JPH05222138A - Propylene polymer composition and its production - Google Patents

Abstract

PURPOSE:To obtain the title composition which can provide a molding excellent in coatability by specifying the structural state of the title composition prepared by modifying a polymer composition comprising a propylene polymer and an amorphous ethylen/propylene copolymer with a specified modifier. CONSTITUTION:The title composition is prepared by modifying an unmodified propylene polymer composition comprising 20-99 pts.wt. propylene polymer (e.g. PP) of a melt flow rate(MFR) of 0.1-30g/10min and 1-80 pts.wt. amorphous ethylene/propylene copolymer of an MFR of 0.1-10g/10min with at least one modifier selected between an ethylenically unsaturated compound containing a tert. amino group and an ethylenically unsaturated compound containing an epoxy group (e.g. N,N-dimethylaminoethyl acrylate) so that the modified ethylene/propylene copolymer is present in a state dispersed in the modified propylene polymer, and the mean particle diameter of the dispersed particles may be 5mum or below.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a propylene-based polymer composition capable of providing a molded article having excellent coatability and a method for producing the same, and more specifically, it performs surface treatment using a primer or a solvent. The present invention relates to a propylene-based polymer composition having high adhesion to a paint such as a urethane resin-based paint even if it is not present, and a method for producing the same.

[0002]

TECHNICAL BACKGROUND OF THE INVENTION Propylene-based polymers (propylene homopolymers or propylene copolymers) have various properties such as mechanical properties, heat resistance, solvent resistance, oil resistance and chemical resistance. The propylene-based polymer is widely manufactured industrially, and is widely used as a raw material for manufacturing industrial parts such as automobiles and electric devices and daily necessities.

Since this propylene-based polymer has no polar group in the molecule, it is chemically inert and has high stability. However, on the other hand, since the propylene-based polymer does not have a polar group, the adhesion with other resins is not good. Therefore, when the surface of the propylene-based polymer molded article is coated with, for example, a urethane resin-based paint, an electrical treatment method such as corona discharge, a mechanical roughening method, a flame treatment method, an oxygen treatment method. Alternatively, it is necessary to pretreat the surface of the propylene-based polymer molded article by a surface treatment method such as an ozone treatment method to improve the affinity of the surface of the propylene-based polymer molded article with other resins. When performing the surface treatment as described above, the surface of the propylene-based polymer molded article is previously washed with a solvent such as alcohol or aromatic hydrocarbon, a solvent such as trichloroethylene, perchlorethylene, pentachloroethylene or toluene. The method of cleaning with steam is generally used.

However, in order to carry out these methods, an apparatus for processing all of them is required, the equipment cost thereof is required, and a considerable amount of time is required for the processing, so that the production cost becomes high. There is. Further, in addition to the method of applying the surface treatment as described above to the surface of the propylene-based polymer molded body, the surface of the propylene-based polymer molded body is undercoated with a primer capable of adhering to the propylene-based polymer. A method of applying a paint such as a polyurethane resin-based paint on the undercoat layer is also used.

However, even in this method, since the undercoating step and the overcoating step are required, it takes a long time for the coating step, and since the coating film has a two-layer structure, the production of the propylene-based polymer molded product is required. There is a problem of high cost. As described above, with respect to the coating of the molded body made of the propylene-based polymer, the molded body itself is generally subjected to some treatment. Therefore, since the process is complicated in the conventional coating of the propylene-based polymer molded article, the above-mentioned surface treatment step can be omitted, and the propylene-based polymer excellent in coating property can be omitted. The advent of propylene-based polymers that can provide molded articles is highly desired.

As a method for improving the coatability of a propylene-based polymer molded article, for example, JP-A-58-217349 is used.
The publication discloses a molded article made of an olefin-based polymer composition obtained by modifying a polyolefin with an unsaturated group-containing amine, and it is shown that this molded article has good coatability. However, although this polyolefin has good adhesiveness with some isocyanate-based adhesives, it does not necessarily have good adhesiveness with paints.

In order to improve the properties of such a propylene-based polymer composition, while maintaining the excellent properties inherently possessed by the base propylene polymer, further required properties, namely, Good paintability must be imparted. However, when examining the characteristics of such a propylene-based polymer composition in detail,
The properties of the composition obtained, for example, properties such as coatability and impact resistance, are significantly different depending on the order of modification and the dispersed state of the resin to be mixed, and conventionally known propylene polymer compositions are There is room for further improvement in properties such as resistance and impact resistance.

[0008]

The object of the present invention is to provide a propylene-based polymer molded article which is excellent in impact resistance as well as excellent in coatability without impairing the excellent properties inherently possessed by the propylene-based polymer. It is an object of the present invention to provide a propylene-based polymer composition to be provided and a method for producing the same.

[0009]

SUMMARY OF THE INVENTION The propylene polymer composition according to the present invention has a melt flow rate (MFR) of 0.1 to 30 g /
20 to 99 parts by weight of a 10-minute propylene-based polymer (A-1), an ethylene content of 60 to 95 mol%, and
Melt flow rate (MFR) is 0.1-10g / 10
Minute Amorphous Ethylene-Propylene Copolymer (B-1) 1
-80 parts by weight [Propylene-based polymer (A-1) and amorphous ethylene
-The total amount of the propylene copolymer (B-1) is 100 parts by weight], and a non-modified propylene-based polymer composition comprising a tertiary amino group-containing ethylenically unsaturated compound and an epoxy group-containing ethylene. A propylene-based polymer composition modified with at least one modifier selected from the group consisting of organic unsaturated compounds, wherein the modified ethylene-propylene copolymer (B) is the modified propylene-based polymer (A). Existing in a dispersed state in the modified ethylene-
The propylene copolymer (B) is characterized in that the average dispersed particle diameter is 5 μm or less.

The method for producing a propylene-based polymer composition according to the present invention has a melt flow rate of 0.1 to 30.
g / 10 min propylene polymer (A-1) 20 to 99
Amorphous ethylene-propylene copolymer (B-1) 1 to 80 with parts by weight and an ethylene content of 60 to 95 mol% and a melt flow rate of 0.1 to 10 g / 10 min.
Parts by weight [Propylene-based polymer (A-1) and amorphous ethylene
-The total amount of the propylene copolymer (B-1) is 100 parts by weight], and a non-modified propylene-based polymer composition comprising a tertiary amino group-containing ethylenically unsaturated compound and an epoxy group-containing ethylene. When modified with at least one modifier selected from the group consisting of unsaturated unsaturated compounds, the propylene polymer (A-1) and amorphous ethylene
-When preparing an unmodified propylene-based polymer composition by melt-kneading with a propylene copolymer (B-1), the specific energy (e) represented by the following formula [I] is 0.25 kW.
-Characterized by melt-kneading under the kneading condition of time / kg or more.

