanese Unexamined-Japanese-Patent No. 01-308441, 02-255842, 04-007363, 02-014747, Japanese Patent Application Laid-Open No. 60-152543, a method of improving the coating adhesion by improving the production method of resin (Japanese Patent Application Laid-Open No. H01-301748), and a method by changing the composition of the resin (Japanese Patent Application Laid-Open No. 60-152543, 62-084142) and the like, but not all of the same glossiness and scratch resistance as those of the coated product can be obtained.

 In addition, Japanese Patent Application Laid-Open No. 05-032885 proposes a resin composition having excellent UV (ultraviolet) stability by applying modified polypropylene while blending polypropylene to polyamide to improve impact resistance and paint adhesion. This also did not omit the painting process.

The problem to be solved by the present invention is a polyamide / ionomer to improve the scratch resistance while allowing the reaction product made of a polyamide / ionomer blend resin composition to be MIC (molded-in-color) to omit the coating process It is to provide a method for producing a blend resin composition and a reaction product prepared therefrom.

In order to achieve the above object, the present invention is 5 to 95% by weight of at least one acrylic acid polymer selected from the group consisting of oligomers, prepolymers and polymers having an anion component of 5% or more, 95 to 5% by weight of a polyamide resin, A polyamide / ionomer blend mixture is prepared by mixing 1 to 50 pph of metal cations based on the weight of the acrylic acid polymer and 0.1 to 5.0 parts by weight of slip agent based on 100 parts by weight of the mixture of the acrylic acid polymer, polyamide resin and metal cation. step; Preparing a metallic master batch consisting of 15-40% by weight of metal pigments, 10-40% by weight of organic and inorganic pigments and 20-75% by weight of the polyamide / ionomer blend mixture; And mixing 0.1-10 pph of the metallic master batch to 100 parts by weight of the polyamide / ionomer blend mixture. Provides a method of preparing a polyamide / ionomer blend resin composition capable of improving MIC scratch resistance.

In addition, the resin composition produced by the above method provides a reaction product applied to at least one selected from the group consisting of exterior materials and building decoration materials of transportation equipment, home appliances, computer equipment, communication equipment and portable electronic devices.

The blend resin composition and the reaction products thereof according to the present invention have a high glossiness similar to that of the coated product, and are excellent in rigidity, impact resistance and scratch resistance, and can be applied to a bumper material of a vehicle without a coating process, and other high gloss. It can be usefully applied to various industrial equipment and building materials such as exterior materials such as various transport equipment, home appliances, computer equipment, communication equipment, portable electronic products, and building decoration materials required.

The present invention is 5 to 95% by weight of at least one acrylic acid polymer selected from the group consisting of oligomers, prepolymers and polymers having an anion component of 5% or more, 95 to 5% by weight polyamide resin, based on the weight of the acrylic acid polymer Preparing a polyamide / ionomer blend mixture by mixing 1 to 50 pph of a metal cation and 0.1 to 5.0 parts by weight of a slip agent based on 100 parts by weight of the mixture of the acrylic acid polymer, the polyamide resin, and the metal cation; Preparing a metallic master batch consisting of 15-40% by weight of metal pigments, 10-40% by weight of organic and inorganic pigments and 20-75% by weight of the polyamide / ionomer blend mixture; And mixing 0.1-10 pph of the metallic master batch to 100 parts by weight of the polyamide / ionomer blend mixture.

Pseudo-crosslinking formed by in-situ when a copolymer or copolymer of ethylene (meth) acrylic acid, a prepolymer of polyamide and ionomer, and a metal cation capable of forming an anionic group are mixed and melted As the network is formed, the polyamide is given ionic properties, or the additional properties of the polyamide are imparted into the ionic structure.

 By mixing a slip agent and pigments (metal, organic, inorganic) with these resins, a polyamide / ionomer blend resin composition capable of MIC with improved scratch resistance is produced.

The (meth) crylic acid refers to acrylic acid or methacrylic acid.

The method for producing a resin composition composed of the above constituents may include melt-processing a polyamide, an acidic polymer and a metal cation after dry mixing; Dry mixing and mixing the polyamide and the functional resin, followed by dry mixing and mixing the metal cations into the melt-processed composition; Dry mixing and mixing the functional resin and the metal cation with the polyamide to the melt-processed composition, followed by melt processing; Polyamide, functional resin and metal cation master batches are dry mixed and then melt processed; A polyamide / ionomer blend resin composition can be obtained by dry blending a polyamide and a functional resin, followed by dry mixing a metal cation masterbatch in a melt-processed composition.

