KR101664927B1 - Composition of polyketone comprising conductive carbon black and elastic polyurethane - Google Patents

Abstract

The present invention relates to a polyketone composition, and more particularly, to a composition comprising a polyketone polymer, a conductive carbon black, and an elastomeric polyurethane blended therein. Accordingly, when the composition is used as an industrial plastics material compared to a conventional thermoplastic material, To an improved polyketone composition.

Description

TECHNICAL FIELD [0001] The present invention relates to a polyketone composition containing conductive carbon black and an elastic polyurethane,

The present invention relates to a polyketone composition, and more particularly, to a polyketone composition prepared using a blend comprising a polyketone terpolymer, a conductive carbon black, and an elastic polyurethane, and applicable as an industrial component.

 Polyketone (PK) is a low-cost material for general engineering plastic materials such as polyamide, polyester, and polycarbonate, and has excellent properties such as heat resistance, chemical resistance, fuel permeability and abrasion resistance. . For this reason, there is a growing interest in a family of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon, known as polyketones or polyketone polymers. U.S. Patent No. 4,880,903 discloses a linear alternating polyketone terpolymer consisting of carbon monoxide, ethylene and terephthalic unsaturated hydrocarbons such as propylene.

The process for preparing the polyketone polymer is generally carried out by reacting a compound of a Group VIII metal selected from among palladium, cobalt or nickel with an anion of a strong halogen-hydrohalogentic acid, , Phosphorus, arsenic, or antimony (Antimon). U.S. Patent No. 4,843,144 discloses a method for producing a polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon using a palladium compound, an anion of a nonhydrohalogenic acid having a pKa of less than 6, and a catalyst that is a bidentate ligand Lt; / RTI >

Recently, polyketone has been used with various fillers in high value added plastics, high performance, and progress in the high-tech industry. The role of the filler can be seen as cost reduction, improvement of physical properties or properties, functionalization and improvement of processability.

U.S. Patent No. 5,253,635 A discloses a polyketone blend having excellent electrical conductivity by producing a blend of polyketone and conductive carbon fibers.

However, the electrical properties of the above polyketone blend are required to study the polyketone blend which has not only the electric conductivity but also the rebound resilience due to the diversity of application fields of the thermoplastic plastics and demands of the industry demanding more excellent characteristics.

United States Patent Publication No. US5256335A

In order to solve the above problems, it is an object of the present invention to provide a polyketone composition which is superior in electrical characteristics and rebound resilience to conventional polyketone compositions.

In order to achieve the above object, according to a preferred embodiment of the present invention, there is provided a polyketone copolymer comprising repeating units represented by the following general formulas (1) and (2) Ketone, conductive carbon black, and an elastic polyurethane.

- [- CH2CH2-CO] x- (1)

- [- CH2 --CH (CH3) - CO] y - (2)

(x and y represent mol% of each of the general formulas (1) and (2) in the polymer).

According to another preferred embodiment of the present invention, there is provided a polyketone composition characterized in that the polyketone is 60 to 85 wt%, the conductive carbon black is 5 to 20 wt%, and the elastic polyurethane is 10 to 20 wt% .

According to another preferred embodiment of the present invention, the polyketone composition has an electrical conductivity of 10 ¹ to 10 ⁷ Ω / square.

According to another preferred embodiment of the present invention, there is provided a molded article comprising the polyketone composition.

The polyketone composition of the present invention exhibits an excellent electrical characteristic as compared with a conventional polyketone composition having electrical conductivity and repulsion elasticity.

Hereinafter, the present invention will be described in detail.

The present invention is characterized by providing a polyketone composition improved in electrical conductivity and rebound resilience by containing conductive carbon black and an elastic polyurethane in a polyketone.

First, the polyketone as a main component of the present invention will be described. The polyketone resin used in the present invention is an engineering plastic and recently developed as a new resin, it is excellent in mechanical properties such as electrical conductivity and rebound resilience and molding property, and thus is usefully used as a material of various molded products and parts It is a thermoplastic synthetic resin. The mechanical properties of the polyketone resin belong to the category of high performance plastics, and they are attracting much attention as eco-friendly materials because they are polymeric materials synthesized from carbon monoxide as a raw material.

The polyketone resin is less hygroscopic than nylon, and it is possible to design various products with less changes in dimensions and physical properties due to moisture absorption. Especially, polyketone resin is more suitable for weight reduction because it has lower density than aluminum material.