E = motor power consumption / resin extrusion rate [I] According to the method for producing a propylene-based polymer composition of the present invention, a propylene-based polymer and an amorphous ethylene-propylene copolymer are used. (Rubber component) is kneaded while imparting a specific energy to prepare an unmodified propylene-based polymer composition, and the unmodified propylene-based polymer composition is modified with a specific modifier, The dispersed particle diameter of the modified rubber component dispersed in the modified propylene polymer composition can be made minute. A molded article obtained from such a composition is particularly excellent in coatability and adhesiveness, and is also excellent in mechanical properties such as impact resistance.

[0012]

DETAILED DESCRIPTION OF THE INVENTION The propylene polymer composition and the method for producing the same according to the present invention will be specifically described below. The propylene-based polymer composition according to the present invention is an unmodified propylene-based polymer composition comprising a propylene-based polymer (A-1) and an amorphous ethylene-propylene copolymer (B-1), It is modified with a specific modifier.

Propylene Polymer (A-1) The propylene polymer (A-1) used in the present invention is
Homopolymer of propylene, or propylene and other α-
It is a copolymer with an olefin. Examples of α-olefins copolymerized with propylene include ethylene and 1-
Butene, 1-hexene, 4-methyl-1-pentene and the like can be mentioned. These monomers may form a random copolymer with propylene, or may form a block copolymer.

The propylene polymer (A-1) used in the present invention has a melt flow rate (MFR) [AST
MD 1238, 230 ° C, load 2.16〓;
Unless otherwise specified, the same measurement method] is 0.1
30 g / 10 minutes, more preferably 0.5 to 15 g / 1
It is in the range of 0 minutes. By using a propylene-based polymer having such an MFR, a composition having excellent moldability can be obtained.

In the present invention, the propylene unit content of the propylene polymer (A-1) is usually 90.
It is at least mol%. This propylene polymer (A-1)
The boiling n-heptane-insoluble matter is usually 90% or more, preferably 93% or more. That is, the propylene polymer (A-1) is a (co) polymer having a relatively small amount of amorphous portion.

The density of the propylene polymer (A-1) used in the present invention is usually 0.90 to 0.92 g / c.
Within the range of m ³ . The propylene-based polymer (A-1) having the above-mentioned properties can be produced by various methods. As a typical production method, it is formed from a solid titanium catalyst component and an organometallic compound component. Or a catalyst formed from both of these components and an electron donor.

As the solid titanium catalyst component used in this method, titanium trichloride or a titanium trichloride composition produced by various methods, magnesium, halogen, an electron donor, preferably an aromatic carboxylic acid ester or A titanium catalyst component which contains an alkyl group-containing ether and titanium as essential components and which is supported on a carrier having a specific surface area of preferably 100 m ² / g or more. A propylene-based polymer produced by using the latter catalyst component with a carrier is particularly preferable.

Further, an organoaluminum compound is suitable as the organometallic compound component. Specific examples of the organic aluminum compound include trialkylaluminum, dialkylaluminum halide, alkylaluminum sesquihalide, and alkylaluminum dihalide. The organoaluminum compound can be appropriately selected according to the type of titanium catalyst component used.

As the electron donor, an organic compound having a nitrogen atom, a phosphorus atom, a sulfur atom, a silicon atom, a boron atom or the like can be used, and an ester compound and an ether compound having the above atoms are preferable. Can be given as an example. Regarding the method for producing a propylene-based polymer using the catalyst component with a carrier as described above, for example, JP-A-50-108385,
JP-A-50-126590, JP-A-51-20297
JP-A-51-28189, JP-A-52-1516
The details are disclosed in publications such as No. 91, and the techniques described therein can be used in the present invention.

Amorphous ethylene-propylene copolymer (B
-1) The amorphous ethylene-propylene copolymer (B-1) used in the present invention is a copolymer rubber in which ethylene and propylene are randomly copolymerized. The content of repeating units derived from ethylene in the amorphous ethylene-propylene copolymer (B-1) is in the range of 60 to 95 mol%, preferably 70 to 90 mol%. Therefore, the repeating unit derived from ethylene and the repeating unit derived from propylene are randomly bonded in the copolymer (B-1).

Further, the melt flow rate (MFR) of the amorphous ethylene-propylene copolymer (B-1) [A
STM D 1238, 230 ° C, load 2.16 kg;
Hereinafter, the same measurement method is used unless otherwise specified]
0.1 to 10 g / 10 minutes, preferably 0.1 to 4 g / 1
It is in the range of 0 minutes. By using the copolymer (B-1) having such MFR, a propylene-based polymer composition having excellent moldability can be obtained.

Further, the amorphous ethylene-propylene copolymer (B-1) is amorphous, and the crystallinity measured by the X-ray diffraction method is usually 40% or less, preferably 20% or less. is there. As described above, the amorphous ethylene-propylene copolymer (B-1) used in the present invention is a copolymer having relatively low crystallinity and therefore has rubber elasticity.

Such an amorphous ethylene-propylene copolymer can be produced, for example, by copolymerizing ethylene and propylene in the presence of a catalyst composed of a soluble vanadium compound and an alkylaluminum halide compound. .. Specific examples of the polymerization catalyst that can be used in this method include vanadium tetrachloride, vanadium oxytrichloride, vanadium triacetyl acetate, and oxyvanadium triacetyl acetate.

Specific examples of the alkylaluminum halide compound which constitutes the polymerization catalyst in combination with the soluble vanadium compound include ethylaluminum dichloride, diethylaluminum monochloride, ethylaluminum sesquichloride, diethylaluminum monobromide and diisobutyl. Aluminum monochloride,
Examples thereof include isobutyl aluminum dichloride and isobutyl aluminum sesquichloride.

The copolymerization reaction using the above catalyst can be carried out in the form of a solution or suspension or in an intermediate region between these,
In any case, an inert solvent is preferably used as the reaction medium (solvent). As such a reaction medium,
Usually, aliphatic hydrocarbons and halogenated hydrocarbons having about 3 to 12 carbon atoms are used.

Specific examples of the above-mentioned aliphatic hydrocarbon include propane, butane, pentane, hexane, heptane, octane, nonane, decane, undecane, dodecane and kerosene (aliphatic hydrocarbon having a boiling point of about 150 to 250 ° C. And the like). As the halogenated hydrocarbon, specifically, methyl chloride,
Examples thereof include ethyl chloride and ethylene dichloride.

These reaction media can be used alone or as a mixture. The polymerization temperature when using the above catalyst is usually 0 to 100 ° C. Unmodified propylene-based polymer composition In the present invention, the propylene-based polymer (A-1) and the amorphous ethylene-propylene copolymer (B) as described above are used.
From -1), an unmodified propylene-based polymer composition is prepared.