The melt processing may be performed in which the ionomer is dispersed in a phase of the polyamide, or the polyamide is dispersed in a phase of the ionomer.

The dry mixing may use a super mixer or a ribbon mixer, and melt processing may be performed using a conventional twin-screw extruder, single-screw extruder, roll mill, kneader or kneader. Extruded products can be obtained using various compounding machines such as a banbury mixer, and preferably a pelletizer after melt kneading under vacuum conditions for removing volatiles generated during melt processing using a twin screw extruder. pelletizer).

The above components will be described in detail as follows.

Acrylic acid polymer

The acrylic acid polymer of the present invention preferably has an anion component of 5 to 50% by weight, and the anion component is preferably selected from the group consisting of sulfonic acid, phosphoric acid, carboxylic acid and esters thereof.

In addition, the acrylic acid polymer is preferably selected from homopolymers, copolymers, terpolymers, and mixtures thereof. Specifically, the copolymer has α-CH ₂ structure having RCH = CH ₂ structure. It is composed of an olefin, wherein R is a radical selected from the class consisting of hydrogen and alkyl radicals having 1 to 8 carbon atoms or α, β-ethylenically having 3 to 8 carbon atoms ) Unsaturated carboxylic acid.

The α-olefin is more preferably selected from the group consisting of ethylene, propylene, butene, pentene, hexene, heptene, methyl butene and methyl pentene, wherein the α, β-ethylenically unsaturated carboxylic acid is acrylic acid, methacrylic acid, eta More preferably selected from the group consisting of acrylic acid, itaconic acid, maleic acid and fumaric acid or mono ester of dicarboxylic acid, the mono ester of α, β-ethylenically unsaturated carboxylic acid is methyl hydrogen maleate, methyl hydride Most preferably, it is selected from the group consisting of rosen fumarate, ethyl hydrogen fumarate and maleic anhydride.

In addition, the terpolymer is composed of an α-olefin having a structure of RCH = CH ₂ , wherein R is a radical selected from the class consisting of hydrogen and alkyl radicals having 1 to 8 carbon atoms or 3 to 8 carbon atoms. The branch is preferably an α, β-ethylenically unsaturated carboxylic acid.

Polyamide resin

As the polyamide resin used in the present invention, a monomer having a three-membered or more ring structure as a monomer may be used a single or two or more polycondensed lactams or ω-amino acids, and diacids or diamines. When diamine is used, polyamide polymers or copolymers thereof alone or in combination of two or more thereof can be used.

In addition, the polyamide resin may be selected from homopolyamide, copolyamide and mixtures thereof, and the polyamide may be semi-crystalline or noncrystalline.

Specifically for these, for example, monomers that can be polymerized alone include ε-caprolactam, aminocapronic acid, enanthlactam, 7-aminoheptanoic acid, 11-aminoundecanoic acid, 9-aminononanoic acid and α-P There are polymers in which only one or two or more selected from peridones are used.

In addition, the diacid used in the polycondensation reaction of diacid and diamine is adipic acid, sebacic acid, dodecanediic acid, glutaric acid, terephthalic acid, 2-methyl terephthalic acid, isophthalic acid, naphthalenedicarboxylic acid. The selected one is used, and the diamine is selected from tetramethylenediamine, hexamethylenediamine, nonamethylenediamine, decamethylenediamine, undecamethylenediamine, dodecamethylenediamine, para-aminoaniline and methaxylenediamine.

In addition, polyfunctional compounds such as trimellitic acid and pyromellitic acid having three or more functional groups in addition to the diacid or diamine can also be used within 5 mol%, and are mentioned above to increase flexibility and viscosity in the polymerization process. Polyamides in which some of the monomers of polyamide remain are also usable.

Specific examples of the polyamide resin used in the present invention include nylon 6, 7, 8, 10, 12, 66, 69, 610, 611, 612, 6T, 6/66, 6/12, 6 / 6T, and the like. Among them, it is preferred to be selected from the group consisting of polyamide 6, polyamide 66 and polyamide 6/66, and blends of unlimited combinations and content ratios of the above polyamide resins can be used.