Hereinafter, the process for producing the polyketone will be described.

The production process of polyketone is carried out in the presence of an organometallic complex catalyst comprising (a) a Group 9, 10 or 11 transition metal compound, and (b) a ligand having an element of Group 15, Wherein the carbon monoxide, ethylene and propylene are subjected to liquid phase polymerization in a mixed solvent of an alcohol (e.g., methanol) and water to produce a linear terpolymer, As the solvent, a mixture of 100 parts by weight of methanol and 2 to 10 parts by weight of water may be used. If the content of water in the mixed solvent is less than 2 parts by weight, a ketal may be formed to lower the heat stability in the process. If the amount is more than 10 parts by weight, the mechanical properties of the product may be deteriorated.

Wherein the catalyst comprises (a) a Group 9, 10 or 11 transition metal compound of the Periodic Table of the Elements (IUPAC Inorganic Chemical Nomenclature, 1989) and (b) a ligand having an element of Group 15 elements.

Examples of the Group 9 transition metal compound in the ninth, tenth, or eleventh group transition metal compound (a) include complexes of cobalt or ruthenium, carbonates, phosphates, carbamates, and sulfonates, Specific examples thereof include cobalt acetate, cobalt acetylacetate, ruthenium acetate, ruthenium trifluoroacetate, ruthenium acetylacetate, and ruthenium trifluoromethanesulfonate.

Examples of the Group 10 transition metal compounds include complexes of nickel or palladium, carbonates, phosphates, carbamates, sulfonates and the like. Specific examples thereof include nickel acetate, nickel acetylacetate, palladium acetate, palladium trifluoroacetate , Palladium acetylacetate, palladium chloride, bis (N, N-diethylcarbamate) bis (diethylamine) palladium and palladium sulfate.

Examples of the Group 11 transition metal compound include copper or silver complexes, carbonates, phosphates, carbamates, and sulfonates, and specific examples thereof include copper acetate, copper trifluoroacetate, copper acetylacetate, Examples of the fluoroacetic acid include silver acetyl acetate, trifluoromethanesulfonic acid and the like.

Of these, the transition metal compound (a), which is preferable inexpensively and economically, is nickel and copper compounds, and the preferable transition metal compound (a) in terms of the yield of the polyketone and the molecular weight is the palladium compound, It is most preferable to use palladium acetate.

Examples of the ligands (b) having an atom of Group XIII include 2,2'-bipyridyl, 4,4'-dimethyl-2,2'-bipyridyl, 2,2'- Bis (diphenylphosphino) ethane, 1,3-bis (diphenylphosphino) propane, 1,4-bis (diphenylphosphino) (2-methoxyphenyl) propane, 1,3-bis [di (2-isopropyl) Bis (diphenylphosphino) cyclohexane, 1,2-bis (diphenylphosphino) phosphine] propane, (Diphenylphosphino) methyl] benzene, 1,2-bis [[di (2-methoxyphenyl) (Diphenylphosphino) ferrocene, 2-hydroxy-1,3-bis [di (2-methoxy- (2-methoxyphenyl) phosphino] propane, 2,2-dimethyl-1,3-bis [di (2- Spinosyns; there may be mentioned a ligand, such as propane.

Among these ligands, preferred ligands (b) having a Group 15 element are phosphorus ligands having an atom of Group 15, and particularly preferred ligands in terms of yield of polyketone are 1,3-bis [di (2- Methoxyphenyl) phosphino] propane and 1,2-bis [[di (2-methoxyphenyl) phosphino] methyl] benzene, Di (2-methoxyphenyl) phosphino] propane, and it is safe in that it does not require an organic solvent. Soluble sodium salts such as 1,3-bis [di (2-methoxy-4-sulfonic acid sodium-phenyl) phosphino] propane, 1,2- ] Methyl] benzene, and 1,3-bis (diphenylphosphino) propane and 1,4-bis (diphenylphosphino) butane are preferred for ease of synthesis and availability in large quantities and economically. The preferred ligand (b) having a Group 15 atom is 1,3-bis [di (2-methoxyphenyl) phosphino] propane or 1,3-bis (diphenylphosphino) Bis (di (2-methoxyphenyl) phosphino] propane or ((2,2-dimethyl-1,3-dioxane-5,5- -Methoxyphenyl) phosphine).