This unmodified propylene polymer composition is
Propylene polymer (A-1) 20 to 99 as described above
Parts by weight, preferably 55 to 85 parts by weight, and 1 to 80 parts by weight, preferably 15 to 45 parts by weight, of the amorphous ethylene-propylene copolymer (B-1). The total blending amount of the propylene polymer (A-1) and the amorphous ethylene-propylene copolymer (B-1) is 100 parts by weight.

Further, the propylene-based polymer (A-
Ratio [MFR (A-1) / MFR] of MFR of 1) and MFR of amorphous ethylene-propylene copolymer (B-1)
(B-1)] is in the range of 0.1 to 200,
It is preferable to combine the propylene-based polymer (A-1) and the amorphous ethylene-propylene copolymer (B-1), and it is particularly preferable to combine the both so as to be in the range of 0.5 to 100. By combining the two so that the MFR ratio becomes as described above, the dispersion state of each component in the obtained propylene polymer composition becomes good.

Such a propylene polymer (A-1)
The unmodified propylene-based polymer composition can be prepared by optionally mixing and the amorphous ethylene-propylene copolymer (B-1) and then melt-mixing.
A conventionally known mixer such as a Henschel mixer can be used for the above mixing.

The melt-kneading is carried out while imparting a specific energy to the unmodified propylene polymer composition. In the present invention, during this melt-kneading, 0.25 kW · hour / kg or more, preferably,
The specific energy (e) within the range of 0.25 to 0.4 kW · hour / kg, more preferably 0.25 to 0.36 kW · hour / kg is imparted. By melt-kneading under such conditions, the amorphous ethylene-propylene copolymer (B-1) forms fine particles and is dispersed in the propylene-based polymer (A-1).

The above-mentioned specific energy (e) is the amount of energy per unit volume used for crushing aggregates, and can be expressed by the following formula [I]. e = motor power consumption / resin extrusion amount ... [I] This specific energy (e) is described in detail in Kohei Ito, “Plastics, 36 , 37 (1988)”.

In order to produce the propylene polymer composition according to the present invention, an apparatus capable of melt-kneading while imparting the specific energy (e) as described above is used in the field of ordinary olefin polymers. A conventionally known kneading device can be used. Examples of the kneading device that can be used for producing the propylene-based polymer composition according to the present invention include an extruder, a mixing roll, a Banbury mixer, and a kneader.

The heating temperature for melt-kneading the propylene-based polymer (A-1) and the amorphous ethylene-propylene copolymer (B-1) using the kneading apparatus as described above is the melting point of the raw materials used. The above temperature can be appropriately set within the range of the decomposition temperature or lower, but is usually 170 to 35.
The temperature is set to 0 ° C., preferably 180 to 250 ° C.

Incidentally, in general, the propylene polymer (A-1) and the amorphous ethylene-propylene copolymer (B
-1) is mixed so as to be in the range of the composition ratio described above, and the resulting mixture is melt-kneaded. As another method, a component of the propylene-based polymer composition may be used. There is a method in which a part is previously kneaded, a composition is produced by a so-called masterbatch, and the composition produced by this masterbatch and the remaining constituent components of the propylene polymer composition are mixed.

Propylene-Based Polymer Composition The propylene-based polymer composition according to the present invention comprises the unmodified propylene-based polymer composition prepared as described above,
A composition modified with a specific modifier. The modifier used in the present invention is at least one modifier selected from the group consisting of a tertiary amino group-containing ethylenically unsaturated compound and an epoxy group-containing unsaturated compound (C).

The tertiary amino group-containing ethylenically unsaturated compound that can be used in the present invention has at least one tertiary amino group in the molecule, and has a tertiary amino group as a heterocycle. Compounds are also included. As the tertiary amino group-containing ethylenically unsaturated compound, specifically,
N, N- dimethylaminoethyl acrylate, N, N-
Diethylaminomethyl acrylate, N-ethyl-N-phenylaminoethyl acrylate, N, N-dimethylaminoethyl acrylamide, N, N-diethylaminoethyl acrylamide, N, N-dimethylaminopropyl acrylamide, N, N-diethylaminopropyl acrylamide, N , N-dimethylaminoethyl methacrylate, N, N-diethylaminomethyl methacrylate,
N-ethyl-N-phenylaminoethyl methacrylate,
N, N-dimethylaminoethylmethacrylamide, N,
N-diethylaminoethyl methacrylamide, N, N-
Examples thereof include dimethylaminopropyl methacrylamide, N, N-diethylaminopropyl methacrylamide, vinyl pyridine and vinyl piperidine.

Such a tertiary amino group-containing ethylenically unsaturated compound is used as the unmodified propylene polymer composition 10
It is usually used in an amount of 0.01 to 50 parts by weight, preferably 0.1 to 40 parts by weight, relative to 0 parts by weight. The epoxy group-containing ethylenically unsaturated compound that can be used in the present invention only needs to have one or more epoxy groups in the molecule,
Also included are compounds having an epoxy group as a heterocycle.

Specific examples of the epoxy group-containing unsaturated compound include glycidyl acrylate, glycidyl ester of p-styrenecarboxylic acid, diglycidyl maleate, methyl glycidyl maleate, isopropyl glycidyl maleate and maleic acid. -t-butylglycidyl ester, fumaric acid diglycidyl ester, fumaric acid methylglycidyl ester,
Fumaric acid isopropylglycidyl ester, itaconic acid diglycidyl ester, itaconic acid methylglycidyl ester, itaconic acid isopropylglycidyl ester,
Crotonic acid diglycidyl ester, crotonic acid methylglycidyl ester, crotonic acid isopropylglycidyl ester, citraconic acid diglycidyl ester, citraconic acid methylglycidyl ester, citraconic acid isopropylglycidyl ester, 2-methylene glutaric acid diglycidyl ester, 2-methylene methylene glutaric acid Methyl glycidyl ester, butene dicarboxylic acid monoglycidyl ester, allyl glycidyl ether, 2-methylallyl glycidyl ether, vinyl glycidyl ether, styrene-p-glycidyl ether, 3,4-epoxy-1-
Butene, 3,4-epoxy-3-methyl-1-butene, 3,
4-epoxy-1-pentene, 3,4-epoxy-3-methyl-1-pentene, 5,6-epoxy-1-hexene, vinylcyclohexene monoxide and the like can be mentioned. Of these, glycidyl acrylate and glycidyl methacrylate are preferred.