These polymerization methods are also not limited to polymerization methods such as anionic polymerization, bulk melt polymerization, solution polymerization, melt polymerization through salt, interfacial polymerization, reaction extrusion, and polycondensation polymerization using two or three or more monomers. Amide copolymers can be used regardless of the content ratio of their components.

In the polyamide / ionomer blend mixture of the present invention, the blending ratio of polyamide and ionomer is preferably mixed at a ratio of polyamide: ionomer = 5 to 95:95 to 5% by weight.

Metal cation

The metal cations of the present invention include lithium (Li), sodium (Na), magnesium (Mg), aluminum (Al), potassium (K), calcium (Ca), manganese (Mn), zinc (Zn) and mixtures thereof. Preferably, the metal cation is selected from the group consisting of metal salts, and the metal salt is most preferably selected from the group consisting of metal hydroxides, metal carbonates, metal acetates, and mixtures thereof.

The metal cation may also be used in the form of a master batch of metal salts or a master batch of metal cations.

The metal cation may be used in an amount of 1 to 50 pph based on the weight of the acrylic acid polymer, and when the content of the metal cation is less than 1 pph, the addition effect of the metal cation cannot be expected, and the rigidity increases as the content of the metal cation increases. On the other hand, when the fluidity is lowered, if it exceeds 50 pph, the melt strength is sharply increased and the fluidity is considerably lowered, resulting in problems in processability.

Slip

The slip agent in the present invention is used to improve the releasability with the mold during injection to improve productivity and to improve scratch resistance, thereby improving the performance of the injection molded product.

The slip agent used in the present invention includes a slow-release slip agent and a fast-acting slip agent, and may be used alone or in combination of two or more.

The slow-release slip agent includes polydimethyl siloxane (polydimethyl siloxane, PDMS), a methyl group or a part of dimethyl siloxane substituted with at least one aliphatic or aromatic type selected from hydrogen, a phenyl group, a halogenated phenyl group, a halogenated alkyl group, a fluorine ester group, and the like. And siloxane derivatives.

In addition, as a fast-acting slip agent, oleamide, erucamide, oleyl palmitamide, stearly erucamide, ethylene bis oleamide, etc. For example.

In particular, the use of a slow-release slip agent and a fast-acting slip agent is preferable in terms of improving scratch resistance and formability, and more preferably, an ultra high molecular weight (UHMW) PDMS.

The slip agent component may be used in an amount of 0.1 to 5.0 parts by weight based on 100 parts by weight of the mixture of the acrylic acid polymer, the polyamide resin, and the metal cation. Delamination between the amide / ionomer material and the slip agent occurs, resulting in a decrease in the performance of the injection molded product. When the content of the fast-acting slip agent exceeds 5.0 parts by weight, product processing, productivity, and part performance are caused by gas generation during injection. This deterioration occurs.

In addition, when the slow-release slip agent or fast-acting slip agent content is less than 0.1 part by weight, the mold release property and scratch resistance of the product may be lowered, thereby lowering the performance of the injection molded product.

Pigment

Pigments used in the present invention include metal pigments, inorganic pigments and organic pigments, inorganic pigments and organic pigments may be used alone or in combination of two or more.

The metal pigment is preferably in the form of flakes or powder, such as aluminum, copper, iron, and more preferably has an average particle size of 5 ~ 600㎛.

The inorganic pigments include zinc powder, bronze powder, pearl mica, titanium white, zinc oxide, zinc sulfide, chromium yellow, barium yellow, ultramarine blue, cobalt blue, cobalt green, carbon black, and the like. Red, palladium red, tolyzinmal, benzidine elo, phthalocyanine green, and the like.

In addition, the MIC-capable polyamide / ionomer blend resin composition having improved scratch resistance is further oxidized during melt processing of the polyamide / ionomer blend mixture containing the acrylic acid polymer, polyamide resin, metal cation and slip agent. Preventive agent, light stabilizer, heat stabilizer, UV stabilizer, lubricant, mold release agent, pigment, dye, flame retardant, fiber reinforced filler or nucleating agent reinforcing filler, crosslinking agent, accelerator, ultraviolet active compound, processing aid, foaming agent, inorganic filler, extender, nano Additives such as fillers, nanofibers, inorganic fibers, glass fibers, organic fibers, and natural fibers may be added within a range that does not affect physical properties, appearance, and workability, based on 100 parts by weight of the polyamide / ionomer blend mixture. 1 to 80 parts by weight may be added.

