WO2011013386A1 - 帯電防止性樹脂組成物 - Google Patents
帯電防止性樹脂組成物 Download PDFInfo
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- WO2011013386A1 WO2011013386A1 PCT/JP2010/004855 JP2010004855W WO2011013386A1 WO 2011013386 A1 WO2011013386 A1 WO 2011013386A1 JP 2010004855 W JP2010004855 W JP 2010004855W WO 2011013386 A1 WO2011013386 A1 WO 2011013386A1
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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
- C08L101/00—Compositions of unspecified macromolecular compounds
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- 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
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
- C08F255/06—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms on to ethene-propene-diene terpolymers
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- 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
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/04—Polymers provided for in subclasses C08C or C08F
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
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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
- C08K5/0075—Antistatics
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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
- C08L101/00—Compositions of unspecified macromolecular compounds
- C08L101/12—Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity
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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
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
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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
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
- C08L71/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
- C08L71/12—Polyphenylene oxides
- C08L71/126—Polyphenylene oxides modified by chemical after-treatment
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/16—Anti-static materials
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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
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
Definitions
- the present invention relates to an antistatic resin composition. More specifically, the present invention relates to an antistatic resin composition that imparts excellent permanent antistatic properties to a molded article without impairing the excellent mechanical properties and good appearance of the thermoplastic resin molded article.
- thermoplastic resins having high insulation properties include (1) a method of kneading a low molecular weight surfactant and (2) a method of kneading a metal filler or conductive carbon black.
- a method of kneading a low molecular weight surfactant and (2) a method of kneading a metal filler or conductive carbon black.
- the molded product formed by molding the resin composition obtained by the method (1) exhibits an effect by bleed-out of the low molecular weight surfactant, the antistatic effect is lost by wiping the surface or the like.
- surface roughness occurs with the passage of time, and the molded product by the method (2) is excellent in the durability of the antistatic effect, but a large amount of addition of a metal filler or the like is required. There was a problem that the impact property was lowered.
- a method of kneading a polymer type antistatic agent such as polyether ester amide in a resin has been proposed. Furthermore, a method of kneading a polyether ester amide having a specific dicarboxylic acid as a structural unit into the resin (for example, see Patent Document 1) or a method in which an ionic polymer is incorporated into the polyether ester amide in a relatively small amount in the resin. A method of kneading (see, for example, Patent Document 2) has been proposed.
- the object of the present invention is to provide a molded article having sufficient permanent antistatic properties without impairing the excellent mechanical properties and good appearance of the thermoplastic resin molded article, and even when the content of the antistatic agent is smaller than that of the conventional one.
- An object is to provide an antistatic resin composition.
- the present invention comprises an antistatic agent (A) and a thermoplastic resin (B), the melt viscosity ratio at 220 ° C. of (B) and (A) is 0.5 to 5, and the solubility parameter is An antistatic resin composition having an absolute difference of 1.0 to 3.0.
- the antistatic resin composition of the present invention has the following effects. (1) A molded article having excellent permanent antistatic properties can be obtained even when the content of the antistatic agent in the composition is smaller than that in the prior art. (2) A molded product formed by molding the composition is excellent in appearance and mechanical properties.
- the antistatic agent (A) in the present invention has a melt viscosity ratio at 220 ° C. of the thermoplastic resin (B) and (A) described later of 0.5 to 5, preferably 0.7 to 3.5, more preferably. 0.8 to 2.5, particularly preferably 0.9 to 1.5, and the absolute value of the difference between the solubility parameters of (B) and (A) (hereinafter abbreviated as SP) is 1.0 to 3.0,
- the antistatic agent is preferably 1.1 to 2.5, more preferably 1.2 to 2.0.
- melt viscosity ratio ⁇ (B) / ⁇ (A)
- ⁇ (A) and ⁇ (B) indicate the melt viscosities (unit: Pa ⁇ s / shear rate 600 sec ⁇ 1 ) at 220 ° C., respectively.
- SP (unit: (cal / cm 3 ) 1/2
- V unit: cm 3 / mol
- each SP of (A) and (B) is represented by SP A and SP B
- the absolute value of the difference between SPs of (A) and (B) is represented by 1 / 2SP A -SP B 1/2 May be written.
- SP ( ⁇ E / V) 1/2
- the method of Fedors is known as a specific method of obtaining SP, and this method is described together with the SP obtained by the method as follows: “A Method for Estimating both the Solidity Parameters and POLYSMER EGENERG , FEBRUARY, 1974, vol.14, Issue 2, p.147-154, and these can be used in the present invention.
- hydrophilic polymer (a) examples include at least one selected from the group consisting of polyether (a1), cationic polymer (a2), and anionic polymer (a3).
- Examples of the polyether (a1) include polyether diol (a11), polyether diamine (a12), and modified products (a13) thereof.
- Examples of the cationic polymer (a2) include cationic polymers having 2 to 80, preferably 3 to 60, cationic groups (c2) separated by a nonionic molecular chain (c1) in the molecule.
- As the anionic polymer (a3) a dicarboxylic acid (e1) having a sulfo group and a diol (a0) or a polyether (a1) are essential structural units, and 2 to 80, preferably 3 to An anionic polymer having 60 sulfo groups may be mentioned.
- the polyether (a1) will be described.
- the polyether diol (a11) has a structure obtained by addition reaction of an alkylene oxide (hereinafter abbreviated as AO) to the diol (a0).
- AO alkylene oxide
- the general formula: H— (OA 1 ) m 2 -O 1 -O— (A 1 O) m ′ —H is exemplified.
- E 1 is a residue obtained by removing a hydroxyl group from the diol (a0)
- a 1 is an alkylene group having 2 to 4 carbon atoms (hereinafter abbreviated as C)
- m and m ′ are per hydroxyl group of the diol (a0). Represents the AO addition number.
- n (OA 1 ) and m ′ (A 1 O) may be the same or different, and when these are composed of two or more oxyalkylene groups, the bond form is a block or Either random or a combination thereof may be used.
- m and m ′ are generally integers of 1 to 300, preferably 2 to 250, more preferably 10 to 100.
- M and m ′ may be the same or different.
- diol (a0) examples include dihydric alcohols (for example, C2-12 aliphatic, alicyclic and aromatic ring-containing dihydric alcohols), C6-18 dihydric phenols, and tertiary amino group-containing diols.
- dihydric alcohols for example, C2-12 aliphatic, alicyclic and aromatic ring-containing dihydric alcohols
- C6-18 dihydric phenols examples of the aliphatic dihydric alcohol
- aliphatic dihydric alcohol examples include alkylene glycol [ethylene glycol, propylene glycol (hereinafter abbreviated as EG and PG)], 1,4-butanediol, 1,6-hexanediol, neopentyl glycol (hereinafter, respectively).
- examples of the alicyclic dihydric alcohol include dichlorohexanedimethanol;
- Examples of the aromatic ring-containing dihydric alcohol include xylylene diol.
- dihydric phenol examples include monocyclic dihydric phenol (hydroquinone, catechol, resorcin, urushiol, etc.), bisphenol (bisphenol A, -F and -S, 4,4'-dihydroxydiphenyl-2,2-butane, Dihydroxybiphenyl and the like) and condensed polycyclic dihydric phenols (dihydroxynaphthalene, binaphthol and the like).
- tertiary amino group-containing diol examples include C1-12 aliphatic or alicyclic primary monoamines (methylamine, ethylamine, 1- and 2-propylamine, hexylamine, decylamine, dodecylamine, cyclopropylamine, And bishydroxyalkylated products of C6-12 aromatic ring-containing primary monoamines (aniline, benzylamine, etc.).
- aliphatic dihydric alcohols and bisphenols are preferred from the viewpoint of antistatic properties, and EG and bisphenol A are more preferred.
- the polyether diol (a11) can be produced by adding AO to the diol (a0).
- A0 includes C2-4 AO [ethylene oxide, propylene oxide, 1,2-, 1,4-, 2,3- and 1,3-butylene oxide (hereinafter abbreviated as EO, PO, BO, respectively), and These two or more combined systems are used, and if necessary, other AO or substituted AO (hereinafter collectively referred to as AO) such as C5-12 ⁇ -olefin, styrene oxide, epihalohydrin (epichlorohydrin). Etc.) can be used together in a small proportion (for example, 30% or less based on the weight of the total AO).
- the coupling form may be random and / or block.
- Preferred as AO is EO alone or a combination of EO and another AO (random and / or block addition).
- the added number of AO is usually an integer of 1 to 300, preferably 2 to 250, more preferably 10 to 100 per hydroxyl group of the diol (a0).
- AO can be added by a known method, for example, at a temperature of 100 to 200 ° C. in the presence of an alkali catalyst.
- the content of C2-4 oxyalkylene units in (a11) is usually from 5 to 99.8%, preferably from 8 to 99.6%, more preferably from 10 to 98%.
- the content of oxyethylene units in the polyoxyalkylene chain is usually 5 to 100%, preferably 10 to 100%, more preferably 50 to 100%, and particularly preferably 60 to 100%.
- the polyether diamine (a12) has the general formula: H 2 NA 2 — (OA 1 ) m — ⁇ —E 1 —O— (A 1 O) m ′ —A 2 —NH 2 (in the formula E 1 , A 1 , m and m ′ are the same as described above, A 2 is a C2-4 alkylene group, and A 1 and A 2 may be the same or different.
- (A12) can be obtained by changing the hydroxyl group of (a11) to an amino group by a known method. For example, the terminal obtained by cyanoalkylating the hydroxyl group of (a11) is reduced to an amino group Can be used. For example, it can be produced by reacting (a11) with acrylonitrile and hydrogenating the resulting cyanoethylated product.
- modified product (a13) examples include the aminocarboxylic acid modified product (terminal amino group), the isocyanate modified product (terminal isocyanate group) and the epoxy modified product (terminal epoxy group) of (a11) or (a12). It is done.
- the modified aminocarboxylic acid can be obtained by reacting (a11) or (a12) with aminocarboxylic acid or lactam.
- the isocyanate-modified product can be obtained by reacting (a11) or (a12) with a polyisocyanate as described below or reacting (a12) with phosgene.
- the epoxy-modified product is obtained by reacting (a11) or (a12) with a diepoxide (epoxy resin such as diglycidyl ether, diglycidyl ester, alicyclic diepoxide: epoxy equivalent 85 to 600), or (a11) and epihalohydrin. It can be obtained by reacting with (e.g. epichlorohydrin).
- a diepoxide epoxy resin such as diglycidyl ether, diglycidyl ester, alicyclic diepoxide: epoxy equivalent 85 to 600
- epihalohydrin e.g. epichlorohydrin
- Number average molecular weight of polyether (a1) [hereinafter abbreviated as Mn.
- Mn Number average molecular weight of polyether (a1) [hereinafter abbreviated as Mn.
- the measurement is performed by a gel permeation chromatography (GPC) method described later] is usually 150 to 20,000, and preferably 300 to 20,000 from the viewpoint of heat resistance and reactivity with the hydrophobic polymer (b) described later. It is 18,000, more preferably 500 to 15,000, particularly preferably 1,200 to 8,000.
- Mn is measured under the same conditions.
- Equipment High temperature
- GPC Solvent: Orthodichlorobenzene reference material: Polystyrene sample concentration: 3 mg / mL Column temperature: 135 ° C
- (A2) is a hydrophilic polymer having 2 to 80, preferably 3 to 60, cationic groups (c2) separated by a nonionic molecular chain (c1) in the molecule.
- cationic group (c2) include a group having a quaternary ammonium salt or a phosphonium salt.
- counter anion of (c2) include a super strong acid anion and other anions.
- the super strong acid anion includes an anion of a super strong acid (tetrafluoroboric acid, hexafluorophosphoric acid, etc.) derived from a combination of a protonic acid (d1) and a Lewis acid (d2), a super strong acid anion such as trifluoromethanesulfonic acid, etc.
- a super strong acid tetrafluoroboric acid, hexafluorophosphoric acid, etc.
- d1 protonic acid
- d2 Lewis acid
- a super strong acid anion such as trifluoromethanesulfonic acid, etc.
- strong acid anions examples include halogen ions (F ⁇ , Cl ⁇ , Br ⁇ , I ⁇ etc.), OH ⁇ , PO 4 ⁇ , CH 3 OSO 4 ⁇ , C 2 H 5 OSO 4 ⁇ , ClO 4 ⁇ and the like. Can be mentioned.
- protonic acid (d1) that induces a super strong acid include hydrogen fluoride, hydrogen chloride, hydrogen bromide, hydrogen iodide, and the like.
- Lewis acid (d2) include boron trifluoride, phosphorus pentafluoride, antimony pentafluoride, arsenic pentafluoride, and tantalum pentafluoride.
- the nonionic molecular chain (c1) includes a divalent hydrocarbon group or an ether bond, a thioether bond, a carbonyl bond, an ester bond, an imino bond, an amide bond, an imide bond, a urethane bond, a urea bond, a carbonate bond, and / or Or a divalent organic group such as at least one divalent hydrocarbon group selected from the group consisting of a hydrocarbon group having a siloxy bond and a hydrocarbon group having a heterocyclic structure containing a nitrogen atom or an oxygen atom; These two or more types are used in combination. Of these (c1), preferred are a divalent hydrocarbon group and a divalent hydrocarbon group having an ether bond.
- Mn of the cationic polymer (a2) is preferably 500 to 20,000, more preferably 1,000 to 15,000, particularly from the viewpoint of antistatic properties and reactivity with the hydrophobic polymer (b) described later. Preferably, it is 1,200 to 8,000.
- cationic polymer (a2) examples include cationic polymers described in JP-A No. 2001-278985.
- (A3) is composed of dicarboxylic acid (e1) having a sulfo group and diol (a0) or polyether (a1) as essential structural units, and 2 to 80, preferably 3 to 60 sulfo groups in the molecule.
- An anionic polymer having a group As the dicarboxylic acid (e1), an aromatic dicarboxylic acid having a sulfo group, an aliphatic dicarboxylic acid having a sulfo group, and a salt in which only these sulfo groups are used can be used.
- aromatic dicarboxylic acid having a sulfo group examples include 5-sulfoisophthalic acid, 2-sulfoisophthalic acid, 4-sulfoisophthalic acid, 4-sulfo-2,6-naphthalenedicarboxylic acid, and ester-forming derivatives thereof [lower Alkyl (C1-4) esters (methyl esters, ethyl esters, etc.), acid anhydrides, etc.].
- Examples of the aliphatic dicarboxylic acid having a sulfo group include sulfosuccinic acid and ester-forming derivatives thereof [lower alkyl (C1-4) esters (methyl esters, ethyl esters, etc.), acid anhydrides, etc.].
- Examples of the salts in which only these sulfo groups are converted include salts of alkali metals (lithium, sodium, potassium, etc.), salts of alkaline earth metals (magnesium, calcium, etc.), ammonium salts, hydroxyalkyl (C2-4).
- Amine salts such as mono-, di- and tri-amines having organic groups (organic amine salts such as mono-, di- and tri-ethylamine, mono-, di- and tri-ethanolamine, diethylethanolamine), and the like Examples include quaternary ammonium salts of amines and combinations of two or more of these. Of these, aromatic dicarboxylic acids having a sulfo group are preferred, 5-sulfoisophthalate is more preferred, and 5-sulfoisophthalic acid sodium salt and 5-sulfoisophthalic acid potassium salt are particularly preferred.
- (a0) and (a1) constituting (a3) C2-10 alkanediol, EG, polyethylene glycol (hereinafter abbreviated as PEG) (degree of polymerization 2-20), bisphenol (bisphenol A, etc.) EO adducts (addition mole number 2 to 60) and mixtures of two or more of these.
- PEG polyethylene glycol
- bisphenol (bisphenol A, etc.) EO adducts addition mole number 2 to 60
- a manufacturing method of (a3) a normal polyester manufacturing method can be applied as it is.
- the polyesterification reaction is usually carried out in a temperature range of 150 to 240 ° C. under reduced pressure, and the reaction time is 0.5 to 20 hours.
- esterification catalysts include antimony catalysts (antimony trioxide, etc.), tin catalysts (monobutyltin oxide, dibutyltin oxide, etc.), titanium catalysts (tetrabutyl titanate, etc.), zirconium catalysts (tetrabutyl zirconate, etc.), metal acetate
- esterification catalysts include antimony catalysts (antimony trioxide, etc.), tin catalysts (monobutyltin oxide, dibutyltin oxide, etc.), titanium catalysts (tetrabutyl titanate, etc.), zirconium catalysts (tetrabutyl zirconate, etc.), metal acetate
- salt catalysts such as zinc acetate
- Mn in (a3) is preferably 500 to 20,000, more preferably 1,000 to 15,000, particularly preferably 1 from the viewpoint of antistatic properties and reactivity with the hydrophobic polymer (b) described later. , 200 to 8,000.
- the hydrophobic polymer (b) in the present invention includes at least one hydrophobic polymer selected from the group consisting of polyolefin (b1), polyamide (b2), polyamideimide (b3) and polyester (b4).
- the hydrophobic polymer means a polymer having a surface resistivity of 1 ⁇ 10 14 to 1 ⁇ 10 17 ⁇ .
- polyolefin (b1) a polyolefin (b11) having carbonyl groups (preferably carboxyl groups, the same shall apply hereinafter) at both ends of the polymer, a polyolefin (b12) having hydroxyl groups at both ends of the polymer, and an amino group as a polymer
- the polyolefin (b13) having both ends thereof and the polyolefin (b14) having isocyanate groups at both ends of the polymer can be used.
- a polyolefin (b15) having a carbonyl group at one end of the polymer a polyolefin (b16) having a hydroxyl group at one end of the polymer, a polyolefin (b17) having an amino group at one end of the polymer, and an isocyanate group as a piece of polymer.
