WO2022085542A1 - ブロックポリマー、熱可塑性樹脂組成物及び成形品 - Google Patents
ブロックポリマー、熱可塑性樹脂組成物及び成形品 Download PDFInfo
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- WO2022085542A1 WO2022085542A1 PCT/JP2021/037948 JP2021037948W WO2022085542A1 WO 2022085542 A1 WO2022085542 A1 WO 2022085542A1 JP 2021037948 W JP2021037948 W JP 2021037948W WO 2022085542 A1 WO2022085542 A1 WO 2022085542A1
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- Prior art keywords
- polyolefin
- acid
- block polymer
- modified polyolefin
- thermoplastic resin
- Prior art date
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- 229920000642 polymer Polymers 0.000 title claims abstract description 81
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
- C08G81/02—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C08G81/021—Block or graft polymers containing only sequences of polymers of C08C or C08F
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F299/00—Macromolecular compounds obtained by interreacting polymers involving only carbon-to-carbon unsaturated bond reactions, in the absence of non-macromolecular monomers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F10/04—Monomers containing three or four carbon atoms
- C08F10/06—Propene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
Definitions
- the present invention relates to a block polymer, a thermoplastic resin composition and a molded product.
- Polyolefin resin is widely used as a film, fiber, and other molded products of various shapes because it has excellent moldability, rigidity, electrical insulation, etc., and is inexpensive.
- various modifiers have been developed for polyolefin resins, and modifiers containing low molecular weight polyolefins have been proposed for the purpose of improving pigment dispersibility and mechanical strength (for example, patents).
- Document 1 discloses that
- An object of the present invention is to provide a block polymer that imparts excellent mechanical strength to a thermoplastic resin, particularly a polyolefin resin.
- the present invention has a block polymer (X) having a polyolefin structure derived from the following polyolefin (A) and a polyolefin structure derived from the following polyolefin (B) as constituent units; the block polymer (X) and the thermoplastic resin (Y).
- the present invention relates to a thermoplastic resin composition (Z) containing the above and a molded product obtained by molding the above-mentioned thermoplastic resin composition (Z).
- the block polymer (X) of the present invention has the following effects. (1) An excellent modification effect (improvement of mechanical strength such as tensile strength, bending strength, impact strength, etc.) is imparted to the molded product of the thermoplastic resin composition (Z). (2) Gives excellent mechanical strength to recycled polyolefin resin (YR).
- the polyolefin (A) contains an ⁇ -olefin having 3 to 8 carbon atoms as a constituent monomer, the isotacticity of the ⁇ -olefin moiety is 70 to 100%, and the number average molecular weight is 1,000 to 200. It is a polyolefin having 000 and having a carbon-carbon double bond number of 0.01 to 8.0 per 1000 carbon atoms.
- ⁇ -olefin having 3 to 8 carbon atoms may be referred to as " ⁇ -olefin”.
- ⁇ -olefin examples include propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene, and 1-octene.
- propylene is preferable from the viewpoint of isotacticity described later.
- the polyolefin (A) described above and the polyolefin (B) described later can be distinguished by the isotacticity of the ⁇ -olefin moiety.
- the polyolefin (A) may be composed of other monomers in addition to the ⁇ -olefin. In that case, based on the weight of all the monomers constituting the polyolefin (A), the weight of the other monomers is preferably 20% by weight or less, more preferably 15% by weight or less, still more preferably 10% by weight. It is as follows.
- Examples of the other monomer constituting the polyolefin (A) include ethylene, 2-butene, isobutene, and ⁇ -olefins (1-decene) having 9 to 30 carbon atoms [hereinafter, may be abbreviated as C]. , 1-dodecene, etc.), C4-30 unsaturated monomers other than ⁇ -olefins (eg, vinyl acetate). Of the above other monomers, ethylene is preferable. Further, among the polyolefins (A), a propylene / ethylene copolymer is preferable.
- the isotacticity of the ⁇ -olefin moiety of the polyolefin (A) is 70 to 100%, preferably 75 to 100%, and more preferably 80, from the viewpoint of the modification effect of the block polymer (X) described later. ⁇ 100%.
- the isotacticity of the ⁇ -olefin portion of the polyolefin (A) is an acid-modified polyolefin (AE) in which the polyolefin (A) and a binder ( ⁇ ) described later are bonded, a hydroxyl group-modified polyolefin (AG), and an aminocarboxylic acid modification.
- the isotacticity can be calculated using 13 C-NMR (nuclear magnetic resonance spectroscopy).
- the side chain methylene group is arranged three-dimensionally (meso) to the extent of both sides (triplet, triad), both sides of the triplet (quintuplet, pentad), and both sides of the quintuplet (seven-strand, heptad). Or it is known that peaks are observed at different chemical shifts under the influence of (racemo). Therefore, the evaluation of stereoregularity is generally performed on the pentad.
- the isotacticity of the block polymer (X) of the present invention is also calculated based on the evaluation of pentad.
- the intensity of each peak of the pentad in the ⁇ -olefin moiety is (H) for the carbon peak derived from the side chain methyl group in the propylene obtained by 13 C-NMR, and the pentad has only the meso structure.
- the isotacticity is calculated by the following formula (1), where the peak intensity derived from the methyl group in the isotactic polyolefin formed in (Ha) is taken as (Ha).
- Isotactivity (%) [(Ha) / ⁇ (H)] ⁇ 100 (1)
- the ⁇ -olefin is 1-butene, 1-pentene, 1-hexene, 1-heptene, 1-octene, the side chain methylene next to the main chain methine group in the ⁇ -olefin obtained by 13 C-NMR.
- the intensity of each pentad peak of the ⁇ -olefin moiety is (H)
- the peak derived from the side chain methylene group adjacent to the main chain methine group in the isotactic polyolefin in which the pentad is formed only by the meso structure With the intensity as (Ha), the isotacticity is calculated by the above equation (1).
- the isotacticity of the ⁇ -olefin moiety can be adjusted by changing the polymerization conditions when the ⁇ -olefin moiety is polymerized.
- the difference between the isotacticity of the ⁇ -olefin moiety of the polyolefin (A) and the isotacticity of the ⁇ -olefin moiety of the polyolefin (B) is preferably 10 to 90%, more preferably 20 to 80%, still more preferably 30. It is ⁇ 70%.
- the measurement conditions for isotacticity in the present specification are as follows.
- Equipment ECZ400R manufactured by JEOL Ltd.
- Measurement mode Proton decoupling method
- Pulse width 8 ⁇ sec -Pulse repetition time: 4.6 sec
- Relaxation time 3.0 sec
- Number of integrations 10,000 times
- Solvent Ortodichlorobenzene
- Reference substance Tetramethylsilane
- Sample concentration 10 mg / mL
- Measurement temperature 120 ° C
- the number average molecular weight (Mn) of the polyolefin (A) is preferably 1,000 to 200,000, more preferably 1,500 to 100,000, and particularly preferably 1,500 to 100,000 from the viewpoint of the modifying effect of the block polymer (X). Is 2,000 to 50,000.
- the number average molecular weight (Mn) can be measured by GPC (gel permeation chromatography).
- the measurement conditions of Mn by GPC are as follows. -Device: High-temperature gel permeation chromatography ["AllianceGPCV2000", manufactured by Waters Corp.] ⁇ Detection device: Refractive index detector ⁇ Solvent: Ortodichlorobenzene ⁇ Reference substance: Polystyrene ⁇ Sample concentration: 3 mg / mL -Column stationary phase: PLgel 10 ⁇ m, MIXED-B 2 in series [Polymer Laboratories Co., Ltd.] ⁇ Column temperature: 135 °C
- the number of double bonds per 1,000 carbon atoms of the polyolefin (A) [the number of carbon-carbon double bonds in the molecular end and / or the molecular chain of the polyolefin (A)] is the block polymer (X) described later. ), From the viewpoint of productivity and reforming effect, the number is 0.01 to 8.0, preferably 0.5 to 7.0, and more preferably 1.0 to 5.0.
- the number of double bonds of the polyolefin (A) can be obtained from the 1 H-NMR spectrum of the polyolefin (A). That is, the peak in the above spectrum is assigned, and the number of double bonds of the polyolefin (A) is determined from the integrated value derived from the double bond and the integrated value derived from the polyolefin (A) at 4.5 to 6 ppm of the polyolefin (A).
- the relative value of the carbon number of the polyolefin (A) is obtained, and the number of double bonds in the molecular end and / or the molecular chain per 1,000 carbons of the polyolefin (A) is calculated.
- the calculation of the number of double bonds in the examples described later was performed according to the above method.
- Examples of the method for producing the polyolefin (A) include the following. (1) Method for thermally reducing the high molecular weight (preferably Mn of 60,000 to 1,000,000, more preferably Mn of 80,000 to 250,000) polyolefin (A0) (2) ⁇ -olefin Method of polymerizing in the presence of a polymerization catalyst
- (1) is preferable from the viewpoint of productivity.
- the heat-reducing method includes (1) heating the high-molecular-weight polyolefin (A0) in the absence of an organic peroxide at 300 to 450 ° C. for 0.1 to 10 hours, and (2) organic peroxide.
- a method of heating in the presence of a substance [for example, 2,5-dimethyl-2,5-di (t-butylperoxy) hexane] at 180 to 300 ° C. for 0.5 to 10 hours is included.
