WO2009139350A1 - ポリオレフィン系樹脂組成物 - Google Patents
ポリオレフィン系樹脂組成物 Download PDFInfo
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- WO2009139350A1 WO2009139350A1 PCT/JP2009/058767 JP2009058767W WO2009139350A1 WO 2009139350 A1 WO2009139350 A1 WO 2009139350A1 JP 2009058767 W JP2009058767 W JP 2009058767W WO 2009139350 A1 WO2009139350 A1 WO 2009139350A1
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- polyolefin resin
- mass
- compound
- metal salt
- parts
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- 0 *C(c1cc(*)cc(*)c1O1)c(cc(*)cc2*)c2OP1(ON)=O Chemical compound *C(c1cc(*)cc(*)c1O1)c(cc(*)cc2*)c2OP1(ON)=O 0.000 description 1
Classifications
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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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C08K5/156—Heterocyclic compounds having oxygen in the ring having two oxygen atoms in the ring
- C08K5/1575—Six-membered rings
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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
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/527—Cyclic esters
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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
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0083—Nucleating agents promoting the crystallisation of the polymer matrix
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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
Definitions
- the present invention relates to a polyolefin resin composition, and more particularly to a polyolefin resin composition having improved transparency by adding a predetermined compound.
- the present invention also relates to a crystal nucleating agent composition for polyolefin resin and a polyolefin resin composition formed by blending the same, and more specifically, provides a polyolefin resin composition having excellent transparency, and the flow as a powder.
- the present invention relates to a crystal nucleating agent composition for polyolefin resin having excellent properties and a polyolefin resin composition comprising the same.
- Polyolefin resins have the advantage of being excellent in molding processability, heat resistance, mechanical properties, low specific gravity and the like, and are widely used for films, sheets and various molded products (structural parts, etc.). However, since polyolefin resin has a slow crystallization rate after molding, molding cycle properties are low, and large crystals are generated by the progress of crystallization after heat molding, resulting in insufficient transparency and strength. .
- a crystal nucleating agent or a crystallization accelerator for this purpose, it is known to add a crystal nucleating agent or a crystallization accelerator.
- a crystal nucleating agent or a crystallization accelerator Conventionally, sodium benzoate, 4-tert-butylaluminum benzoate, sodium adipate and disodium bicyclo [2 2.1] Metal salt of carboxylic acid such as heptane-2,3-dicarboxylate, sodium bis (4-tert-butylphenyl) phosphate, sodium-2,2′-methylenebis (4,6-ditert-butyl) Phosphoric acid ester metal salts such as phenyl) phosphate and lithium-2,2′-methylenebis (4,6-ditert-butylphenyl) phosphate, dibenzylidene sorbitol, bis (methylbenzylidene) sorbitol, bis (dimethylbenzylidene) sorbitol, etc.
- Patent Document 1 Patent Document 2 and the like propose dibenzylidene sorbitol compounds
- Patent Document 3 Patent Document 4
- Patent Document 5 disclose dibenzylidene sorbitol compounds having a substituent on the benzene ring.
- Patent Document 6 proposes an acetal compound having a substituted aryl group.
- Patent Document 7 Patent Document 8
- Patent Document 9 Patent Document 10 propose metal salts of cyclic phosphate esters of alkylidene bisphenols.
- Patent Document 11 and Patent Document 12 include a crystalline propylene polymer, a phosphate compound, and dibenzylidene sorbitol. It has been proposed to use a compound in combination, and Patent Document 13 proposes the combined use of a dibenzylidene sorbitol derivative and a metal salt of an aromatic organophosphate for a crystalline synthetic resin.
- Benzylidene sorbitol compounds are used as crystal nucleating agents that can greatly improve the optical properties of molded products obtained by molding polyolefin resins, especially transparency, but require higher transparency. The field did not fully satisfy the request.
- Patent Document 11 proposes to use a crystalline propylene polymer in combination with a cyclic phosphate metal salt and bis (4-alkylbenzylidene) sorbitol.
- Patent Document 12 proposes to use a crystalline propylene polymer in combination with an aromatic phosphate metal salt and a dibenzylidene sorbitol compound, and
- Patent Document 13 discloses a crystalline property. It has been proposed to use a synthetic resin in combination with a dibenzylidene sorbitol derivative and an aromatic organophosphate metal salt.
- Patent Documents 11 to 13 are not satisfactory in practical use, and further improvement in transparency has been demanded. Further, these nucleating agent compositions have poor fluidity as powders, and improvement in fluidity has been demanded from the viewpoints of transportability, workability, and meterability.
- an object of the present invention is to solve the above-mentioned problems of the prior art and provide a polyolefin resin composition having excellent transparency even if it is a polyolefin resin having a high metrofluorate (MFR). .
- Another object of the present invention is to solve the above-mentioned problems of the prior art, provide a polyolefin resin composition having excellent transparency, and a crystal nucleating agent composition for polyolefin resin having excellent fluidity as a powder.
- An object of the present invention is to provide a product and a polyolefin resin composition obtained by blending the same.
- the present inventors have made extensive studies to solve the above problems, and as a result, added dibenzylidene sorbitol compound and alkali metal salt of aromatic organophosphate to polyolefin resin at a specific ratio. As a result, the inventors have found that the above object can be achieved, and have completed the present invention.
- the polyolefin resin composition of the present invention has the following general formula (1) with respect to a polyolefin resin having a melt flow rate (MFR) at 230 ° C. of 20 dg / min or more.