- Polyolefin (b18) having a terminal can be used.
- polyolefins (b11) and (b15) having a carbonyl group are preferable because of easy modification.
- (B11) includes a polyolefin (b10) having a main component (preferably a content of 50% or more, more preferably 75% or more, particularly preferably 80 to 100%) at both ends of the polyolefin (b10) which can be modified at both ends.
- a group into which a group is introduced is used.
- those having hydroxyl groups introduced at both ends of (b10) are used.
- those in which amino groups are introduced at both ends of (b10) are used.
- (b14) those obtained by introducing isocyanate groups at both ends of (b10) are used.
- one end of a polyolefin (b100) containing a polyolefin whose one end can be modified as a main component (preferably a content of 50% or more, more preferably 75% or more, particularly preferably 80 to 100%) A group into which a group is introduced is used.
- a group into which a group is introduced is used.
- one obtained by introducing a hydroxyl group at one end of (b100) is used.
- (b17) one obtained by introducing an amino group at one end of (b100) is used.
- an isocyanate group introduced at one end of (b100) is used.
- (B10) means (co) polymerization (polymerization or copolymerization) of one or a mixture of two or more C2-30 (preferably 2-12, more preferably 2-10) olefins. )) And the degraded polyolefin [the one obtained by mechanically, thermally or chemically degrading a high molecular weight polyolefin (preferably Mn 50,000 to 150,000)] (reduced) Method). From the viewpoint of easy modification and availability of introduction of a carbonyl group, a hydroxyl group, an amino group or an isocyanate group, a degraded polyolefin, particularly a thermally degraded polyolefin is preferred.
- the heat-degraded polyolefin is not particularly limited, but is heat-degraded by heating a high-molecular-weight polyolefin in an inert gas (usually at 300 to 450 ° C. for 0.5 to 10 hours) (for example, Japanese Patent Laid-Open No. Hei 3). -62804).
- a high-molecular-weight polyolefin in an inert gas usually at 300 to 450 ° C. for 0.5 to 10 hours
- examples of the high molecular weight polyolefin used in the thermal degradation method include (co) polymers of one or a mixture of two or more C2-30 (preferably 2-12, more preferably 2-10) olefins. Can be used.
- the same as those used for the production of the polyolefin (polymerization method) described later can be used, and among these, ethylene, propylene, C4-12 ⁇ -olefin and two or more of these are preferable. More preferred are ethylene, propylene, C4-10 ⁇ -olefins and mixtures of two or more thereof, particularly preferred are ethylene, propylene, and mixtures of two or more thereof.
- Examples of the C2-30 olefin used in the production of the polyolefin (polymerization method) include ethylene, propylene, C4-30 (preferably 4-12, more preferably 4-10) ⁇ -olefin and C4-30.
- a diene of (preferably 4-18, more preferably 4-8) is used.
- Examples of the ⁇ -olefin include 1-butene, 4-methyl-1-pentene, 1-pentene, 1-octene, 1-decene and 1-dodecene.
- Examples of the diene include butadiene, isoprene, cyclopentadiene, 1,11-dodecadiene, and the like.
- ethylene, propylene, C4-12 ⁇ -olefin, butadiene and isoprene are preferable, ethylene, propylene, C4-10 ⁇ -olefin and butadiene are more preferable, and ethylene, propylene and butadiene are particularly preferable. is there.
- Mn of the polyolefin (b10) whose main component is a polyolefin that can be modified at both ends is preferably 800 to 20,000, more preferably 1,000 to 10,000, and particularly preferably 1,200 to 6,000. is there. When Mn is within this range, the antistatic property is further improved.
- the amount of the double bond in (b10) is preferably 1 to 40 per 1,000 carbon atoms, more preferably 2 to 30, and particularly preferably 4 to 20. When the amount of the double bond is within this range, the antistatic property is further improved.
- the average number of double bonds per molecule is preferably 1.1 to 5.0, more preferably 1.3 to 3.0, particularly preferably 1.5 to 2.5, and most preferably 1.8. ⁇ 2.2.
- (B100) can be obtained in the same manner as (b10).
- the Mn of (b100) is usually 2,000 to 50,000, preferably 2,500 to 30,000, more preferably 3,000 to 20,000.
- (B100) has a double bond of 0.3 to 20, preferably 0.5 to 15, more preferably 0.7 to 10 per 1,000 carbon atoms.
- low molecular weight polyolefins particularly polyethylene and / or polypropylene having Mn of 2,000 to 20,000
- the low molecular weight polyolefin obtained by the thermal degradation method has a Mn in the range of 5,000 to 30,000 and an average terminal double bond amount per molecule of 1 to 1.5.
- (b10) and (b100) are usually obtained as a mixture of these, but these mixtures may be used as they are or may be used after purification and separation. From the viewpoint of production cost and the like, it is preferably used as a mixture.
- the polyolefin (b11) having a carbonyl group at both ends of the polymer includes an ⁇ , ⁇ unsaturated carboxylic acid (anhydride) ( ⁇ , ⁇ -unsaturated carboxylic acid, its C1-4 alkyl ester) at the end of (b10) Or an anhydride thereof, the same shall apply hereinafter))
- (B10) is a polyolefin having a structure modified by oxidation or hydroformylation (b11-3)
- (b11-3) is a polyolefin having a structure secondarily modified with a lactam or aminocarboxylic acid (b11-4) A mixture of two or more of these can be used.
- (B11-1) can be obtained by modifying (b10) with an ⁇ , ⁇ -unsaturated carboxylic acid (anhydride).
- ⁇ , ⁇ -unsaturated carboxylic acid (anhydride) used for modification monocarboxylic acid, dicarboxylic acid, alkyl (C1-4) ester thereof and anhydride thereof can be used, for example, (meth) acrylic acid (Means acrylic acid or methacrylic acid; the same shall apply hereinafter), methyl (meth) acrylate, butyl (meth) acrylate, maleic acid (anhydride), dimethyl maleate, fumaric acid, itaconic acid (anhydride) , Diethyl itaconate and citraconic acid (anhydride).
- dicarboxylic acids, alkyl esters thereof and anhydrides thereof are preferred, maleic acid (anhydride) and fumaric acid are more preferred, and maleic acid (anhydride) is particularly preferred.
- the amount of ⁇ , ⁇ -unsaturated carboxylic acid (anhydride) used for modification is preferably 0.5 to 40%, more preferably 1 to 30%, and particularly preferably 2 based on the weight of the polyolefin (b10). ⁇ 20%.
- the amount of ⁇ , ⁇ -unsaturated carboxylic acid (anhydride) is within this range, it becomes easier to take a repeating structure, and the antistatic property is further improved.
- the modification with ⁇ , ⁇ -unsaturated carboxylic acid (anhydride) can be carried out by various methods. For example, the terminal double bond of (b10) can be modified by either solution method or melt method.
- ⁇ -unsaturated carboxylic acid can be thermally added (ene reaction).
- the temperature at which (b10) is reacted with the ⁇ , ⁇ -unsaturated carboxylic acid (anhydride) is usually 170 to 230 ° C.
- (B11-2) can be obtained by secondarily modifying (b11-1) with a lactam or an aminocarboxylic acid.
- a lactam preferably 6-8, more preferably 6) lactam and the like can be used, and examples thereof include caprolactam, enantolactam, laurolactam and undecanolactam.
- aminocarboxylic acid C2-12 (preferably 4-12, more preferably 6-12) aminocarboxylic acid can be used.
- amino acids for example, amino acids (glycine, alanine, valine, leucine, isoleucine, phenylalanine, etc.)
- ⁇ -aminocaproic acid for example, amino acids (glycine, alanine, valine, leucine, isoleucine, phenylalanine, etc.)
- ⁇ -aminocaproic acid for example, amino acids (glycine, alanine, valine, leucine, isoleucine, phenylalanine, etc.)
- ⁇ -aminocaproic acid for example, amino acids (glycine, alanine, valine, leucine, isoleucine, phenylalanine, etc.)
- ⁇ -aminocaproic acid for example, amino acids (glycine, alanine, valine, leucine, isoleucine, phenylalanine, etc.)
- ⁇ -aminocaproic acid for example, amino acids (g
- caprolactam, laurolactam, glycine, leucine, ⁇ -aminocaprylic acid, 11-aminoundecanoic acid and 12-aminododecanoic acid are preferred, and caprolactam, laurolactam, ⁇ -aminocaprylic acid, 11-amino are more preferred.
- Undecanoic acid and 12-aminododecanoic acid particularly preferably caprolactam and 12-aminododecanoic acid.
- the amount of lactam or aminocarboxylic acid used for secondary modification is preferably 0.1-50, more preferably 0.3-20, per carboxyl group of ⁇ , ⁇ unsaturated carboxylic acid (anhydride). Particularly preferred is 0.5 to 10 and most preferred is 1 to 2. When this amount is within this range, it becomes easier to take a repeating structure, and the antistatic property is further improved.
- (B11-3) can be obtained by introducing (b10) a carbonyl group by oxidation with oxygen and / or ozone or hydroformylation with an oxo method.
- the introduction of the carbonyl group by the oxidation method can be performed by a known method, for example, the method described in US Pat. No. 3,692,877.
- the introduction of a carbonyl group by hydroformylation can be performed by a known method, for example, Macromolecules 1 Vol. 31, 5943 page.
- (B11-4) can be obtained by secondary modification of (b11-3) with a lactam or an aminocarboxylic acid.
- the lactam and aminocarboxylic acid and preferred ranges thereof are the same as those which can be used in the production of (b11-2).
- the amount of lactam and aminocarboxylic acid used is the same.
- Mn in (b11) is preferably 800 to 25,000, more preferably 1,000 to 20,000, particularly preferably 2,500, from the viewpoint of heat resistance and reactivity with the hydrophilic polymer (a). ⁇ 10,000.
- the acid value of (b11) is preferably 4 to 280 (unit is mg KOH / g. In the following, only numerical values are described), more preferably 4 to 100, from the viewpoint of reactivity with (a). Particularly preferred is 5 to 50.
- polyolefin (b12) having a hydroxyl group at both ends of the polymer a polyolefin having a hydroxyl group obtained by modifying the polyolefin (b11) having a carbonyl group at both ends of the polymer with hydroxylamine and a mixture of two or more of these are used.
- Hydroxylamines that can be used for modification include C2-10 hydroxylamines such as 2-aminoethanol, 3-aminopropanol, 1-amino-2-propanol, 4-aminobutanol, 5-aminopentanol, and 6-amino. Examples include hexanol and 3-aminomethyl-3,5,5-trimethylcyclohexanol.
- 2-aminoethanol 3-aminopropanol, 4-aminobutanol, 5-aminopentanol and 6-aminohexanol are preferred, 2-aminoethanol and 4-aminobutanol are particularly preferred. Is 2-aminoethanol.
- the amount of hydroxylamine used for modification is preferably 0.1 to 2, more preferably 0.3 to 1.5, particularly preferably, per residue of ⁇ , ⁇ unsaturated carboxylic acid (anhydride). Is 0.5 to 1.2, most preferably 1. When the amount of hydroxylamine is within this range, it becomes easier to take a repeating structure, and the antistatic property is further improved.
- Mn in (b12) is preferably 800 to 25,000, more preferably 1,000 to 20,000, particularly preferably 2,500, from the viewpoints of heat resistance and reactivity with the hydrophilic polymer (a). ⁇ 10,000.
- the hydroxyl value of (b12) is preferably 4 to 280 (mg KOH / g. In the following, only numerical values are described), more preferably 4 to 100, particularly from the viewpoint of reactivity with (a). Preferably it is 5-50.
- polyolefin (b13) having amino groups at both ends of the polymer a polyolefin having an amino group obtained by modifying the polyolefin (b11) having the carbonyl group at both ends of the polymer with a diamine (Q1), and two or more of these Mixtures can be used.
- diamine (Q1) used for the modification C2-12 diamines and the like can be used. Examples thereof include ethylenediamine, hexamethylenediamine, heptamethylenediamine, octamethylenediamine, and decamethylenediamine.
- ethylenediamine, hexamethylenediamine, heptamethylenediamine and octamethylenediamine are preferable, ethylenediamine and hexamethylenediamine are more preferable, and ethylenediamine is particularly preferable.
- the amount of diamine used for modification is preferably 0.1 to 2, more preferably 0.3 to 1.5, and still more preferably, per residue of ⁇ , ⁇ unsaturated carboxylic acid (anhydride). 0.5 to 1.2, particularly preferably 1.
- the amount of diamine is within this range, it becomes easier to take a repeating structure, and the antistatic property is further improved.
- 2 to 1,000, more preferably 5 to 800, residues per residue of ⁇ , ⁇ unsaturated carboxylic acid (anhydride) are used. It is particularly preferable to use 10 to 500 diamines, and to remove the excess diamine in the end reaction under reduced pressure (usually 120 ° C. to 230 ° C.).
- Mn in (b13) is preferably 800 to 25,000, more preferably 1,000 to 20,000, and particularly preferably 2,500, from the viewpoints of heat resistance and reactivity with the hydrophilic polymer (a). ⁇ : 10,000.
- the amine value of (b13) is preferably 4 to 280 (unit is mg KOH / g; hereinafter, only numerical values are described) from the viewpoint of reactivity with (a), more preferably 4 to 100, Particularly preferred is 5 to 50.
- a polyolefin having an isocyanate group obtained by modifying (b12) with poly (2 to 3 or more) isocyanate hereinafter abbreviated as PI
- PI polyolefin having an isocyanate group obtained by modifying (b12) with poly (2 to 3 or more) isocyanate
- C 6 to 20 aromatic PI
- C2 to 18 aliphatic PI 6 to 20 aromatic PI
- C8 to 15 araliphatic PI Modified products of these PIs, and mixtures of two or more thereof.
- aromatic PI examples include 1,3- and / or 1,4-phenylene diisocyanate (diisocyanate is abbreviated as DI hereinafter), 2,4- and / or 2,6-tolylene DI (TDI), TDI, 2,4′- and / or 4,4′-diphenylmethane DI (MDI), 4,4′-diisocyanatobiphenyl, 3,3′-dimethyl-4,4′-diisocyanatobiphenyl, 3, Examples thereof include 3′-dimethyl-4,4′-diisocyanatodiphenylmethane, 1,5-naphthylene DI and the like.
- DI 1,3- and / or 1,4-phenylene diisocyanate
- DI 2,4- and / or 2,6-tolylene DI
- MDI 2,4- and / or 4,4′-diphenylmethane DI
- MDI 4,4′-diisocyanatobiphenyl, 3,3′-d
- aliphatic PI examples include ethylene DI, tetramethylene DI, hexamethylene DI (HDI), dodecamethylene DI, 2,2,4-trimethylhexamethylene DI, lysine DI, and 2,6-diisocyanatomethyl carbonate.
- examples include proate, bis (2-isocyanatoethyl) fumarate, bis (2-isocyanatoethyl) carbonate, 2-isocyanatoethyl-2,6-diisocyanatohexanoate.
- alicyclic PI examples include isophorone DI (IPDI), dicyclohexylmethane-4,4′-DI (hydrogenated MDI), cyclohexylene DI, methylcyclohexylene DI (hydrogenated TDI), bis (2- And isocyanatoethyl) -4-cyclohexene-1,2-dicarboxylate, 2,5- and / or 2,6-norbornane DI.
- araliphatic PI examples include m- and / or p-xylylene DI (XDD, ⁇ , ⁇ , ⁇ ', ⁇ '-tetramethylxylylene diisocyanate (TMXDI) and the like.
- modified PI examples include urethane modified, urea modified, carbodiimide modified, uretdione modified, and the like. Of these, TDI, MDI and HDI are preferred, and HDI is more preferred.
- the reaction between (b12) and PI can be carried out in the same manner as a normal urethanization reaction.
- the equivalent ratio (NCO / OH ratio) between PI and (b12) is usually 1.8 / 1 to 3/1, preferably 2/1.
- a catalyst usually used for polyurethane may be used if necessary.
- Such catalysts include metal catalysts such as tin catalysts [dibutyltin dilaurate, stannous octoate, etc.], lead catalysts [lead 2-ethylhexanoate, lead octenoate, etc.], other metal catalysts [metal naphthenates] (Cobalt naphthenate, etc.), phenylmercuric propionate, etc.]; amine catalysts such as triethylenediamine, diazabicycloalkenes [1,8-diazabicyclo [5,4,0] undecene-7 [DBU (San Apro Corporation) Manufactured, registered trademark)], etc.], dialkylaminoalkylamine [dimethylaminoethylamine, dimethylaminooctylamine, etc.], heterocyclic aminoalkylamine [2- (1-aziridinyl) ethylamine, 4- (1-piperidinyl) -2 -Hexyl
- Mn in (b14) is preferably 800 to 25,000, more preferably 1,000 to 20,000, particularly preferably 2,500, from the viewpoint of heat resistance and reactivity with the hydrophilic polymer (a). ⁇ 10,000.
- examples of the polyamide (b2) include those obtained by ring-opening polymerization or polycondensation of amide-forming monomers.
- examples of amide forming monomers include lactam (b21), aminocarboxylic acid (b22), and diamine (b23) / dicarboxylic acid (b24).
- the lactam (b21) includes C6-12, such as caprolactam, enantolactam, laurolactam and undecanolactam.
- examples of the ring-opening polymer (b21) include nylon 4, -5, -6, -8 and -12.
- aminocarboxylic acid (b22) examples include C6-12, such as ⁇ -aminocaproic acid, ⁇ -aminoenanthic acid, ⁇ -aminocaprylic acid, ⁇ -aminopelargonic acid, ⁇ -aminocapric acid, 11-aminoundecanoic acid, 12 -Aminododecanoic acid and mixtures thereof.