- the method (1) is preferable because it is easy to obtain one having a larger number of double bonds in the molecular terminal and / or the molecular chain.
- the polyolefin (B) contains an ⁇ -olefin having 3 to 8 carbon atoms as a constituent monomer, the isotacticity of the ⁇ -olefin moiety is 1 to 65%, and the number average molecular weight is 1,000 to 200. It is a 000 polyolefin.
- Examples of the ⁇ -olefin include propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene, and 1-octene.
- propylene, 1-butene, 1-hexene and 1-octene are preferable, and propylene and 1-butene are more preferable from the viewpoint of the modifying effect of the block polymer (X) described later.
- propylene is preferable.
- the polyolefin (B) may be composed of other monomers in addition to the ⁇ -olefin.
- the weight of the other monomers is preferably 80% by weight or less, more preferably 50% by weight or less, still more preferably 20% by weight. It is as follows.
- Examples of the other monomers constituting the polyolefin (B) include ethylene, 2-butene, C9-30 ⁇ -olefins (1-decene, 1-dodecene, etc.), and C4-30 other than ⁇ -olefins. Unsaturated monomers (eg, vinyl acetate) can be mentioned. Of the above other monomers, ethylene is preferable. Further, among the polyolefins (B), propylene / ethylene copolymer, propylene / 1-butene copolymer, ethylene / 1-octene copolymer are preferable, and propylene / ethylene copolymer is more preferable. ..
- the isotacticity of the ⁇ -olefin moiety of the polyolefin (B) is 1 to 65%, preferably 1 to 50%, and more preferably 1 to 50% from the viewpoint of the modification effect of the block polymer (X) described later. It is 1 to 35%.
- the isotacticity of the ⁇ -olefin moiety of the polyolefin (B) is described later as an acid-modified polyolefin (BE), a hydroxyl group-modified polyolefin (BG), an aminocarboxylic acid-modified polyolefin (BJ), an epoxy group-modified polyolefin (BQ), or an isocyanate.
- the isotacticity of the polyolefin (B) can be measured by 13 C-NMR in the same manner as the isotacticity of the polyolefin (A).
- the number average molecular weight (Mn) of the polyolefin (B) is preferably 1,000 to 200,000, more preferably 1,500 to 100,000, and particularly preferably 1,500 to 100,000 from the viewpoint of the modifying effect of the block polymer (X). Is 2,000 to 50,000.
- the Mn of the polyolefin (B) can be measured by GPC in the same manner as the Mn of the polyolefin (A).
- the number of double bonds per 1,000 carbon atoms of the polyolefin (B) [the number of carbon-carbon double bonds in the molecular end and / or the molecular chain of the polyolefin (B)] is the block polymer (X) described later. ),
- the number is preferably 0.01 to 8.0, more preferably 0.5 to 7.0, and particularly preferably 1.0 to 5.0.
- the number of double bonds per 1,000 carbon atoms of the polyolefin (B) can be measured by 1 H-NMR in the same manner as the number of double bonds per 1,000 carbon atoms of the polyolefin (A). ..
- a high molecular weight (preferably Mn of 60,000 to 1,000,000, more preferably Mn of 80,000 to 800,000) polyolefin (B0) is thermally reduced. There is a way to do it.
- the relationship between the polyolefin (B) and the polyolefin (B0) is similar to the relationship between the polyolefin (A) and the polyolefin (A0).
- the conditions of the production method for producing the polyolefin (B) from the polyolefin (B0) are the same as the conditions for the production method for producing the polyolefin (A) from the polyolefin (A0).
- the polyolefin (B) one type may be used alone, or two or more types may be used in combination.
- the block polymer (X) of the present invention is a block polymer having a polyolefin structure derived from the polyolefin (A) and a polyolefin structure derived from the polyolefin (B) as constituent units.
- the block polymer (X) of the present invention is useful as a modifier for a thermoplastic resin (Y) described later (particularly a modifier for a polyolefin resin), and the mechanical strength of the thermoplastic resin (Y) ( Tensile strength, bending strength, impact strength, etc.) can be improved. That is, the block polymer (X) is a block polymer having the polyolefin (A) and the polyolefin (B) as constituent units.
- the block polymer (X) of the present invention can be obtained, for example, by reacting the polyolefin (A) with the polyolefin (B). Such a method is also a method for producing the block polymer (X) of the present invention. A known method can be used in reacting the polyolefin (A) with the polyolefin (B). Further, in reacting the polyolefin (A) with the polyolefin (B), a binder ( ⁇ ) described later may be used.
- the weight ratio [(A) / (B)] of the polyolefin (A) in the block polymer (X) to the polyolefin (B) is preferably 5 from the viewpoint of the modifying effect of the block polymer (X). It is / 95 to 99/1, more preferably 10/90 to 90/10, and particularly preferably 25/75 to 75/25.
- the Mn (number average molecular weight) of the block polymer (X) is preferably 3,000 to 500,000, more preferably 4,000 to 300,000 from the viewpoint of the modifying effect and productivity of the block polymer (X). , Particularly preferably 5,000 to 150,000.
- the block polymer (X) may have a structure in which the polyolefin structure derived from the polyolefin (A) and the polyolefin structure derived from the polyolefin (B) are bonded via the following binder ( ⁇ ).
- H aminocarboxylic acid
- binders ( ⁇ ) at least one selected from the group consisting of unsaturated (poly) carboxylic acid (anhydride) (C), hydroxyl group-containing compound (F) and aminocarboxylic acid (H) is preferable. It is a combination with seeds.
- the Mn of the block polymer (X) and the structure of the block polymer (X) are Mn and weight of the polyolefin (A), Mn and weight of the polyolefin (B), the type and weight of the binder ( ⁇ ) described later, and reaction conditions. It can be adjusted as appropriate.
- Examples of the method for producing the block polymer (X) include an acid-modified polyolefin (AE), a hydroxyl group-modified polyolefin (AG), an aminocarboxylic acid-modified polyolefin (AJ), an isocyanate-based modified polyolefin (AM), and an epoxy-modifying property, which will be described later.
- AE acid-modified polyolefin
- AG hydroxyl group-modified polyolefin
- AJ aminocarboxylic acid-modified polyolefin
- AM isocyanate-based modified polyolefin
- epoxy-based modified polyolefin BQ
- the acid-modified polyolefin (AE) is, for example, a reaction product of the polyolefin (A) with an unsaturated (poly) carboxylic acid (anhydride) (C) or a carboxyl group-containing compound (K).
- the hydroxyl group-modified polyolefin (AG) is, for example, a reaction product of an acid-modified polyolefin (AE) and a hydroxyl group-containing compound (F) or a polyolefin (A) and a hydroxyl group-containing compound (F).
- the aminocarboxylic acid-modified polyolefin (AJ) is, for example, a reaction product of an acid-modified polyolefin (AE) and an aminocarboxylic acid (H).
- the isocyanate group-modified polyolefin (AM) is, for example, a reaction product of a hydroxyl group-modified polyolefin (AG) and an isocyanate group-containing compound (L).
- the epoxy group-modified polyolefin (AQ) is, for example, a reaction product of the polyolefin (A) and the epoxy group-containing compound (P).
- the acid-modified polyolefin (BE) is, for example, a reaction product of the polyolefin (B) with an unsaturated (poly) carboxylic acid (anhydride) (C) or a carboxyl group-containing compound (K).
- the hydroxyl group-modified polyolefin (BG) is, for example, a reaction product of an acid-modified polyolefin (BE) and a hydroxyl group-containing compound (F) or a polyolefin (B) and a hydroxyl group-containing compound (F).
- the aminocarboxylic acid-modified polyolefin (BJ) is, for example, a reaction product of an acid-modified polyolefin (BE) and an aminocarboxylic acid (H).
- the isocyanate group-modified polyolefin (BM) is, for example, a reaction product of a hydroxyl group-modified polyolefin (BG) and an isocyanate group-containing compound (L).
- the epoxy group-modified polyolefin (BQ) is, for example, a reaction product of the polyolefin (B) and the epoxy group-containing compound (P).
- the block polymer (X) of the present invention can be obtained, for example, by reacting the polyolefin (A) with the polyolefin (B) by a known method. Such a method is also a method for producing the block polymer (X) of the present invention. In reacting the polyolefin (A) with the polyolefin (B), the binder ( ⁇ ) may be used.
- Specific examples of the method for producing the block polymer (X) are as follows, for example. (1) The acid-modified polyolefin (AE) and the hydroxyl group-modified polyolefin (BG) are reacted. Here, an ester bond is formed. (2) The acid-modified polyolefin (BE) and the hydroxyl group-modified polyolefin (AG) are reacted. Here, an ester bond is formed. (3) The aminocarboxylic acid-modified polyolefin (AJ) and the hydroxyl group-modified polyolefin (BG) are reacted. Here, an amide bond and / or an imide bond and an ester bond are formed.
- the acid-modified polyolefin (AE) is, for example, a reaction product of the polyolefin (A) with an unsaturated (poly) carboxylic acid (anhydride) (C) or a carboxyl group-containing compound (K).
- the acid-modified polyolefin (BE) is, for example, a reaction product of the polyolefin (B) with an unsaturated (poly) carboxylic acid (anhydride) (C) or a carboxyl group-containing compound (K).
- a radical initiator (f) such as dicumylperoxide may be used.