- MFR melt flow rate
- R 1 , R 2 , R 3 , R 4 and R 5 are each independently a hydrogen atom, a halogen atom, or an alkyl having 1 to 4 carbon atoms.
- the polyolefin resin is preferably a polypropylene resin having a melt flow rate (MFR) at 230 ° C. of 20 to 100 dg / min.
- MFR melt flow rate
- R 1 to R 4 are each independently selected from the group of hydrogen atoms and alkyl groups having 1 to 4 carbon atoms, and R 5 is a hydrogen atom.
- M in the general formula (2) is lithium and R 6 to R 12 are tertiary butyl groups are preferably used.
- the crystal nucleating agent composition for polyolefin resins of the present invention is based on 100 parts by mass of 1,3: 2,4-bis (3 ′, 4′-dimethylbenzylidene) sorbitol (C).
- M represents an alkali metal
- M represents Al (OH)
- Compound (E) 0.5 to 10 parts by mass of a monovalent metal salt of a fatty acid having 12 to 22 carbon atoms which may be substituted with a hydroxyl group
- the crystal nucleating agent composition for polyolefin resin of the present invention comprises the total mass of the phosphate metal salt compound (D) and the compound (E), and the 1,3: 2,4-bis (3
- a compound in which the metal salt of the phosphate ester metal salt compound (D) is a lithium salt or an aluminum salt is preferably used.
- a compound in which the metal salt of the compound (E) is a lithium salt is preferably used.
- Another polyolefin resin composition of the present invention is characterized in that 0.1 to 10 parts by mass of the crystal nucleating agent composition for polyolefin resin is blended with 100 parts by mass of polyolefin resin. To do.
- the polyolefin resin has a high melt flow rate (MFR) by blending a dibenzylidene sorbitol compound and an aromatic organophosphate ester alkali metal salt compound prepared at a specific ratio. Even if it is polyolefin resin, the polyolefin resin composition excellent in transparency can be provided.
- MFR melt flow rate
- the specific benzylidene sorbitol compound (C), the specific phosphate metal salt (D), and the monovalent metal salt of the specific fatty acid are blended in a specific ratio.
- a crystal nucleating agent composition for polyolefin resin showing good fluidity is obtained, and further obtained by molding a polyolefin resin composition containing the crystal nucleating agent composition for polyolefin resin.
- the molded product has an effect of excellent transparency.
- polyolefin resin composition of the present invention is described in detail below.
- examples of the polyolefin resin used in the polyolefin resin composition of the present invention include low density polyethylene, linear low density polyethylene, high density polyethylene, isotactic polypropylene, syndiotactic polypropylene, hemiisotactic polypropylene, ⁇ -olefin polymer such as cycloolefin polymer, stereoblock polypropylene, poly-3-methyl-1-butene, poly-3-methyl-1-pentene, poly-4-methyl-1-pentene, ethylene / propylene block or Examples include ⁇ -olefin copolymers such as random copolymers.
- polypropylene resin in which the effect of using the crystal nucleating agent according to the present invention is remarkable, is preferable.
- Polypropylene, ethylene / propylene block or random copolymer, ⁇ -olefin / propylene other than ethylene Block or random copolymers and mixtures of these propylene polymers with other ⁇ -olefin polymers are particularly preferably used.
- the above polyolefin-based resin has a melt flow rate (MFR) at 230 ° C. of 20 dg / min or more, and a remarkable effect of the invention can be obtained.
- the melt flow rate (MFR) is 20 to 100 dg / min. Are more preferred. If it is 20 dg / min or less, the effects of the present invention may not be obtained.
- a polyolefin resin composition having a melt flow rate (MFR) of 100 dg / min or more is difficult to extrude, but does not deny the effect of the present invention, which is an effect of improving the transparency of the polyolefin resin composition. .
- Examples of the alkyl group having 1 to 4 carbon atoms represented by R 1 , R 2 , R 3 , R 4 and R 5 in the general formula (1) include, for example, a methyl group, an ethyl group, a propyl group, Examples include isopropyl group, butyl group, secondary butyl group, tertiary butyl group, and isobutyl group.
- Examples of the alkoxy group having 1 to 4 carbon atoms represented by R 1 , R 2 , R 3 , R 4 and R 5 in the general formula (1) include a methoxy group, an ethoxy group, a propoxy group, And a butoxy group.
- Examples of the alkenyl group having 2 to 4 carbon atoms represented by R 1 , R 2 , R 3 , R 4 and R 5 in the general formula (1) include an allyl group and a 3-methylallyl group. Can be mentioned.
- Examples of the hydroxyalkyl group having 1 to 4 carbon atoms represented by R 1 , R 2 , R 3 , R 4 and R 5 in the general formula (1) include, for example, a 1-hydroxypropyl group, 1, Examples include 2,3-trihydroxypropyl group.
- Examples of the halogenated alkyl group having 1 to 4 carbon atoms represented by R 1 , R 2 , R 3 , R 4 and R 5 in the general formula (1) include a 1,2-dibromopropyl group, for example. Etc.
- Examples of the hydroxyhalogenated alkyl group having 1 to 4 carbon atoms represented by R 1 , R 2 , R 3 , R 4 and R 5 in the general formula (1) include 1-hydroxy-2-bromopropyl Groups and the like.
- dibenzylidene sorbitol compound used in the present invention examples include the following compounds. However, the present invention is not limited by the following compounds.