Such an epoxy group-containing ethylenically unsaturated compound is an unmodified propylene polymer composition 100.
It is generally used in an amount of 0.01 to 50 parts by weight, preferably 0.1 to 40 parts by weight, based on parts by weight. When modifying the unmodified olefin-based polymer composition,
In addition to the above modifiers, styrene as a copolymerization component, aromatic vinyl compounds such as α-methylstyrene, acrylonitrile, and unsaturated compounds such as methacrylonitrile as long as the characteristics of the composition of the present invention are not impaired. Nitrile compounds, unsaturated carboxylic acids such as acrylic acid and methacrylic acid, acrylic acid alkyl esters, methacrylic acid alkyl esters, 2-hydroxyethyl acrylate, acrylic acid hydroxyalkyl esters such as 2-hydroxypropyl acrylate, 2-hydroxyethyl methacrylate,
A methacrylic acid hydroxyalkyl ester such as 2-hydroxypropyl methacrylate and an unsaturated group-containing compound such as vinyl acetate and vinyl chloride can be used in combination.

When such an unsaturated group-containing compound is used, the unsaturated group-containing compound is usually used in an amount of 0.1% by weight based on 100 parts by weight of the unmodified propylene polymer composition.
It is used in a proportion of 01 to 50 parts by weight, preferably 0.05 to 40 parts by weight. The modification of the unmodified propylene-based polymer composition as described above is preferably carried out in the presence of a radical initiator. As such a radical initiator, an organic peroxide or an azo compound is usually used.

Specific examples of the above organic peroxide include:
1,1-Bis (t-butylperoxy) -3,5,5-
Trimethylcyclohexane, 1,1-bis (t-butylperoxy) cyclohexane, 2,2-bis (t-butylperoxy) octane, n-butyl-4,4-bis (t
-Butylperoxy) valalate, 2,2-bis (t-
Peroxyketals such as butylperoxy) butane,
Di-t-butyl peroxide, dicumyl peroxide, t-butyl cumyl peroxide, α, α′-bis (t-butylperoxy-m-isopropyl) benzene,
2,5-dimethyl-2,5-bis (t-butylperoxy) hexane, 2,5-dimethyl-2,5-bis (t-
Butylperoxy) hexyne-3 and other dialkyl peroxides, acetyl peroxide, isobutyryl peroxide, octanoyl peroxide, decanoyl peroxide, lauroyl peroxide, 3,
Diacyl peroxides such as 5,5-trimethylhexanoyl peroxide, benzoyl peroxide, 2,4-dichlorobenzoyl peroxide, and m-trioyl peroxide, t-butyl peroxyacetate, t-butyl peroxyiso Butyrate, t-butylperoxy-2-ethylhexanoate, t-butylperoxylaurylate, t-butylperoxybenzoate, di-t-butylperoxyisophthalate, 2,5-
Peroxyesters such as dimethyl-2,5-di (benzoylperoxy) hexane, t-butylperoxymaleic acid, t-butylperoxyisopropyl carbonate, cumylperoxyoctate, t-butyl hydroperoxide, Mention is made of hydroperoxides such as cumene hydroperoxide, diisopropylbenzene hydroperoxide, 2,5-dimethylhexane-2,5-dihydroperoxide and 1,1,3,3-tetramethylbutyl hydroperoxide. You can

Of these, preferred are 1,1-bis (t-butylperoxy) -3,5,5-trimethylcyclohexane, di-t-butylperoxide, dicumyl peroxide and 2,5-dimethyl. -2,5-bis (t
-Butylperoxy) hexane, 2,5-dimethyl-
2,5-bis (t-butylperoxy) hexyne-3,
Benzoyl peroxide, 2,4-dichlorobenzoyl peroxide, m-trioyl peroxide, t-
Butyl peroxy-2-ethyl hexanoate.

Further, specific examples of the azo compound include azoisobutyronitrile, azobis (2,4-dimethylvaleronitrile), 2-t-butylazo-2-cyano-
4-methoxy-4-methylpentane, 2-t-butylazo-2
-Cyano-4-methylpentane, 2-t-butylazo-2-
Examples thereof include cyanobutane, 1-t-butylazo-1-cyanocyclohexane, 1-t-amylazo-1-cyanocyclohexane and the like.

These radical initiators can be used alone or in combination. The above radical initiator is
It is usually 0.01 to 10 parts by weight, preferably 0.05 to 100 parts by weight of the unmodified propylene-based polymer composition.
Used in a proportion of up to 8 parts by weight. As a method of modifying the unmodified propylene-based polymer composition with the modifier as described above, (1) a modifier and an unmodified propylene-based polymer composition may be optionally combined with a radical initiator and an unsaturated group-containing compound. In addition, a method of melt-kneading, (2) an unmodified propylene-based polymer composition in which a modifier and, if necessary, a radical initiator and an unsaturated group-containing compound are blended, the unmodified propylene-based polymer composition is in a solid state. And a method of denaturing by heating to a temperature at which the temperature can be maintained.

In the method (2) above, an unmodified propylene-based polymer composition (usually formed into pellets)
In addition, a modifier, and if necessary a radical initiator and an unsaturated group-containing compound are blended, for example, the unmodified propylene-based polymer composition pellets at a temperature at which the shape of the pelletized unmodified propylene-based polymer composition is maintained. Is a method of heating. In this method, the heating temperature may be a temperature equal to or lower than the melting point of the unmodified propylene-based polymer composition, and is usually within a temperature range of 100 ° C. lower than the melting point to less than the melting point, preferably 70 to 140 ° C. Set within.
The reaction time can be appropriately set in consideration of the heating temperature, but is usually 0.1 to 10 hours.

In such modification, it is preferable to add a small amount of an organic solvent to carry out the modification reaction. That is, since the pellet swells to some extent by using a small amount of the organic solvent, the modifier can penetrate into the inside of the pellet and uniformly modify the unmodified propylene polymer composition. Therefore, as the organic solvent, an organic solvent that does not excessively dissolve the unmodified propylene-based polymer and has a solubility that allows the unmodified propylene-based polymer composition to swell to some extent is used. ..

Specific examples of such an organic solvent include aromatic hydrocarbon solvents such as benzene, toluene and xylene, and aliphatic hydrocarbon solvents such as pentane, hexane, heptane, octane, nonane and decane. Solvents, cyclopentane, cyclohexane, methylcyclohexane, alicyclic hydrocarbon solvents such as decahydronaphthalene, and solvents such as chlorobenzene, dichlorobenzene, methylene chloride, chloroform, carbon tetrachloride, methanol, ethanol, acetone, methyl ethyl ketone, etc. Can be mentioned.

Such a solvent is used in a proportion of usually 50 parts by weight or less, preferably 20 parts by weight or less, relative to 100 parts by weight of the unmodified propylene polymer composition to be modified. The grafting amount (converted to a monomer) of the modifier in the propylene-based polymer composition according to the present invention is usually 0.0 based on the weight of the modified propylene-based polymer composition.
It is 5 to 15% by weight, preferably 0.1 to 8% by weight.

In the production of the propylene polymer composition of the present invention, all of the above unmodified propylene polymer composition is used and modified so that the composition has the above-mentioned modification amount. The method is adopted, but besides this,
A part of the unmodified propylene-based polymer composition is previously modified at a high concentration to produce a modified propylene-based polymer composition by a so-called masterbatch, and the resulting modified propylene-based polymer composition and the remaining unmodified The modification amount may be adjusted within the above range by mixing the propylene-based polymer composition of 1.