The reaction product prepared from the MIC-capable polyamide / ionomer blend resin composition of the present invention can be applied to exterior materials such as transportation equipment, home appliances, computer equipment, communication equipment, portable electronic devices, or building decoration materials.

The exterior material of the transport device includes an automobile bumper, a fender, an outside mirror housing, a fuel tank cap, and the like, and is particularly preferably applied to a high gloss unpainted bumper field, and the exterior material of the home appliance is a refrigerator, a cleaner, a washing machine, a camcorder. The exterior material of the communication device includes a general telephone, a mobile phone, a mobile phone, and the like, and the building decoration material includes a window chassis and a flooring material.

Conventionally, when the amount of ionomer is increased when the blend resin composition of polyamide and ionomer and their reaction product is formed, the compatibility is poor, and the polyamide / ionomer blend resin composition according to the present invention and the reaction product thereof are At least one polyamide resin and at least one acrylic is melted by mixing at least one acrylic acid polymer and at least one metal cation in the presence of at least one polyamide resin to produce a polymer blend composition. The acidic polymer is endowed with ionic properties to the polyamide or the additional properties of the polyamide into the ionic structure, forming a polymer blend composition with a pseudo crosslinked network formed in-situ .

Hereinafter, the present invention will be described in more detail based on the following Examples, Comparative Examples and Test Examples.

However, the following examples are only for illustrating the present invention, and the present invention is not limited by the following examples, and may be changed to other embodiments equivalent to substitutions and equivalents without departing from the technical spirit of the present invention. Will be apparent to those of ordinary skill in the art.

EXAMPLES Preparation of Polyamide / Ionomer Blend Resin Compositions

Each of the compositions in Table 1 below was first mixed in a ribbon mixer to prepare a polyamide / ionomer blend mixture.

Table 1 Composition ratio of polyamide / ionomer blend mixture in kg

	end	I	All	la	hemp	bar
1011BRT Note 1)	80	80	80	80	80	80
Escor 5200 Note 2)	20	20	20	20	20	20
ZnO Note 3)	1.075	1.075	1.075	-	-	-
Na2CO3 Note 4)	-	-	-	0.691	0.691	0.691
Zn-st Note 5)	0.3	0.3	0.3	0.3	0.3	0.3
Antioxidant Note 6)	0.2	0.2	0.2	0.2	0.2	0.2
Erucamide Note 7)	0.5	0.5	0.5	0.5	0.5	0.5
MB50-011 Note 8)	One	2	3	One	2	3

Note 1) Polyamide resin (Polyamide 6), Hyosung, Korea

2) Acrylic acid polymer, manufactured by Exxon Mobil, USA

Note 3) Metal cation (metal salt), manufactured by Lanxess, Germany

Note 4) Metal cation (metal salt), manufactured by Samjeon Pure Chemical Industries, Korea

Note 5) zinc stearate, dispersant, manufactured by Akrochem, USA

Note 6) Phenolic antioxidant, Anox20, manufactured by Chemtura, USA

Note 7) Fast-acting slip agent, Amorslip-E, manufactured by Akzo-Nobel, The Netherlands

Note 8) Concentrated 50% UHMW-polydimethyl siloxane in polyamide resin of Multibase Co., Ltd.

In addition, pigment master batches were prepared with the compositions shown in Table 2 below.

TABLE 2 Pigment master batch (unit: kg)

	A	B	C
Carbon Black Note 1)	2	2	5
Phthalocyanine blow Note 2)	5	5	20
Benzidine yellow note2 )	One	3	10
Titanium Dioxide Note3)	2	5	5
Zinc stearate Note 4)	5	5	10
Aluminum Flake Note 5)	35	-	-
Aluminum Powder Note 5)	-	25	-
Surlyn 9910 Note 6)	50	55	50

Note 1) Inorganic pigments: carbon black (160B), manufactured by KCB, Korea

2) Organic pigments: Phthalocyanine Blow, Benzidine Yellow, manufactured by Asahi Pigment, Japan

Note 3) Inorganic pigments: titanium dioxide (CR834), manufactured by Tronox, Australia

Note 4) Dispersant: zinc stearate, manufactured by Akrochem, USA

Note 5) Metal pigments: aluminum flakes, aluminum powder (SILVET 764-30-E1), manufactured by SILBERLINE, USA

Note 6) Surlyn 9910: Ionomer, manufactured by Dupont, USA

The composition of Table 1 and the composition of Table 2 were combined to prepare a polyamide / ionomer blend resin composition according to the present invention, and 100 parts by weight of the polyamide / ionomer blend mixture prepared according to the composition of Table 1 above and the table The master batch 3 pph of 2 (based on the blend mixture weight) was added to a twin screw extruder in a batch and extruded into pellets, and then the pellets were manufactured into injection molding machines and test specimens for physical property measurement.