- Examples of the alkyl group having 1 to 9 carbon atoms represented by R 6 to R 9 in the general formula (2) include amyl, tertiary amyl, hexyl, heptyl, octyl, Examples include isooctyl, tertiary octyl, 2-ethylhexyl, nonyl, isononyl and the like, and among these, those having a tertiary butyl group are particularly preferable.
- alkali metal salt compound of the aromatic organic phosphate used in the present invention examples include the following compounds. However, the present invention is not limited by the following compounds.
- the alkali metal salt compound of the aromatic phosphate ester when used in combination with a fatty acid metal salt soap, particularly a fatty acid lithium salt soap, the effect of the present invention is remarkably obtained. This is preferable.
- the sum of the dibenzylidene sorbitol compound and the alkali metal salt of the organophosphate is 0.01 to 1.0 mass relative to 100 mass parts of the polyolefin resin. Parts, preferably 0.03 to 0.7 parts by weight, more preferably 0.03 to 0.6 parts by weight. When the amount is less than 0.01 part by mass, the effect of addition is insufficient, and when the amount is more than 1.0 part by mass, the surface of a molded product obtained by molding the polyolefin resin composition may be bleed.
- the crystal nucleating agent composition for polyolefin resin of the present invention is described in detail below.
- the crystal nucleating agent composition for polyolefin resin according to the present invention has the following general formula (3) with respect to 100 parts by mass of 1,3: 2,4-bis (3 ′, 4′-dimethylbenzylidene) sorbitol (C).
- R 1 to R 4 each independently represents a hydrogen atom or an alkyl group having 1 to 9 carbon atoms
- R 5 represents a hydrogen atom or a methyl group
- n 1 or 2
- M represents 1, M represents an alkali metal
- n is 2, 3 to 20 parts by mass of a phosphoric acid ester metal salt compound (D) represented by Al (OH) is substituted with a hydroxyl group.
- D phosphoric acid ester metal salt compound represented by Al (OH)
- E 0.5 to 10 parts by mass which is a monovalent metal salt of a fatty acid having 12 to 22 carbon atoms.
- Examples of the alkyl group having 1 to 9 carbon atoms represented by R 1 , R 2 , R 3 and R 4 in the general formula (3) include a methyl group, an ethyl group, a propyl group, an isopropyl group, Butyl group, sec-butyl group, tert-butyl group, isobutyl group, amyl group, isoamyl group, tert-amyl group, hexyl group, cyclohexyl group, heptyl group, isoheptyl group, and tertiary heptyl group. Among them, a tert-butyl group is particularly preferable.
- Examples of the alkali metal represented by M in the general formula (3) include lithium, sodium, potassium and the like, and a compound in which M is lithium is particularly preferably used.
- Examples of the phosphate ester metal salt compound (D) used in the present invention include the following compounds. However, the present invention is not limited by the following compounds.
- the fatty acid having 12 to 22 carbon atoms which may be substituted with a hydroxyl group is a saturated fatty acid or
- the unsaturated fatty acid can be used without distinction, may have a branched chain, may have a cyclic structure, or may have a hydroxy group.
- fatty acids examples include dodecanoic acid (lauric acid), tetradecanoic acid (myristic acid), pentadecanoic acid, hexadecanoic acid (palmitic acid), 9-hexadecenoic acid (palmitoyl acid), heptadecanoic acid (margaric acid), octadecanoic acid ( Stearic acid), 12-hydroxystearic acid, cis-9-octadecenoic acid (oleic acid), 11-octadecenoic acid (vaccenic acid), cis, cis-9,12-octadecadienoic acid (linoleic acid), 9,11 , 13-octadecatrienoic acid (eleostearic acid), nonadecanoic acid (tuberculostearic acid), icosanoic acid (arachidic acid), docosanoic acid (behenic acid), and the like.
- Examples of the monovalent metal salt in the compound (E) include lithium, sodium and potassium, and lithium is particularly preferably used.
- 1,3: 2,4-bis (3 ′, 4′-dimethylbenzylidene) sorbitol (C) may be commercially available, or synthesized according to a conventional method. A thing may be used and is not particularly limited.
- the crystal nucleating agent composition for polyolefin resin of the present invention comprises the total mass of the phosphate metal salt compound (D) and the compound (E), and 1,3: 2,4-bis (3 ′, 4
- the crystal nucleating agent composition for polyolefin resin of the present invention comprises a phosphate ester metal salt compound with respect to 100 parts by mass of 1,3: 2,4-bis (3 ′, 4′-dimethylbenzylidene) sorbitol (C).
- a phosphate ester metal salt compound with respect to 100 parts by mass of 1,3: 2,4-bis (3 ′, 4′-dimethylbenzylidene) sorbitol (C).
- (D) 3 to 20 parts by mass and 0.5 to 10 parts by mass of compound (E) are blended, the production method is not limited, and Japanese Patent Application Laid-Open No. 2005-120237 is disclosed. It can be produced by a conventionally known method described in JP-A-2005-162867.
- 1,3: 2,4-bis (3 ′, 4′-dimethylbenzylidene) sorbitol (C), phosphate metal salt compound (D) and compound (E) are blended and mixed in a dry blend.
- a part of (C) to (E) may be pre-blended and then dry blended with the remaining components.
- mixing may be performed using a mill roll, a Banbury mixer, a super mixer, or the like, and kneading may be performed using a single screw or twin screw extruder.
- the polyolefin resin composition can be directly produced by blending (C) to (E) and other components.