In the propylene polymer composition according to the present invention, the modified amorphous ethylene-propylene copolymer (B) is dispersed in the modified propylene polymer (A) so as to have an average dispersed particle size of 5 μm or less. Then, a so-called polymer alloy is formed. In the present invention, the average dispersed particle size is preferably in the range of 0.03 to 3 μm, and particularly preferably in the range of 0.05 to 2 μm.

As described above, by dispersing the modified amorphous ethylene-propylene copolymer (B) in the modified propylene-based polymer (A), the molded article molded from the propylene-based polymer composition is With improved impact,
The paintability will be excellent. The average dispersed particle size of the modified amorphous ethylene-propylene copolymer (B) is the modified amorphous ethylene-propylene copolymer (B) in which the fracture surface of the core portion of the test piece is dispersed by observing with an electron microscope. Is an average value calculated from the measured values.
When an inorganic filler is added to the propylene polymer composition according to the present invention, it may be difficult to confirm the dispersed particle size of the modified amorphous ethylene-propylene copolymer (B) by an electron microscope. In this case, the dispersed particle size of the modified amorphous ethylene-propylene copolymer (B) in the composition prepared under the same conditions without adding the inorganic filler may be within the above range.

The melt flow rate (MFR) of the propylene polymer composition according to the present invention [ASTM D 123
8, 230 ° C., load 2.16 kg; hereinafter, the same measurement method is used unless otherwise specified] is usually 0.5 to 30.
It is in the range of g / 10 minutes, often 1-20 g / 10 minutes. Further, with respect to a notched test piece having a thickness of 1/8 inch, which is made of the propylene polymer composition according to the present invention,
The Izod impact strength at −30 ° C. measured according to ASTM D-256 is usually 3 to 60 kg · cm /
cm, often in the range of 5 to 30 kg · cm / cm.

Further, regarding the test piece of 1/8 inch in thickness made of the propylene polymer composition according to the present invention, A
Flexural modulus (F measured according to STM D-790
M) is usually 5,000 to 17,000 kg / cm
² , often 6,000 to 12,000 kg / cm ²
Is within the range. The propylene-based polymer composition according to the present invention basically comprises the modified propylene-based polymer (A).
And an amorphous ethylene-propylene copolymer (B), but further containing other resins or additives within a range that does not impair the characteristics of the propylene polymer composition of the present invention. You can

Examples of other resins which can be blended in the present invention include high density polyethylene, medium density polyethylene, low density polyethylene, poly-1-butene, ethylene-1-butene copolymer, propylene-1- Butene copolymer, propylene-1-butene-ethylene copolymer, styrene-butadiene (-styrene) block copolymer and hydrogenated products thereof, styrene-isoprene (-styrene)
Examples thereof include block copolymers and hydrogenated products thereof.

Further, examples of other additives that can be blended in the present invention include antioxidants, ultraviolet absorbers, lubricants, nucleating agents, antistatic agents, flame retardants, pigments, dyes, plasticizers, and electrical agents. Mention may be made of physical property modifiers, inorganic fillers and organic fillers. For example, specific examples of the inorganic filler used in the present invention include aluminum, copper,
Metals such as nickel, iron and lead, metals such as magnesium, calcium, barium, zinc, zirconium, molybdenum, silicon, antimony and titanium, and oxides, hydroxides, sulfates, carbonates and silicates thereof. Furthermore, talc, mica, silica, glass fibers and graphite can be mentioned.

These other resins or additives can be blended when preparing the propylene-based polymer composition of the present invention, and the propylene-based polymer composition of the present invention was prepared. It can also be added later. Molded Product The propylene-based polymer composition of the present invention obtained as described above is usually molded into pellets and is a molding method generally used in the field of thermoplastic resins, for example, injection molding or extrusion molding. A molded body having a desired shape can be manufactured by employing a method or the like.

The temperature at the time of this molding is set to a temperature higher than the melting point of the propylene-based polymer composition to be used and within the range of the thermal decomposition temperature or less, and is generally 17
It is set in the range of 0 to 300 ° C, preferably 250 ° C. The molded product molded from the propylene polymer composition according to the present invention has excellent affinity with other resins. Therefore, the molded product molded from the propylene-based polymer composition according to the present invention has been considered to be an essential step when coating a molded product conventionally molded from a propylene-based resin. Even if the steam cleaning step with a chlorine-based solvent such as 1-trichloroethane is omitted, the adhesion of the coating film is very good. In addition, the molded product molded from the propylene-based polymer composition according to the present invention has very good adhesion of the coating film without the primer treatment.

Solvent-based paints, water-based paints and solvent-free paints can be used for coating the molded products molded from the propylene polymer composition according to the present invention. Examples of solvent-based paints include alkyd resin paints, aminoalkyd resin paints, vinyl resin paints, room temperature dry acrylic resin paints, baking dry acrylic resin paints, tar epoxy epoxy resin paints, and varnishes. Examples thereof include enamel-type epoxy resin-based paint, one-component urethane resin-based paint, multi-component urethane resin-based paint, unsaturated polyester resin-based paint, and chlorinated rubber-based paint.

Examples of the water-based paint include emulsion paints and water-soluble resin paints. Further examples of solvent-free paints include powder paints and traffic paints. The molded product molded from the propylene-based polymer composition according to the present invention is particularly suitable as a solvent-based paint, and particularly has a good affinity with a urethane resin-based paint.
Urethane resin-based paints are paints that generally form a coating film by reacting a polyisocyanate and a polyol compound, and there are one-pack type and two-pack type, and there are also powder paints using a block-type isocyanate. The molded product made of the propylene-based polymer composition according to the present invention has good affinity with any of these urethane resin-based paints.

Among the urethane resin type paints as described above,
For example, a coating method using a one-pack type urethane resin-based coating material will be described by way of example. A molded article molded from the propylene-based polymer composition according to the present invention is washed with water and a general industrial detergent. Washing is performed at least once each, followed by washing with water, and then heating and drying. That is, when coating a molded product molded from the propylene-based polymer composition according to the present invention, it is not always necessary to perform steam cleaning using a chlorine-based solvent, which has been conventionally performed. A urethane resin coating film can be formed by applying a one-component urethane resin-based paint to the molded product dried as described above and heating it as necessary.

The coating film formed in this manner has very good adhesion to the molded product, even though it is not washed (surface treated) with chlorine-based solvent vapor. There is. Further, the molded product molded from the propylene-based polymer composition according to the present invention has a good adhesive property, and various adhesives can be used without performing primer treatment or solvent vapor cleaning as described above. Has a good affinity for.