[Chemical Formula 1]

Bis (bis (2-methoxyphenyl) phosphine) bis ((2,2-dimethyl-1,3-dioxane-5,5-diyl) bis Activity equivalent to that of 3,3-bis- [bis- (2-methoxyphenyl) phosphanylmethyl] -1,5-dioxa-spiro [5,5] undecane, which is known to exhibit the highest activity among polymerization catalysts The structure is simpler and has a lower molecular weight. As a result, the present invention has been able to provide a novel polyketone polymerization catalyst having the highest activity as a polyketone polymerization catalyst of the present invention, while further reducing its manufacturing cost and cost. A method for producing a ligand for a polyketone polymerization catalyst is as follows. ((2,2-dimethyl) -2,3-dioxolane was obtained by using bis (2-methoxyphenyl) phosphine, 5,5-bis (bromomethyl) Bis (bis (methylene)) bis (bis (2-methoxyphenyl) phosphine) is obtained by reacting a bis (methylene) . The process for preparing a ligand for a polyketone polymerization catalyst according to the present invention is a process for producing a ligand for a polyketone polymerization catalyst which comprises reacting 3,3-bis- [bis- (2-methoxyphenyl) phosphanylmethyl] -1,5-dioxa-spiro [5,5] ((2,2-dimethyl-1,3-dioxane-5,5-diyl) bis (methylene)) bis (bis (2- Methoxyphenyl) phosphine) can be commercially synthesized in a large amount.

In a preferred embodiment, the process for preparing a ligand for a polyketone polymerization catalyst of the present invention comprises: (a) introducing bis (2-methoxyphenyl) phosphine and dimethylsulfoxide (DMSO) into a reaction vessel under nitrogen atmosphere, Adding sodium and stirring; (b) adding 5,5-bis (bromomethyl) -2,2-dimethyl-1,3-dioxane and dimethylsulfoxide to the resulting mixture, followed by stirring and reacting; (c) adding methanol and stirring after completion of the reaction; (d) adding toluene and water, separating the layers, washing the oil layer with water, drying with anhydrous sodium sulfate, filtering under reduced pressure, and concentrating under reduced pressure; And (e) the residue was recrystallized from methanol to obtain ((2,2-dimethyl-1,3-dioxane-5,5- diyl) bis (methylene)) bis (bis (2- methoxyphenyl) And a step of acquiring the image data.

The amount of the Group 9, Group 10 or Group 11 transition metal compound (a) to be used varies depending on the kinds of the ethylenic and propylenically unsaturated compounds to be selected and other polymerization conditions. Therefore, But it is usually from 0.01 to 100 mmol, preferably from 0.01 to 10 mmol, per 1 liter of the reaction zone. The capacity of the reaction zone means the liquid phase capacity of the reactor. The amount of the ligand (b) to be used is not particularly limited, but is usually 0.1 to 3 mol, preferably 1 to 3 mol, per 1 mol of the transition metal compound (a).

Further, the addition of benzophenone in the polymerization of the polyketone is another characteristic. In the present invention, an effect of improving the intrinsic viscosity of the polyketone can be achieved by adding benzophenone in the polymerization of the polyketone. The molar ratio of (a) the ninth, tenth, or eleventh transition metal compound to benzophenone is 1: 5-100, preferably 1:40-60. If the molar ratio of the transition metal to the benzophenone is less than 1: 5, the effect of improving the intrinsic viscosity of the produced polyketone is unsatisfactory. If the molar ratio of the transition metal to the benzophenone exceeds 1: 100, It is not preferable because it tends to decrease

Examples of the ethylenically unsaturated compound copolymerized with carbon monoxide include ethylene, propylene, 1-butene, 1-hexene, 4-methyl-1-pentene, 1-octene, -Olefins such as hexadecene and vinylcyclohexane; Alkenyl aromatic compounds such as styrene and? -Methylstyrene; But are not limited to, cyclopentene, norbornene, 5-methylnorbornene, 5-phenylnorbornene, tetracyclododecene, tricyclododecene, tricyclodecene, pentacyclopentadecene, pentacyclohexadecene, Cyclic olefins such as cyclododecene; Vinyl halides such as vinyl chloride; Ethyl acrylate, and acrylates such as methyl acrylate. Of these, preferred ethylenically unsaturated compounds are? -Olefins, more preferably? -Olefins having 2 to 4 carbon atoms, and most preferably ethylene.