- the unsaturated (poly) carboxylic acid (anhydrous) (C) is an unsaturated monocarboxylic acid, an unsaturated polycarboxylic acid and / or an unsaturated polycarboxylic acid anhydride.
- the unsaturated (poly) carboxylic acid (anhydrous) (C) is a monocarboxylic acid of C3 to 24 having one polymerizable unsaturated group and a polycarboxylic acid of C4 to 24 having one polymerizable unsaturated group. And / or a C4-24 polycarboxylic acid anhydride having one polymerizable unsaturated group is preferred.
- the unsaturated monocarboxylic acid includes aliphatic monocarboxylic acids (C3 to 24 such as acrylic acid, methacrylic acid, ⁇ -ethylacrylic acid, and croton. Acid, isocrotonic acid), alicyclic-containing monocarboxylic acid (C6-24, eg cyclohexenecarboxylic acid); unsaturated poly (2-3 or more) carboxylic acid or acid anhydride thereof, unsaturated dicarboxylic acid or its own.
- aliphatic monocarboxylic acids C3 to 24 such as acrylic acid, methacrylic acid, ⁇ -ethylacrylic acid, and croton. Acid, isocrotonic acid), alicyclic-containing monocarboxylic acid (C6-24, eg cyclohexenecarboxylic acid); unsaturated poly (2-3 or more) carboxylic acid or acid anhydride thereof, unsaturated dicarboxylic acid or its own.
- Acid anhydride aliphatic dicarboxylic acid or its acid anhydride (C4-24, for example, maleic acid, fumaric acid, itaconic acid, citraconic acid, mesaconic acid, and their acid anhydrides), alicyclic-containing dicarboxylic acid or its acid.
- Anhydrous C8-24, for example, cyclohexendicarboxylic acid, cycloheptenedicarboxylic acid, bicycloheptenedicarboxylic acid, methyltetrahydrophthalic acid, and acid anhydrides thereof) and the like] and the like.
- the unsaturated (poly) carboxylic acid (anhydride) (C) may be used alone or in combination of two or more.
- the unsaturated dicarboxylic acid anhydride is preferable from the viewpoint of reactivity with the polyolefin (A) and the polyolefin (B) and mechanical strength.
- Maleic anhydride is preferred.
- the carboxyl group-containing compound (K) does not have an unsaturated group, has at least one carboxyl group in the molecule, and can react with a polyolefin (A) or a polyolefin (B) in addition to the carboxyl group. Examples thereof include those having various functional groups. Examples of the carboxyl group-containing compound (K) include mercaptoacetic acid, 3-mercaptopropanoic acid, 2-mercaptopropanoic acid and the like. Of the carboxyl group-containing compound (K), mercaptoacetic acid is preferable.
- the acid value (mgKOH / g) of each of the acid-modified polyolefin (AE) and the acid-modified polyolefin (BE) is preferably 1 to 100 mgKOH / g, more preferably 1 to 100 mgKOH / g, from the viewpoint of the productivity of the block polymer (X). It is 3 to 75 mgKOH / g, particularly preferably 5 to 50 mgKOH / g.
- the acid value is a value measured according to JIS K0070 (1992).
- the acid value is the number of double bonds of the polyolefin (A) or the polyolefin (B), the weight of the polyolefin (A) or the polyolefin (B), or the unsaturated (poly) carboxylic acid (anhydride) (C). ) Or the type and weight of the carboxyl group-containing compound (K) can be appropriately adjusted.
- the hydroxyl-modified polyolefin (AG) is, for example, a reaction product of the acid-modified polyolefin (AE) and the hydroxyl group-containing compound (F), or a reaction product of the polyolefin (A) and the hydroxyl group-containing compound (F).
- the hydroxyl group-modified polyolefin (BG) is, for example, a reaction product of the acid-modified polyolefin (BE) and the hydroxyl group-containing compound (F), or a reaction product of the polyolefin (B) and the hydroxyl group-containing compound (F).
- the hydroxyl group-containing compound (F) has at least one hydroxyl group in the molecule and has an acid-modified polyolefin (AE), an acid-modified polyolefin (BE), a polyolefin (A) or a polyolefin (B) in addition to the hydroxyl group. ), And those having a functional group capable of reacting with) can be mentioned.
- Examples of the hydroxyl group-containing compound (F) include 2-aminoethanol, 3-aminopropanol, 4-aminobutanol, 2- or 3-hydropiperazine, 2-, 3- or 4-aminocyclohexanol, 2,-3.
- the hydroxyl value of each of the hydroxyl group-modified polyolefin (AG) and the hydroxyl group-modified polyolefin (BG) is preferably 1 to 100 mgKOH / g, more preferably 3 to 75 mgKOH / g, from the viewpoint of productivity of the block polymer (X). Particularly preferably, it is 5 to 50 mgKOH / g.
- the hydroxyl value is a value measured according to JIS K0070 (1992). The hydroxyl value can be appropriately adjusted depending on, for example, the type and weight of the acid-modified polyolefin (AE) and the acid-modified polyolefin (BE), and the type and weight of the hydroxyl group-containing compound (F).
- Epoxy group-modified polyolefin (AQ) is, for example, a reaction product of the polyolefin (A) and an epoxy group-containing compound (P).
- the epoxy group-modified polyolefin (BQ) is, for example, a reaction product of the polyolefin (B) and an epoxy group-containing compound (P).
- Examples of the epoxy group-containing compound (P) include those having at least one epoxy group in the molecule and having a functional group capable of reacting with the polyolefin (A) or the polyolefin (B) in addition to the epoxy group. Be done.
- Examples of the epoxy group-containing compound include glycidyl acrylate and glycidyl methacrylate.
- the epoxy equivalent (g / eq) of each of the epoxy group-modified polyolefin (AQ) and the epoxy group-modified polyolefin (BQ) is preferably 500 to 100,000 g / eq from the viewpoint of the productivity of the block polymer (X). It is more preferably 650 to 50,000 g / eq, and particularly preferably 800 to 20,000 g / eq.
- the epoxy equivalent is a value measured according to JIS K7236 (2001).
- the epoxy equivalent can be appropriately adjusted depending on the type and weight of the polyolefin (A) and the polyolefin (B), and the type and weight of the epoxy group-containing compound (P).
- the isocyanate group-modified polyolefin (AM) is, for example, a reaction product of the hydroxyl group-modified polyolefin (AG) and the isocyanate group-containing compound (L).
- the isocyanate group-modified polyolefin (BM) is, for example, a reaction product of the hydroxyl group-modified polyolefin (BG) and the isocyanate group-containing compound (L).
- the isocyanate group-containing compound (L) has at least one isocyanate group in the molecule.
- Examples of the isocyanate group-containing compound (L) include hexamethylene diisocyanate, diphenylmethane diisocyanate, and isophorone diisocyanate.
- the isocyanate group-modified polyolefin (AM), isocyanate group-modified polyolefin (BM), and the isocyanate group content (% by weight) of each are preferably 0.04 to 8.5 from the viewpoint of the productivity of the block polymer (X). %, More preferably 0.08 to 6.0%, and particularly preferably 0.2 to 5.0%.
- the isocyanate group content is a value measured according to JIS K1603-1 (2007).
- the isocyanate group content can be appropriately adjusted depending on the type and weight of the hydroxyl group-modified polyolefin (AG) and the hydroxyl group-modified polyolefin (BG), and the type and weight of the isocyanate group-containing compound (L).
- the aminocarboxylic acid-modified polyolefin (AJ) is, for example, a reaction product of the acid-modified polyolefin (AE) and an aminocarboxylic acid (H).
- the aminocarboxylic acid-modified polyolefin (BJ) is, for example, a reaction product of the acid-modified polyolefin (BE) and an aminocarboxylic acid (H).
- aminocarboxylic acid (H) examples include 12-aminododecanoic acid and 6-aminocaproic acid.
- the acid value (mgKOH / g) of each of the aminocarboxylic acid-modified polyolefin (AJ) and the aminocarboxylic acid-modified polyolefin (BJ) is preferably 1 to 100 mgKOH / g from the viewpoint of the productivity of the block polymer (X). , More preferably 3 to 75 mgKOH / g, and particularly preferably 5 to 50 mgKOH / g.
- the acid value can be appropriately adjusted depending on the type and weight of the acid-modified polyolefin (AE) and the acid-modified polyolefin (BE), and the type and weight of the aminocarboxylic acid (H).
- the block polymer (X) of the present invention imparts excellent mechanical strength (tensile strength, bending strength, impact strength) to the molded product of the thermoplastic resin composition (Z) described later. In addition, it imparts excellent mechanical strength to the recycled polyolefin resin (YR). Therefore, it can be suitably used as a modifier for thermoplastic resins, particularly as a modifier for polyolefin resins.
- thermoplastic resin composition (Z) of the present invention contains the block polymer (X) and the thermoplastic resin (Y).
- the weight ratio [(X) / (Y)] of the block polymer (X) and the thermoplastic resin (Y) in the thermoplastic resin composition (Z) of the present invention is the modification characteristics of the block polymer (X) and From the viewpoint of the mechanical strength of the molded product described later, it is preferably 1/99 to 50/50, more preferably 3/97 to 20/80.
- the thermoplastic resin (Y) includes other than the above (X), for example, a polyolefin resin [polypropylene, low density polyethylene, high density polyethylene], a polystyrene resin, a polyester resin, and a nylon resin. Of the above thermoplastic resins (Y), a polyolefin resin is preferable.