Examples of adhesives that can be used for bonding the molded article include urea resin adhesives, melamine resin adhesives, phenol resin adhesives, epoxy resin adhesives, vinyl acetate solvent adhesives. Agent, cyanoacrylate adhesive, polyurethane adhesive, α-olefin / maleic anhydride resin adhesive, water-based polymer / isocyanate adhesive, reactive acrylic resin adhesive, UV curable modified acrylic resin adhesive Agents, synthetic resin adhesives such as anaerobic modified acrylic resin adhesives; vinyl acetate emulsion adhesives, vinyl acetate copolymer resin emulsion adhesives, ethylene-vinyl acetate copolymer resin emulsion adhesives , Emulsion type adhesives such as acrylic emulsion type adhesives; vinyl acetate hot melt type adhesives, elastomers Hot melt type adhesives such as system hot melt type adhesives and polyamide type hot melt type adhesives; synthetic rubber type adhesives such as chloroprene type synthetic rubber type adhesives and synthetic rubber type latex type adhesives. it can.

As a bonding method using such an adhesive, a conventionally used method can be adopted. Then, in such an adhesive method, a desired adhesive strength can be obtained even if the primer treatment or the organic solvent vapor cleaning is not particularly performed. Utilizing the above characteristics, the propylene-based polymer composition according to the present invention is used for automobile parts, motorcycle parts, electric equipment parts, daily necessities, vending machine parts, civil engineering building materials, general industrial materials, office information equipment. , A packaging material, sports equipment, medical equipment, nuclear power-related parts, and the like, or can be widely used for applications to which coating is applied.

[0065]

INDUSTRIAL APPLICABILITY The propylene polymer composition according to the present invention contains a specific propylene polymer (A-1) and a specific amorphous ethylene-propylene copolymer (B-1) in a specific ratio. The amorphous ethylene-propylene copolymer (B-1) (rubber component), which is blended, is dispersed in the form of particles having a fine dispersed particle diameter to obtain a specific unmodified propylene-based polymer composition. By modifying with a modifier,
Since a polar group is introduced into both of these components, it does not impair the excellent properties such as the flexural modulus originally possessed by the propylene-based polymer, and is particularly excellent in coatability and excellent in impact resistance. A molded body can be provided. In particular, since the molded product molded from the propylene-based polymer composition according to the present invention has excellent adhesion to polyurethane, the urethane coating can be directly applied to the surface of the molded product.

Further, according to the method for producing a propylene-based polymer composition according to the present invention, modification in the propylene-based polymer composition obtained by setting the melt-kneading conditions in the kneading step within a specific range. Since the dispersed particle diameter of the rubber component can be controlled, it is possible to produce a propylene-based polymer composition that can provide a molded product having excellent coatability and adhesiveness.

The present invention will be described below with reference to examples.
The invention is not limited to these examples.
Various properties of the propylene-based polymer composition used in the present invention were measured as follows. (1) According to MFR ASTM D-1238, a load of 2.16 kg,
It was measured at a temperature of 230 ° C. (2) Grafting amount The polymer after the reaction was dissolved in p-xylene at 130 ° C. and allowed to cool, and then the polymer was precipitated with acetone to remove unreacted substances and purified. The grafted amount of the purified polymer was calculated from the result of oxygen analysis. (3) Izod impact strength (with notch) (Iz) Using a test piece having a thickness of 1/8 inch, ASTM D-256
Was measured at -30 ° C. (4) Flexural Modulus (FM) Using a test piece having a thickness of 1/8 inch, ASTM D-790
Was measured according to. (5) Coating test ○ Preparation of test piece The following paint was applied to a square plate molded by a 50-ton injection molding machine.

1-component urethane-based paint Flexen # 105
[Brand name, manufactured by Nippon Bee Chemical Co., Ltd.]-Film thickness after drying 60 μm-Baking conditions 120 ° C, 30 minutes Unless otherwise specified in the examples, 1, 1, 1 before coating the above-mentioned paint -Steam cleaning with trichloroethane was performed.

Cross-cut test A cross-cut test piece was prepared according to the method of the cross-cut test described in JIS K-5400, and cellophane tape [trade name, manufactured by Nichiban Co., Ltd.] was used as the test piece. This cellophane tape was quickly pulled in the direction of 90 degrees to be peeled off after being adhered to, and the number of remaining cross-cut coating films was counted, and this number was used as an index of adhesion.

Peeling strength test A coating film was prepared on a base material, a 1 cm width was cut by a cutter blade until the blade reached the base material, the edge of the coating film was peeled off, and the peeled coating was applied. The peel strength was measured by pulling the edge of the film at a speed of 50 mm / min in the direction of 180 degrees until the coating film peeled. (6) Adhesion test ○ Preparation of test piece Aqueous dispersion of styrene / acrylonitrile / ethylhexyl acrylate / ethyl acrylate / n-butyl acrylate copolymer (molar ratio: 35/35/13/15/7) Product name, Yodozole, manufactured by Kanebo NSC Co., Ltd.] is applied so that the application amount is 200 g / m ^2, and the cloth is lightly placed on top and pressed by hand, then in an air oven at 100 ° C. for 30
It was dried for a minute.

Peel Strength Test One hour after the above drying, the peel strength was measured by using a tensile tester at a pulling speed of 50 mm / min so that the cloth would peel in the direction of 180 degrees. ○ Cross-cut test A cross-cut test piece was prepared according to the method of the cross-cut test described in JIS K-5400, and cellophane tape [trade name, manufactured by Nichiban Co., Ltd.] was attached to the test piece. Then, this cellophane tape was rapidly pulled in the direction of 90 degrees to be peeled off, and the number of remaining cross-cut coating films was counted, and this number was used as an index of adhesion. (7) Particle size of dispersed phase It was determined from an electron micrograph image of the fracture surface of the core of the test piece.

The types of propylene-based polymers, ethylene-based copolymer rubbers, tertiary amino group-containing ethylenically unsaturated compounds, epoxy group-containing unsaturated compounds and organic peroxides used in Examples and Comparative Examples , Physical properties and the like. (A) Propylene polymer PP-1: MFR 0.3 g / 10 minutes, density 0.91
g / cm ³ crystalline propylene homopolymer PP-2: MFR 11.5 g / 10 minutes, density 0.9
1 g / cm ³ of crystalline propylene homopolymer PP-3: MFR 0.5 g / 10 min, density 0.91
g / cm ³ , propylene-ethylene random copolymer having an ethylene content of 4 mol% PP-4: MFR 20 g / 10 min, density 0.91 g
/ Cm ³ , propylene-ethylene random copolymer having an ethylene content of 3 mol% PP-5: MFR 2.0 g / 10 minutes, density 0.91
g / cm ³ propylene homopolymer PP-6: MFR 0.3 g / 10 min, density 0.91
Propylene-ethylene random copolymer having ethylene content of 3 mol% (g / cm ³ ) (B) Ethylene copolymer rubber EP-1: MFR 0.7 g / 10 minutes, density 0.87
g / cm ³ , ethylene-propylene copolymer rubber having an ethylene content of 81 mol% EP-2: MFR of 8.1 g / 10 min, density of 0.87
g / cm ³ , ethylene-propylene copolymer rubber with an ethylene content of 81 mol% EP-3: MFR 1.8 g / 10 min, density 0.87
Ethylene-propylene copolymer rubber having g / cm ³ and an ethylene content of 81 mol% (C) Tertiary amino group-containing ethylenically unsaturated compound and epoxy group-containing unsaturated compound UC-1: N, N-dimethylamino Ethyl acrylate UC-2: N, N- dimethylaminoethyl acrylamide UC-3: Glycidyl methacrylate UC-4: N, N-dimethylaminopropyl acrylamide (D) Organic peroxide PO-1: 2,5-dimethyl-2 , 5-Bis (t-butylperoxy) hexyne-3