Wherein the carbon monoxide and the ethylenically unsaturated compound and the propylenically unsaturated compound are copolymerized with an organometallic complex comprising a ligand (b) having an element of group 9, group 10 or group 11 transition metal compound (a) or group 15 Catalyzed, the catalyst is produced by contacting the two components. Any method may be employed as the method of contacting. That is, the solution may be prepared as a solution in which two components are premixed in a suitable solvent, or the two components may be supplied separately to the polymerization system and contacted in the polymerization system.

As the polymerization method, a solution polymerization method using a liquid medium, a suspension polymerization method, a vapor phase polymerization method in which a small amount of a polymer is impregnated with a high concentration catalyst solution, and the like are used. The polymerization may be either batchwise or continuous. The reactor used in the polymerization can be used as it is or in a known manner. The polymerization temperature is not particularly limited, and is generally 40 to 180 占 폚, preferably 50 to 120 占 폚. The pressure at the time of polymerization is not particularly limited, but is generally from normal pressure to 20 MPa, preferably from 4 to 15 MPa.

As described above, the polyketone is produced through a polymerization process according to the above-described production process.

On the other hand, the polyketone polymer of the present invention is a line-by-line alternating structure and substantially contains carbon monoxide per one molecule of unsaturated hydrocarbon. Ethylenically unsaturated hydrocarbons suitable for use as precursors of polyketone polymers have up to 20 carbon atoms, preferably up to 10 carbon atoms. Ethylenically unsaturated hydrocarbons can also be selected from the group consisting of ethene and alpha-olefins such as propene, 1-butene, iso-butene, 1- hexene, 1- octene, , Or an aryl aliphatic group containing an aryl substituent on another aliphatic molecule, particularly containing an aryl substituent on an ethylenically unsaturated carbon atom. Examples of aryl aliphatic hydrocarbons in ethylenically unsaturated hydrocarbons include styrene, p-methyl styrene, p-ethyl styrene and m-isopropyl styrene. The polyketone polymer preferably used in the present invention is a copolymer of carbon monoxide and ethene or a second ethylenically unsaturated hydrocarbon having carbon monoxide, ethene and at least three carbon atoms, in particular alpha-olefins such as propene Is a terpolymer.

When the polyketone terpolymer is used as the main polymer component of the blend of the present invention, there are at least two units containing an ethylene moiety in each unit containing the second hydrocarbon moiety in the terpolymer. It is preferable that the number of units containing the second hydrocarbon moiety is from 10 to 100.

The polymer ring of the polyketone polymer preferred in the present invention can be represented by the following formula (2).

(2)

- [CO- (-CH2-CH2-)] x- [CO- (G)] y-

In the general formula (2), G is an ethylenically unsaturated hydrocarbon, particularly a portion obtained from an ethylenically unsaturated hydrocarbon having at least three carbon atoms, and x: y is preferably at least 1: 0.01.

In another embodiment, the polyketone polymer is a copolymer comprising repeating units represented by the general formulas (1) and (2), and y / x is preferably 0.03 to 0.3. When the value of the y / x value is less than 0.03, there is a limit in that the meltability and processability are inferior. When the value of y / x is more than 0.3, the mechanical properties are poor. Further, y / x is more preferably 0.03 to 0.1.

- [- CH2CH2-CO] x- (1)

- [- CH2 --CH (CH3) - CO] y - (2)

In addition, the melting point of the polymer can be controlled by controlling the ratio of ethylene to propylene in the polyketone polymer. For example, when the molar ratio of ethylene: propylene: carbon monoxide is adjusted to 46: 4: 50, the melting point is about 220 ° C, while the melting point is adjusted to 235 ° C when the molar ratio is adjusted to 47.3: 2.7: 50.

Particularly preferred are polyketone polymers having a number average molecular weight of from 100 to 200,000, especially from 20,000 to 90,000, as measured by gel permeation chromatography. The physical properties of the polymer are determined according to the molecular weight, depending on whether the polymer is a copolymer or a terpolymer and, in the case of a terpolymer, the properties of the second hydrocarbon part. The melting point of the total of the polymers used in the present invention is 175 ° C to 300 ° C, and generally 210 ° C to 270 ° C. The intrinsic viscosity (LVN) of the polymer measured by HFIP (hexafluoroisopropyl alcohol) at 60 DEG C using a standard tubular viscosity measuring apparatus is 0.5 dl / g to 10 dl / g, preferably 0.8 dl / g to 4 dl / g, And more preferably 1.0 dl / g to 2.0 dl / g. If the intrinsic viscosity is less than 0.5 dl / g, the mechanical properties are deteriorated. If the intrinsic viscosity exceeds 10 dl / g, the workability is deteriorated.