- Examples of the self-polycondensate of (b22) include nylon 7 by polycondensation of ⁇ -aminoenanthic acid, nylon 11 by polycondensation of ⁇ -aminoundecanoic acid, and nylon 12 by polycondensation of 12-aminododecanoic acid. .
- Diamine (b23) includes C2-40, such as aliphatic, alicyclic and aromatic (aliphatic) diamines, and mixtures thereof.
- Aliphatic diamines include C2-40, such as ethylene diamine, propylene diamine, hexamethylene diamine, decamethylene diamine, 1,12 dodecane diamine, 1,18-octadecane diamine and 1,2-eicosane diamine.
- Alicyclic diamines include C5-40, such as 1,3- and 1,4-cyclohexanediamine, isophoronediamine, 4,4′-diaminocyclohexylmethane and 2,2-bis (4-aminocyclohexyl) propane. It is done.
- araliphatic diamines include C7-20, such as (para or meta) xylylenediamine, bis (aminoethyl) benzene, bis (aminopropyl) benzene and bis (aminobutyl) benzene.
- Aromatic diamines include C6-40, such as p-phenylenediamine, 2,4- and 2,6toluylenediamine and 2,2-bis (4,4'-diaminophenyl) propane.
- dicarboxylic acid (b24) examples include C2-40 dicarboxylic acids such as aliphatic dicarboxylic acids, aromatic ring-containing dicarboxylic acids, alicyclic dicarboxylic acids, derivatives of these dicarboxylic acids [for example, acid anhydrides, lower (C1-4 ) Alkyl esters and dicarboxylates [alkali metal (eg, lithium, sodium and potassium) salts]] and mixtures of two or more thereof.
- dicarboxylic acids such as aliphatic dicarboxylic acids, aromatic ring-containing dicarboxylic acids, alicyclic dicarboxylic acids, derivatives of these dicarboxylic acids [for example, acid anhydrides, lower (C1-4 ) Alkyl esters and dicarboxylates [alkali metal (eg, lithium, sodium and potassium) salts]] and mixtures of two or more thereof.
- Examples of the aliphatic dicarboxylic acid include C2 to 40 (preferably 4 to 20, more preferably 6 to 12 from the viewpoint of antistatic properties), such as succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, Examples include sebacic acid, undecanedioic acid, dodecanedioic acid, maleic acid, fumaric acid and itaconic acid.
- aromatic ring-containing dicarboxylic acid examples include C8-40 (preferably 8 to 16, more preferably 8-14 from the viewpoint of antistatic properties), such as ortho-, iso- and terephthalic acid, 2,6- and -2, Examples include 7-naphthalenedicarboxylic acid, diphenyl-4,4′-dicarboxylic acid, diphenoxyethanedicarboxylic acid, tolylene dicarboxylic acid, xylylene dicarboxylic acid and 5-sulfoisophthalic acid alkali metal (same as above) salts.
- Examples of the alicyclic dicarboxylic acid include C5 to 40 (preferably 6 to 18, more preferably 8 to 14 from the viewpoint of antistatic properties), such as cyclopropanedicarboxylic acid, 1,4-cyclohexanedicarboxylic acid, cyclohexenedicarboxylic acid, Examples include dicyclohexyl-4,4'-dicarboxylic acid and camphoric acid.
- aliphatic dicarboxylic acids and aromatic ring-containing dicarboxylic acids are preferable from the viewpoint of antistatic properties, and adipic acid, sebacic acid, terephthalic acid, isophthalic acid, and sodium 3-sulfoisophthalate are more preferable.
- examples of the acid anhydride include anhydrides of the above dicarboxylic acid, such as maleic anhydride, itaconic anhydride, and phthalic anhydride;
- examples of the lower (C1-4) alkyl ester include lower alkyl esters of the above dicarboxylic acid, such as Mention may be made of dimethyl adipate and ortho-, iso- and dimethyl terephthalate.
- Polycondensates of diamines and dicarboxylic acids include nylon 66, -610, -69 or -612, and tetramethylene by polycondensation of hexamethylenediamine and adipic acid, sebacic acid, azelaic acid or dodecanedioic acid, respectively. Mention may be made of nylon 46 or MXD6 by polycondensation of diamine or metaxylylenediamine with adipic acid. Examples of the copolymer nylon include nylon 6/66 (adipic acid / hexamethylenediamine nylon salt and caprolactam copolymer) and nylon 6/12 (12-aminododecanoic acid and caprolactam copolymer). .
- caprolactam 12-aminododecanoic acid, adipic acid / metaxylylenediamine and adipic acid / hexamethylenediamine are more preferable, and caprolactam is more preferable from the viewpoint of antistatic properties.
- the production method of the polyamide (b2) includes one or more of the dicarboxylic acid (b24) (C2-40, preferably 4-20) or the diamine (b23) (C2-40, preferably 4-20). Can be used as a molecular weight modifier, and in the presence thereof, the amide-forming monomer can be subjected to ring-opening polymerization or polycondensation.
- the C2-40 diamine include those exemplified as the above (b23). Of these, aliphatic diamines are preferable from the viewpoint of reactivity with other amide-forming monomers, and hexamethylenediamine is more preferable. And decamethylenediamine.
- Examples of the C2-40 dicarboxylic acid include those exemplified as the above (b24). Of these, aliphatic dicarboxylic acids and aromatic dicarboxylic acids are preferred from the viewpoint of reactivity with other amide-forming monomers. Acids, more preferred are adipic acid, sebacic acid, terephthalic acid, isophthalic acid and sodium 3-sulfoisophthalate.
- the amount of the molecular weight regulator used is preferably based on the total weight of the amide-forming monomer and the molecular weight regulator, the lower limit is from the viewpoint of antistatic properties of the molded product described later, and the upper limit is from the viewpoint of heat resistance of the molded product. Is from 2 to 80%, more preferably from 4 to 75%.
- the Mn of the polyamide (b2) is preferably 200 to 5,000, and more preferably 500 to 4,000 from the viewpoint of moldability and production of the antistatic agent.
- the polyamideimide (b3) includes the amide-forming monomer, and a trivalent or tetravalent aromatic polymer that can form at least one imide ring with the amide-forming monomer.
- Carboxylic acid or its anhydride [hereinafter abbreviated as aromatic polycarboxylic acid (anhydride). (Hereinafter sometimes referred to as an amidoimide-forming monomer), and mixtures thereof.
- aromatic polycarboxylic acid (anhydride) (Hereinafter sometimes referred to as an amidoimide-forming monomer), and mixtures thereof.
- the diamine (b23) and the dicarboxylic acid (b24) can also be used as a molecular weight modifier during polymerization.
- aromatic polycarboxylic acid examples include monocyclic (C9-12) and polycyclic (C3-20) carboxylic acids such as trivalent [monocyclic (trimellitic acid, etc.), polycyclic (1,2 , 5- and 2,6,7-naphthalenetricarboxylic acid, 3,3 ′, 4-biphenyltricarboxylic acid, benzophenone-3,3 ′, 4-tricarboxylic acid, diphenylsulfone-3,3 ′, 4-tricarboxylic acid, Diphenyl ether-3,3 ', 4-tricarboxylic acid and the like, and their anhydrides] carboxylic acid; and tetravalent [monocyclic (pyromellitic acid etc.), polycyclic (biphenyl-2,2', 3,3 ' -Tetracarboxylic acid, benzophenone-2,2 ', 3,3'-tetracarboxylic acid, diphenylsulfone
- the polyamideimide (b3) As a method for producing the polyamideimide (b3), as in the case of the polyamide (b2), one or more of the dicarboxylic acid (C2-40) or the diamine (C2-40) is used as a molecular weight modifier, Examples thereof include a method of ring-opening polymerization or polycondensation of the above-mentioned amidoimide-forming monomer in the presence thereof. Preferred among the dicarboxylic acid and diamine are the same as in the case of (b2).
- the amount of the molecular weight modifier used is preferably based on the total weight of the amide imide-forming monomer and the molecular weight modifier, the lower limit is from the viewpoint of antistatic properties of the molded product described later, and the upper limit is from the viewpoint of heat resistance of the molded product. Is from 2 to 80%, more preferably from 4 to 75%.
- Mn in (b3) is preferably 200 to 5,000, more preferably 500 to 4,000 from the viewpoint of moldability and production of an antistatic agent.
- examples of the polyester (b4) include those obtained by subjecting an ester-forming monomer to ring-opening polymerization, polycondensation or transesterification by a conventional method.
- examples of the ester-forming monomer include lactones, hydroxycarboxylic acids, combinations of the diol (a0) and the dicarboxylic acid (b24), and mixtures thereof.
- lactones examples include C4-20, such as ⁇ -butyrolactone, ⁇ -valerolactone, ⁇ -caprolactone, ⁇ -pimerolactone, ⁇ -caprolactone, ⁇ -decanolactone, enanthlactone, laurolactone, undecanolactone and eicosanolactone. Can be mentioned.
- hydroxycarboxylic acids include C2-20, such as hydroxyacetic acid, lactic acid, ⁇ -hydroxycaproic acid, ⁇ -hydroxyenanthic acid, ⁇ -hydroxycaprylic acid, ⁇ -hydroxypergonic acid, ⁇ -hydroxycapric acid, 11- Examples thereof include hydroxyundecanoic acid, 12-hydroxydodecanoic acid and 20-hydroxyeicosanoic acid, tropic acid and benzylic acid.
- polyester (b4) As a method for producing the polyester (b4), one or more of the above diol (a0) or the above dicarboxylic acid (b24) is used as a molecular weight modifier, and the above ester-forming monomer is used in the usual manner. Can be used for ring-opening polymerization, polycondensation or transesterification.
- the Mn of the hydrophobic polymer (b) is preferably 200 to 25,000, more preferably 500 to 20,000, and particularly preferably 1,000 to 15,000.
- the block of the hydrophilic polymer (a) and the block of the hydrophobic polymer (b) are an ester bond, an amide bond, an ether bond, a urethane bond, and a urea. It has a structure in which they are alternately bonded via at least one bond selected from the group consisting of a bond and an imide bond.
- the proportion of the block (a) based on the weight of the block polymer is preferably 20 to 80%, more preferably 30 to 70% from the viewpoint of antistatic properties and moldability of the antistatic resin composition described later. .
- the ester bond, amide bond and imide bond are, for example, polyether (a1) [(a11) or (a12)] and the hydrophobic polymer (b) [ (B11) or (b15) etc.], and the ether bond is, for example, the above-mentioned epoxy-modified product obtained by reacting a polyether diol (a11) with an epihalohydrin, and a polyolefin having a hydroxyl group at both ends of the polymer (b12 ).
- the urethane bond is formed by reaction of, for example, polyether diol (a11) and polyolefin (b14) having isocyanate groups at both ends, and the urea bond is formed by, for example, polyether diamine (a12) and isocyanate groups at both ends. It is formed by the reaction with polyolefin (b14).
- the structure in which the block (a) and the block (b) are alternately connected to each other in the block polymer comprises (a)-(b) type, (a)-(b)-(a) type, ( b)-(a)-(b) type and (ab) n type (n is an integer of 2 or more).
- the structure of the block polymer is preferably an (ab) n- type structure from the viewpoint of antistatic properties.
- the average number of repeating units (Nn) of the (ab) n- type structure is preferably 2 to 50, more preferably 2.3 to 30, particularly from the viewpoint of antistatic properties and mechanical properties of the molded product. Preferably it is 2.7 to 20, most preferably 3 to 10. Nn can be determined by Mn and 1 H-NMR analysis of the block polymer.
- the Mn of the block polymer is preferably 2,000 to 100,000, more preferably 5,000 to 60,000, particularly preferably 10,000 to 40,000 from the viewpoint of melt viscosity.
- thermoplastic resin (B) As the thermoplastic resin (B), polyphenylene ether (PPE) resin (B1); vinyl resin [polyolefin resin (B2) [for example, polypropylene (PP), polyethylene (PE), ethylene-vinyl acetate copolymer resin (EVA), Ethylene-ethyl acrylate copolymer resin], poly (meth) acrylic resin (B3) [for example, polymethyl methacrylate], polystyrene resin (B4) [vinyl group-containing aromatic hydrocarbon alone or vinyl group-containing aromatic hydrocarbon, Copolymers having at least one selected from the group consisting of (meth) acrylic acid esters, (meth) acrylonitrile and butadiene as structural units, such as polystyrene, high impact polystyrene (HIPS), styrene / acrylonitrile copolymers (AN Resin), Acrylonitrile / Butadie / Styrene copolymer
- (B1), (B2), (B3), (B4), (B), (B1), (B4), (B) are preferable from the viewpoint of the mechanical properties of the molded product described later and the dispersibility of the antistatic agent of the present invention in (B).
- B7) and more preferable are (B2), (B4), and (B7).
- polyphenylene ether resin (B1) examples include poly (1,4-phenylene) ether, poly (2,6-dimethyl-1,4-phenylene) ether, poly (2,6-diethyl-1,4-phenylene).
- Ether poly (2-methyl-6-ethyl-1,4-phenylene) ether, poly (2-methyl-6-propyl-1,4-phenylene) ether, poly (2,6-dipropyl-1,4) -Phenylene) ether, poly (2-ethyl-6-propyl-1,4-phenylene) ether, poly (2,6-dimethoxy-1,4-phenylene) ether, poly (2,6-dichloromethyl-1, 4-phenylene) ether, poly (2,6-dibromo-1,4-phenylene) ether, poly (2,6-diphenyl-1,4-phenylene) ether, poly 2,6 Jiguroro-1,4-phenylene) ether, poly (2-(
- vinyl resins [(B2) to (B4)] those obtained by (co) polymerizing the following vinyl monomers by various polymerization methods (radical polymerization method, Ziegler catalyst polymerization method, metallocene catalyst polymerization method, etc.) Is mentioned.
- vinyl monomers include unsaturated hydrocarbons (aliphatic hydrocarbons, aromatic ring-containing hydrocarbons, alicyclic hydrocarbons, etc.), acrylic monomers, other unsaturated mono- and dicarboxylic acids and their derivatives, and carboxylic acids of unsaturated alcohols.
- unsaturated hydrocarbons aliphatic hydrocarbons, aromatic ring-containing hydrocarbons, alicyclic hydrocarbons, etc.
- acrylic monomers other unsaturated mono- and dicarboxylic acids and their derivatives
- carboxylic acids of unsaturated alcohols examples include acid esters, alkyl ethers of unsaturated alcohols, halogen-containing vinyl monomers, and combinations (random and / or block) of two or more thereof.
- Aliphatic hydrocarbons include C2-30 olefins [ethylene, propylene, C4-30 ⁇ -olefins (1-butene, 4-methyl-1-pentene, 1-pentene, 1-octene, 1-decene, 1 -Dodecene etc.), etc.], C4-30 dienes [alkadienes (butadiene, isoprene etc.), cycloalkadienes (cyclopentadiene etc.), etc.].
- C2-30 olefins ethylene, propylene, C4-30 ⁇ -olefins (1-butene, 4-methyl-1-pentene, 1-pentene, 1-octene, 1-decene, 1 -Dodecene etc.), etc.
- C4-30 dienes alkadienes (butadiene, isoprene etc.), cycloalkadienes (cyclopentadiene etc.), etc.
- aromatic ring-containing hydrocarbon examples include C8-30 styrene and its derivatives such as o-, m- and p-alkyl (C1-10) styrene (vinyltoluene, etc.), ⁇ -alkyl (C1-10) styrene ( ⁇ -methylstyrene and the like) and halogenated styrene (chlorostyrene and the like).
- Acrylic monomers include C3-30, such as (meth) acrylic acid and its derivatives.
- derivatives of (meth) acrylic acid include alkyl (C1-20) (meth) acrylate [methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, etc.], mono- and di-alkyl (C1 4)
- Aminoalkyl (C2-4) (meth) acrylate [methylaminoethyl (meth) acrylate, dimethylaminoethyl (meth) acrylate, etc.], (meth) acrylonitrile and (meth) acrylamide.
- unsaturated mono- and dicarboxylic acids include C2-30 (preferably 3-20, more preferably 4-15) unsaturated mono- and dicarboxylic acids such as crotonic acid, maleic acid, fumaric acid and itacone
- unsaturated mono- and dicarboxylic acids such as crotonic acid, maleic acid, fumaric acid and itacone
- examples of such derivatives include C5-30, such as mono- and dialkyl (C1-20) esters, acid anhydrides (such as maleic anhydride) and acid imides (such as maleic acid imide).
- carboxylic acid esters of unsaturated alcohols include carboxylic acids (C2-4, such as acetic acid, propionic acid) esters (vinyl acetate, etc.) of unsaturated alcohols [C2-6, such as vinyl alcohol, (meth) allyl alcohol]. It is done.
- alkyl ethers of unsaturated alcohols include alkyl (C1-20) ethers of the above unsaturated alcohols (methyl vinyl ether, ethyl vinyl ether, etc.)
- halogen-containing vinyl monomers include C2-12, such as vinyl chloride, chloride. Vinylidene and chloroprene are mentioned.
- the melt flow rate (hereinafter abbreviated as MFR) of (B2) is preferably 0.5 to 150, more preferably 1 to 100, from the viewpoint of imparting resin physical properties and antistatic properties.
- MFR is measured according to JIS K7210 (1994) (in the case of polypropylene: 230 ° C., load 2.16 kgf, in the case of polyethylene: 190 ° C., load 2.16 kgf).
- the crystallinity of (B2) is preferably 0 to 98%, more preferably 0 to 80%, particularly preferably 0 to 70% from the viewpoint of antistatic properties.