[0073]

Example 1 MFR 0.3 g / 10 minutes, density 0.9
1 g / cm ³ of crystalline propylene homopolymer [hereinafter referred to as P
Abbreviated as P-1] 85 parts by weight and MFR 0.7 g /
10 minutes, density 0.87 g / cm ³ , ethylene content 8
1 mol% of ethylene-propylene copolymer rubber [hereinafter,
EP-1) and 15 parts by weight are mixed in a Henschel mixer, and then 180 ° C. in a nitrogen atmosphere using a vented twin-screw extruder (L / D = 42, screw diameter 50 mm).
An unmodified propylene-based polymer composition was prepared at the temperature.

Next, with respect to 100 parts by weight of this unmodified propylene polymer composition, N, N-dimethylaminoethyl acrylate [hereinafter referred to as UC-1] 1.0
By weight, 0.03 parts by weight of 2,5-dimethyl-2,5-bis (t-butylperoxy) hexyne-3 [hereinafter abbreviated as PO-1] are mixed with a Henschel mixer, and the mixture is vented. A twin-screw extruder (L / D = 42, screw diameter 30 mm) was used to melt-knead at a temperature of 200 ° C. in a nitrogen atmosphere to prepare pellets (composition).

The amount of UC-1 grafted in the resulting composition was 0.8% by weight. Various test pieces were prepared from the composition thus obtained as described above, and flexural modulus, Izod impact strength, coating test, adhesive strength and amorphous ethylene-propylene copolymer weight were used using these test pieces. The dispersed phase particle size of the coalescence was determined. The results are shown in Table 1.

[0076]

Examples 2 and 3 PP-1, ER-1, UC-1, PO
Example 1 was repeated except that the compounding amount of -1 was changed as shown in Table 1. The results are shown in Table 1.

[0077]

Example 4 In Example 1, instead of 85 parts by weight of PP-1, 15 parts by weight of EP-1 and 1.0 part by weight of UC-1, MFR was 11.5 g / 10 minutes, respectively.
Crystalline propylene homopolymer having a density of 0.91 g / cm ³ [hereinafter abbreviated as PP-2] 60 parts by weight and MFR of 8.
1 g / 10 min, density 0.87 g / cm ³ , ethylene content 81 mol% ethylene-propylene copolymer rubber [hereinafter abbreviated as EP-2] 40 parts by weight, N, N-dimethylaminoethyl acrylamide [ Hereinafter, abbreviated as UC-2] The procedure of Example 1 was repeated except that 1.5 parts by weight was used.

The results are shown in Table 1.

[0079]

Example 5 In Example 1, instead of 85 parts by weight of PP-1, 15 parts by weight of EP-1 and 1.0 part by weight of UC-1, MFR was 0.5 g / 10 min and density was 0. Propylene-ethylene random copolymer having 91 g / cm ³ and an ethylene content of 4 mol% [hereinafter referred to as PP-3
Was omitted.] 50 parts by weight of EP-2, 50 parts by weight of EP-2, and 1.8 parts by weight of glycidyl methacrylate [hereinafter abbreviated as UC-3] were used in the same manner as in Example 1.

The results are shown in Table 1.

[0081]

Example 6 In place of 85 parts by weight of PP-1, 15 parts by weight of EP-1 and 1.0 part by weight of UC-1 in Example 1, MFR is 20 g / 10 minutes and density is 0.91 g / min. cm ^3, ethylene content 3 mol% propylene - ethylene random copolymer [hereinafter referred to as PP-4] 80 parts by weight, EP-2 20 parts by weight, UC-3
Example 1 was repeated except that 1.2 parts by weight was used.

The results are shown in Table 1.

[0083]

Example 7 Instead of 85 parts by weight of PP-1, 15 parts by weight of EP-1 and 1.0 part by weight of UC-1 in Example 1, 60 parts by weight of PP-4 and EP- respectively.
Example 1 was repeated except that 140 parts by weight of 140 parts and 1.5 parts by weight of UC-3 were used.

The results are shown in Table 1.

[0085]

Example 8 60 parts by weight of PP-1 and 40 parts of EP-1
After mixing 10 parts by weight of talc and 10 parts by weight of talc with a Henschel mixer, a twin-screw extruder with a vent (L / D = 42, screw diameter of 50 mm) was used in a nitrogen atmosphere at 180 ° C.
An unmodified propylene-based polymer composition was prepared at the temperature.

Then, 1.0 part by weight of UC-1 was added to 100 parts by weight of the unmodified propylene polymer composition.
0.03 part by weight of PO-1 was mixed with a Henschel mixer, and this mixture was mixed with a vented twin-screw extruder (L / D = 4).
(2, screw diameter 30 mm) 2 under nitrogen atmosphere
Melt kneading was carried out at a temperature of 00 ° C. to prepare pellets (composition).

Thereafter, the same procedure as in Example 1 was performed. The results are shown in Table 1.

[0088]

Example 9 When a test piece made of the propylene-based polymer composition prepared in Example 2 was coated, 1,1,1-trichloroethane vapor cleaning before coating was not carried out,
Washing with water, general industrial detergent ID-112 [trade name, manufactured by Tosoh Corp.] for 1.5 minutes with a 4% aqueous solution (60 ° C.),
Washing with water, washing with a 1% aqueous solution of general industrial detergent ID-113 [trade name, manufactured by Tosoh Corporation] (55 ° C.) for 1 minute, washing with water, and drying at 80 ° C. for 10 minutes. The test piece subjected to the above-mentioned treatment was coated with a urethane resin-based paint and cured in the same manner as in Example 1, and the above-mentioned test was conducted.

The results are shown in Table 1.

[0090]

Example 10 When coating a test piece made of the propylene-based polymer composition prepared in Example 2, 1,1,1-trichloroethane vapor cleaning before coating the test piece on Example 9 was performed. Instead, the test piece was wiped with a cloth impregnated with isopropanol, and the urethane resin-based paint was applied and cured according to Example 2 to perform the above test.