On the other hand, the molecular weight distribution of the polyketone is preferably 1.5 to 2.5, more preferably 1.8 to 2.2. When the ratio is less than 1.5, the polymerization yield decreases. When the ratio is 2.5 or more, the moldability is poor. In order to control the molecular weight distribution, it is possible to adjust proportionally according to the amount of the palladium catalyst and the polymerization temperature. That is, when the amount of the palladium catalyst is increased or when the polymerization temperature is 100 ° C or higher, the molecular weight distribution becomes larger.

The conductive carbon black and the elastic polyurethane which are subcomponents of the present invention will be described. POLYURETHANE is a generic term for polymers with URETHANE bonds (-NH-COO) in the molecule and is usually obtained by addition reaction using polyisocyanate and polyol as main materials. Since POLYURETHANE is rich and rich in the kinds of raw materials According to their combination method, POLYURETHANE materials with various molecular structures and physical properties are synthesized and are divided into polyester type and polyether type.

Specifically, the polyketone composition of the present invention is composed of a blend composed of a combination of polyketone, conductive carbon black and an elastic polyurethane, and is characterized by improving electrical conductivity and rebound resilience.

The weight of the carbon nanotube or the conductive carbon black or the elastic polyurethane is 5 to 20% by weight based on the total weight. Preferably 5 to 20% by weight in the case of carbon black, and 10 to 20% by weight in the case of elastic polyurethane. If the content of the polyketone resin is less than 60% by weight, the inherent mechanical strength, dimensional stability and molding properties of the polyketone resin may be lowered and the practicality may be lost. When the content exceeds 85%, the relative content of the elastic polyurethane and the conductive carbon black Can be difficult to impart a desired level of electrical conductivity and rebound resilience.

In addition, carbon fiber, mica, talc, or the like may be added to the composition as a reinforcing material to reinforce mechanical properties. Antioxidants and pigments may also be added as desired. These additives may be suitably used by those skilled in the art.

Hereinafter, the production method for producing the polyketone composition is as follows.

The method for producing the polyketone composition of the present invention comprises the steps of: preparing a catalyst composition comprising a palladium compound, an acid having a pKa value of 6 or less, and a bidentate compound of phosphorus; Preparing a mixed solvent of methanol and water (polymerization solvent); Conducting the polymerization in the presence of the catalyst composition and the mixed solvent to prepare a linear terpolymer of carbon monoxide, ethylene and propylene; Removing the remaining catalyst composition from the linear terpolymer with a solvent to obtain a polyketone resin; And mixing the polyketone resin with a conductive carbon black and an elastic polyurethane.

As the palladium compound constituting the catalyst composition, palladium acetate can be used, and the amount of the palladium compound to be used is preferably 10 ^-3 to 10 ^-1 mole.

As the acid having a pKa value of 6 or less constituting the catalyst composition, at least one selected from the group consisting of trifluoroacetic acid, p-toluenesulfonic acid, sulfuric acid and sulfonic acid, preferably trifluoroacetic acid, may be used, 6 to 20 (mol) equivalents relative to the compound is appropriate.

Examples of the bidentate ligand compound constituting the catalyst composition include 1,3-bis [diphenylphosphino] propane (e.g., 1,3-bis [di (2-methoxyphenylphosphino)] propane, Bis [bis [anisyl] phosphinomethyl] -1,5-dioxaspiro [5,5] undecane and ((2,2-dimethyl-1,3-dioxane-5,5-diyl) bis Methylene)) bis (bis (2-methoxyphenyl) phosphine) may be used, and the amount thereof is suitably 1 to 1.2 (mol) relative to the palladium compound.

The carbon monoxide, ethylene and propylene are liquid phase polymerized in a mixed solvent of alcohol (e.g. methanol) and water to produce a linear terpolymer. As the mixed solvent, a mixture of 100 parts by weight of methanol and 2 to 10 parts by weight of water may be used. If the content of water in the mixed solvent is less than 2 parts by weight, a ketal may be formed to lower the heat stability in the process. If the amount is more than 10 parts by weight, the mechanical properties of the product may be deteriorated.

The polymerization temperature is preferably in the range of 50 to 100 ° C and the reaction pressure in the range of 40 to 60 bar. The resulting polymer is recovered through filtration and purification processes after polymerization, and the remaining catalyst composition is removed with a solvent such as alcohol or acetone.