- polyolefin resin used in the polyolefin resin composition of the present invention examples include low density polyethylene, linear low density polyethylene, high density polyethylene, isotactic polypropylene, syndiotactic polypropylene, hemiisotactic polypropylene, ⁇ -olefin polymer such as cycloolefin polymer, stereoblock polypropylene, poly-3-methyl-1-butene, poly-3-methyl-1-pentene, poly-4-methyl-1-pentene, ethylene / propylene block or Examples include ⁇ -olefin copolymers such as random copolymers.
- Such a polyolefin resin may be a mixture of a propylene polymer such as polypropylene, ethylene / propylene block or random copolymer, ⁇ -olefin / propylene block or random copolymer other than ethylene, and another ⁇ -olefin polymer. Can be used.
- the polyolefin resin composition of the present invention is 0.01 to 10 parts by mass, preferably 0.03 to 0.000 parts by mass of the crystal nucleating agent composition for polyolefin resins of the present invention with respect to 100 parts by mass of the polyolefin resin. 7 parts by mass, more preferably 0.03 to 0.4 parts by mass is blended. If the blending amount of the crystal nucleating agent composition for polyolefin resins of the present invention is less than 0.01 parts by mass, the effect of addition is insufficient, while the blending amount of the crystal nucleating agent composition for polyolefin resins of the present invention is insufficient. When the amount is more than 10 parts by mass, there is a risk of bleeding on the surface of a molded product obtained by molding the polyolefin resin composition.
- polyolefin resin composition of the present invention other conventionally known additives that are generally used may be added to the polyester resin composition as necessary, as long as the effects of the present invention are not impaired. Good.
- additives include neopentyl glycol derivatives, polyalkylene glycols and derivatives thereof, plasticizers such as polyhydric alcohols and epoxy compounds of the derivatives; antioxidants composed of phenolic, phosphorus, sulfur, etc .; hindered amines A light stabilizer comprising a light stabilizer, an ultraviolet absorber, etc .; a hydrocarbon compound, a fatty acid compound, an aliphatic alcohol compound, an aliphatic ester compound, an aliphatic amide compound, an aliphatic carboxylic acid metal salt compound, or Other metal soap and other lubricants; heavy metal deactivators; antistatic agents comprising cationic surfactants, anionic surfactants, nonionic surfactants, amphoteric surfactants; halogen compounds; phosphorus Acid ester compounds; phosphoric acid amide compounds; melamine compounds; fluororesins or metal oxides; (poly) Flame retardants such as melamine phosphate and (poly) phosphate piperazine
- plasticizers such as neopentyl glycol derivatives, polyalkylene glycols and derivatives thereof, polyhydric alcohols and epoxy compounds of the derivatives; phenolic antioxidants, phosphorus antioxidants, sulfur antioxidants Antioxidant consisting of hindered amine light stabilizer, UV absorber, etc .; hydrocarbon compound, fatty acid compound, aliphatic alcohol compound, aliphatic ester compound, aliphatic amide compound, A lubricant such as an aliphatic carboxylic acid metal salt compound or other metal soap; a heavy metal deactivator; a cationic surfactant, an anionic surfactant, a nonionic surfactant, an amphoteric surfactant, etc.
- plasticizers such as neopentyl glycol derivatives, polyalkylene glycols and derivatives thereof, polyhydric alcohols and epoxy compounds of the derivatives
- Antistatic agent Halogen compound; Phosphate ester compound; Phosphate amide compound; Melamine compound; Fluorine resin Or metal oxides; flame retardants such as (poly) phosphate melamine, piperazine (poly) phosphate; fillers such as glass fiber and calcium carbonate; hydrotalcite, fumed silica, fine-particle silica, silica, diatomaceous earth, Silica-based inorganic additives such as clay, kaolin, diatomaceous earth, silica gel, calcium silicate, sericite, kaolinite, flint, feldspar powder, aragonite, attapulgite, talc, mica, minnesotite, pyrophyllite, silica; polyolefin of the present invention
- phenol-based antioxidant examples include 2,6-ditert-butyl-p-cresol, 2,6-diphenyl-4-octadecyloxyphenol, stearyl (3,5-ditert-butyl-4- Hydroxyphenyl) propionate, distearyl (3,5-ditert-butyl-4-hydroxybenzyl) phosphonate, tridecyl-3,5-ditert-butyl-4-hydroxybenzylthioacetate, thiodiethylenebis [(3,5 -Di-tert-butyl-4-hydroxyphenyl) propionate], 4,4'-thiobis (6-tert-butyl-m-cresol), 2-octylthio-4,6-di (3,5-di-tert-butyl) -4-hydroxyphenoxy) -s-triazine, 2,2'-methylenebis (4-methyl-6-tert-butylphenol), bis [3,3 Bis (4-hydroxy-3-tert
- the amount of the phenolic antioxidant used is 0.001 to 10 parts by mass, preferably 0.01 to 5 parts by mass with respect to 100 parts by mass of the polyolefin resin.
- Examples of the phosphorus antioxidant include triphenyl phosphite, tris (2,4-ditert-butylphenyl) phosphite, tris (2,5-ditert-butylphenyl) phosphite, and tris (nonylphenyl).