The results are shown in Table 1.

[0092]

Comparative Example 1 A test piece was prepared from the unmodified propylene-based polymer composition prepared in Example 1, and the above-mentioned test was conducted on this test piece. The results are shown in Table 1.

[0093]

Example 11 25 parts by weight of PP-1 and EP-17
After mixing 5 parts by weight with a Henschel mixer, a vented twin-screw extruder (L / D = 42, screw diameter 50 m
m) was used to prepare an unmodified propylene polymer composition at a temperature of 180 ° C. in a nitrogen atmosphere.

Next, with respect to 100 parts by weight of this unmodified propylene polymer composition, N, N-dimethylaminopropyl acrylamide [hereinafter referred to as UC-4].
1.5 parts by weight and 0.06 parts by weight of PO-1 were mixed with a Henschel mixer, and the mixture was heated to 200 ° C. under a nitrogen atmosphere using a vented twin-screw extruder (L / D = 42, screw diameter 30 mm). The pellets (composition) were prepared by melt-kneading at the temperature of.

The amount of UC-4 grafted in this composition was 0.
It was 8% by weight. Thereafter, the same procedure as in Example 1 was performed.
The results are shown in Table 1.

[0096]

[Examples 12 and 13] The same procedure as in Example 1 was repeated except that the amounts of PP-1 and EP-1 blended were changed to the amounts shown in Table 1. The results are shown in Table 1.

[0097]

Example 14 MFR 2.0 g / 10 min, density 0.
91 g / cm ³ propylene homopolymer [hereinafter referred to as PP-
5]] 25 parts by weight and MFR of 1.8 g / 10
Minute, density 0.87 g / cm ³ , ethylene content 81 mol% ethylene-propylene copolymer rubber [hereinafter referred to as EP
Abbreviated as -3] 75 parts by weight with a Henschel mixer, and then 180 ° C. in a nitrogen atmosphere using a vented twin-screw extruder (L / D = 42, screw diameter 50 mm).
An unmodified propylene-based polymer composition was prepared at the temperature.

Next, to 100 parts by weight of this unmodified propylene polymer composition, 1.5 parts by weight of UC-3,
PO-1 (0.06 parts by weight) was mixed with a Henschel mixer, and this mixture was mixed with a vented twin-screw extruder (L / D = 4).
(2, screw diameter 30 mm) 2 under nitrogen atmosphere
Melt kneading was carried out at a temperature of 00 ° C. to prepare pellets (composition).

The amount of UC-3 grafted on the resulting composition was 1.2% by weight. Thereafter, the same procedure as in Example 1 was performed. The results are shown in Table 1.

[0100]

Example 15 In Example 14, PP-5 and E
Except that the compounding amount of P-3 was changed to the amount described in Table 1,
The same procedure as in Example 14 was performed. The results are shown in Table 1.

[0101]

Example 16 MFR is 0.3 g / 10 minutes and density is 0.
91 g / cm ³ , propylene with an ethylene content of 3 mol%-
After mixing 40 parts by weight of an ethylene copolymer [hereinafter abbreviated as PP-6] and 60 parts by weight of EP-1 with a Henschel mixer, a twin-screw extruder with a vent (L / D = 42,
180 in a nitrogen atmosphere using a screw diameter of 50 mm)
An unmodified propylene polymer composition was prepared at a temperature of ° C.

Next, 1.5 parts by weight of UC-1 was added to 100 parts by weight of the unmodified propylene polymer composition.
PO-1 (0.05 parts by weight) was mixed with a Henschel mixer, and this mixture was mixed with a vented twin-screw extruder (L / D = 4).
(2, screw diameter 30 mm) 2 under nitrogen atmosphere
Melt kneading was carried out at a temperature of 00 ° C. to prepare pellets (composition).

The amount of UC-1 grafted in the resulting composition was 1.0% by weight. Thereafter, the same procedure as in Example 1 was performed. The results are shown in Table 1.

[0104]

[Table 1]

[0105]

[Table 2]

[0106]

[Table 3]

Claims (4)

[Claims] 1. A melt flow rate (MFR) of 0.1
~ 30g / 10min propylene polymer (A-1) 20
To 99 parts by weight, an ethylene content of 60 to 95 mol%, and a melt flow rate (MFR) of 0.1 to 10 g / 10 min of an amorphous ethylene-propylene copolymer (B-1) 1 to 80
Parts by weight [Propylene-based polymer (A-1) and amorphous ethylene
-The total amount of the propylene copolymer (B-1) is 100 parts by weight], and a non-modified propylene-based polymer composition comprising a tertiary amino group-containing ethylenically unsaturated compound and an epoxy group-containing ethylene. A propylene-based polymer composition modified with at least one modifier selected from the group consisting of organic unsaturated compounds, wherein the modified ethylene-propylene copolymer (B) is the modified propylene-based polymer (A). Exists in a dispersed state inside, and
A propylene-based polymer composition, wherein the modified ethylene-propylene copolymer (B) has an average dispersed particle diameter of 5 μm or less. 2. The ratio [MFR of the melt flow rate of the propylene-based polymer (A-1) to the melt flow rate of the amorphous ethylene-propylene copolymer (B-1).
(A-1) / MFR (B-1)] is 0.1-200, The propylene polymer composition of Claim 1 characterized by the above-mentioned. 3. A melt flow rate of 0.1 to 30 g /
20 to 99 parts by weight of propylene-based polymer (A-1) for 10 minutes, amorphous ethylene-propylene having an ethylene content of 60 to 95 mol% and a melt flow rate of 0.1 to 10 g / 10 minutes. 1 to 80 parts by weight of the copolymer (B-1) [Propylene-based polymer (A-1) and amorphous ethylene
-The total amount of the propylene copolymer (B-1) is 100 parts by weight], and a non-modified propylene-based polymer composition comprising a tertiary amino group-containing ethylenically unsaturated compound and an epoxy group-containing ethylene. In modifying with at least one modifier selected from the group consisting of unsaturated unsaturated compounds, the propylene polymer (A-1) and the amorphous ethylene-propylene copolymer (B-1) are melt-kneaded. When preparing an unmodified propylene-based polymer composition, the specific energy (e) represented by the following formula [I] is 0.25 kW · hour /
A method for producing a propylene-based polymer composition, which comprises melt-kneading under a kneading condition of kg or more. e = motor power consumption / resin extrusion amount ... [I] 4. The ratio [MFR of the melt flow rate of the propylene-based polymer (A-1) to the melt flow rate of the amorphous ethylene-propylene copolymer (B-1).
(A-1) / MFR (B-1)] is 0.1-200, The manufacturing method of the propylene-type polymer composition of Claim 3 characterized by the above-mentioned.