- the degree of crystallinity is measured by methods such as X-ray diffraction and infrared absorption spectrum [Refer to “Solid Structure of Polymers-Laboratory for Polymer Experiments 2” (Hatsugoro Minamishino), page 42, published by Kyoritsu Shuppan 1958. ].
- poly (meth) acrylic resin (B3) for example, one or two or more (co) polymers [methyl poly (meth) acrylate, poly (meth) butyl butyl, etc.] of the acrylic monomers and these Copolymer with one or more of the above-mentioned vinyl monomers copolymerizable with one or more of the monomers [copolymerization ratio (weight ratio) is preferably 5/95 to 95/5, more preferably 50 from the viewpoint of resin physical properties / 50 to 90/10] [except for those included in (B2)].
- the MFR of (B3) is preferably 0.5 to 150, more preferably 1 to 100, from the viewpoint of resin physical properties.
- MFR is measured in accordance with JIS K7210 (1994) [230 ° C., load 1.2 kgf in the case of poly (meth) acrylic resin].
- the polystyrene resin (B4) comprises a vinyl group-containing aromatic hydrocarbon alone or at least one selected from the group consisting of a vinyl group-containing aromatic hydrocarbon and (meth) acrylic acid ester, (meth) acrylonitrile and butadiene.
- Examples of the copolymer include units.
- vinyl group-containing aromatic hydrocarbons examples include C8-30 styrene and derivatives thereof, such as o-, m- and p-alkyl (C1-10) styrene (vinyltoluene etc.), ⁇ -alkyl (C1-10) Examples include styrene ( ⁇ -methylstyrene and the like) and halogenated styrene (chlorostyrene and the like).
- the MFR of (B4) is preferably 0.5 to 150, more preferably 1 to 100, from the viewpoint of resin physical properties and antistatic properties.
- MFR is measured according to JIS K7210 (1994) (in the case of polystyrene resin, 230 ° C., load 1.2 kgf).
- polyester resin (B5) examples include aromatic ring-containing polyesters (polyethylene terephthalate, polybutylene terephthalate, polycyclohexanedimethylene terephthalate, etc.) and aliphatic polyesters (polybutylene adipate, polyethylene adipate, poly- ⁇ -caprolactone, etc.).
- the intrinsic viscosity [ ⁇ ] of (B5) is preferably from 0.1 to 4, more preferably from 0.2 to 3.5, particularly preferably from 0.3 to 3, from the viewpoints of resin physical properties and antistatic properties. [ ⁇ ] is measured with a Ubbelohde 1A viscometer at 25 ° C. for a 0.5 wt% orthochlorophenol solution of the polymer.
- polyamide resin (B6) a lactam ring-opening polymer (B61), a dehydrated polyconjugate of diamine and dicarboxylic acid (B62), a self-polycondensate of aminocarboxylic acid (B63), and a heavy (condensed) condensate thereof.
- lactam ring-opening polymer (B61) a dehydrated polyconjugate of diamine and dicarboxylic acid
- B63 self-polycondensate of aminocarboxylic acid
- heavy (condensed) condensate thereof examples thereof include copolymer nylon having two or more types of monomer units.
- Examples of the lactam in (B61) include those exemplified as the above (b21), and examples of (B61) include nylon 4, -5, -6, -8 and -12.
- Examples of the diamine and dicarboxylic acid in (B62) include those exemplified as the above (b23) and (b24), and (B62) includes nylon 66, hexamethylenediamine and sebacine by condensation polymerization of hexanemethylenediamine and adipic acid. Examples thereof include nylon 610 by acid polycondensation.
- Examples of the aminocarboxylic acid in (B63) include those exemplified as the above (b22).
- Examples of (B63) include nylon 7 by polycondensation of aminoenanthic acid, nylon 11 by polycondensation of ⁇ -aminoundecanoic acid, Nylon 12 and the like by polycondensation of 12-aminododecanoic acid.
- a molecular weight modifier may be used, and examples of the molecular weight modifier include the diamines and / or dicarboxylic acids exemplified as the above (b23) and (b24).
- dicarboxylic acids as molecular weight modifiers, preferred are aliphatic dicarboxylic acids, aromatic dicarboxylic acids and 3-sulfoisophthalic acid alkali metal salts, and more preferred are adipic acid, sebacic acid, terephthalic acid, isophthalic acid and 3- Sodium sulfoisophthalate.
- diamines as molecular weight regulators, hexamethylene diamine and decamethylene diamine are preferable.
- the MFR of (B6) is preferably 0.5 to 150, more preferably 1 to 100, from the viewpoint of resin physical properties and antistatic properties.
- MFR is measured according to JIS K7210 (1994) (in the case of polyamide resin, 230 ° C., load 0.325 kgf).
- polycarbonate resin (B7) examples include bisphenol compounds (C12 to 20, for example, bisphenol A, -F and -S, 4,4'-dihydroxydiphenyl-2,2-butane) and dihydroxybiphenyl polycarbonates such as the above bisphenols. Examples include condensates with phosgene or carbonic acid diesters.
- bisphenol compounds bisphenol A is preferable from the viewpoint of dispersibility of the block polymer (A).
- the MFR of (B7) is preferably 0.5 to 150, more preferably 1 to 100, from the viewpoint of resin physical properties and antistatic properties.
- MFR is measured according to JIS K7210 (1994) (in the case of polycarbonate resin, 280 ° C., load 2.16 kgf).
- the MFR of (B8) is preferably 0.5 to 150, more preferably 1 to 100, from the viewpoint of resin physical properties and antistatic properties.
- the intrinsic viscosity [ ⁇ ] of (B8) is preferably from 0.1 to 4, more preferably from 0.2 to 3.5, particularly preferably from 0.3 to 3, from the viewpoints of resin physical properties and antistatic properties.
- the antistatic resin composition (X) of the present invention comprises an antistatic agent (A) and a thermoplastic resin (B), and the melt viscosity ratio at 220 ° C. of (B) and (A) is 0.00. 5 to 5, preferably from the viewpoint of antistatic properties, 0.7 to 3.5, more preferably 0.8 to 2.5, particularly preferably 0.9 to 1.5, and (B) and (A)
- the absolute value of the difference between SP and 1.0 is preferably 1.0 to 3.0, preferably 1.1 to 2.5, more preferably 1.2 to 2.0 from the viewpoint of antistatic properties and mechanical properties. Resin composition.
- melt viscosity ratio needs to satisfy the above range
- melt viscosity possessed by (B) the melt viscosity possessed by (B)
- each of the melt viscosities possessed by the antistatic agent (A) may be arbitrary and is not particularly limited.
- SP the absolute value of the difference between these SPs must satisfy the above range.
- the SP of the antistatic agent (A) or the SP of (B) may be arbitrary and is not particularly limited.
- the melt viscosity ratio at 220 ° C. of (B) and (A) can be set within the above range by selecting the combination of (B) and (A), and antistatic properties can be set within this range.
- Antistatic resin composition (X) having excellent resistance.
- the absolute value of the difference between the SPs of (A) and (B) can be set within the above range by selecting the combination of (A) and (B).
- Antistatic resin composition (X) having excellent resistance can be set within the above range by selecting the combination of (A) and (B).
- the weight ratio of (A) to (B) in the antistatic resin composition (X) is preferably 0.5 / 99.5 to 10/90, more preferably 1/90 from the viewpoint of antistatic properties and mechanical properties. 99 to 7/93, particularly preferably 3/97 to 5/95.
- One or more additives (C) selected from the group consisting of a flame retardant (C3) and other resin additives (C4) may be contained.
- the antistatic property improver (C1) includes one or two selected from the group consisting of an alkali metal or alkaline earth metal salt (C11), a surfactant (C12) and / or an ionic liquid (C13). A mixture of the above is included.
- C11 includes alkali metal (lithium, sodium, potassium, etc.) and / or alkaline earth metal (magnesium, calcium, etc.) organic acids (C1-7 mono- and dicarboxylic acids such as formic acid, acetic acid, Propionic acid, oxalic acid, succinic acid; salts of C1-7 sulfonic acids such as methanesulfonic acid, p-toluenesulfonic acid; thiocyanic acid, and inorganic acids (hydrohalic acids such as hydrochloric acid, hydrobromic acid)
- a salt of perchloric acid; sulfuric acid; nitric acid; phosphoric acid can be used.
- the amount of (C11) used is preferably 0.001 to 3% based on the total weight of (A) and (B), from the viewpoint of giving a resin molded product having a good appearance without being deposited on the resin surface. Preferably it is 0.01 to 2.5%, particularly preferably 0.1 to 2%, most preferably 0.15 to 1%.
- the method of adding (C11) is not particularly limited, but it is preferable to disperse it in the antistatic agent (A) in advance because it is easy to effectively disperse it in the composition. Further, when (C11) is dispersed in (A), it is particularly preferable to add (C11) in advance during the production (polymerization) of (A).
- the timing for adding (C11) during the production of (A) is not particularly limited, and may be any before, during or after polymerization.
- Surfactant (C12) includes nonionic, anionic, cationic and amphoteric surfactants, and mixtures thereof.
- the nonionic surfactant (C121) include EO addition type nonionic surfactants [for example, higher alcohol (C8-18, the same hereinafter), higher fatty acid (C8-24, same hereinafter) or higher alkylamine ( C8-24) EO adduct (molecular weight 158 or more and Mn 200,000 or less); polyalkylene glycol (molecular weight 150 or more and Mn 6,000 or less) higher fatty acid ester which is an EO adduct of glycol; polyhydric alcohol (C2 ⁇ 18 divalent to octavalent or higher, eg EG, PG, glycerin, pentaerythritol and sorbitan) higher fatty acid ester EO adduct (molecular weight 250 or more and Mn 30,000 or less); higher fatty acid amide EO adduct
- the anionic surfactant (C122) is represented by the following general formula (1). R ⁇ X ⁇ ⁇ Z + (1)
- R represents a monovalent hydrocarbon group of C8 to 30 (preferably C10 to 24, more preferably C12 to 21).
- R include an alkyl group, an alkenyl group, an alkylaryl group, and an arylalkyl group.
- alkyl group examples include octyl, decyl, dodecyl, pentadecyl and octadecyl groups;
- alkenyl groups include octenyl, decenyl, dodecenyl, pentadecenyl and octadecenyl groups;
- alkylaryl group examples include ethylphenyl, pentylphenyl, nonylphenyl, decylphenyl, dodecylphenyl, pentadecylphenyl and octadecylphenyl groups;
- arylalkyl group examples include phenylethyl, phenylpentyl, phenyldecyl, phenylnonyl, phenyldodecyl, phenylpentadecyl and phenyloctadecyl groups.
- X ⁇ represents an anion obtained by removing a proton from at least one group selected from the group consisting of a sulfonic acid group, a sulfinic acid group, a sulfate ester group, a carboxyl group, a phosphate ester group and a phosphite ester group.
- a sulfonic acid group, sulfinic acid groups and sulfate ester groups are preferred, sulfonic acid groups and sulfate ester groups are more preferred, and sulfonic acid groups are particularly preferred.
- Z + is a cation selected from the group consisting of amidinium, pyridinium, pyrazolium and guanidinium cations, metals [alkali metals (lithium, sodium, potassium, etc.), alkaline earth metals (calcium, magnesium, etc.) and IIB Group metals (such as zinc) and the like] or amines [alkylamines ((C1-720) and alkanolamines (C2-12, such as mono-, di- and triethanolamine), etc.]].
- metals alkali metals (lithium, sodium, potassium, etc.), alkaline earth metals (calcium, magnesium, etc.) and IIB Group metals (such as zinc) and the like
- amines alkylamines ((C1-720) and alkanolamines (C2-12, such as mono-, di- and triethanolamine), etc.
- amidinium cation such as 1,2,3,4-tetramethylimidazolinium, 1,3-dimethylimidazolinium;
- imidazolinium cation C5-15 such as 1,2,3,4-tetramethylimidazolinium, 1,3-dimethylimidazolinium;
- Imidazolium cation C5-15 such as 1,3-dimethylimidazolium, 1-ethyl-3-methylimidazolium;
- Tetrahydropyrimidinium cation C6-15 such as 1,3-dimethyl-1,4,5,6-tetrahydropyrimidinium, 1,2,3,4-tetramethyl-1,4,5,6 -Tetrahydropyrimidinium
- Dihydropyrimidinium cation C6-20 such as 1,3-dimethyl-1,4- or -1,6-dihydropyrimidinium [these are 1,3-dimethyl-1,4 (6) -dihydro This is expressed as pyrimidinium, and the same notation is used hereinafter. ], 8-methyl-1,8-diazabicyclo [5,4,0] -7,9 (10) -undecadienium.
- Examples of the pyridinium cation include C6-20, such as 3-methyl-1-propylpyridinium and 1-butyl-3,4-dimethylpyridinium.
- pyrazolium cations include C5-15, such as 1,2-dimethylpyrazolium, 1-n-butyl-2-methylpyrazolium is mentioned.
- Guanidinium cation having an imidazolinium skeleton C8-15 such as 2-dimethylamino-1,3,4-trimethylimidazolinium, 2-diethylamino-1,3,4-trimethylimidazolinium
- Guanidinium cation having an imidazolium skeleton C8-15 such as 2-dimethylamino-1,3,4-trimethylimidazolium, 2-diethylamino-1,3,4-trimethylimidazolium;
- Guanidinium cation having a tetrahydropyrimidinium skeleton C10-20 such as 2-dimethylamino-1,3,4-trimethyl-1,4,5,6-tetrahydropyrimidinium, 2-diethylamino-1 , 3-Dimethyl-4-ethyl-1,4,5,6-tetrahydropyrimidinium;
- Guanidinium cation having a dihydropyrimidinium skeleton C10-20 such as 2-dimethylamino-1,3,4-trimethyl-1,4 (6) -dihydropyrimidinium, 2-diethylamino-1, 3-Dimethyl-4-ethyl-1,4 (6) -dihydropyrimidinium.
- an amidinium cation is preferable from the viewpoint of antistatic properties, an imidazolium cation is more preferable, and a 1-ethyl-3-methylimidazolium cation is particularly preferable.
- the anionic surfactant (C122) specific examples include imidazolium salts of alkanesulfonic acid (1-ethyl-3-methylimidazolium salt of each of dodecanesulfonic acid and pentadecanesulfonic acid, and 1, 3-dimethyl-2-ethylimidazolium salt, etc.), alkene sulfonic acid imidazolium salt (dodecenesulfonic acid and pentadecenesulfonic acid 1-ethyl-3-methylimidazolium salt and 1,3-dimethyl-2- Ethyl imidazolium salts, etc.), imidazolium salts of alkylarene sulfonic acids (1-ethyl-3-methyl imidazolium salt and 1,3-dimethyl-2-ethyl imidazolium of dodecylbenzene sulfonic acid and pentadecyl benzene
- imidazolium salts and metal salts of alkylarene (C8-30) sulfonic acids are preferred from the viewpoint of antistatic properties and appearance of molded articles, and more preferred is 1-ethyl-3 of dodecylbenzenesulfonic acid.
- -Methylimidazolium salt, 1,3-dimethyl-2-ethylimidazolium salt and alkali metal (sodium etc.) salt pentadecanebenzenesulfonic acid, 1-ethyl-3-methylimidazolium salt, 1,3-dimethyl- 2-ethylimidazolium salts and alkali metal (sodium) salts.
- Examples of the cationic surfactant (C123) include quaternary ammonium salts such as alkyltrimethylammonium salts.
- Examples of the amphoteric surfactant (C124) include amino acid-type amphoteric surfactants such as higher alkylaminopropionate, betaine-type amphoteric surfactants such as higher alkyldimethylbetaine and higher alkyldihydroxyethylbetaine.
- Examples of the salt in the amphoteric surfactant (C124) include metal salts such as salts of alkali metals (lithium, sodium, potassium, etc.), alkaline earth metals (calcium, magnesium, etc.) and group IIB metals (zinc, etc.); And ammonium salts [alkylamine (C1-720) salts and alkanolamine (C2-12, such as mono-, di- and triethanolamine) salts] and quaternary ammonium salts. These surfactants may be used alone or in combination of two or more.
- the amount of the surfactant (C12) used is preferably 0.001 to 5%, more preferably 0.01 to 3%, particularly preferably 0.1 based on the total weight of (A) and (B). ⁇ 2.5%.
- the method of adding (C12) is not particularly limited, but it is preferable to disperse in (A) in advance in order to effectively disperse it in the resin composition.
- the ionic liquid (C13) is a compound other than (C12), has a melting point of room temperature or lower, and at least one of the cations or anions constituting (C13) is an organic ion, and the initial conductivity is 1.
- Examples of the cation constituting (C13) include a cation represented by Z + in the general formula (1), that is, a cation selected from the group consisting of amidinium, pyridinium, pyrazolium and guanidinium cations.
- the cation may be used alone or in combination of two or more.
- an amidinium cation is preferable from the viewpoint of antistatic properties, an imidazolium cation is more preferable, and a 1-ethyl-3-methylimidazolium cation is particularly preferable.
- examples of the organic acid or inorganic acid constituting the anion include the following.
- examples of organic acids include carboxylic acid, sulfuric acid ester, sulfonic acid, and phosphoric acid ester:
- examples of inorganic acids include super strong acids (for example, borofluoric acid, tetrafluoroboric acid, perchloric acid, hexafluorophosphoric acid, hexafluoro acid, Fluorinated antimonic acid and hexafluoroarsenic acid), phosphoric acid and boric acid.
- the organic acid and inorganic acid may be used alone or in combination of two or more.
- halogen for example, fluorine, chlorine and bromine
- alkyl (C1-12) benzenesulfonic acid for example, p-toluenesulfonic acid and dodecylbenzenesulfonic acid
- poly (n 1 to 25) Fluoroalkanesulfonic acid (for example, undecafluoropentanesulfonic acid) ion.