- Phosphite tris (dinonylphenyl) phosphite, tris (mono, dimixed nonylphenyl) phosphite, diphenyl acid phosphite, 2,2'-methylenebis (4,6-ditert-butylphenyl) octyl phosphite , Diphenyldecyl phosphite, diphenyloctyl phosphite, di (nonylphenyl) pentaerythritol diphosphite, phenyl diisodecyl phosphite, tributyl phosphite, tris (2-ethylhexyl) phosphite, tridecyl phosphite, trilauryl phosphat , Dibutyl acid phosphite, dilauryl acid phosphite, trilauryl trithiopho
- the amount of the phosphorus antioxidant used is 0.001 to 10 parts by mass, preferably 0.01 to 5 parts by mass with respect to 100 parts by mass of the polyolefin resin.
- sulfur-based antioxidant examples include dialkylthiodipropionates such as dilauryl, dimyristyl, myristylstearyl, and distearyl esters of thiodipropionic acid and polyols such as pentaerythritol tetra ( ⁇ -dodecyl mercaptopropionate).
- dialkylthiodipropionates such as dilauryl, dimyristyl, myristylstearyl, and distearyl esters of thiodipropionic acid and polyols such as pentaerythritol tetra ( ⁇ -dodecyl mercaptopropionate).
- the amount of the sulfur-based antioxidant used is 0.001 to 10 parts by mass, preferably 0.01 to 5 parts by mass with respect to 100 parts by mass of the polyolefin resin.
- hindered amine light stabilizer examples include 2,2,6,6-tetramethyl-4-piperidyl stearate, 1,2,2,6,6-pentamethyl-4-piperidyl stearate, 2,2, 6,6-tetramethyl-4-piperidylbenzoate, bis (2,2,6,6-tetramethyl-4-piperidyl) sebacate, bis (1,2,2,6,6-pentamethyl-4-piperidyl) sebacate Bis (1-octoxy-2,2,6,6-tetramethyl-4-piperidyl) sebacate, 1,2,2,6,6-pentamethyl-4-piperidyl methacrylate, 2,2,6,6-tetra Methyl-piperidyl methacrylate, tetrakis (2,2,6,6-tetramethyl-4-piperidyl) -1,2,3,4-butanetetracarboxylate, Trakis (1,2,2,6,6-pentamethyl-4-piperidyl) -1,2,3,4-but
- the amount of the hindered amine compound used is 0.001 to 10 parts by mass, preferably 0.01 to 5 parts by mass with respect to 100 parts by mass of the polyolefin resin.
- ultraviolet absorber examples include 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-octoxybenzophenone, and 5,5′-methylenebis (2-hydroxy-4-methoxybenzophenone).
- 2-hydroxybenzophenones such as 2-; 2- (2-hydroxy-5-methylphenyl) benzotriazole, 2- (2-hydroxy-5-tert-octylphenyl) benzotriazole, 2- (2-hydroxy-3, 5-di-tert-butylphenyl) -5-chlorobenzotriazole, 2- (2-hydroxy-3-tert-butyl-5-methylphenyl) -5-chlorobenzotriazole, 2- (2-hydroxy-3,5 -Dicumylphenyl) benzotriazole, 2,2'-methylenebis (4- 3-octyl-6-benzotriazolylphenol), 2- (2-hydroxy-3-tert-butyl-5-carboxyphenyl) benzotriazole polyethylene glycol ester, 2- [2-hydroxy-3- (2-acryloyl) Oxyethyl) -5-methylphenyl] benzotriazole, 2- [2-hydroxy-3- (2-methacryloyloxyethyl) -5-
- the amount of the ultraviolet absorber used is 0.001 to 10 parts by mass, preferably 0.01 to 5 parts by mass with respect to 100 parts by mass of the polyolefin resin.
- Examples of the aliphatic amide compound used as the lubricant include monofatty acid amides such as lauric acid amide, stearic acid amide, oleic acid amide, erucic acid amide, ricinoleic acid amide, and 12-hydroxystearic acid amide; N, N '-Ethylenebislauric acid amide, N, N'-methylenebisstearic acid amide, N, N'-ethylenebisstearic acid amide, N, N'-ethylenebisoleic acid amide, N, N'-ethylenebisbehenic acid Amide, N, N′-ethylenebis-12-hydroxystearic acid amide, N, N′-butylene bisstearic acid amide, N, N′-hexamethylene bisstearic acid amide, N, N′-hexamethylene bisoleic acid N, N′-, such as amide, N, N′-xylylene bis-stearic acid amide Fatty acid amides; alkylo
- the amount of the lubricant used is preferably 0.01 to 30 parts by mass, more preferably 0.1 to 20 parts by mass with respect to 100 parts by mass of the polyolefin resin.
- a dibenzylidene sorbitol compound represented by the general formula (1) and an alkali metal salt of an organic phosphate ester represented by the general formula (2) are added to the polyolefin resin.
- the blending method is not particularly limited, and can be performed by a conventionally known method.
- the polyolefin resin powder or pellets and the additive may be mixed by dry blending, or a part of the additive may be preblended and then dry blended with the remaining components. After dry blending, for example, mixing may be performed using a mill roll, a Banbury mixer, a super mixer, or the like, and kneading may be performed using a single screw or twin screw extruder.
- This mixing and kneading is usually performed at a temperature of about 120 to 220 ° C.
- a method of adding a pack composite additive to the polyolefin resin, a method of creating a masterbatch containing the additive at a high concentration, and adding the masterbatch to the polyolefin resin can be used.
- the method of blending the polyolefin resin with the crystal nucleating agent composition for polyolefin resin of the present invention is not particularly limited, and can be performed by a conventionally known method.
- the polyolefin resin powder or pellets and the additive may be mixed by dry blending, or a part of the additive may be preblended and then dry blended with the remaining components.