In the present invention, the obtained polyketone resin is mixed with a conductive carbon black and an elastic polyurethane, and then extruded by an extruder to finally obtain a blend composition. The blend is produced by putting into a twin-screw extruder, melt-kneading and extruding.

In this case, the extrusion temperature is preferably 230 to 260 ° C, and the screw rotation speed is preferably in the range of 100 to 300 rpm. If the extrusion temperature is less than 230 캜, kneading may not occur properly, and if the extrusion temperature exceeds 260 캜, problems related to the heat resistance of the resin may occur. If the screw rotation speed is less than 100 rpm, smooth kneading may not occur.

Hereinafter, the present invention will be described in detail by way of examples. However, these examples are provided only for the understanding of the present invention, and the scope of the present invention is not limited to these examples in any sense.

Example 1

(2, 2-dimethyl-1,3-dioxane-5,5-diyl) bis (methylene)) bis (bis (2-methoxyphenyl) phosphine) anion of trifluoroacetic acid. Linear propylene terpolymer of carbon monoxide, ethylene and propylene was polymerized in a mixed solvent of 100 parts by weight of methanol and 5 parts by weight of water at 70 to 90 DEG C in the presence of the catalyst composition. The molar ratio of ethylene to propene in the polyketone terpolymer prepared above was 46 to 4. On the other hand, the melting point of the polyketone terpolymer was 220 DEG C, and the intrinsic viscosity (LVN) measured on 1,1,1,3,3,3-HFIP was 1.5 dl / g.

70 wt% of the prepared polyketone terpolymer, 20 wt% of conductive carbon black, and 10 wt% of elastic polyurethane were blended to prepare a polyketone composition.

Example 2

A polyketone composition was prepared by blending 60 wt% of the polyketone terpolymer produced by the method of Example 1, 20 wt% of the conductive carbon black, and 20 wt% of the elastic polyurethane.

Example 3

A polyketone composition was prepared by blending 80 wt% of the polyketone terpolymer produced by the method of Example 1, 10 wt% of the conductive carbon black, and 10 wt% of the elastic polyurethane.

Example 4

70 wt% of the polyketone terpolymer prepared by the method of Example 1 and 30 wt% of the conductive carbon black were blended to prepare a polyketone composition.

Comparative Example 1

A PA66 composition was prepared by blending 70% by weight Rhodda PA66 (product of A218V30), 15% by weight of conductive carbon black, and 15% by weight of elastic polyurethane.

Property evaluation

The polyketone compositions prepared by the methods of Examples 1 to 4 and the PA66 composition of Comparative Example 1 were prepared as specimens, and their properties were evaluated by the following methods. The results are shown in Table 1 below.

1. Surface resistance evaluation: The surface resistivity was measured by the IEC 60093 method. A high value means an insulating property, and a low value means an excellent conductivity.

2. Impact strength evaluation (Notched Izod): ASTM D638.

Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Surface resistance (Ω / sq) 1.25 × 10 ⁶ 1.43 × 10 ⁶ 3.52 × 10 ⁶ 0.58 × 10 ⁶ 1.2 × 10 ⁷ Impact strength
(KJ / m ² ) 12.5 11.4 12.0 11.8 5.2

As shown in Table 1, it was found that the surface resistance was lower than that of Comparative Example 1 in Examples 1 to 4, so that the electrical conductivity was excellent and the impact strength was excellent (impact strength was 10 KJ / m 2 or more) It was evaluated as suitable for use as a plastic.

Claims (4)

Is a polyketone copolymer composed of repeating units represented by the following general formulas (1) and (2)
The ligand of the catalyst composition used in the polymerization of the polyketone is bis (methylene) bis (bis (2-methoxyphenyl) phosphine Pin)
Wherein the copolymer comprises a linear alternating polyketone having a y / x of 0.03 to 0.3, a conductive carbon black, and an elastic polyurethane.
- [- CH2CH2-CO] x- (1)
- [- CH2 --CH (CH3) - CO] y - (2)
(x and y represent mol% of each of the general formulas (1) and (2) in the polymer).
The method according to claim 1,
Wherein the polyketone is 60 to 85 wt%, the conductive carbon black is 5 to 20 wt%, and the elastic polyurethane is 10 to 20 wt%.
The method according to claim 1,
Wherein the polyketone composition has an impact strength of 10 KJ / m < 2 > or more.
A polyketone molded article comprising the polyketone composition according to any one of claims 1 to 3.