- Super strong acids include those derived from protonic acids and combinations of protonic acids and Lewis acids, and mixtures thereof.
- borofluoric acid trifluoromethanesulfonic acid, bis (trifluoromethanesulfonyl) imidic acid and bis (pentafluoroethylsulfonyl) imidic acid are preferable from the viewpoint of ease of synthesis.
- protonic acids used in combination with Lewis acids include hydrogen halides (eg, hydrogen fluoride, hydrogen chloride, hydrogen bromide and hydrogen iodide), perchloric acid, fluorosulfonic acid, methanesulfonic acid, and trifluoromethanesulfonic acid. , Pentafluoroethanesulfonic acid, nonafluorobutanesulfonic acid, undecafluoropentanesulfonic acid, tridecafluorohexanesulfonic acid and mixtures thereof. Of these, hydrogen fluoride is preferred from the viewpoint of the initial conductivity of (C13).
- hydrogen fluoride is preferred from the viewpoint of the initial conductivity of (C13).
- Lewis acid examples include boron trifluoride, phosphorus pentafluoride, antimony pentafluoride, arsenic pentafluoride, tantalum pentafluoride, and mixtures thereof. Of these, boron trifluoride and phosphorus pentafluoride are preferable from the viewpoint of the initial conductivity of (C13).
- the combination of the protonic acid and the Lewis acid is arbitrary, but as the super strong acid comprising these combinations, for example, tetrafluoroboric acid, hexafluorophosphoric acid, hexafluorotantalic acid, hexafluoroantimonic acid, tantalum hexafluoride
- tetrafluoroboric acid hexafluorophosphoric acid
- hexafluorotantalic acid hexafluoroantimonic acid
- tantalum hexafluoride examples include sulfonic acid, tetrafluoroboric acid, hexafluorophosphoric acid, chloroboron trifluoride, arsenic hexafluoride, and mixtures thereof.
- (C13) is preferably a super strong acid conjugate base (a super strong acid consisting of a proton acid and a super strong acid consisting of a combination of a proton acid and a Lewis acid), more preferably a proton. It is a conjugate base of a super strong acid consisting of a super strong acid and a proton acid consisting of an acid and boron trifluoride and / or phosphorus pentafluoride.
- ionic liquids (C13) from the viewpoint of antistatic properties, ionic liquids having an amidinium cation are preferable, and ionic liquids having a 1-ethyl-3-methylimidazolium cation are particularly preferable.
- ionic liquids having a 1-ethyl-3-methylimidazolium cation are particularly preferable.
- Preferred is 1-ethyl-3-methylimidazolium bis (trifluoromethanesulfonyl) imide.
- the amount of (C13) used is preferably 0.001 to 5%, more preferably 0.01 to 3%, particularly preferably 0.1 to 2.% based on the total weight of (A) and (B). 5%.
- the method of adding (C13) is also not particularly limited, but it is preferable to disperse in (A) in advance in order to effectively disperse it in the resin composition. Further, when (C13) is dispersed in (A), it is particularly preferable to add (C13) in advance during the production (polymerization) of (A).
- the timing for adding (C13) during the production of (A) is not particularly limited, and may be any before, during or after polymerization.
- a modified vinyl polymer having at least one functional group (polar group) selected from the group consisting of a carboxyl group, an epoxy group, an amino group, a hydroxyl group and a polyoxyalkylene group is used.
- polar group selected from the group consisting of a carboxyl group, an epoxy group, an amino group, a hydroxyl group and a polyoxyalkylene group.
- examples thereof include polymers described in JP-A-3-258850.
- a modified vinyl polymer having a sulfonic acid group described in JP-A-6-345927, a block polymer having a polyolefin portion and an aromatic vinyl polymer portion, and the like can be used.
- the amount of (C2) used is usually 20% or less based on the total weight of (A) and (B), preferably from 0.1 to 15%, more preferably from the viewpoint of the compatibilizing effect and the mechanical properties of the molded product. Is 1 to 10%, particularly preferably 1.5 to 8%.
- the method for adding (C2) is not particularly limited, but it is preferable to disperse it in the antistatic agent (A) in advance because it can be effectively dispersed or dissolved in the composition. When (C2) is dispersed or dissolved in (A), it is particularly preferable to add (C2) in advance during the production (polymerization) of (A).
- the timing for adding (C2) during the production of (A) is not particularly limited, and may be any before, during or after polymerization.
- the flame retardant (C3) includes a halogen-containing flame retardant (C31), a nitrogen-containing flame retardant (C32), a sulfur-containing flame retardant (C33), a silicon-containing flame retardant (34), and a phosphorus-containing flame retardant (C35). 1 type or 2 types or more of flame retardants chosen from these are included.
- halogen-containing flame retardant C31
- hexachloropentadiene hexabromodiphenyl
- octabromodiphenyl oxide etc .
- Examples of the nitrogen-containing flame retardant (C32) include a salt of urea compound, guanidine compound or triazine compound (melamine, guanamine, etc.) and cyanuric acid or isocyanuric acid;
- Examples of the sulfur-containing flame retardant (C33) include sulfate ester, organic sulfonic acid, sulfamic acid, organic sulfamic acid, and salts, esters and amides thereof;
- Examples of the silicon-containing flame retardant (C34) include polyorganosiloxane;
- Examples of the phosphorus-containing flame retardant (C35) include phosphorus-containing acids and esters thereof (C2 to 20), such as phosphoric acid, phosphate, halogen-containing phosphate, phosphorous acid, phosphonate, and ammonium phosphate.
- These flame retardants may be used in combination with a flame retardant aid [anti-drip agent (for example, polytetrafluoroethylene
- (C32) is preferred from the viewpoint of flame retardancy and the absence of environmental pollution such as dioxin generation during incineration.
- the total amount of (C3) used is usually 30% or less based on the total weight of (A) and (B), preferably from 0.1 to 20%, more preferably from the viewpoint of flame retardancy and mechanical properties of the molded product Is 1 to 10%.
- resin additives (C4) are one or more selected from the group consisting of pigments, dyes, nucleating agents, lubricants, plasticizers, mold release agents, antioxidants, ultraviolet absorbers and antibacterial agents. These additives may be mentioned.
- the total use amount of (C4) is usually 45% or less based on the total weight of (A) and (B), preferably 0.001 to 40% from the viewpoint of the effect of each additive and the mechanical properties of the molded product, More preferably, it is 0.01 to 35%, and particularly preferably 0.05 to 30%.
- the antistatic resin composition (X) of the present invention can be obtained by melt-mixing the antistatic agent (A), the thermoplastic resin (B) and, if necessary, (C).
- a method of melt mixing generally, a method in which pellet or powdery components are mixed with an appropriate mixer such as a Henschel mixer and then melt mixed with an extruder to be pelletized can be applied.
- each component during melt mixing for example, (1) A method of melt-mixing the antistatic agent (A), the thermoplastic resin (B), and if necessary (C) at once, (2) A part of the antistatic agent (A) and the thermoplastic resin (B) is previously melt-mixed to prepare a high-concentration resin composition (masterbatch resin composition) of the antistatic agent, and then the remaining ( B) and a method of melt-mixing (C) if necessary.
- the concentration of the antistatic agent of the present invention in the masterbatch resin composition in the method (2) is preferably 40 to 80% by weight, more preferably 50 to 70% by weight.
- the method (2) is a method called a master batch method, which is a preferable method from the viewpoint of efficient dispersion of the antistatic agent (A) into (B).
- the molded product of the present invention is obtained by molding the antistatic resin composition (X).
- the molding method include injection molding, compression molding, calendar molding, slush molding, rotational molding, extrusion molding, blow molding, foam molding, film molding (casting method, tenter method, inflation method, etc.). Depending on the method, it can be formed by any method.
- the molded article has excellent permanent antistatic properties, mechanical properties, and heat resistance, as well as good paintability and printability.
- Examples of the method for coating the molded product include, but are not limited to, an air spray method, an airless spray method, an electrostatic spray method, a dipping method, a roller method, and a brush coating method.
- Examples of the paint include various paints such as polyester melamine, epoxy melamine, acrylic melamine, and acrylic urethane resin paint.
- the coating film thickness (film thickness after drying) can be appropriately selected according to the purpose, but is preferably 10 to 50 ⁇ m, more preferably 15 to 40 ⁇ m from the viewpoint of physical properties of the coating film.
- Examples of the method for printing on the molded product include various printing methods such as gravure printing, flexographic printing, screen printing, and offset printing. Examples of the printing ink include those usually used for plastic printing.
- the present invention will be specifically described with reference to examples, but the present invention is not limited to these examples.
- the part in an Example represents a weight part and% represents weight%.
- a2-1 cationic polymer having an average of 12 quaternary ammonium groups in one molecule.
- the hydroxyl value of (a2-1) was 16.5, the acid value was 0.5, Mn was 6,800, and the volume resistivity value was 1 ⁇ 10 5 ⁇ ⁇ cm.
- Production Example 9 [Production of antistatic agent (A-2)]
- an antistatic agent (A-2) comprising a block polymer was obtained in the same manner as in Production Example 8, except that the polymerization time was changed from 4 hours to 3 hours.
- the melt viscosity of (A-2) was 40 Pa ⁇ s, SP was 8,8, and Mn was 22,000. (Average repeat number Nn is 3.1)
- Production Example 10 [Production of Antistatic Agent (A-3)] An antistatic agent (A-3) comprising a block polymer was obtained in the same manner as in Production Example 8 except that the polymerization time was changed from 4 hours to 3.5 hours in Production Example 8.
- the melt viscosity of (A-3) was 110 Pa ⁇ s, SP was 8.8, and Mn was 26,000. (Average repeat number Nn is 3.6)
- Production Example 11 [Production of Antistatic Agent (A-4)]
- an antistatic agent (A-4) comprising a block polymer was obtained in the same manner as in Production Example 8, except that the polymerization time was changed from 4 hours to 10 hours.
- the melt viscosity of (A-4) was 280 Pa ⁇ s, SP was 8.8, and Mn was 41,000. (Average repeat number Nn is 5.7)
- Production Example 12 [Production of Antistatic Agent (A-5)]
- Production Example 8 instead of 60.9 parts of secondary modified polyolefin (b1-2) and 39.1 parts of PEG (a1-1), modified polyolefin (b1-3) 59.0 having hydroxyl groups at both ends of the polymer Part, (a1-1) 41.0 parts and dodecanedioic acid 6 parts were used in the same manner as in Production Example 8 to obtain an antistatic agent (A-5) comprising a block polymer.
- the melt viscosity of (A-5) was 130 Pa ⁇ s
- SP was 8.8, and Mn was 25,000.
- Amage repeat number Nn is 3.6
- Production Example 13 [Production of Antistatic Agent (A-6)] In Production Example 8, instead of 60.9 parts of secondary modified polyolefin (b1-2) and 39.1 parts of PEG (a1-1), modified polyolefin (b1-4) having amino groups at both ends of the polymer 59.
- An antistatic agent (A-6) comprising a block polymer was obtained in the same manner as in Production Example 8, except that 5 parts, 40.5 parts of PEG (a1-1), and 6 parts of dodecanedioic acid were used.
- the melt viscosity of (A-6) was 150 Pa ⁇ s, SP was 8.8, and Mn was 28,000. (Average repeat number Nn is 4.0)
- Production Example 14 [Production of Antistatic Agent (A-7)] In Production Example 8, instead of 60.9 parts of secondary modified polyolefin (b1-2) and 39.1 parts of PEG (a1-1), 40.7 parts of (b1-2), cationic polymer (a2-1) ) An antistatic agent (A-7) comprising a block polymer was obtained in the same manner as in Production Example 8 except that 59.3 parts were used.
- the melt viscosity of (A-7) was 210 Pa ⁇ s, SP was 8.7, and Mn was 29,000. (Average repeat number Nn is 2.6)
- Production Example 15 [Production of antistatic agent (A-8)] In Production Example 8, instead of 60.9 parts of secondary modified polyolefin (b1-2) and 39.1 parts of PEG (a1-1), 55.2 parts of (b1-2), anionic polymer (a3-1) ) An antistatic agent (A-8) comprising a block polymer was obtained in the same manner as in Production Example 8, except that 44.8 parts were used.
- the melt viscosity of (A-8) was 190 Pa ⁇ s, SP was 9.4, and Mn was 28,000. (Average repeat number Nn is 3.6)
- Production Example 16 [Production of Antistatic Agent (A-9)] In Production Example 8, 20.3 parts of polyamide (b2-1) having carboxyl groups at both ends instead of 60.9 parts of secondary modified polyolefin (b1-2) and 39.1 parts of PEG (a1-1) In the same manner as in Production Example 8, except that 79.7 parts of EO adduct of bisphenol A (Mn 4,000, volume resistivity 2 ⁇ 10 7 ⁇ ⁇ cm) (a1-2) was used, An antistatic agent (A-9) was obtained. The melt viscosity of (A-9) was 250 Pa ⁇ s, SP was 11.0, and Mn was 23,000. (Average repeat number Nn is 4.6)
- A-10) an antistatic agent comprising a block polymer.
- the melt viscosity of (A-10) was 140 Pa ⁇ s, SP was 9.2, and Mn was 25,000. (Average repeat number Nn is 3.6)
- Production Example 18 [Production of antistatic agent (A-11)] In Production Example 17, instead of 47.3 parts of (a1-3) and 52.7 parts of (b1-3), 38.9 parts of (a1-3), a modified polyolefin having amino groups at both ends of the polymer (b1 -4) An antistatic agent (A-11) comprising a block polymer was obtained in the same manner as in Production Example 17 except that 61.1 parts were used.
- the melt viscosity of (A-11) was 150 Pa ⁇ s, SP was 9.3, and Mn was 24,000. (Average repeat number Nn is 3.4)
- Examples 1 to 18 and Comparative Examples 1 to 11 In accordance with the formulation shown in Tables 1 and 2, after blending each component for 3 minutes with a Henschel mixer, the mixture was melt-kneaded in a twin screw extruder with a vent at 100 rpm, a residence time of 5 minutes, and a melting temperature of 220 ° C. Examples 1 to 18 and Comparative Examples 1 to 11) were obtained.
- Example 19 After blending 60 parts of (A-1), 40 parts of (B-1), 3 parts of (C1-1) and 2 parts of (C4-1) with a Henschel mixer for 3 minutes, using a twin screw extruder with a vent, The master batch resin composition (M-1) was obtained by melting and kneading at 100 rpm and a residence time of 5 minutes at a melting temperature of 220 ° C. Thereafter, 95 parts of (B-1) was blended with 5.25 parts of (M-1) for 3 minutes with a Henschel mixer, and then, at a rotating twin screw extruder with a vent, 100 rpm, a residence time of 5 minutes, a melting temperature of 220 ° C. And kneaded to obtain a resin composition.
- B-1 HIPS resin [trade name “HIPS 433”, PS Japan Co., Ltd.] melt viscosity 160 Pa ⁇ s
- SP10.6 B-2: ABS resin [trade name “Cebian 680SF”, Daicel Polymer Co., Ltd.] melt viscosity 400 Pa ⁇ s
- SP11.7 B-3 PC / ABS resin [trade name “Psycholoy C6600”, SABIC Innovative Plastics Japan GK] Melt viscosity 550 Pa ⁇ s, SP11.4 B-4: Modified PPE resin [trade name “Noryl V-095”, SABIC Innovative Plastics Japan GK] Melt viscosity 580 Pa ⁇ s, SP11.2 B-5: PP resin [trade name “PM771M”, manufactured by Sun Allomer Co., Ltd.] Melt viscosity 170 Pa ⁇ s, SP 8.0 C1-1: 1-ethyl-3-methylimidazolium bis (trifluorome
- C4-1 Antioxidant [trade name “Irganox 1010”, Tetrakis [Methylene-3- (3 ', 5'-di-t-butyl-4', manufactured by Ciba Specialty Chemicals Co., Ltd. -Hydroxyphenyl) propionate] methane
- the resin composition of the present invention gives a molded product having excellent permanent antistatic properties even when the content of the antistatic agent in the composition is smaller than that of the conventional one, and further contains It can be seen that the appearance and mechanical properties are excellent over a wide range of quantities.
- the antistatic resin composition of the present invention can impart excellent antistatic properties to the molded product without impairing the mechanical properties and good appearance of the thermoplastic resin molded product
- various molding methods [injection molding, compression Housing products molded by molding, calendar molding, slush molding, rotational molding, extrusion molding, blow molding, foam molding and film molding (for example, casting method, tenter method, inflation method, etc.) [home appliances / OA equipment, game equipment and Office equipment, etc.], plastic container materials [tray used in clean rooms (IC trays, etc.), other containers, etc.], various cushioning materials, covering materials (wrapping film, protective film, etc.), flooring sheets, artificial Widely used as materials for turf, mats, tape base materials (for semiconductor manufacturing processes, etc.), and various molded products (automobile parts, etc.) Come, it is extremely useful.