- mixing may be performed using a mill roll, a Banbury mixer, a super mixer, or the like, and kneading may be performed using a single screw or twin screw extruder.
- This mixing and kneading is usually performed at a temperature of about 120 to 220 ° C.
- a method of adding a pack composite additive to the polyolefin resin, a method of preparing a masterbatch containing the additive at a high concentration, and adding the masterbatch to the polyolefin resin can be used.
- the polyolefin resin composition of the present invention may be a fiber reinforced plastic by blending glass fibers, carbon fibers and the like.
- Polyolefin resins listed in Tables 1 to 3 below 100 parts by mass of an ethylene / propylene random copolymer, phenolic antioxidant; tetrakis [methylene-3- (3 ′, 5′-ditert-butyl- 4′-hydroxyphenyl) propionate] methane 0.1 part by mass, phosphorus antioxidant: tris (2,4-ditert-butylphenyl) phosphite 0.1 part by mass, calcium stearate 0.05 part by mass, and 0.2 parts by mass of a mixture of crystal nucleating agents described in Tables 1 to 3 below (however, Comparative Example 4 does not contain a crystal nucleating agent) was added at 1000 rpm with a Henschel mixer (FM200; manufactured by Mitsui Mining Co., Ltd.). Mix for 1 minute and produce pellets by extrusion with a single screw extruder (OEX3024; manufactured by DIM Co., Ltd.) at 240 ° C and 30 rpm screw
- Comparative Example 4 is a polyolefin resin composition containing no crystal nucleating agent
- the polyolefin resin composition in which the ratio of the dibenzylidene sorbitol compound and the alkali metal salt of the organophosphate is not within the range of 99/1 to 80/20 is satisfactory transparency.
- the ratio of the dibenzylidene sorbitol compound and the alkali metal salt of the organophosphate is within the range of 99/1 to 80/20.
- the polyolefin-based resin composition was excellent in transparency.
- the polyolefin resin composition of the present invention has a melt flow rate (MFR) at 230 ° C. of the polyolefin resin of 20 dg / min or more, and an alkali metal salt of a dibenzylidene sorbitol compound and an aromatic organophosphate. It was confirmed that an excellent effect of improving transparency was obtained by adopting the constitution of the present invention within the range of the compound ratio of 99/1 to 80/20.
- MFR melt flow rate
- crystal nucleating agent composition for polyolefin resins described in Tables 5 to 8 below (hereinafter referred to as “crystal nucleating agent composition”) Mix at 1000 rpm for 1 minute with a mixer (FM200; manufactured by Mitsui Mining Co., Ltd.), and at 240 ° C and 160 rpm with a twin screw extru
- MFR MFR at 230 ° C. was evaluated by a measurement method based on ISO 1133 2)
- S-1 1,3: 2,4-bis (3 ′, 4′-dimethylbenzylidene) sorbitol 3)
- LIM stearic acid lithium
- Comparative Example 12 is a composition containing no crystal nucleating agent composition 6)
- the transparency of the polyolefin resin composition containing the crystal nucleating agent composition for polyolefin resin that does not take the constitution of the present invention was not satisfactory.
- the transparency of the polyolefin resin composition of the present invention is higher than that of a polyolefin resin composition containing a sorbitol compound alone as a crystal nucleating agent composition. It was confirmed that excellent transparency was obtained.
- the present invention provides 1,3: 2,4-bis (3 ′, 4′-dimethylbenzylidene) sorbitol as the specific sorbitol compound (C), phosphoric acid represented by the general formula (3) Crystal nucleating agent for polyolefin resin in which ester metal salt compound (D) and compound (E) which is a monovalent metal salt of a fatty acid having 12 to 22 carbon atoms which may be substituted with a hydroxyl group are blended in a specific ratio A polyolefin resin composition having excellent transparency can be provided by the composition.