At this time, the injection temperature of the injection machine is 30/200/240/250/260 ℃ in the order of the nozzle in the feeding hopper, the injection pressure was adjusted to 60 ~ 100bar.

Comparative Example Preparation of Rubber-Containing Polyamide Resin Composition

Each of the compositions in Table 3 was mixed in a ribbon mixer to prepare a rubber-containing polyamide mixture.

TABLE 3 Composition ratio of rubber-containing polyamide mixture (unit: kg)

	end'	I'	All'	la'
1011BRT Note 1)	80	80	-	-
Nanomer® I.24T Note 2)	-	-	90	80
Fusabond 493D Note 3)	10	20	10	20
Ca-st Note 4)	0.3	0.3	0.3	0.3
Antioxidant Note 5)	0.2	0.2	0.2	0.2
EBS Note 6)	0.2	0.2	0.2	0.2

Note 1) Polyamide resin (Polyamide 6), Hyosung, Korea

Note 2) Polyamide resin (Nano-polyamide 6), manufactured by Nanocor, USA

Note 3) Modified rubber (ethylene octene copolymer), manufactured by DuPont, USA

Note 4) Calcium stearate, Seoul Fine Chemicals, Korea

Note 5) Phenolic antioxidant (Anox20), manufactured by Chemtura, USA

Note 6) Release agent (EBS), manufactured by Lonza, USA

A rubber-containing polyamide resin composition was prepared by combining the composition of Table 3 and the composition of Table 2, respectively, and the molded article for physical property measurement and the test specimen for appearance test were manufactured in the same manner as in the above Example.

<Test Example>

Physical properties of the specimens prepared in Examples and Comparative Examples were measured by the following test methods, and the results are shown in Tables 4 and 5 below.

-Glossiness: ASTM D1003, 60 ° slope gross value measured by gloss meter

-Pencil hardness: JIS K 5600-5-4 pencil scratch hardness measurement method

-Weldline: Visual evaluation of the difference of depth and thickness of weld appearing on the appearance of the injection molded product through electrical outlet simulation mold

-Tensile strength: ASTM D 638, tested at 50mm / min on UTM

-Izod impact strength: ASTM D256, 1/4 inch thick specimen, room temperature

Table 4 Physical property measurement result of Example

	Combination	Glossiness (%)	Pencil hardness	Weld line	Tensile Strength (㎏ / ㎠)	Izod impact strength (kgcm / cm)
Example 1	Ga-A	85	3H	Good	680	25
Example 2	Ga-B	83	2H	Good	695	24
Example 3	Ga-C	81	2H	Good	710	31
Example 4	I-A	91	3H	Good	675	26
Example 5	I-B	88	2H	Good	690	25
Example 6	I-C	87	2H	Good	700	33
Example 7	DA-A	84	3H	Good	682	25
Example 8	DA-B	82	2H	Good	697	24
Example 9	DA-C	80	2H	Good	713	31
Example 10	LA-A	90	3H	Good	674	26
Example 11	LA-B	87	2H	Good	692	25
Example 12	LA-C	84	2H	Good	703	33
Example 13	Ma-A	83	3H	Good	682	25
Example 14	Ma-B	81	2H	Good	694	24
Example 15	Ma-C	79	2H	Good	714	31
Example 16	Bar-A	88	3H	Good	672	26
Example 17	Bar-B	86	2H	Good	691	25
Example 18	Bar-C	85	2H	Good	703	33