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Abstract
Description
(1)該組成物中の帯電防止剤の含有量が従来より少量の場合でも優れた永久帯電防止性を有する成形品を与える。
(2)該組成物を成形してなる成形品は外観および機械特性に優れる。
本発明における帯電防止剤(A)は、後述する熱可塑性樹脂(B)と(A)の220℃における溶融粘度比が0.5~5、好ましくは0.7~3.5、さらに好ましくは0.8~2.5、とくに好ましくは0.9~1.5、かつ(B)と(A)の溶解度パラメーター(以下SPと略記)の差の絶対値が1.0~3.0、好ましくは1.1~2.5、さらに好ましくは1.2~2.0である帯電防止剤である。
該溶融粘度比もしくは溶解度パラメーターの差の絶対値のいずれか、または両方ともが上記範囲を外れる場合は、後述する成形品の外観、機械特性もしくは帯電防止性のいずれか、またはそれらのいずれもが悪くなる。
(B)と(A)が、上記溶融粘度比およびSPの差の絶対値の条件を満たすと前記本発明の効果が奏される点は、そのメカニズムについては明確ではないが、[1]SPの差が上記範囲にある場合は、帯電防止剤の樹脂中への溶解が抑制され、さらに帯電防止剤が成形品表層部へ移行しやすく該表層部における帯電防止剤濃度が高まること、および[2]該帯電防止剤濃度が高まっても、溶融粘度比が上記範囲にある場合は、帯電防止剤の樹脂中での分散性が良好で成形品の外観、機械特性に悪影響することがないことに起因するものと推定される。
溶融粘度比=ρ(B)/ρ(A)
式中、ρ(A)、ρ(B)はそれぞれ220℃における(A)と(B)の溶融粘度(単位はPa・s/せん断速度600秒-1)を示す。
SP=(△E/V)1/2
具体的なSPの求め方は例えばFedorsの方法が知られており、該方法は、該方法で得られたSPとともに、「A Method for Estimating both the Solubility Parameters and Molar Volumes of Liquids,POLYMER ENGINEERING AND SCIENCE,FEBRUARY,1974,vol.14,Issue2,p.147-154」に記載されており、本発明ではこれらを用いることができる。
前記ブロックポリマーを構成する親水性ポリマー(a)としては、ポリエーテル(a1)、カチオン性ポリマー(a2)およびアニオン性ポリマー(a3)からなる群から選ばれる少なくとも1種が挙げられる。
カチオン性ポリマー(a2)としては、非イオン性分子鎖(c1)で隔てられた2~80個、好ましくは3~60個のカチオン性基(c2)を分子内に有するカチオン性ポリマーが挙げられる。
アニオン性ポリマー(a3)としては、スルホ基を有するジカルボン酸(e1)と、ジオール(a0)またはポリエーテル(a1)とを必須構成単位とし、かつ分子内に2~80個、好ましくは3~60個のスルホ基を有するアニオン性ポリマーが挙げられる。
(a1)のうち、ポリエーテルジオール(a11)は、ジオール(a0)にアルキレンオキサイド(以下AOと略記)を付加反応させることにより得られる構造のものであり、一般式:H-(OA1)m-O-E1-O-(A1O)m’-Hで示されるものが挙げられる。
式中、E1はジオール(a0)から水酸基を除いた残基、A1は炭素数(以下Cと略記)2~4のアルキレン基、mおよびm’はジオール(a0)の水酸基1個当たりのAO付加数を表す。m個の(OA1)とm’個の(A1O)とは、同一でも異なっていてもよく、また、これらが2種以上のオキシアルキレン基で構成される場合の結合形式はブロックもしくはランダムまたはこれらの組合せのいずれでもよい。mおよびm’は、通常1~300、好ましくは2~250、さらに好ましくは10~100の整数である。また、mとm’とは、同一でも異なっていてもよい。
脂肪族2価アルコールとしては、例えば、アルキレングリコール[エチレングリコール、プロピレングリゴール(以下それぞれEG,PGと略記)]、1,4-ブタンジオール、1,6-ヘキサンジオール、ネオペンチルグリコール(以下それぞれ1,4-BD、1,6-HD、NPGと略記)、1,12-ドデカンジオール;
脂環含有2価アルコールとしては、例えば、ジクロヘキサンジメタノール;
芳香環含有2価アルコールとしては、例えば、キシリレンジオールが挙げられる。
2価フェノールとしては、例えば、単環2価フェノール(ハイドロキノン、カテコール、レゾルシン、ウルシオール等)、ビスフェノール(ビスフェノールA、-Fおよび-S、4,4’-ジヒドロキシジフェニル-2,2-ブタン、ジヒドロキシビフェニル等)および縮合多環2価フェノール(ジヒドロキシナフタレン、ビナフトール等)が挙げられる。
これらのうち帯電防止性の観点から好ましいのは、脂肪族2価アルコールおよびビスフェノール、さらに好ましいのはEGおよびビスフェノールAである。
A0としては、C2~4のAO[エチレンオキサイド、プロピレンオキサイド、1,2-、1,4-、2,3-および1,3-ブチレンオキサイド(以下それぞれEO、PO、BOと略記)、およびこれらの2種以上の併用系が用いられるが、必要により他のAOまたは置換AO(以下、これらも含めてAOと総称する。)、例えばC5~12のα-オレフィン、スチレンオキサイド、エピハロヒドリン(エピクロルヒドリン等)を少しの割合(例えば、全AOの重量に基づいて30%以下)で併用することもできる。
2種以上のAOを併用するときの結合形式はランダムおよび/またはブロックのいずれでもよい。AOとして好ましいのは、EO単独およびEOと他のAOとの併用(ランダムおよび/またはブロック付加)である。AOの付加数は、ジオール(a0)の水酸基1個当り、通常1~300、好ましくは2~250、さらに好ましくは10~100の整数である。
ポリオキシアルキレン鎖中のオキシエチレン単位の含量は、通常5~100%、好ましくは10~100%、さらに好ましくは50~100%、特に好ましくは60~100%である。
(a12)は、(a11)の水酸基を公知の方法によりアミノ基に変えることにより得ることができ、例えば、(a11)の水酸基をシアノアルキル化して得られる末端を還元してアミノ基としたものが使用できる。
例えば(a11)とアクリロニトリルとを反応させ、得られるシアノエチル化物を水素添加することにより製造することができる。
アミノカルボン酸変性物は、(a11)または(a12)と、アミノカルボン酸またはラクタムとを反応させることにより得ることができる。
イソシアネート変性物は、(a11)または(a12)と、後述のようなポリイソシアネートとを反応させるか、(a12)とホスゲンとを反応させることにより得ることができる。
エポキシ変性物は、(a11)または(a12)と、ジエポキシド(ジグリシジルエーテル、ジグリシジルエステル、脂環式ジエポキシド等のエポキシ樹脂:エポキシ当量85~600)とを反応させるか、(a11)とエピハロヒドリン(エピクロルヒドリン等)とを反応させることにより得ることができる。
装置 :高温GPC
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
カラム温度 :135℃
カチオン性基(c2)としては、4級アンモニウム塩またはホスホニウム塩を有する基が挙げられる。(c2)の対アニオンとしては、超強酸アニオンおよびその他のアニオンが挙げられる。
超強酸アニオンとしては、プロトン酸(d1)とルイス酸(d2)との組み合わせから誘導される超強酸(四フッ化ホウ酸、六フッ化リン酸等)のアニオン、トリフルオロメタンスルホン酸等の超強酸のアニオンが挙げられる。
その他のアニオンとしては、例えばハロゲンイオン(F-、Cl-、Br-、I-等)、OH-、PO4 -、CH3OSO4 -、C2H5OSO4 -、ClO4 -等が挙げられる。
超強酸を誘導する上記プロトン酸(d1)の具体例としては、フッ化水素、塩化水素、臭化水素、ヨウ化水素等が挙げられる。
また、ルイス酸(d2)の具体例としては、三フッ化ホウ素、五フッ化リン、五フッ化アンチモン、五フッ化ヒ素、五フッ化タンタル等が挙げられる。
これらの(c1)のうち好ましいのは、2価の炭化水素基およびエーテル結合を有する2価の炭化水素基である。
ジカルボン酸(e1)としては、スルホ基を有する芳香族ジカルボン酸、スルホ基を有する脂肪族ジカルボン酸およびこれらのスルホ基のみが塩となったものが使用できる。
スルホ基を有する脂肪族ジカルボン酸としては、例えばスルホコハク酸およびそのエステル形成性誘導体[低級アルキル(C1~4)エステル(メチルエステル、エチルエステル等)、酸無水物等]が挙げられる。
これらのスルホ基のみが塩となったものとしては、例えばアルカリ金属(リチウム、ナトリウム、カリウム等)の塩、アルカリ土類金属(マグネシウム、カルシウム等)の塩、アンモニウム塩、ヒドロキシアルキル(C2~4)基を有するモノ-、ジ-およびトリ-アミン(モノ-、ジ-およびトリ-エチルアミン、モノ-、ジ-およびトリ-エタノールアミン、ジエチルエタノールアミン等の有機アミン塩)等のアミン塩、これらアミンの4級アンモニウム塩およびこれらの2種以上の併用が挙げられる。
これらのうち好ましいのは、スルホ基を有する芳香族ジカルボン酸、さらに好ましいのは5-スルホイソフタル酸塩、とくに好ましいのは5-スルホイソフタル酸ナトリウム塩および5-スルホイソフタル酸カリウム塩である。
(a3)の製法としては、通常のポリエステルの製法がそのまま適用できる。ポリエステル化反応は、通常減圧下150~240℃の温度範囲で行われ、反応時間は0.5~20時間である。また、該エステル化反応においては、必要により通常のエステル化反応に用いられる触媒を用いてもよい。
エステル化触媒としては、例えばアンチモン触媒(三酸化アンチモン等)、錫触媒(モノブチル錫オキサイド、ジブチル錫オキサイド等)、チタン触媒(テトラブチルチタネート等)、ジルコニウム触媒(テトラブチルジルコネート等)、酢酸金属塩触媒(酢酸亜鉛等)等が挙げられる。
本発明における疎水性ポリマー(b)には、ポリオレフィン(b1)、ポリアミド(b2)、ポリアミドイミド(b3)およびポリエステル(b4)からなる群から選ばれる少なくとも1種の疎水性ポリマーが含まれる。ここにおいて疎水性ポリマーとは、1×1014~1×1017Ωの表面固有抵抗値を有するポリマーのことを意味する。
さらに、カルボニル基をポリマーの片末端に有するポリオレフィン(b15)、水酸基をポリマーの片末端に有するポリオレフィン(b16)、アミノ基をポリマーの片末端に有するポリオレフィン(b17)、およびイソシアネート基をポリマーの片末端に有するポリオレフィン(b18)等が使用できる。
これらのうち、変性のし易さからカルボニル基を有するポリオレフィン(b11)および(b15)が好ましい。
(b12)としては、(b10)の両末端に水酸基を導入したものが用いられる。
(b13)としては、(b10)の両末端にアミノ基を導入したものが用いられる。
(b14)としては、(b10)の両末端にイソシアネート基を導入したものが用いられる。
(b16)としては、(b100)の片末端に水酸基を導入したものが用いられる。
(b17)としては、(b100)の片末端にアミノ基を導入したものが用いられる。
(b18)としては、(b100)の片末端にイソシアネート基を導入したものが用いられる。
カルボニル基、水酸基、アミノ基またはイソシアネート基を導入する変性のし易さおよび入手のし易さの観点から好ましいのは、減成されたポリオレフィン、特に熱減成されたポリオレフィンである。
熱減成されたポリオレフィンは特に限定されないが、高分子量ポリオレフィンを不活性ガス中で加熱する(通常300~450℃で0.5~10時間)ことにより熱減成されたもの(例えば特開平3-62804号公報記載のもの)が挙げられる。
該熱減成法に用いられる高分子量ポリオレフィンとしては、C2~30(好ましくは2~12、さらに好ましくは2~10)のオレフィンの1種または2種以上の混合物の(共)重合体等が使用できる。C2~30のオレフィンとしては、後述のポリオレフィン(重合法)製造に用いられるものと同じものが使用でき、これらのうち好ましいのはエチレン、プロピレン、C4~12のα-オレフィンおよびこれらの2種以上の混合物、さらに好ましいのはエチレン、プロピレン、C4~10のα-オレフィンおよびこれらの2種以上の混合物、特に好ましいのはエチレン、プロピレン、およびこれらの2種以上の混合物である。
α-オレフィンとしては、例えば、1-ブテン、4-メチル-1-ペンテン、1-ペンテン、1-オクテン、1-デセンおよび1-ドデセン等が挙げられる。
ジエンとしては、例えば、ブタジエン、イソプレン、シクロペンタジエンおよび1,11-ドデカジエン等が挙げられる。
これらのうち、エチレン、プロピレン、C4~12のα-オレフィン、ブタジエンおよびイソプレンが好ましく、さらに好ましいのはエチレン、プロピレン、C4~1Oのα-オレフィンおよびブタジエン、特に好ましいのはエチレン、プロピレンおよびブタジエンである。
(b10)中の二重結合の量は、炭素数1,000当たり、1~40個が好ましく、更に好ましくは2~30個、特に好ましくは4~20個である。二重結合の量がこの範囲であると帯電防止性がさらに良好になる。
1分子当たりの二重結合の平均数は、1.1~5.0が好ましく、さらに好ましくは1.3~3.0、特に好ましくは1.5~2.5、最も好ましくは1.8~2.2である。二重結合の平均数がこの範囲であると繰り返し構造をさらにとりやすくなり、帯電防止性がさらに良好になる。
熱減成法による低分子量ポリオレフィンでは、Mnが800~6,000の範囲で、1分子当たりの平均末端二重結合量が1.5~2個の低分子量ポリオレフィンが容易に得られる〔村田勝英、牧野忠彦、日本化学会誌、192頁(1975)〕。
(b100)は、炭素数1,000当たり0.3~20個、好ましくは0.5~15個、さらに好ましくは0.7~10個の二重結合を有するものである。変性のしやすさの点で、熱減成法による低分子量ポリオレフィン(特にMnが2,000~20,000のポリエチレンおよび/またはポリプロピレン)が好ましい。
熱減成法による低分子量ポリオレフィンでは、Mnが5,000~30,000の範囲で、1分子当たりの平均末端二重結合量が1~1.5個のものが得られる。
変性に用いられるα,β―不飽和カルボン酸(無水物)としては、モノカルボン酸、ジカルボン酸、これらのアルキル(C1~4)エステルおよびこれらの無水物が使用でき、例えば(メタ)アクリル酸(アクリル酸またはメタアクリル酸を意味する。以下同じ。)、(メタ)アクリル酸メチル、(メタ)アクリル酸ブチル、マレイン酸(無水物)、マレイン酸ジメチル、フマル酸、イタコン酸(無水物)、イタコン酸ジエチルおよびシトラコン酸(無水物)等が挙げられる。
これらのうち好ましいのは、ジカルボン酸、これらのアルキルエステルおよびこれらの無水物、さらに好ましいのはマレイン酸(無水物)およびフマル酸、特に好ましいのはマレイン酸(無水物)である。
α,β-不飽和カルボン酸(無水物)による変性は、種々の方法で行うことができ、例えば、(b10)の末端二重結合に、溶液法または溶融法のいずれかの方法で、α,β-不飽和カルボン酸(無水物)を熱的に付加(エン反応)させることにより行うことができる。(b10)にα,β-不飽和カルボン酸(無水物)を反応させる温度は、通常170~230℃である。
二次変性に用いるラクタムとしては、C6~12(好ましくは6~8、さらに好ましくは6)のラクタム等が使用でき、例えば、カプロラクタム、エナントラクタム、ラウロラクタムおよびウンデカノラクタム等が挙げられる。
また、アミノカルボン酸としては、C2~12(好ましくは4~12、さらに好ましくは6~12)のアミノカルボン酸等が使用でき、例えば、アミノ酸(グリシン、アラニン、バリン、ロイシン、イソロイシンおよびフェニルアラニン等)、ω-アミノカプロン酸、ω-アミノエナント酸、ω-アミノカプリル酸、ω-アミノペルゴン酸、ω-アミノカプリン酸、11-アミノウンデカン酸および12-アミノドデカン酸等が挙げられる。
これらのうち、カプロラクタム、ラウロラクタム、グリシン、ロイシン、ω-アミノカプリル酸、11-アミノウンデカン酸および12-アミノドデカン酸が好ましく、さらに好ましくはカプロラクタム、ラウロラクタム、ω-アミノカプリル酸、11-アミノウンデカン酸および12-アミノドデカン酸、特に好ましくはカプロラクタムおよび12-アミノドデカン酸である。
二次変性に用いるラクタムまたはアミノカルボン酸の量は、α、β不飽和カルボン酸(無水物)のカルボキシル基1個当たり、好ましくは0.1~50個、さらに好ましくは0.3~20個、特に好ましくは0.5~10個、最も好ましくは1~2個である。この量がこの範囲であると繰り返し構造をさらにとりやすくなり、帯電防止性がさらに良好になる。
酸化法によるカルボニル基の導入は、公知の方法で行うことができ、例えば、米国特許第3,692,877号明細書記載の方法で行うことができる。ヒドロホルミル化によるカルボニル基の導入は、公知の方法で行うことができ、例えば、Macromolecu1es、Vol.31、5943頁記載の方法で行うことができる。