- the recycled polyolefin resin (YR) is also suitable as the thermoplastic resin (Y).
- the above (YR) is preferably a polyolefin resin that has been once molded and then crushed, crushed, pelletized, or the like.
- the Mn of the thermoplastic resin (Y) is preferably 10,000 to 1,000,000, more preferably 20,000 to 400, from the viewpoint of the mechanical strength of the molded product and the compatibility with the block polymer (X). It is 000, more preferably 80,000 to 300,000.
- thermoplastic resin composition (Z) of the present invention further comprises a filler (N1), a colorant (N2), a matting agent (N3), and an antistatic agent (N4) to the extent that the effect of the present invention is not impaired, if necessary.
- a filler N1
- a colorant N2
- a matting agent N3
- an antistatic agent N4
- Additive (N) can be contained.
- the filler (N1) examples include organic fillers (for example, wood flour and cellulose) and inorganic fillers (for example, calcium carbonate, talc, glass fiber and carbon fiber). Of these fillers (N1), an inorganic filler is preferable, and calcium carbonate is more preferable, from the viewpoint of mechanical strength.
- the amount of the filler (N1) used based on the total weight of the thermoplastic resin composition (Z) is preferably 3 to 70% by weight, more preferably 3 to 50% by weight, still more preferably 5 to 40% by weight.
- the total amount of the additives (N2) to (N10) used in the thermoplastic resin composition (Z) of the present invention is preferably 30% by weight or less based on the total weight of the block polymer (X). , 0.1 to 20% by weight is more preferable from the viewpoint of functional expression and industrial viewpoint of the additive (N).
- each additive (N) other than the filler (N1) based on the total weight of the thermoplastic resin composition (Z) is, for example, 10% by weight or less of the colorant (N2), more preferably 0. 1 to 5% by weight;
- the matting agent (N3) is, for example, 20% by weight or less, more preferably 0.1 to 10% by weight;
- the antistatic agent (N4) is, for example, 10% by weight or less, more preferably 0. 1 to 5% by weight;
- dispersant (N5) is, for example, 20% by weight or less, more preferably 0 to 15% by weight, still more preferably 0 to 10% by weight; flame retardant (N6) is, for example, 15% by weight or less.
- foaming agent (N7) is, for example, 1 to 20% by weight or less, more preferably 5 to 15% by weight; antioxidant (N8) is, for example, 3% by weight or less, more preferably. 0.01 to 1% by weight; UV absorber (N9) is, for example, 3% by weight or less, more preferably 0.01 to 1% by weight; Plastic agent (N10) is, for example, 20% by weight or less, more preferably 5. ⁇ 15% by weight.
- the amount of each additive exerting the corresponding additive effect is used regardless of the effect as the other additive.
- the amount used shall be adjusted according to the purpose of use, considering that the effects as other additives can be obtained at the same time.
- thermoplastic resin composition (Z) of the present invention As a method for producing the thermoplastic resin composition (Z) of the present invention, (1) A method of collectively mixing the total amount of the thermoplastic resin (Y) and the block polymer (X) and, if necessary, the additive (N) to form a resin composition (collective method); (2) A master containing a high concentration of the block polymer (X) by mixing a part of the thermoplastic resin (Y), the whole amount of the block polymer (X), and if necessary, a part or the whole amount of the additive (N). Examples thereof include a method (master batch method) in which a batch resin composition is once prepared, and then the remaining thermoplastic resin (Y) and, if necessary, the rest of the additive (N) are added and mixed to obtain a resin composition. From the viewpoint of mixing efficiency of the block polymer (X), the method (2) is preferable.
- the molded product of the present invention is a molded product of the above-mentioned thermoplastic resin composition (Z). That is, the molded product of the present invention is a molded product of the thermoplastic resin composition (Z) of the present invention.
- the molding method include injection molding, compression molding, calender molding, slush molding, rotary molding, extrusion molding, blow molding, film molding (casting method, tenter method, inflation method, etc.), and a single layer depending on the purpose. It can be molded by any method incorporating means such as molding, multi-layer molding or foam molding. Examples of the form of the molded product include plate-like, sheet-like, film, fiber (including non-woven fabric and the like) and the like.
- the part in the embodiment represents a weight part.
- Mn number average molecular weight
- the number of double bonds of the polyolefin the isotacticity
- the acid value the hydroxyl value
- the epoxy equivalent the isocyanate group content
- ⁇ Manufacturing example 13 100 parts of polyolefin (A-1) and 1 part of maleic anhydride (C-1) were charged in a reaction vessel, heated to 200 ° C. under nitrogen aeration, and stirred for 10 hours. Then, unreacted maleic anhydride was distilled off under reduced pressure (1.5 kPa) to obtain an acid-modified polyolefin (AE-1).
- the acid value of the acid-modified polyolefin (AE-1) was 2.0 mgKOH / g, and Mn was 30,100.
- ⁇ Manufacturing example 27 100 parts of acid-modified polyolefin (AE-1) and 1 part of 2-aminoethanol (F-1) were charged in the reaction vessel, heated to 180 ° C. under nitrogen aeration, and stirred for 10 hours. Then, stirring was continued under reduced pressure (1.5 kPa) for 10 hours to obtain a hydroxyl group-modified polyolefin (AG-1).
- the hydroxyl group-modified polyolefin (AG-1) had a hydroxyl value of 2.0 mgKOH / g and Mn of 30,000.
- ⁇ Manufacturing example 33 100 parts of acid-modified polyolefin (AE-3) and 10 parts of 12-aminododecanoic acid (H-1) were charged in the reaction vessel, heated to 180 ° C. under nitrogen aeration, and stirred for 10 hours. Then, stirring was continued under reduced pressure (1.5 kPa) for 10 hours to obtain an aminocarboxylic acid-modified polyolefin (AJ-3).
- the aminocarboxylic acid-modified polyolefin (AJ-3) had an acid value of 26.2 mgKOH / g and Mn of 3,500.
- Example 1 Eight parts of aminocarboxylic acid-modified polyolefin (AJ-3), 100 parts of hydroxyl group-modified polyolefin (BG-1), and 0.1 part of dibutyltin as an esterification catalyst were charged in a reaction vessel, and after nitrogen substitution, the temperature was 200 ° C. under nitrogen aeration. It was heated to a high temperature and melted. Stirring was continued at 200 ° C. for 3 hours. Then, after reacting under reduced pressure (1.5 kPa) for 5 hours, the mixture was taken out from the reaction vessel to obtain a block polymer (X-1). The Mn of the block polymer (X-1) was 62,000, the weight ratio [(A) / (B)] was 7/93, and the acid value was 0.01 mgKOH / g.
- Examples 2 to 5 The reaction was carried out in the same manner as in Example 1 except that the aminocarboxylic acid-modified polyolefin and the hydroxyl group-modified polyolefin were changed according to Table 7, to obtain block polymers (X-2) to (X-5). The results are shown in Table 7.
- Example 6 20 parts of isocyanate group-modified polyolefin (AM-2), 100 parts of hydroxyl group-modified polyolefin (BG-11), 200 parts of xylene, and 0.1 part of bismastris (2-ethylhexaate) as a urethanization catalyst were charged in the reaction vessel. After the substitution with nitrogen, the temperature was raised to 150 ° C. under nitrogen aeration to dissolve the mixture. Stirring was continued at 150 ° C. for 3 hours. Then, xylene was distilled off under reduced pressure (1.5 kPa) and then taken out from the reaction vessel to obtain a block polymer (X-6).
- the block polymer (X-6) had a Mn of 63,000, a weight ratio [(A) / (B)] of 16/84, and a hydroxyl value of 0.02 mgKOH / g.
- Example 7 The reaction was carried out in the same manner as in Example 6 except that the isocyanate group-modified polyolefin and the hydroxyl group-modified polyolefin were changed according to Table 7, to obtain a block polymer (X-7). The results are shown in Table 7.
- Example 8 100 parts of aminocarboxylic acid-modified polyolefin (BJ-3), 80 parts of epoxy group-modified polyolefin (AQ-3), and 0.1 part of epoxidation catalyst diazabicycloundecene were charged in a reaction vessel, and after nitrogen substitution, under nitrogen aeration. The temperature was raised to 150 ° C. to dissolve it. After stirring at 150 ° C. for 3 hours, the mixture was removed from the reaction vessel to obtain a block polymer (X-8).
- the block polymer (X-8) had an Mn of 11,000, a weight ratio [(A) / (B)] of 46/54, and an acid value of 0.01 mgKOH / g.
- Example 9 The reaction was carried out in the same manner as in Example 8 except that the aminocarboxylic acid-modified polyolefin and the epoxy group-modified polyolefin were changed according to Table 7, to obtain a block polymer (X-9). The results are shown in Table 7.
- Example 10 100 parts of acid-modified polyolefin (AE-15) and 130 parts of hydroxyl-modified polyolefin (BG-16) were charged in the reaction vessel, heated to 180 ° C. under nitrogen aeration, and stirred for 10 hours. Then, stirring was continued under reduced pressure (1.5 kPa, the same applies hereinafter) for 10 hours to obtain a block polymer (X-10).
- the block polymer (X-10) had a Mn of 355,000 and a weight ratio [(A) / (B)] of 43/57.
- Example 11 The reaction was carried out in the same manner as in Example 10 except that the hydroxyl group-modified polyolefin was changed according to Table 7, to obtain a block polymer (X-11). The results are shown in Table 7.