Table 5 Physical property measurement result of comparative example

	Combination	Glossiness (%)	Pencil hardness	Weld line	Tensile Strength (㎏ / ㎠)	Izod impact strength (kgcm / cm)
Comparative Example 1	Go'-A	50	HB	usually	600	40
Comparative Example 2	Ga'-B	55	HB	usually	610	39
Comparative Example 3	Ga'-C	60	1B	Good	620	32
Comparative Example 4	Me'-A	40	1B	Bad	430	90
Comparative Example 5	I'-B	40	1B	Bad	435	88
Comparative Example 6	I'-C	48	2B	usually	460	80
Comparative Example 7	C'-A	59	HB	usually	660	35
Comparative Example 8	C'-B	53	HB	usually	670	33
Comparative Example 9	C'-C	38	1B	Good	690	25
Comparative Example 10	La'-A	52	1B	Bad	485	70
Comparative Example 11	LA'-B	48	1B	Bad	490	68
Comparative Example 12	LA'-C	35	2B	usually	540	62

As described in Examples 1 to 18 of Table 4, the gloss tends to decrease as the content of the polysiloxane masterbatch increases, but when the polyamide 6 / ionomer blend resin composition is used as the base resin, no coating is required. Glossiness of 70% or more was shown.

In the case of the rubber-containing PA6 impact product of Table 5, as described in Comparative Examples 1 to 12, the glossiness was different according to the rubber content and the filler type, and the glossiness was decreased as the rubber content was increased. It showed a value well below the 70% level of gloss which is the same degree as that of the coated product.

Comparing the evaluation results related to the weld line of the appearance of the injection molded product with the glossiness, the weld product of the polyamide resin reaction product containing rubber was poor in dispersibility with the pigment as compared with the example.

As described above, the blended resin composition and the reaction product thereof according to the present invention have a high glossiness similar to that of the coated product, and have excellent rigidity, impact resistance and scratch resistance, and are applied to a bumper material of an automobile without a coating process. In addition, it can be usefully applied to various industrial equipment and building materials, such as exterior materials such as various transport equipment, home appliances, computer equipment, communication equipment, portable electronic products and other decorative materials requiring high gloss.

Claims (23)

1. 5 to 95% by weight of at least one acrylic acid polymer selected from the group consisting of oligomers, prepolymers and polymers having an anion component of 5% or more, 95 to 5% by weight polyamide resin, 1 to 50 pph based on the weight of the acrylic acid polymer Preparing a polyamide / ionomer blend mixture by mixing a metal cation of 0.1 to 5.0 parts by weight of a slip agent based on 100 parts by weight of the mixture of the acrylic acid polymer, the polyamide resin, and the metal cation;

   Preparing a metallic master batch consisting of 15-40% by weight of metal pigments, 10-40% by weight of organic and inorganic pigments and 20-75% by weight of the polyamide / ionomer blend mixture; And

   Mixing the metallic master batch 0.1 ~ 10pph to 100 parts by weight of the polyamide / ionomer blend mixture; comprising, MIC capable of improving scratch resistance polyamide / ionomer blend resin composition.
2. The method according to claim 1,

   The acrylic acid polymer is an anionic component content of 5 to 50% by weight, MIC capable of improving scratch resistance polyamide / ionomer blend resin production method.
3. The method according to claim 2,

   The anion component is at least any one selected from the group consisting of sulfonic acid, phosphoric acid, carboxylic acid and esters thereof, MIC is a polyamide / ionomer blend resin production method with improved scratch resistance.
4. The method according to claim 1,

   The acrylic acid polymer is at least one selected from the group consisting of homopolymers, copolymers, terpolymers and mixtures thereof, MIC capable of improving scratch resistance polyamide / ionomer blend resin composition .
5. The method according to claim 4,

   The copolymer is composed of an α-olefin having a structure of RCH = CH ₂ , and R is a radical selected from the class consisting of hydrogen and alkyl radicals having 1 to 8 carbon atoms, or α, β having 3 to 8 carbon atoms. A process for producing a polyamide / ionomer blend resin composition capable of MIC with improved scratch resistance, characterized in that it is an ethylenically unsaturated carboxylic acid.
6. The method according to claim 5,

   The α-olefin is at least one selected from the group consisting of ethylene, propylene, butene, pentene, hexene, heptene, methyl butene and methyl pentene, polyamide / ionomer blend with improved scratch resistance Method for producing a resin composition.
7. The method according to claim 5,

   The α, β-ethylenically unsaturated carboxylic acid is at least one selected from the group consisting of acrylic acid, methacrylic acid, etaacrylic acid, itaconic acid, maleic acid and fumaric acid, MIC capable of improving scratch resistance Process for preparing polyamide / ionomer blend resin composition.
8. The method according to claim 5,