(b11-4)は、(b11-3)をラクタムまたはアミノカルボン酸で二次変性することにより得ることができる。
ラクタムおよびアミノカルボン酸およびこれらの好ましい範囲は、(b11-2)の製造で使用できるものと同じである。ラクタムおよびアミノカルボン酸の使用量も同じである。
また、(b11)の酸価は、(a)との反応性の観点から、好ましくは4~280(単位はmgKOH/g。以下においては数値のみを記載する。)、さらに好ましくは4~100、特に好ましくは5~50である。
変性に使用できるヒドロキシルアミンとしては、C2~10のヒドロキシルアミン、例えば、2-アミノエタノール、3-アミノプロパノール、1-アミノ-2-プロパノール、4-アミノブタノール、5-アミノペンタノール、6-アミノヘキサノールおよび3-アミノメチル-3,5,5-トリメチルシクロヘキサノールが挙げられる。
これらのうち、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、5-アミノペンタノールおよび6-アミノヘキサノール、さらに好ましいのは2-アミノエタノールおよび4-アミノブタノール、特に好ましいのは2-アミノエタノールである。
(b12)のMnは、耐熱性および前記親水性ポリマー(a)との反応性の観点から、好ましくは800~25,000、さらに好ましくは1,000~20,000、特に好ましくは2,500~10,000である。
また、(b12)の水酸基価は、(a)との反応性の観点から、好ましくは4~280(mgKOH/g。以下においては数値のみを記載する。)、さらに好ましくは4~100、特に好ましくは5~50である。
この変性に用いるジアミン(Q1)としては、C2~12のジアミン等が使用でき、例えば、エチレンジアミン、ヘキサメチレンジアミン、ヘプタメチレンジアミン、オクタメチレンジアミンおよびデカメチレンジアミン等が挙げられる。
これらのうち、エチレンジアミン、ヘキサメチレンジアミン、ヘプタメチレンジアミンおよびオクタメチレンジアミンが好ましく、さらに好ましいのはエチレンジアミンおよびヘキサメチレンジアミン、特に好ましいのはエチレンジアミンである。
なお、実際の製造に当たっては、ポリアミド(イミド)化を防止するため、α、β不飽和カルボン酸(無水物)の残基1個当たり、2~1,000個、さらに好ましくは5~800個、特に好ましくは10~500個のジアミンを使用し、末反応の過剰ジアミンを減圧下(通常120℃~230℃)で除去することが好ましい。
また、(b13)のアミン価は、(a)との反応性の観点から、4~280(単位はmgKOH/g。以下、数値のみを記載する。)が好ましく、さらに好ましくは4~100、特に好ましくは5~50である。
これらのうち、好ましいのはTDI、MDIおよびHDI、さらに好ましいのはHDIである。
イソシアネート変性ポリオレフィンを形成する際の、PIと(b12)との当量比(NCO/OH比)は、通常1.8/1~3/1、好ましくは2/1である。
反応を促進するために必要によりポリウレタンに通常用いられる触媒を使用してもよい。このような触媒としては、金属触媒、例えば錫触媒[ジブチルチンジラウレート、スタナスオクトエート等]、鉛触媒[2-エチルヘキサン酸鉛、オクテン酸鉛等]、その他の金属触媒[ナフテン酸金属塩(ナフテン酸コバルト等)、フェニル水銀プロピオン酸塩等];アミン触媒、例えばトリエチレンジアミン、ジアザビシクロアルケン類〔1,8-ジアザビシクロ[5,4,0]ウンデセン-7[DBU(サンアプロ(株)製、登録商標)]等〕、ジアルキルアミノアルキルアミン[ジメチルアミノエチルアミン、ジメチルアミノオクチルアミン等]、複素環式アミノアルキルアミン[2-(1-アジリジニル)エチルアミン、4-(1-ピペリジニル)-2-ヘキシルアミン等]の炭酸塩および有機酸塩(ギ酸塩など)、N-メチルおよび-エチルモルホリン、トリエチルアミン、ジエチル-およびジメチルエタノールアミン;およびこれらの2種以上の併用系が挙げられる。
これらの触媒の使用量はPIと(b12)の合計重量に基づいて、通常3%以下、好ましくは0.001~2%である。
アミド形成モノマーとしては、ラクタム(b21)、アミノカルボン酸(b22)、およびジアミン(b23)/ジカルボン酸(b24)が挙げられる。
ラクタム(b21)としてはC6~12、例えばカプロラクタム、エナントラクタム、ラウロラクタムおよびウンデカノラクタムが挙げられる。
(b21)の開環重合体としては、例えばナイロン4、-5、-6、-8および-12が挙げられる。
(b22)の自己重縮合体としては、例えばω-アミノエナント酸の重縮合によるナイロン7、ω-アミノウンデカン酸の重縮合によるナイロン11および12-アミノドデカン酸の重縮合によるナイロン12が挙げられる。
脂肪族ジアミンとしては、C2~40、例えばエチレンジアミン、プロピレンジアミン、ヘキサメチレンジアミン、デカメチレンジアミン、1,12ドデカンジアミン、1,18-オクタデカンジアミンおよび1,2-エイコサンジアミンが挙げられる。
脂環式ジアミンとしては、C5~40、例えば1,3-および1,4-シクロヘキサンジアミン、イソホロンジアミン、4,4’-ジアミノシクロヘキシルメタンおよび2,2-ビス(4-アミノシクロヘキシル)プロパンが挙げられる。
芳香脂肪族ジアミンとしては、C7~20、例えば(パラまたはメタ)キシリレンジアミン、ビス(アミノエチル)ベンゼン、ビス(アミノプロピル)ベンゼンおよびビス(アミノブチル)ベンゼンが挙げられる。
芳香族ジアミンとしては、C6~40、例えばp-フェニレンジアミン、2,4-および2,6トルイレンジアミンおよび2,2-ビス(4,4’-ジアミノフェニル)プロパンが挙げられる。
芳香環含有ジカルボン酸としては、C8~40(帯電防止性の観点から好ましくは8~16、さらに好ましくは8~14)、例えばオルト-、イソ-およびテレフタル酸、2,6-および-2,7-ナフタレンジカルボン酸、ジフェニル-4,4’-ジカルボン酸、ジフェノキシエタンジカルボン酸、トリレンジカルボン酸、キシリレンジカルボン酸および5-スルホイソフタル酸アルカリ金属(上記に同じ)塩が挙げられる。
脂環式ジカルボン酸としては、C5~40(帯電防止性の観点から好ましくは6~18、さらに好ましくは8~14)、例えばシクロプロパンジカルボン酸、1,4-シクロヘキサンジカルボン酸、シクロヘキセンジカルボン酸、ジシクロヘキシル-4,4’-ジカルボン酸およびショウノウ酸が挙げられる。これらのうち帯電防止性の観点から好ましいのは脂肪族ジカルボン酸および芳香環含有ジカルボン酸、さらに好ましいのはアジピン酸、セバシン酸、テレフタル酸、イソフタル酸および3-スルホイソフタル酸ナトリウムである。
ジカルボン酸誘導体のうち酸無水物としては、上記ジカルボン酸の無水物、例えば無水マレイン酸、無水イタコン酸および無水フタル酸;低級(C1~4)アルキルエステルとしては上記ジカルボン酸の低級アルキルエステル、例えばアジピン酸ジメチルおよびオルト-、イソ-およびテレフタル酸ジメチルか挙げられる。
また、共重合ナイロンとしては、ナイロン6/66(アジピン酸/ヘキサメチレンジアミンのナイロン塩とカプロラクタムの共重合体)およびナイロン6/12(12-アミノドデカン酸とカプロラクタムの共重合体)が挙げられる。
該C2~40のジアミンとしては前記(b23)として例示したものが挙げられ、これらのうち他のアミド形成性モノマーとの反応性の観点から好ましいのは脂肪族ジアミン、さらに好ましいのはヘキサメチレンジアミンおよびデカメチレンジアミンである。
該C2~40のジカルボン酸としては、前記(b24)として例示したものが挙げられ、これらのうち他のアミド形成性モノマーとの反応性の観点から好ましいのは脂肪族ジカルボン酸および芳香族含有ジカルボン酸、さらに好ましいのはアジピン酸、セバシン酸、テレフタル酸、イソフタル酸および3-スルホイソフタル酸ナトリウムである。
上記分子量調整剤の使用量は、アミドイミド形成性モノマーと分子量調整剤合計の重量に基づいて、下限は後述する成形品の帯電防止性の観点から、上限は成形品の耐熱性の観点から、好ましくは2~80%、さらに好ましくは4~75%である。
エステル形成性モノマーとしては、ラクトン、ヒドロキシカルボン酸、前記ジオール(a0)と前記ジカルボン酸(b24)との組合せ、およびこれらの混合物が挙げられる。
本発明における帯電防止剤(A)のうちのブロックポリマーは、前記親水性ポリマー(a)のブロックと、疎水性ポリマー(b)のブロックが、エステル結合、アミド結合、エーテル結合、ウレタン結合、ウレア結合およびイミド結合からなる群から選ばれる少なくとも1種の結合を介して交互に結合した構造を有する。
該ブロックポリマーの重量に基づく(a)のブロックの割合は、帯電防止性および後述する帯電防止性樹脂組成物の成形性の観点から好ましくは20~80%、さらに好ましくは30~70%である。
また、ウレタン結合は、例えばポリエーテルジオール(a11)とイソシアネート基を両末端に有するポリオレフィン(b14)との反応で形成され、ウレア結合は、例えばポリエーテルジアミン(a12)とイソシアネート基を両末端に有するポリオレフィン(b14)との反応で形成される。
熱可塑性樹脂(B)としては、ポリフェニレンエーテル(PPE)樹脂(B1);ビニル樹脂〔ポリオレフィン樹脂(B2)[例えばポリプロピレン(PP)、ポリエチレン(PE)、エチレン-酢酸ビニル共重合樹脂(EVA)、エチレン-エチルアクリレート共重合樹脂]、ポリ(メタ)アクリル樹脂(B3)[例えばポリメタクリル酸メチル]、ポリスチレン樹脂(B4)[ビニル基含有芳香族炭化水素単独またはビニル基含有芳香族炭化水素と、(メタ)アクリル酸エステル、(メタ)アクリロニトリルおよびブタジエンからなる群から選ばれる少なくとも1種を構成単位とする共重合体、例えばポリスチレン、耐衝撃性ポリスチレン(HIPS)、スチレン/アクリロニトリル共重合体(AN樹脂)、アクリロニトリル/ブタジエン/スチレン共重合体(ABS樹脂)、メタクリル酸メチル/ブタジエン/スチレン共重合体(MBS樹脂)、スチレン/メタクリル酸メチル共重合体(MS樹脂)]等〕;ポリエステル樹脂(B5)[例えばポリエチレンテレフタレート、ポリブチレンテレフタレート、ポリシクロヘキサンジメチレンテレフタレート、ポリブチレンアジペート、ポリエチレンアジペート];ポリアミド樹脂(B6)[例えばナイロン66、ナイロン69、ナイロン612、ナイロン6、ナイロン11、ナイロン12、ナイロン46、ナイロン6/66、ナイロン6/12];ポリカーボネート樹脂(B7)[例えばポリカーボネート(PC)、ポリカーボネート(PC)/ABSアロイ樹脂];ポリアセタール樹脂(B8)、およびこれらの2種以上の混合物が挙げられる。
また、これらの(B1)に前記のスチレンおよび/またはその誘導体のモノマーをグラフトしたもの(変性ポリフェニレンエーテル)も(B1)に含まれる。
(メタ)アクリル酸の誘導体としては、例えばアルキル(C1~20)(メタ)アクリレート[メチル(メタ)アクリレート、エチル(メタ)アクリレート、ブチル(メタ)アクリレート等]、モノ-およびジ-アルキル(C1~4)アミノアルキル(C2~4)(メタ)アクリレート[メチルアミノエチル(メタ)アクリレート、ジメチルアミノエチル(メタ)アクリレート等]、(メタ)アクリロニトリルおよび(メタ)アクリルアミドが挙げられる。
不飽和アルコールのアルキルエーテルとては、上記不飽和アルコールのアルキル(C1~20)エーテル(メチルビニルエーテル、エチルビニルエーテル等〉が挙げられる。ハロゲン含有ビニルモノマーとしては、C2~12、例えば塩化ビニル、塩化ビニリデンおよびクロロプレンが挙げられる。
これらのうち帯電防止性付与の観点から好ましいのは、ポリプロピレン、ポリエチレン、プロピレン-エチレン共重合体、プロピレンおよび/またはエチレンとC4~12のα-オレフィンの1種以上との共重合体[共重合比(重量比)=90/10~10/90、ランダムおよび/またはブロック付加]である。
(B2)の結晶化度は、帯電防止性の観点から好ましくは0~98%、さらに好ましくは0~80%、特に好ましくは0~70%である。
ここにおいて結晶化度は、X線回折、赤外線吸収スペクトル等の方法によって測定される〔「高分子の固体構造-高分子実験学講座2」(南篠初五郎)、42頁、共立出版1958年刊参照〕。
ビニル基含有芳香族炭化水素としては、C8~30の、スチレンおよびその誘導体、例えばo-、m-およびp-アルキル(C1~10)スチレン(ビニルトルエン等)、α-アルキル(C1~10)スチレン(α-メチルスチレン等)およびハロゲン化スチレン(クロロスチレン等)が挙げられる。
(B4)の具体例としては、ポリスチレン、ポリビニルトルエン、スチレン/アクリロニトリル共重合体(AS樹脂)[共重合比(重量比)=70/30~80/20)]、スチレン/メタクリル酸メチル共重合体(MS樹脂)[共重合比(重量比)=60/40~90/10]、スチレン/ブタジエン共集合体[共重合比(重量比)=60/40~95/5]、アクリロニトリル/ブタジエン/スチレン共重合体(ABS樹脂)[共重合比(重量比)=(20~30)/(5~40)/(40~70)]、メタクリル酸メチル/ブタジエン/スチレン共重合体(MBS樹脂)[共重合比(重量比)=(20~30)/(5~40)/(40~70)]等が挙げられる。
(B63)におけるアミノカルボン酸としては、前記(b22)として例示したものが挙げられ、(B63)としては、アミノエナント酸の重縮合によるナイロン7、ω-アミノウンデカン酸の重縮合によるナイロン11、12-アミノドデカン酸の重縮合によるナイロン12等が挙げられる。
分子量調整剤としてのジカルボン酸のうち、好ましいのは脂肪族ジカルボン酸、芳香族ジカルボン酸および3-スルホイソフタル酸アルカリ金属塩、さらに好ましいのはアジピン酸、セバシン酸、テレフタル酸、イソフタル酸および3-スルホイソフタル酸ナトリウムである。また、分子量調整剤としてのジアミンのうち、好ましいのはヘキサメチレンジアミン、デカメチレンジアミンである。
(B7)のMFRは、樹脂物性および帯電防止性の観点から好ましくは0.5~150、さらに好ましくは1~100である。ここにおいてMFRは、JIS K7210(1994年)に準じて(ポリカーボネート樹脂の場合は280℃、荷重2.16kgf)測定される。
(B8)のMFRは、樹脂物性および帯電防止性の観点から好ましくは0.5~150、さらに好ましくは1~100である。ここにおいてMFRは、JIS K7210(1994年)に準じて(ポリアセタール樹脂の場合は190℃、荷重2.16kgf)測定される。
(B8)の固有粘度[η]は、樹脂物性および帯電防止性の観点から好ましくは0.1~4、さらに好ましくは0.2~3.5、特に好ましくは0.3~3である。
本発明の帯電防止性樹脂組成物(X)は、帯電防止剤(A)と熱可塑性樹脂(B)を含有してなり、(B)と(A)の220℃における溶融粘度比が0.5~5、帯電防止性の観点から好ましくは0.7~3.5、さらに好ましくは0.8~2.5、とくに好ましくは0.9~1.5、かつ(B)と(A)とのSPの差の絶対値が1.0~3.0、帯電防止性および機械特性の観点から好ましくは1.1~2.5、さらに好ましくは1.2~2.0である帯電防止性樹脂組成物である。
また、SPについても同様であり、帯電防止性樹脂組成物(X)を構成する(A)と(B)の特定の組合せにおいては、これらのSPの差の絶対値が上記範囲を満足する必要があるものの、帯電防止剤(A)が有するSP、または(B)が有するSPのそれぞれは任意でよく、とくに限定されるものではない。
帯電防止性向上剤(C1)には、アルカリ金属もしくはアルカリ土類金属の塩(C11)、界面活性剤(C12)および/またはイオン性液体(C13)からなる群から選ばれる1種または2種以上の混合物が含まれる。
(C11)を添加する方法については特に限定はないが、組成物中への効果的な分散のさせ易さから、帯電防止剤(A)中に予め分散させておくことが好ましい。
また、(A)中へ(C11)を分散させる場合、(A)の製造(重合)時に予め(C11)を添加し分散させておくのが特に好ましい。(C11)を(A)の製造時に添加するタイミングは特に制限なく、重合前、重合中および重合後のいずれでもよい。
R-X-・Z+(1)
Rとしては、アルキル基、アルケニル基、アルキルアリール基およびアリールアルキル基が挙げられる。
アルキル基としては、オクチル、デシル、ドデシル、ペンタデシルおよびオクタデシル基等;
アルケニル基としては、オクテニル、デセニル、ドデセニル、ペンタデセニルおよびオクタデセニル基等;
アルキルアリール基としては、エチルフェニル、ペンチルフェニル、ノニルフェニル、デシルフェニル、ドデシルフェニル、ペンタデシルフェニルおよびオクタデシルフェニル基等;
アリールアルキル基としては、フェニルエチル、フェニルペンチル、フェニルデシル、フェニルノニル、フェニルドデシル、フェニルペンタデシルおよびフェニルオクタデシル基等が挙げられる。