- thermoplastic resin compositions (CZ-1) to (CZ-4) were obtained by using polyolefin (A-1) instead of the block polymer (X) for comparison.
- ⁇ Evaluation method> (1) Tensile strength The measurement was performed in accordance with JIS K7161-2 (2014), and the tensile strength was evaluated. ⁇ Evaluation Criteria> (Examples 21 to 28, Comparative Example 21) ⁇ : 30 MPa or more ⁇ : 25 MPa or more and less than 30 MPa ⁇ : 20 MPa or more and less than 25 MPa ⁇ : less than 20 MPa
- thermoplastic resin (YR-1) Recycled polyolefin resin, trade name "PP crushed”, manufactured by Miki Resin Industry Co., Ltd.] according to the compounding composition (part) in Table 9.
- Each thermoplastic resin composition (Z-21) to (Z-31) was obtained by melt-kneading with a machine [trade name "KZW45TW”, manufactured by Technobel Co., Ltd.] at 230 ° C. and 100 rpm.
- a thermoplastic resin composition (CZ-21) was obtained by using polyolefin (A-1) instead of the block polymer (X) for comparison.
- injection molding is performed with an injection molding machine [trade name "PS40E5ASE”, manufactured by Nissei Resin Co., Ltd.] at a nozzle temperature of 230 ° C. and a mold temperature of 50 ° C. to prepare a test piece, and according to the evaluation method described later. evaluated.
- PS40E5ASE manufactured by Nissei Resin Co., Ltd.
- each block polymer (X), thermoplastic resin (Y), and filler (N1) is mixed at 230 ° C. with a twin-screw extruder [trade name “KZW45TW”, manufactured by Technobel Co., Ltd.]. , 100 rpm was melt-kneaded to obtain each thermoplastic resin composition (Z-41) to (Z-51).
- a thermoplastic resin composition (CZ-41) was obtained by using a polyolefin (A-1) instead of the block polymer (X) for comparison.
- injection molding is performed with an injection molding machine [trade name "PS40E5ASE", manufactured by Nissei Resin Co., Ltd.] at a nozzle temperature of 230 ° C. and a mold temperature of 50 ° C. to prepare a test piece, and according to the evaluation method described later. evaluated.
- PS40E5ASE manufactured by Nissei Resin Co., Ltd.
- the block polymer (X) of the present invention is useful as a modifier for the thermoplastic resin (Y), and improves the mechanical strength (tensile strength, bending strength, impact strength, etc.) of the thermoplastic resin (Y). be able to. Therefore, it is extremely useful for molded articles of various thermoplastic resins.
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Abstract
Description
ポリオレフィン(A):構成単量体として、炭素数3~8のα-オレフィンを含み、α-オレフィン部分のアイソタクティシティーが70~100%であって、数平均分子量が1,000~200,000であって、炭素数1000個当たりの炭素-炭素二重結合数が0.01~8.0;
ポリオレフィン(B):構成単量体として、炭素数3~8のα-オレフィンを含み、α-オレフィン部分のアイソタクティシティーが1~65%であって、数平均分子量が1,000~200,000;
(1)熱可塑性樹脂組成物(Z)の成形品に優れた改質効果(引張強度、曲げ強度、衝撃強度等の機械的強度の向上)を付与する。
(2)リサイクルポリオレフィン樹脂(YR)に優れた機械的強度を与える。
ポリオレフィン(A)は、構成単量体として、炭素数3~8のα-オレフィンを含み、α-オレフィン部分のアイソタクティシティーが70~100%であって、数平均分子量が1,000~200,000であって、炭素数1000個当たりの炭素-炭素二重結合数が0.01~8.0のポリオレフィンである。
上記α-オレフィンとしては、例えば、プロピレン、1-ブテン、1-ペンテン、1-ヘキセン、1-ヘプテン、1-オクテンが挙げられる。
上記α-オレフィンのうち、後述のアイソタクティシティーの観点から、好ましいのはプロピレンである。
また、上記ポリオレフィン(A)と後述のポリオレフィン(B)とは、α-オレフィン部分のアイソタクティシティーで区別できる。
上記その他の単量体のうち、好ましいのはエチレンである。また、ポリオレフィン(A)のうち好ましいのはプロピレン/エチレン共重合体である。
上記ポリオレフィン(A)のα-オレフィン部分のアイソタクティシティーは、ポリオレフィン(A)と後述の結合剤(γ)とが結合した酸変性ポリオレフィン(AE)、水酸基変性ポリオレフィン(AG)、アミノカルボン酸変性ポリオレフィン(AJ)、エポキシ基変性ポリオレフィン(AQ)、イソシアネート基変性ポリオレフィン(AM)のα-オレフィン部分のアイソタクティシティーに、そのまま反映される傾向がある。
アイソタクティシティー(%)=[(Ha)/Σ(H)]×100 (1)
・装置 : 日本電子(株)製 ECZ400R
・測定モード : プロトンデカップリング法
・パルス幅 : 8μsec
・パルス繰り返し時間 : 4.6sec
・緩和時間 : 3.0sec
・積算回数 : 10,000回
・溶媒 : オルトジクロロベンゼン
・基準物質 : テトラメチルシラン
・サンプル濃度 : 10mg/mL
・測定温度 : 120℃
本明細書において、GPCによるMnの測定条件は以下のとおりである。
・装置 :高温ゲルパーミエイションクロマトグラフィー
[「AllianceGPCV2000」、Waters(株)製]
・検出装置 :屈折率検出器
・溶媒 :オルトジクロロベンゼン
・基準物質 :ポリスチレン
・サンプル濃度 :3mg/mL
・カラム固定相 :PLgel10μm、MIXED-B2本直列
[ポリマーラボラトリーズ(株)製]
・カラム温度 :135℃
(1)高分子量(好ましくはMnが60,000~1,000,000、より好ましくはMnが80,000~250,000)ポリオレフィン(A0)を熱減成する方法
(2)α-オレフィンを重合触媒の存在下、重合する方法
これらのうち工業的な観点及びブロックポリマー(X)の生産性の観点から、分子末端及び/又は分子鎖中の二重結合数のより多いものが得やすい(1)の方法が好ましい。
さらに、高分子量ポリオレフィン(A0)のMnが小さい、熱減成温度が高い、又は熱減成時間が長いほど、ポリオレフィン(A)のMnは小さくなる傾向がある。
また、高分子量ポリオレフィン(A0)のアイソタクティシティーが大きいほど、ポリオレフィン(A)のアイソタクティシティーが大きい傾向がある。
なお、ポリオレフィン(A)は、1種を単独で使用してもよく、2種以上を併用してもよい。