   The α, β-ethylenically unsaturated carboxylic acid is a mono ester of dicarboxylic acid, characterized in that the scratch resistance improved MIC capable polyamide / ionomer blend resin composition.
9. The method according to claim 4,

   The terpolymer is composed of an α-olefin having a structure of RCH═CH ₂ , wherein R is a radical selected from the class consisting of hydrogen and alkyl radicals having 1 to 8 carbon atoms, or α, having 3 to 8 carbon atoms, A method of producing a polyamide / ionomer blend resin composition capable of MIC with improved scratch resistance, characterized by being β-ethylenically unsaturated carboxylic acid.
10. The method according to claim 1,

    The polyamide resin is at least one selected from the group consisting of nylon 6, 7, 8, 10, 12, 66, 69, 610, 611, 612, 6T, 6/66, 6/12 and 6 / 6T. A method of producing a polyamide / ionomer blend resin composition capable of MIC with improved scratch resistance.
11. The method according to claim 1,

    The metal cation is at least one selected from the group consisting of lithium, sodium, magnesium, aluminum, potassium, calcium, manganese, zinc and mixtures thereof, polyamide / ionomer capable of improved scratch resistance MIC Method for producing a blended resin composition.
12. The method according to claim 1,

    The metal cation is a method of producing a polyamide / ionomer blend resin composition capable of MIC improved scratch resistance, characterized in that consisting of a metal salt.
13. The method according to claim 12,

    The metal salt is at least one selected from the group consisting of metal hydroxides, metal carbonates, metal acetates and mixtures thereof, MIC capable of improving scratch resistance polyamide / ionomer blend resin composition .
14. The method according to claim 1,

    The metal cation is used in the form of a master batch, the method of producing a polyamide / ionomer blend resin composition capable of MIC improved scratch resistance.
15. The method according to claim 1,

    The slip agent is a slow-release slip agent of a dimethyl siloxane derivative of a form in which a methyl group of polydimethyl siloxane, dimethyl siloxane or a part thereof is substituted with at least one aliphatic or aromatic system selected from hydrogen, phenyl group, halogenated phenyl group, halogenated alkyl group and fluoro ester group. Scratch resistance improved MIC poly, characterized in that at least any one selected from the group consisting of oleamide, erucamide, oleyl palmitamide, stearic erucamide, ethylene bis oleamide fast-acting slip agent Process for preparing amide / ionomer blend resin composition.
16. The method according to claim 1,

    The metal pigment is at least one flake or powder selected from the group consisting of aluminum, copper and iron, MIC capable of improving scratch resistance polyamide / ionomer blend resin composition manufacturing method.
17. The method according to claim 1,

    Wherein the metal pigment is characterized in that the average particle size of 5 ~ 600㎛, MIC capable of improving scratch resistance polyamide / ionomer blend resin composition.
18. The method according to claim 1,

    The polyamide / ionomer blend mixtures include antioxidants, light stabilizers, thermal stabilizers, ultraviolet stabilizers, lubricants, mold release agents, pigments, dyes, flame retardants, fiber reinforced fillers or nucleating agents, reinforcing fillers, crosslinking agents, accelerators, ultraviolet active compounds, processing aids. MIC has improved scratch resistance, characterized in that it further comprises at least one selected from the group consisting of a blowing agent, an inorganic filler, an extender, a nano filler, nano fibers, inorganic fibers, glass fibers, organic fibers and natural fibers Process for the preparation of possible polyamide / ionomer blend resin compositions.
19. Resin composition produced by the method of any one of claims 1 to 18 is applied to at least one selected from the group consisting of exterior materials and building decorative materials of transportation equipment, home appliances, computer equipment, communication equipment and portable electronic devices product.
20. The method according to claim 19,

    The exterior material of the transport device is a reaction product, characterized in that at least any one selected from the group consisting of automobile bumper, fender, outside mirror housing and fuel tank cap.
21. The method according to claim 19,

    The exterior material of the home appliance is a reaction product, characterized in that at least any one selected from the group consisting of a refrigerator, a cleaner, a washing machine and a camcorder.
22. The method according to claim 19,

    The exterior material of the communication device is a reaction product, characterized in that at least any one selected from the group consisting of a general telephone, a portable telephone and a mobile phone.
23. The method according to claim 19,

    The building decoration material is a reaction product, characterized in that the window chassis or flooring.