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Abstract
Description
例えば、特許文献1、特許文献2などには、ジベンジリデンソルビトールの化合物が提案されており、特許文献3、特許文献4、特許文献5などにはベンゼン環に置換基を有するジベンジリデンソルビトール化合物が提案されている。また、特許文献6には、置換されたアリール基を有するアセタール系化合物が提案されている。
(式中、nは、0乃至2の整数であり、R1、R2、R3、R4及びR5は、各々独立して、水素原子、ハロゲン原子、炭素原子数1~4のアルキル基、炭素原子数2~4のアルコキシ基、炭素原子数1~4のアルケニル基、炭素原子数1~4のヒドロキシルアルキル基、炭素原子数1~4のハロゲン化アルキル基及び炭素原子数1~4のヒドロキシハロゲン化アルキル基からなる群から選択される)で表されるジベンジリデンソルビトール化合物(A)及び、下記一般式(2)、
(式中、R6~R9は各々独立して、水素原子又は炭素原子数1~9のアルキル基を表し、R10は水素原子又はメチル基を表し、Mはアルカリ金属を表す)で表される有機リン酸エステルのアルカリ金属塩化合物(B)を配合してなるものであって、上記ポリオレフィン系樹脂100質量部に対し、(A)成分と(B)成分の総和が0.01~1.0質量部で、かつ(A)成分と(B)成分の比率(質量比)が、(A)/(B)=99/1~80/20の範囲内であることを特徴とするものである。
下記一般式(3)、
(式(3)中、R1~R4は各々独立して、水素原子又は炭素原子数1~9のアルキル基を表し、R5は水素原子またはメチル基を表し、nは1または2を表し、nが1の場合、Mはアルカリ金属を表し、nが2の場合、MはAl(OH)を表す)で表されるリン酸エステル金属塩化合物(D)3~20質量部と、水酸基で置換されてもよい炭素原子数12~22の脂肪酸の1価の金属塩である化合物(E)0.5~10質量部と、を配合してなり、
前記リン酸エステル金属塩化合物(D)と前記化合物(E)の質量による比率が、(D)/(E)=90/10~50/50の範囲内であることを特徴とするものである。
本発明のポリオレフィン系樹脂組成物に用いられるポリオレフィン系樹脂としては、例えば、低密度ポリエチレン、直鎖状低密度ポリエチレン、高密度ポリエチレン、アイソタクチックポリプロピレン、シンジオタクチックポリプロピレン、ヘミアイソタクチックポリプロピレン、シクロオレフィンポリマー、ステレオブロックポリプロピレン、ポリ-3-メチル-1-ブテン、ポリ-3-メチル-1-ペンテン、ポリ-4-メチル-1-ペンテン等のα-オレフィン重合体、エチレン/プロピレンブロック又はランダム共重合体等のα-オレフィン共重合体等が挙げられる。
本発明のポリオレフィン系樹脂用結晶核剤組成物は、1,3:2,4-ビス(3’,4’-ジメチルベンジリデン)ソルビトール(C)100質量部に対して、下記一般式(3)、
(式中、R1~R4は各々独立して、水素原子または炭素原子数1~9のアルキル基を表し、R5は水素原子またはメチル基を表し、nは1または2を表し、nが1の場合、Mはアルカリ金属を表し、nが2の場合、MはAl(OH)を表す)で表されるリン酸エステル金属塩化合物(D)3~20質量部と、水酸基で置換されてもよい炭素原子数12~22の脂肪酸の1価の金属塩である化合物(E)0.5~10質量部と、を配合してなるものである。
本発明のポリオレフィン系樹脂組成物に用いられるポリオレフィン系樹脂としては、例えば、低密度ポリエチレン、直鎖状低密度ポリエチレン、高密度ポリエチレン、アイソタクチックポリプロピレン、シンジオタクチックポリプロピレン、ヘミアイソタクチックポリプロピレン、シクロオレフィンポリマー、ステレオブロックポリプロピレン、ポリ-3-メチル-1-ブテン、ポリ-3-メチル-1-ペンテン、ポリ-4-メチル-1-ペンテン等のα-オレフィン重合体、エチレン/プロピレンブロックまたはランダム共重合体等のα-オレフィン共重合体等が挙げられる。
前記の得られたペレットを、射出成型機(EC100-2A;東芝機械(株)製)にて、200℃の射出温度及び70~80MPaの射出圧力で金型に40秒間充填し、40℃の金型内で20秒間冷却後、金型からシートを取り出す条件で射出成形を行って、一辺が60mm四方の正方形で厚みが1mmのシートを得た。該シートは射出成形後ただちに槽内温度が23℃である恒温槽で48時間以上静置した後、ヘイズ・ガード2〔(株)東洋精機製作所製〕にて、試験片の霞度(Haze)を求めた。
尚、この数値が低いほど試験片の透明性は良好であることを示す。これらの結果について下記の表1~3に示す。
上記の得られたペレットを、射出成型機(EC100-2A;東芝機械株式会社製)にて、200℃の射出温度および70~80MPaの射出圧力で金型に40秒間充填し、40℃の金型内で20秒間冷却後、金型からシートを取り出す条件で射出成形を行って、一辺が60mm四方の正方形で厚みが1mmのシートを得た。該シートは射出成形後ただちに槽内温度が23℃である恒温槽で48時間以上静置した後、ヘイズ・ガードII(株式会社東洋精機製作所製)にて、試験片の霞度(Haze)を求めた。尚、この数値が低いほど試験片の透明性が良好であることを示す。これらの結果について下記の表5~8にそれぞれ示す。
表5~8に記載の結晶核剤組成物を、ロートを使用して円盤上に注入堆積させ、自発的に崩れることなく安定を保つ角度を安息角として測定した。尚、この数値が低いほど結晶核剤組成物の流動性が良好であることを示す。これらの結果について下記の表5~8にそれぞれ示す。
Claims (9)
- 230℃におけるメルトフローレート(MFR)が20dg/min以上のポリオレフィン系樹脂に対し、下記一般式(1)、
(式中、nは、0乃至2の整数であり、R1、R2、R3、R4及びR5は、各々独立して、水素原子、ハロゲン原子、炭素原子数1~4のアルキル基、炭素原子数2~4のアルコキシ基、炭素原子数1~4のアルケニル基、炭素原子数1~4のヒドロキシルアルキル基、炭素原子数1~4のハロゲン化アルキル基及び炭素原子数1~4のヒドロキシハロゲン化アルキル基からなる群から選択される)で表されるジベンジリデンソルビトール化合物(A)及び、下記一般式(2)、
(式中、R6~R9は各々独立して、水素原子又は炭素原子数1~9のアルキル基を表し、R10は水素原子又はメチル基を表し、Mはアルカリ金属を表す)で表される有機リン酸エステルのアルカリ金属塩化合物(B)を配合してなるものであって、上記ポリオレフィン系樹脂100質量部に対し、(A)成分と(B)成分の総和が0.01~1.0質量部で、かつ(A)成分と(B)成分の比率(質量比)が、(A)/(B)=99/1~80/20の範囲内であることに特徴を有するポリオレフィン系樹脂組成物。 - 上記ポリオレフィン樹脂が、230℃におけるメルトフローレートが20~100dg/minのポリプロピレン系樹脂である請求項1記載のポリオレフィン系樹脂組成物。
- 上記一般式(1)におけるR1~R4は各々独立して、水素原子および炭素原子数1~4のアルキル基の群から選択され、R5は水素原子である請求項1又は2記載のポリオレフィン系樹脂組成物。