ポリオレフィン(B)は、構成単量体として、炭素数3~8のα-オレフィンを含み、α-オレフィン部分のアイソタクティシティーが1~65%であって、数平均分子量が1,000~200,000のポリオレフィンである。
上記α-オレフィンのうち、後述のブロックポリマー(X)の改質効果の観点から、好ましいのはプロピレン、1-ブテン、1-ヘキセン、1-オクテンであり、さらに好ましいのはプロピレン、1-ブテンであり、とくに好ましいのはプロピレンである。
上記その他の単量体のうち、好ましいのはエチレンである。また、ポリオレフィン(B)のうち好ましいのはプロピレン/エチレン共重合体、プロピレン/1-ブテン共重合体、エチレン/1-オクテン共重合体であり、さらに好ましいのはプロピレン/エチレン共重合体である。
上記ポリオレフィン(B)のα-オレフィン部分のアイソタクティシティーは、後述の酸変性ポリオレフィン(BE)、水酸基変性ポリオレフィン(BG)、アミノカルボン酸変性ポリオレフィン(BJ)、エポキシ基変性ポリオレフィン(BQ)、イソシアネート基変性ポリオレフィン(BM)のα-オレフィン部分のアイソタクティシティーに、そのまま反映される傾向がある。
ポリオレフィン(B)のアイソタクティシティーは、上記ポリオレフィン(A)のアイソタクティシティーと同様に13C-NMRで測定することができる。
上記ポリオレフィン(B)のMnは、上記ポリオレフィン(A)のMnと同様にGPCで測定することができる。
ポリオレフィン(B)の炭素数1,000個当たりの二重結合数は、上記ポリオレフィン(A)の炭素数1,000個当たりの二重結合数と同様に1H-NMRで測定することができる。
ポリオレフィン(B)とポリオレフィン(B0)との関係は、ポリオレフィン(A)とポリオレフィン(A0)との関係と同様である。
また、ポリオレフィン(B0)からポリオレフィン(B)を製造する製造方法の条件は、ポリオレフィン(A0)からポリオレフィン(A)を製造する製造方法の条件と同様である。
なお、ポリオレフィン(B)は、1種を単独で使用してもよく、2種以上を併用してもよい。
本発明のブロックポリマー(X)は、上記ポリオレフィン(A)由来のポリオレフィン構造と、上記ポリオレフィン(B)由来のポリオレフィン構造とを構成単位として有するブロックポリマーである。
すなわち、ブロックポリマー(X)は、上記ポリオレフィン(A)と、上記ポリオレフィン(B)とを構成単位として有するブロックポリマーである。
結合剤(γ):不飽和(ポリ)カルボン酸(無水物)(C)、水酸基含有化合物(F)、エポキシ基含有化合物(P)、イソシアネート基含有化合物(L)、カルボキシル基含有化合物(K)及びアミノカルボン酸(H)からなる群から選ばれる少なくとも1種(好ましくは少なくとも2種)。
上記結合剤(γ)のうち、好ましいのは、不飽和(ポリ)カルボン酸(無水物)(C)と、水酸基含有化合物(F)及びアミノカルボン酸(H)からなる群から選ばれる少なくとも1種との組み合わせである。
(1):[(A)-(B)]n型ブロックポリマー(n=1~5)
(2):(A)-(B)-(A)型ブロックポリマー
(3):(B)-(A)-(B)型ブロックポリマー
水酸基変性ポリオレフィン(AG)は、例えば、酸変性ポリオレフィン(AE)と水酸基含有化合物(F)又は、ポリオレフィン(A)と水酸基含有化合物(F)との反応物である。
アミノカルボン酸変性ポリオレフィン(AJ)は、例えば、酸変性ポリオレフィン(AE)とアミノカルボン酸(H)との反応物である。
イソシアネート基変性ポリオレフィン(AM)は、例えば、水酸基変性ポリオレフィン(AG)とイソシアネート基含有化合物(L)との反応物である。
エポキシ基変性ポリオレフィン(AQ)は、例えば、ポリオレフィン(A)とエポキシ基含有化合物(P)との反応物である。
水酸基変性ポリオレフィン(BG)は、例えば、酸変性ポリオレフィン(BE)と水酸基含有化合物(F)又は、ポリオレフィン(B)と水酸基含有化合物(F)との反応物である。
アミノカルボン酸変性ポリオレフィン(BJ)は、例えば、酸変性ポリオレフィン(BE)とアミノカルボン酸(H)との反応物である。
イソシアネート基変性ポリオレフィン(BM)は、例えば、水酸基変性ポリオレフィン(BG)とイソシアネート基含有化合物(L)との反応物である。
エポキシ基変性ポリオレフィン(BQ)は、例えば、ポリオレフィン(B)とエポキシ基含有化合物(P)との反応物である。
(C)と(F)との組み合わせ、
(C)と(F)と(H)との組み合わせ、
(C)と(F)と(L)との組み合わせ、
(C)と(F)と(P)との組み合わせ、
(C)と(H)との組み合わせ、
(C)と(H)と(P)との組み合わせ、
(C)と(H)と(F)と(L)との組み合わせ、
(C)と(H)と(F)と(P)との組み合わせ、
(C)と(P)との組み合わせ、
(F)と(H)との組み合わせ、
(F)と(L)との組み合わせ、
(F)と(P)との組み合わせ、
(K)と(F)との組み合わせ、
(K)と(F)と(H)との組み合わせ、
(K)と(F)と(L)との組み合わせ、
(K)と(F)と(P)との組み合わせ、
とが挙げられる。
上記のうち、好ましいのは(C)と(F)と(H)との組み合わせである。
(1)酸変性ポリオレフィン(AE)と水酸基変性ポリオレフィン(BG)とを反応させる。ここではエステル結合が形成している。
(2)酸変性ポリオレフィン(BE)と水酸基変性ポリオレフィン(AG)とを反応させる。ここではエステル結合が形成している。
(3)アミノカルボン酸変性ポリオレフィン(AJ)と水酸基変性ポリオレフィン(BG)とを反応させる。ここではアミド結合及び/又はイミド結合とエステル結合とが形成している。
(4)アミノカルボン酸変性ポリオレフィン(BJ)と水酸基変性ポリオレフィン(AG)とを反応させる。ここではアミド結合及び/又はイミド結合とエステル結合とが形成している。
(6)水酸基変性ポリオレフィン(BG)とイソシアネート基変性ポリオレフィン(AM)とを反応させる。ここではアミド結合及び/又はイミド結合とウレタン結合とが形成している。
(7)酸変性ポリオレフィン(AE)とエポキシ基変性ポリオレフィン(BQ)とを反応させる。ここではエステル結合が形成している。
(8)酸変性ポリオレフィン(BE)とエポキシ基変性ポリオレフィン(AQ)とを反応させる。ここではエステル結合が形成している。
(10)アミノカルボン酸変性ポリオレフィン(BJ)とエポキシ基変性ポリオレフィン(AQ)とを反応させる。ここではアミド結合及び/又はイミド結合とエステル結合が形成している。
(11)水酸基変性ポリオレフィン(AG)とエポキシ基変性ポリオレフィン(BQ)とを反応させる。ここではエーテル結合が形成している。
(12)水酸基変性ポリオレフィン(BG)とエポキシ基変性ポリオレフィン(AQ)とを反応させる。ここではエーテル結合が形成している。
上記酸変性ポリオレフィン(AE)は、例えば、ポリオレフィン(A)と不飽和(ポリ)カルボン酸(無水物)(C)又はカルボキシル基含有化合物(K)との反応物である。
また、上記酸変性ポリオレフィン(BE)は、例えば、ポリオレフィン(B)と不飽和(ポリ)カルボン酸(無水物)(C)又はカルボキシル基含有化合物(K)との反応物である。
上記反応において、ジクミルパーオキシド等のラジカル開始剤(f)を使用してもよい。
上記不飽和(ポリ)カルボン酸(無水物)(C)は、重合性不飽和基を1個有するC3~24のモノカルボン酸、重合性不飽和基を1個有するC4~24のポリカルボン酸及び/又は重合性不飽和基を1個有するC4~24のポリカルボン酸無水物であることが好ましい。
カルボキシル基含有化合物(K)としては、例えば、メルカプト酢酸、3-メルカプトプロパン酸、2-メルカプトプロパン酸等が挙げられる。
上記カルボキシル基含有化合物(K)のうち、好ましいのはメルカプト酢酸である。
また、上記酸価は、ポリオレフィン(A)又はポリオレフィン(B)の有する二重結合数、ポリオレフィン(A)もしくはポリオレフィン(B)の重量、又は、不飽和(ポリ)カルボン酸(無水物)(C)もしくはカルボキシル基含有化合物(K)の種類、重量により、適宜調整可能である。
上記水酸基変性ポリオレフィン(AG)は、例えば、上記酸変性ポリオレフィン(AE)と水酸基含有化合物(F)との反応物、ポリオレフィン(A)と水酸基含有化合物(F)との反応物である。
上記水酸基変性ポリオレフィン(BG)は、例えば、上記酸変性ポリオレフィン(BE)と水酸基含有化合物(F)との反応物、ポリオレフィン(B)と水酸基含有化合物(F)との反応物である。
水酸基含有化合物(F)としては、例えば、2-アミノエタノール、3-アミノプロパノール、4-アミノブタノール、2-又は3-ヒドロピペラジン、2-、3-又は4-アミノシクロヘキサノール、2-、3-又は4-アミノフェノール、2-又は3-アミノ-p-クレゾール、2-又は4-アミノ-m-クレゾール、3-又は4-アミノ-o-クレゾール、2-メルカプトエタノールなどが挙げられる。
上記(F)のうち、反応性の観点から、好ましいのは2-アミノエタノール、3-アミノプロパノール、4-アミノブタノール、2-メルカプトエタノールであり、さらに好ましいのは2-アミノエタノール、2-メルカプトエタノールである。
上記水酸基価は、例えば、上記酸変性ポリオレフィン(AE)及び上記酸変性ポリオレフィン(BE)の種類、重量、並びに、上記水酸基含有化合物(F)の種類、重量により、適宜調整可能である。
上記エポキシ基変性ポリオレフィン(AQ)は、例えば、上記ポリオレフィン(A)とエポキシ基含有化合物(P)との反応物である。
また、上記エポキシ基変性ポリオレフィン(BQ)は、例えば、上記ポリオレフィン(B)とエポキシ基含有化合物(P)との反応物である。