- 上記一般式(2)におけるMがリチウムであり、R6~R9が第三ブチル基である請求項1~3の何れかに記載のポリオレフィン系樹脂組成物。
- 1,3:2,4-ビス(3’,4’-ジメチルベンジリデン)ソルビトール(A)100質量部に対して、
下記一般式(3)、
(式(3)中、R1~R4は各々独立して、水素原子又は炭素原子数1~9のアルキル基を表し、R5は水素原子またはメチル基を表し、nは1または2を表し、nが1の場合、Mはアルカリ金属を表し、nが2の場合、MはAl(OH)を表す)で表されるリン酸エステル金属塩化合物(D)3~20質量部と、
水酸基で置換されてもよい炭素原子数12~22の脂肪酸の1価の金属塩である化合物(E)0.5~10質量部と、を配合してなり、
前記リン酸エステル金属塩化合物(D)と前記化合物(E)の質量による比率が、(D)/(E)=90/10~50/50の範囲内であることを特徴とするポリオレフィン系樹脂用結晶核剤組成物。 - 前記リン酸エステル金属塩化合物(D)と前記化合物(E)との合計質量と、前記1,3:2,4-ビス(3’,4’-ジメチルベンジリデン)ソルビトール(C)の質量による比率が、(D+E)/(C)=5/95~20/80の範囲内である請求項5記載のポリオレフィン系樹脂用結晶核剤組成物。
- 前記リン酸エステル金属塩化合物(D)の金属塩が、リチウム塩またはアルミニウム塩である請求項5または6記載のポリオレフィン系樹脂用結晶核剤組成物。
- 前記化合物(E)の金属塩がリチウム塩である請求項5~7のうちいずれか一項に記載のポリオレフィン系樹脂用結晶核剤組成物。
- ポリオレフィン系樹脂100質量部に対して、請求項5~8のうちいずれか一項に記載のポリオレフィン系樹脂用結晶核剤組成物0.01~10質量部を配合してなることを特徴とするポリオレフィン系樹脂組成物。
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JP2005120237A (ja) | 2003-10-16 | 2005-05-12 | Asahi Denka Kogyo Kk | 結晶核剤組成物及びこれを含有してなる結晶性高分子組成物 |
JP2005162867A (ja) | 2003-12-02 | 2005-06-23 | Asahi Denka Kogyo Kk | 結晶核剤組成物の製造方法、結晶性高分子組成物 |
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US7262236B2 (en) * | 2004-04-26 | 2007-08-28 | Milliken & Company | Acetal-based compositions |
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Cited By (7)
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CN102918091A (zh) * | 2010-05-26 | 2013-02-06 | 株式会社Adeka | 树脂添加剂母料 |
TWI506061B (zh) * | 2010-05-26 | 2015-11-01 | Adeka Corp | Resin additive masterbatch |
US9249267B2 (en) | 2010-05-26 | 2016-02-02 | Adeka Corporation | Resin-additive masterbatch |
US11634427B2 (en) | 2016-07-29 | 2023-04-25 | New Japan Chemical Co., Ltd. | Crystal nucleating agent for polyolefin resin, method for producing crystal nucleating agent for polyolefin resin, and method for improving fluidity of crystal nucleating agent for polyolefin resin |
US10894874B2 (en) | 2016-08-25 | 2021-01-19 | New Japan Chemical Co., Ltd. | Crystal nucleator for polyolefin resins, method for producing crystal nucleator for polyolefin resins, and method for improving fluidity of crystal nucleator for polyolefin resins |
WO2018052010A1 (ja) * | 2016-09-16 | 2018-03-22 | 新日本理化株式会社 | ポリオレフィン系樹脂用結晶核剤、ポリオレフィン系樹脂用結晶核剤の製造方法、及び、ポリオレフィン系樹脂用結晶核剤の流動性の改良方法 |
US11746211B2 (en) | 2016-09-16 | 2023-09-05 | New Japan Chemical Co., Ltd. | Crystal nucleator for polyolefin resins, method for producing crystal nucleator for polyolefin resins, and method for improving fluidity of crystal nucleator for polyolefin resins |
Also Published As
Publication number | Publication date |
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KR101566395B1 (ko) | 2015-11-05 |
CN102027060A (zh) | 2011-04-20 |
CN102027060B (zh) | 2014-04-02 |
US8546473B2 (en) | 2013-10-01 |
KR101566398B1 (ko) | 2015-11-05 |
EP2837654A1 (en) | 2015-02-18 |
EP2837654B1 (en) | 2018-09-26 |
EP2287246A4 (en) | 2014-06-04 |
TWI441860B (zh) | 2014-06-21 |
KR20110009244A (ko) | 2011-01-27 |
US20110105657A1 (en) | 2011-05-05 |
EP2287246B1 (en) | 2017-03-08 |
TW201008997A (en) | 2010-03-01 |
KR20150104642A (ko) | 2015-09-15 |
EP2287246A1 (en) | 2011-02-23 |
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