上記エポキシ当量は、上記ポリオレフィン(A)及び上記ポリオレフィン(B)の種類、重量、並びに、上記エポキシ基含有化合物(P)の種類、重量により、適宜調整可能である。
上記イソシアネート基変性ポリオレフィン(AM)は、例えば、上記水酸基変性ポリオレフィン(AG)とイソシアネート基含有化合物(L)との反応物である。
また、上記イソシアネート基変性ポリオレフィン(BM)は、例えば、上記水酸基変性ポリオレフィン(BG)とイソシアネート基含有化合物(L)との反応物である。
上記イソシアネート基含有化合物(L)としては、ヘキサメチレンジイソシアネート、ジフェニルメタンジイソシアネート、イソホロンジイソシアネートなどが挙げられる。
上記イソシアネート基含有率は、上記水酸基変性ポリオレフィン(AG)及び上記水酸基変性ポリオレフィン(BG)の種類、重量、並びに、上記イソシアネート基含有化合物(L)の種類、重量により、適宜調整可能である。
上記アミノカルボン酸変性ポリオレフィン(AJ)は、例えば、上記酸変性ポリオレフィン(AE)とアミノカルボン酸(H)との反応物である。
また、上記アミノカルボン酸変性ポリオレフィン(BJ)は、例えば、上記酸変性ポリオレフィン(BE)とアミノカルボン酸(H)との反応物である。
上記酸価は、上記酸変性ポリオレフィン(AE)及び上記酸変性ポリオレフィン(BE)の種類、重量、並びに、上記アミノカルボン酸(H)の種類、重量により、適宜調整可能である。
そのため、熱可塑性樹脂用改質剤、とりわけポリオレフィン樹脂用改質剤として好適に使用できる。
本発明の熱可塑性樹脂組成物(Z)は、上記ブロックポリマー(X)と、熱可塑性樹脂(Y)とを含有してなる。
上記熱可塑性樹脂(Y)のうち、好ましいのはポリオレフィン樹脂である。
これらのフィラー(N1)のうち、機械的強度の観点から、好ましいのは無機フィラー、さらに好ましいのは炭酸カルシウムである。熱可塑性樹脂組成物(Z)の全重量に基づくフィラー(N1)の使用量は、好ましくは3~70重量%、より好ましくは3~50重量%、さらに好ましくは5~40重量%である。
(1)熱可塑性樹脂(Y)及びブロックポリマー(X)の全量並びに必要により添加剤(N)を一括混合して樹脂組成物とする方法(一括法);
(2)熱可塑性樹脂(Y)の一部、ブロックポリマー(X)の全量、及び必要により添加剤(N)の一部もしくは全量を混合して高濃度のブロックポリマー(X)を含有するマスターバッチ樹脂組成物を一旦作成し、その後残りの熱可塑性樹脂(Y)及び必要により添加剤(N)の残りを加えて混合して樹脂組成物とする方法(マスターバッチ法)が挙げられる。
ブロックポリマー(X)の混合効率の観点から、好ましいのは(2)の方法である。
本発明の成形品は、上記熱可塑性樹脂組成物(Z)の成形物である。すなわち本発明の成形品は、本発明の熱可塑性樹脂組成物(Z)を成形したものである。
成形方法としては、射出成形、圧縮成形、カレンダ成形、スラッシュ成形、回転成形、押出成形、ブロー成形、フィルム成形(キャスト法、テンター法、インフレーション法等)等が挙げられ、目的に応じて単層成形、多層成形あるいは発泡成形等の手段も取り入れた任意の方法で成形できる。成形品の形態としては、板状、シート状、フィルム、繊維(不織布等も含む)等が挙げられる。
反応容器に、高分子量ポリオレフィン(A0-1)[商品名「サンアロマーPZA20A」、サンアロマー(株)製。]100部を仕込み、液相に窒素通気しながら、マントルヒーターにて加熱溶融し、撹拌しながら350℃で15分間の条件で、熱減成を行い、ポリオレフィン(A-1)を得た。
なお、ポリオレフィン(A-1)のMnは30,000、炭素1,000個当たりの分子末端及び/又は分子鎖中の二重結合数は0.5個、アイソタクティシティーは95%であった。
表1に従って高分子量ポリオレフィン(A0)及び熱減成条件(温度、時間)を変更した以外は、製造例1と同様に熱減成を行い、各ポリオレフィン(A-2)~(A-5)を得た。結果を表1に示す。
反応容器に、高分子量ポリオレフィン(B0-1)[商品名「Vistamaxx6102」、ExxonMobil社製。]100部を仕込み、液相に窒素通気しながら、マントルヒーターにて加熱溶融し、撹拌しながら350℃で10分間の条件で、熱減成を行い、ポリオレフィン(B-1)を得た。
なお、ポリオレフィン(B-1)のMnは30,000、炭素1,000個当たりの分子末端及び/又は分子鎖中の二重結合数は0.5個、アイソタクティシティーは28%であった。
表1に従って高分子量ポリオレフィン(B0)及び熱減成条件(温度、時間)を変更した以外は、製造例6と同様に熱減成を行い、各ポリオレフィン(B-2)~(B-7)を得た。結果を表1に示す。
反応容器に、ポリオレフィン(A-1)100部、無水マレイン酸(C-1)1部を仕込み、窒素通気下、200℃まで加熱昇温して10時間撹拌を続けた。その後、減圧下(1.5kPa)で未反応の無水マレイン酸を留去して、酸変性ポリオレフィン(AE-1)を得た。
なお、酸変性ポリオレフィン(AE-1)は、酸価は2.0mgKOH/g、Mnは30,100であった。
表2に従って、ポリオレフィン、不飽和(ポリ)カルボン酸(無水物)(C)、ラジカル開始剤(f)を変更した以外は、製造例13と同様に反応を行い、各酸変性ポリオレフィン(AE-2)~(AE-4)、(BE-1)~(BE-5)を得た。結果を表2に示す。
反応容器に、ポリオレフィン(A-5)100部、メルカプト酢酸(K-1)1部を仕込み、キシレン200部を仕込み、窒素通気下、160℃まで加熱昇温して、ジクミルパーオキシド(f-1)1部を仕込み、10時間撹拌を続けた。その後、減圧下(1.5kPa)でキシレン、未反応のメルカプト酢酸を留去して、酸変性ポリオレフィン(AE-15)を得た。
なお、酸変性ポリオレフィン(AE-15)は、酸価は0.3mgKOH/g、Mnは180,100であった。
表2に従って、ポリオレフィン、ラジカル開始剤(f)を変更した以外は、製造例22と同様に反応を行い、各酸変性ポリオレフィン(BE-16)~(BE-17)を得た。結果を表2に示す。
反応容器に、ポリオレフィン(A-3)100部、グリシジルメタクリレート(P-1)7部を仕込み、窒素通気下、200℃まで加熱昇温して10時間撹拌を続けた。その後、減圧下(1.5kPa)で未反応のグリシジルメタクリレート(P-1)を留去して、エポキシ基変性ポリオレフィン(AQ-3)を得た。
なお、エポキシ基変性ポリオレフィン(AQ-3)のエポキシ当量は2200g/eq、Mnは3,200であった。
表3に従って、ポリオレフィン、ラジカル開始剤(f)を変更した以外は、製造例25と同様に反応を行い、エポキシ基変性ポリオレフィン(BQ-3)を得た。結果を表3に示す。
反応容器に、酸変性ポリオレフィン(AE-1)100部、2-アミノエタノール(F-1)1部を仕込み、窒素通気下、180℃まで加熱昇温して10時間撹拌を続けた。その後、減圧下(1.5kPa)で10時間撹拌を続け、水酸基変性ポリオレフィン(AG-1)を得た。
なお、水酸基変性ポリオレフィン(AG-1)は、水酸基価は2.0mgKOH/g、Mnは30,000であった。
表4に従って、酸変性ポリオレフィン(AE)、酸変性ポリオレフィン(BE)を変更した以外は、製造例27と同様に反応を行い、各水酸基変性ポリオレフィン(AG-2)、(BG-1)~(BG-2)、(BG-16)~(BG-17)を得た。結果を表4に示す。
反応容器に、酸変性ポリオレフィン(AE-3)100部、12-アミノドデカン酸(H-1)10部を仕込み、窒素通気下、180℃まで加熱昇温して10時間撹拌を続けた。その後、減圧下(1.5kPa)で10時間撹拌を続け、アミノカルボン酸変性ポリオレフィン(AJ-3)を得た。
なお、アミノカルボン酸変性ポリオレフィン(AJ-3)は、酸価は26.2mgKOH/g、Mnは3,500であった。
表4に従って酸変性ポリオレフィン(AE)、酸変性ポリオレフィン(BE)、アミノカルボン酸(H)を変更した以外は、製造例33と同様に反応を行い、各アミノカルボン酸変性ポリオレフィン(AJ-4)、(BJ-3)~(BJ-5)を得た。結果を表4に示す。
反応容器に、ポリオレフィン(A-1)100部、2-メルカプトエタノール(F-2)2部、キシレン200部を仕込み、窒素通気下、160℃まで加熱昇温して、ジクミルパーオキシド(f-1)1部を仕込み、10時間撹拌を続けた。その後、減圧下(1.5kPa)でキシレン、未反応の2-メルカプトエタノール(F-2)を留去して、水酸基変性ポリオレフィン(AG-11)を得た。
なお、水酸基変性ポリオレフィン(AG-11)は、水酸基価は2.0mgKOH/g、Mnは30,100であった。
表5に従って、ポリオレフィン、ラジカル開始剤(f)を変更した以外は、製造例38と同様に反応を行い、水酸基変性ポリオレフィン(BG-11)を得た。結果を表5に示す。
反応容器に、水酸基変性ポリオレフィン(AG-2)100部、ヘキサメチレンジイソシアネート(L-1)8部、キシレン200部を仕込み、窒素通気下、150℃まで加熱昇温して、10時間撹拌を続けた。その後、減圧下(1.5kPa)でキシレン、未反応のヘキサメチレンジイソシアネート(L-1)を留去して、イソシアネート基変性ポリオレフィン(AM-2)を得た。
なお、イソシアネート基変性ポリオレフィン(AM-2)のイソシアネート基含有率は0.78%、Mnは10,600であった。
表6に従って、水酸基変性ポリオレフィン、イソシアネート基含有化合物(L)を変更した以外は、製造例38と同様に反応を行い、イソシアネート基変性ポリオレフィン(BM-3)を得た。結果を表6に示す。
反応容器にアミノカルボン酸変性ポリオレフィン(AJ-3)8部、水酸基変性ポリオレフィン(BG-1)100部、エステル化触媒としてジブチル錫0.1部を仕込み、窒素置換後、窒素通気下に200℃まで加熱昇温して溶解させた。200℃で3時間撹拌を続けた。その後、減圧下(1.5kPa)で5時間反応したのち反応容器から取り出し、ブロックポリマー(X-1)を得た。
なお、ブロックポリマー(X-1)のMnは62,000、重量比[(A)/(B)]は7/93、酸価は0.01mgKOH/gであった。
表7に従って、アミノカルボン酸変性ポリオレフィン、水酸基変性ポリオレフィンを変更した以外は、実施例1と同様に反応を行い、各ブロックポリマー(X-2)~(X-5)を得た。結果を表7に示す。
反応容器にイソシアネート基変性ポリオレフィン(AM-2)20部、水酸基変性ポリオレフィン(BG-11)100部、キシレン200部、ウレタン化触媒としてビスマストリス(2-エチルヘキサエート)0.1部を仕込み、窒素置換後、窒素通気下に150℃まで加熱昇温して溶解させた。150℃で3時間撹拌を続けた。その後、減圧下(1.5kPa)でキシレンを留去したのち反応容器から取り出し、ブロックポリマー(X-6)を得た。
なお、ブロックポリマー(X-6)は、Mnは63,000、重量比[(A)/(B)]は16/84、水酸基価は0.02mgKOH/gであった。
表7に従って、イソシアネート基変性ポリオレフィン、水酸基変性ポリオレフィンを変更した以外は、実施例6と同様に反応を行い、ブロックポリマー(X-7)を得た。結果を表7に示す。
反応容器にアミノカルボン酸変性ポリオレフィン(BJ-3)100部、エポキシ基変性ポリオレフィン(AQ-3)80部、エポキシ化触媒ジアザビシクロウンデセン0.1部を仕込み、窒素置換後、窒素通気下に150℃まで加熱昇温して溶解させた。150℃で3時間撹拌を続けたのち反応容器から取り出し、ブロックポリマー(X-8)を得た。
なお、ブロックポリマー(X-8)は、Mnは11,000、重量比[(A)/(B)]は46/54、酸価は0.01mgKOH/gであった。
表7に従って、アミノカルボン酸変性ポリオレフィン、エポキシ基変性ポリオレフィンを変更した以外は、実施例8と同様に反応を行い、ブロックポリマー(X-9)を得た。結果を表7に示す。
反応容器に、酸変性ポリオレフィン(AE-15)100部、水酸基変性ポリオレフィン(BG-16)130部を仕込み、窒素通気下、180℃まで加熱昇温して10時間撹拌を続けた。その後、減圧下(1.5kPa、以下同じ。)10時間撹拌を続け、ブロックポリマー(X-10)を得た。
なお、ブロックポリマー(X-10)は、Mnは355,000、重量比[(A)/(B)]は43/57であった。
表7に従って、水酸基変性ポリオレフィンを変更した以外は、実施例10と同様に反応を行い、ブロックポリマー(X-11)を得た。結果を表7に示す。
表8の配合組成(部)に従って、各ブロックポリマー(X)、熱可塑性樹脂(Y)を2軸押出機[商品名「KZW45TW」、テクノベル(株)製]で230℃、100rpmの条件で溶融混練し、各熱可塑性樹脂組成物(Z-1)~(Z-11)を得た。
比較例21~24では、比較のためブロックポリマー(X)に替えてポリオレフィン(A-1)を用いて熱可塑性樹脂組成物(CZ-1)~(CZ-4)を得た。
各熱可塑性樹脂組成物(Z-1)~(Z-11)、(CZ-1)~(CZ-4)を、射出成形機[商品名「PS40E5ASE」、日精樹脂(株)製]でノズル温度230℃、金型温度50℃で射出成形し後述の評価方法に従って評価した。結果を表8に示す。
(1)引張強度
JIS K7161-2(2014)に準拠して測定し、引張強度の評価を行った。
<評価基準>(実施例21~28、比較例21)
◎:30MPa以上
○:25MPa以上30MPa未満
△:20MPa以上25MPa未満
×:20MPa未満
◎:25MPa以上
○:20MPa以上25MPa未満
△:15MPa以上20MPa未満
×:15MPa未満
◎:20MPa以上
○:15MPa以上20MPa未満
△:10MPa以上15MPa未満
×:10MPa未満
アイゾット衝撃強度をJIS K7110(1999)に準拠して測定した。
<評価基準>(実施例21~28、比較例21)
◎:3.0kJ/m2以上
○:1.5kJ/m2以上3.0kJ/m2未満
△:1.0kJ/m2以上1.5kJ/m2未満
×:1.0kJ/m2未満
◎:10.0kJ/m2以上
○:5.0kkJ/m2以上10.0kJ/m2未満
△:1.0kJ/m2以上5.0kJ/m2未満
×:1.0kJ/m2未満
◎:2.0kJ/m2以上
○:1.5kJ/m2以上2.0kJ/m2未満
△:1.0kJ/m2以上1.5kJ/m2未満
×:1.0kJ/m2未満
表9の配合組成(部)に従って、各ブロックポリマー(X)、熱可塑性樹脂(YR-1)[リサイクルポリオレフィン樹脂、商品名「PP粉砕」、三木樹脂工業(株)製]を、2軸押出機[商品名「KZW45TW」、テクノベル(株)製]で230℃、100rpmの条件で溶融混練して、各熱可塑性樹脂組成物(Z-21)~(Z-31)を得た。
比較例41では、比較のためブロックポリマー(X)に替えてポリオレフィン(A-1)を用いて熱可塑性樹脂組成物(CZ-21)を得た。
さらに、ペレット化した後、射出成形機[商品名「PS40E5ASE」、日精樹脂(株)製]でノズル温度230℃、金型温度50℃で射出成形し試験片を作成し、後述の評価方法に従って評価した。結果を表9に示す。
JIS K7161-2(2014)に準拠して測定し、引張強度の評価を行った。
<評価基準>
◎:25MPa以上
○:20MPa以上25MPa未満
△:15MPa以上20MPa未満
×:15MPa未満
(2)耐衝撃性
アイゾット衝撃強度をJIS K7110(1999)に準拠して測定した。
<評価基準>
◎:2.5kJ/m2以上
○:1.2kJ/m2以上2.5kJ/m2未満
△:0.8kJ/m2以上1.2kJ/m2未満
×:0.8kJ/m2未満
表10の配合組成(部)に従って、各ブロックポリマー(X)、熱可塑性樹脂(Y)、フィラー(N1)を、2軸押出機[商品名「KZW45TW」、テクノベル(株)製]で230℃、100rpmの条件で溶融混練して、各熱可塑性樹脂組成物(Z-41)~(Z-51)を得た。
比較例61では、比較のためブロックポリマー(X)に替えてポリオレフィン(A-1)を用いて熱可塑性樹脂組成物(CZ-41)を得た。
さらに、ペレット化した後、射出成形機[商品名「PS40E5ASE」、日精樹脂(株)製]でノズル温度230℃、金型温度50℃で射出成形し試験片を作成し、後述の評価方法に従って評価した。結果を表10に示す。
JIS K7171(2016)に準拠して測定し、曲げ強度の評価を行った。(単位:MPa)
(2)耐衝撃性
シャルピー衝撃値をASTM D6110に準拠して測定した。(単位:J/m)
Claims (8)
- 下記ポリオレフィン(A)由来のポリオレフィン構造と、下記ポリオレフィン(B)由来のポリオレフィン構造とを構成単位として有するブロックポリマー(X)。
ポリオレフィン(A):構成単量体として、炭素数3~8のα-オレフィンを含み、α-オレフィン部分のアイソタクティシティーが70~100%であって、数平均分子量が1,000~200,000であって、炭素数1000個当たりの炭素-炭素二重結合数が0.01~8.0;
ポリオレフィン(B):構成単量体として、炭素数3~8のα-オレフィンを含み、α-オレフィン部分のアイソタクティシティーが1~65%であって、数平均分子量が1,000~200,000; - 前記ポリオレフィン(A)と前記ポリオレフィン(B)との重量比[(A)/(B)]が、5/95~99/1である請求項1記載のブロックポリマー(X)。
- 数平均分子量が3,000~500,000である請求項1又は2記載のブロックポリマー(X)。
- 前記ポリオレフィン(A)由来のポリオレフィン構造と、前記ポリオレフィン(B)由来のポリオレフィン構造とが、下記結合剤(γ)を介して結合した構造である請求項1~3のいずれか記載のブロックポリマー(X)。
結合剤(γ):不飽和(ポリ)カルボン酸(無水物)(C)、水酸基含有化合物(F)、エポキシ基含有化合物(P)、イソシアネート基含有化合物(L)、カルボキシル基含有化合物(K)及びアミノカルボン酸(H)からなる群から選ばれる少なくとも1種; - 請求項1~4のいずれか記載のブロックポリマー(X)と、熱可塑性樹脂(Y)とを含有してなる熱可塑性樹脂組成物(Z)。
- 前記ブロックポリマー(X)と、前記熱可塑性樹脂(Y)との重量比[(X)/(Y)]が、1/99~50/50である請求項5記載の熱可塑性樹脂組成物(Z)。
- さらに、フィラー(N1)を含有してなり、熱可塑性樹脂組成物の重量に基づいて、前記フィラー(N1)の重量が3~50重量%である請求項5又は6記載の熱可塑性樹脂組成物(Z)。
- 請求項5~7のいずれか記載の熱可塑性樹脂組成物(Z)を成形した成形品。
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- 2021-10-13 CN CN202180071223.5A patent/CN116406387A/zh active Pending
- 2021-10-13 EP EP21882683.2A patent/EP4234610A1/en active Pending
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