上記Rのうち、帯電防止性の観点から好ましいのはアルキル基およびアルキルアリール基、さらに好ましいのはC12~21のアルキルアリール基、とくに好ましいのはドデシルフェニル基およびペンタデシルフェニル基である。
(1)イミダゾリニウムカチオン
C5~15、例えば1,2,3,4-テトラメチルイミダゾリニウム、1,3-ジメチルイミダゾリニウム;
(2)イミダゾリウムカチオン
C5~15、例えば1,3-ジメチルイミダゾリウム、1-エチル-3-メチルイミダゾリウム;
C6~15、例えば1,3-ジメチル-1,4,5,6-テトラヒドロピリミジニウム、1,2,3,4-テトラメチル-1,4,5,6-テトラヒドロピリミジニウム;
(4)ジヒドロピリミジニウムカチオン
C6~20、例えば1,3-ジメチル-1,4-もしくは-1,6-ジヒドロピリミジニウム[これらを1,3-ジメチル-1,4(6)-ジヒドロピリミジニウムと表記し、以下同様の表記を用いる。]、8-メチル-1,8-ジアザビシクロ[5,4,0]-7,9(10)-ウンデカジエニウム。
1-n-ブチル-2-メチルピラゾリウムが挙げられる。
(1)イミダゾリニウム骨格を有するグアニジニウムカチオン
C8~15、例えば2-ジメチルアミノ-1,3,4-トリメチルイミダゾリニウム、2-ジエチルアミノ-1,3,4-トリメチルイミダゾリニウム;
(2)イミダゾリウム骨格を有するグアニジニウムカチオン
C8~15、例えば2-ジメチルアミノ-1,3,4-トリメチルイミダゾリウム、2-ジエチルアミノ-1,3,4-トリメチルイミダゾリウム;
C10~20、例えば2-ジメチルアミノ-1,3,4-トリメチル-1,4,5,6-テトラヒドロピリミジニウム、2-ジエチルアミノ-1,3-ジメチル-4-エチル-1,4,5,6―テトラヒドロピリミジニウム;
(4)ジヒドロピリミジニウム骨格を有するグアニジニウムカチオン
C10~20、例えば2-ジメチルアミノ-1,3,4-トリメチル-1,4(6)-ジヒドロピリミジニウム、2-ジエチルアミノ-1,3-ジメチル-4-エチル-1,4(6)-ジヒドロピリミジニウム。
これらのうち、帯電防止性および成形品の外観の観点から好ましいのはアルキルアレーン(C8~30)スルホン酸のイミダゾリウム塩および金属塩、さらに好ましいのはドデシルベンゼンスルホン酸の、1-エチル-3-メチルイミダゾリウム塩、1,3-ジメチル-2-エチルイミダゾリウム塩およびアルカリ金属(ナトリウム等)塩、ペンタデカンベンゼンスルホン酸の、1-エチル-3-メチルイミダゾリウム塩、1,3-ジメチル-2-エチルイミダゾリウム塩およびアルカリ金属(ナトリウム等)塩である。
両性界面活性剤(C124)としては、高級アルキルアミノプロピオン酸塩等のアミノ酸型両性界面活性剤、高級アルキルジメチルベタイン、高級アルキルジヒドロキシエチルベタイン等のベタイン型両性界面活性剤等が挙げられる。
上記の両性界面活性剤(C124)における塩には、金属塩、例えばアルカリ金属(リチウム、ナトリウム、カリウム等)、アルカリ土類金属(カルシウム、マグネシウム等)およびIIB族金属(亜鉛等)の塩;アンモニウム塩;並びに、アミン塩[アルキルアミン(C1~720)塩およびアルカノールアミン(C2~12、例えばモノ-、ジ-およびトリエタノールアミン)塩等]および4級アンモニウム塩が含まれる。
これらの界面活性剤は単独でも2種以上を併用してもよい。
(C12)を添加する方法についても特に限定はないが、樹脂組成物中へ効果的に分散させるためには、(A)中に予め分散させておくことが好ましい。また、(A)中へ(C12)を分散させる場合、(A)の製造(重合〉時に該(C12)を予め添加し分散させておくのが特に好ましい。(C12)を(A)の製造時に添加するタイミングは特に制限なく、重合前、重合中および重合後の何れでもよい。
上記カチオンは1種単独でも、また2種以上を併用してもいずれでもよい。これらのうち、帯電防止性の観点から好ましいのはアミジニウムカチオン、さらに好ましいのはイミダゾリウムカチオン、とくに好ましいのは1-エチル-3-メチルイミダゾリウムカチオンである。
有機酸としては、例えばカルボン酸、硫酸エステル、スルホン酸およびリン酸エステル:無機酸としては、例えば超強酸(例えばホウフッ素酸、四フッ化ホウ素酸、過塩素酸、六フッ化リン酸、六フッ化アンチモン酸および六フッ化ヒ素酸)、リン酸およびホウ酸。
上記有機酸および無機酸は1種単独でも2種以上の併用でもいずれでもよい。
上記有機酸および無機酸のうち、(C13)の帯電防止性の観点から好ましいのは(C13)を構成するアニオンのHamett酸度関数(-H0)が12~100である、超強酸の共役塩基、超強酸の共役塩基以外のアニオンを形成する酸およびこれらの混合物である。
超強酸としてのプロトン酸としては、例えばビス(トリフルオロメチルスルホニル)イミド酸、ビス(ペンタフルオロエチルスルホニル)イミド酸、トリス(トリフルオロメチルスルホニル)メタン、過塩素酸、フルオロスルホン酸、アルカン(C1~30)スルホン酸[例えばメタンスルホン酸、ドデカンスルホン酸等)、ポリ(n=1~30)フルオロアルカン(C1~30)スルホン酸(例えばトリフルオロメタンスルホン酸、ペンタフルオロエタンスルホン酸、ヘプタフルオロプロパンスルホン酸、ノナフルオロブタンスルホン酸、ウンデカフルオロペンタンスルホン酸およびトリデカフルオロヘキサンスルホン酸)、ホウフッ素酸および四フッ化ホウ素酸が挙げられる。
これらのうち合成の容易さの観点から好ましいのはホウフッ素酸、トリフルオロメタンスルホン酸、ビス(トリフルオロメタンスルホニル)イミド酸およびビス(ペンタフルオロエチルスルホニル)イミド酸である。
これらのうち(C13)の初期電導度の観点から好ましいのはフッ化水素である。
プロトン酸とルイス酸の組み合わせは任意であるが、これらの組み合わせからなる超強酸としては、例えばテトラフルオロホウ酸、ヘキサフルオロリン酸、六フッ化タンタル酸、六フッ化アンチモン酸、六フッ化タンタルスルホン酸、四フッ化ホウ素酸、六フッ化リン酸、塩化三フッ化ホウ素酸、六フッ化ヒ素酸およびこれらの混合物が挙げられる。
(C13)を添加する方法についても特に限定はないが、樹脂組成物中へ効果的に分散させるためには、(A)中に予め分散させておくことが好ましい。また、(A)中へ(C13)を分散させる場合、(A)の製造(重合)時に該(C13)を予め添加し分散させておくのが特に好ましい。(C13)を(A)の製造時に添加するタイミングは特に制限なく、重合前、重合中および重合後のいずれでもよい。
(C2)の使用量は、(A)と(B)の合計重量に基づいて通常20%以下、相溶化効果および成形品の機械物性の観点から、好ましくは0.1~15%、さらに好ましくは1~10%、特に好ましくは1.5~8%である。
(C2)を添加する方法については特に限定はないが、組成物中への効果的な分散もしくは溶解のさせ易さから、帯電防止剤(A)中に予め分散させておくことが好ましい。
また、(A)中へ(C2)を分散もしくは溶解させる場合、(A)の製造(重合)時に予め(C2)を添加しておくのが特に好ましい。(C2)を(A)の製造時に添加するタイミングは特に制限なく、重合前、重合中および重合後のいずれでもよい。
硫黄含有難燃剤(C33)としては、硫酸エステル、有機スルホン酸、スルファミン酸、有機スルファミン酸、およびそれらの、塩、エステルおよびアミド等;
珪素含有難燃剤(C34)としては、ポリオルガノシロキサン等;
リン含有難燃剤(C35)としては、リン含有の酸およびそのエステル(C2~20)、例えばリン酸、ホスフェート、ハロゲン含有ホスフェート、亜リン酸、ホスホネート、およびリン酸アンモニウム塩等、が挙げられる。
これらの難燃剤は、必要に応じて難燃助剤[ドリップ防止剤(例えばポリテトラフルオロエチレン)、金属酸化物(例えば酸化亜鉛)等]を併用してもよい。
溶融混合する方法としては、一般的にはペレット状または粉体状の成分を適切な混合機、例えばヘンシェルミキサー等で混合した後、押出機で溶融混合してペレット化する方法が適用できる。
溶融混合時の各成分の添加順序には特に限定はないが、例えば、
(1)帯電防止剤(A)、熱可塑性樹脂(B)および必要により(C)を一括して溶融混合する方法、
(2)帯電防止剤(A)、熱可塑性樹脂(B)の一部を予め溶融混合して帯電防止剤の高濃度樹脂組成物(マスターバッチ樹脂組成物)を作成し、その後、残りの(B)並びに必要により(C)を溶融混合する方法、が挙げられる。
(2)の方法におけるマスターバッチ樹脂組成物中の本発明の帯電防止剤の濃度は好ましくは40~80重量%、さらに好ましくは50~70重量%である。
これらのうち(2)の方法は、マスターバッチ法と呼ばれる方法で、帯電防止剤(A)の(B)への効率的な分散の観点から好ましい方法である。
該成形品を塗装する方法としては、エアスプレー法、エアレススプレー法、静電スプレー法、浸漬法、ローラー法、刷毛塗り法等が挙げられるが、これらに限定されるものではない。塗料としては、ポリエステルメラミン、エポキシメラミン、アクリルメラミンおよびアクリルウレタン樹脂塗料等の種々の塗料が挙げられる。
塗装膜厚(乾燥後膜厚)は、目的に応じて適宜選択することができるが塗膜物性の観点から好ましくは10~50μm、さらに好ましくは15~40μmである。
また、該成形品に印刷する方法としては、種々の印刷法、例えばグラビア印刷、フレキソ印刷、スクリーン印刷およびオフセット印刷が挙げられる。印刷インキとしてはプラスチックの印刷に通常用いられるものが挙げられる。
ステンレス製オートクレープに、熱減成法[23℃における密度0.90g/cm3、MFR6.0g/10分のエチレン/プロピレン(ランダム付加)共重合体(エチレン含量2%)を410±0.1℃、窒素ガス雰囲気下での熱減成]で得られた低分子量エチレン/プロピレンランダム共重合体(Mn3,500、密度0.89g/cm3、C1,000個当たりの二重結合量7.1個、1分子当たりの二重結合の平均数1.8、両末端変性可能なポリオレフィンの含有量90%)95部、無水マレイン酸10部、キシレン30部を仕込み、窒素ガス雰囲気(密閉)下、200℃で溶融し、200℃、20時間反応させた。
その後、過剰の無水マレイン酸とキシレンを減圧下、200℃、3時間で留去して、酸変性ポリオレフィン(b1-1)を得た。(b1-1)の酸価は27.2、Mnは3,700であった。
ステンレス製オートクレープに、(b1-1)88部と12-アミノドデカン酸12部を仕込み、窒素ガス雰囲気下、200℃で溶融し、200℃、3時間、1.3kPa以下の減圧下、反応させ、二次変性ポリオレフィン(b1-2)を得た。(b1-2)の酸価は24.0、Mnは4,200であった。
ステンレス製のオートクレープに、酸変性ポリオレフィン(b1-1)95部とエタノールアミン5部を窒素ガス雰囲気下、180℃で溶融し、180℃、2時間反応させた。その後、過剰のエタノールアミンを減圧下、180℃、2時間で留去して、水酸基をポリマー両末端に有する変性ポリオレフィン(b1-3)を得た。(b1-3)の水酸基価は26.0、アミン価は0.01、Mnは3,900であった。
ステンレス製のオートクレープに、酸変性ポリオレフィン(b1-1)95部とビス(2-アミノエチル)エーテル40部を窒素ガス雰囲気下、撹拌下、200℃で溶融し、200℃、2時間反応させた。その後、過剰のビス(2-アミノエチル)エーテルを減圧下、200℃、2時間で留去して、両末端にアミノ基を有する変性ポリオレフィン(b1-4)を得た。(b1-4)のアミン価は25.5、Mnは4,000であった。
ステンレス製オートクレープに、ε-カプロラクタム173部、テレフタル酸33.2部、酸化防止剤〔商品名「イルガノックス1010」、チバ・スペシャルティ・ケミカルズ(株)製、テトラキス[メチレン-3-(3’,5’-ジ-t-ブチル-4’-ヒドロキシフェニル)プロピオネート]メタン、以下同じ。〕0.4部および水10部を仕込み、オートクレープ内を窒素置換後、220℃で加圧(0.3~0.4MPa、以下同じ。)密閉下、4時間加熱撹拌し、両末端にカルボキシル基を有するポリアミド(b2-1)得た。(b2-1)のMnは1,000、酸価は111であった。
ガラス製オートクレープにN-メチルジエタノールアミン41部、アジピン酸49部および酢酸ジルコニル0.3部を仕込み、窒素置換後、2時間かけて220℃まで昇温し、1時間かけて0.13kPaまで減圧してポリエステル化反応を行わせた。反応終了後、50℃まで冷却し、メタノール100部を加えて溶解させた。撹絆しながら該溶液の温度を120℃に保ち、炭酸ジメチル31部を3時間かけて徐々に滴下し、同温度で6時間熟成させた。室温まで冷却後、ジオクチルリン酸110部を加え、室温で1時間撹拌した。次いでメタノールを減圧留去し、1分子内に4級アンモニウム基を平均12個有するカチオン性ポリマー(a2-1)を得た。(a2-1)の水酸基価は16.5、酸価は0.5、Mnは6,800、体積固有抵抗値は1×105Ω・cmであった。
ステンレス製オートクレープに、Mn300のPEG67部、5-スルホイソフタル酸ジメチルエステルのナトリウム塩49部およびジブチルスズオキシド0.2部を仕込み、0.67kPaの減圧下で190℃まで昇温し、反応によって生じるメタノールを留去しながら6時間エステル交換反応させ、1分子内にスルホン酸ナトリウム塩基を平均5個有するアニオン性ポリマー(a3-1)を得た。(a3-1)の水酸基価は29.6、酸価は0.4、Mnは3,500、体積固有抵抗値は2×106Ω・cmであった。
ステンレス製オートクレープに、二次変性ポリオレフィン(b1-2)60.9部、PEG(a1-1)(Mn3,000、体積固有抵抗値1×107Ω・cm)39.1部、酸化防止剤0.3部および酢酸ジルコニル0.5部を仕込み、230℃、0.13kPa以下の減圧下の条件で4時間重合させ粘稠なポリマーを得た。このポリマーをベルト上にストランド状で取り出し、ペレット化することによりブロックポリマーからなる帯電防止剤(A-1)を得た。(A-1)の溶融粘度は180Pa・s、SPは8.8、Mnは30,000であった。(平均繰り返し数はNn4.2)
製造例8において、重合時間を4時間から3時間に変えたこと以外は製造例8と同様にして、ブロックポリマーからなる帯電防止剤(A-2)を得た。(A-2)の溶融粘度は40Pa・s、SPは8,8、Mnは22,000であった。(平均繰り返し数Nnは3.1)
製造例8において、重合時間を4時間から3.5時間に変えたこと以外は製造例8と同様にして、ブロックポリマーからなる帯電防止剤(A-3)を得た。(A-3)の溶融粘度は110Pa・s、SPは8.8、Mnは26,000であった。(平均繰り返し数Nnは3.6)
製造例8において、重合時間を4時間から10時間に変えたこと以外は製造例8と同様にして、ブロックポリマーからなる帯電防止剤(A-4)を得た。(A-4)の溶融粘度は280Pa・s、SPは8.8、Mnは41,000であった。(平均繰り返し数Nnは5.7)
製造例8において、二次変性ポリオレフィン(b1-2)60.9部、PEG(a1-1)39.1部に代えて、水酸基をポリマー両末端に有する変性ポリオレフィン(b1-3)59.0部、(a1-1)41.0部、ドデカン二酸6部を用いたこと以外は製造例8と同様にして、ブロックポリマーからなる帯電防止剤(A-5)を得た。(A-5)の溶融粘度は130Pa・s、SPは8.8、Mnは25,000であった。(平均繰り返し数Nnは3.6)
製造例8において、二次変性ポリオレフィン(b1-2)60.9部、PEG(a1-1)39.1部に代えて、アミノ基をポリマー両末端に有する変性ポリオレフィン(b1-4)59.5部、PEG(a1-1)40.5部、ドデカン二酸6部を用いたこと以外は製造例8と同様にして、ブロックポリマーからなる帯電防止剤(A-6)を得た。(A-6)の溶融粘度は150Pa・s、SPは8.8、Mnは28,000であった。(平均繰り返し数Nnは4.0)
製造例8において、二次変性ポリオレフィン(b1-2)60.9部、PEG(a1-1)39.1部に代えて、(b1-2)40.7部、カチオン性ポリマー(a2-1)59.3部を用いたこと以外は製造例8と同様にして、ブロックポリマーからなる帯電防止剤(A-7)を得た。(A-7)の溶融粘度は210Pa・s、SPは8.7、Mnは29,000であった。(平均繰り返し数Nnは2.6)
製造例8において、二次変性ポリオレフィン(b1-2)60.9部、PEG(a1-1)39.1部に代えて、(b1-2)55.2部、アニオン性ポリマー(a3-1)44.8部を用いたこと以外は製造例8と同様にして、ブロックポリマーからなる帯電防止剤(A-8)を得た。(A-8)の溶融粘度は190Pa・s、SPは9.4、Mnは28,000であった。(平均繰り返し数Nnは3.6)
製造例8において、二次変性ポリオレフィン(b1-2)60.9部、PEG(a1-1)39.1部に代えて、両末端にカルボキシル基を有するポリアミド(b2-1)20.3部、ビスフェノールAのEO付加物(Mn4,000、体積固有抵抗値2×107Ω・cm)(a1-2)79.7部を用いたこと以外は製造例8と同様にして、ブロックポリマーからなる帯電防止剤(A-9)を得た。(A-9)の溶融粘度は250Pa・s、SPは11.0、Mnは23,000であった。(平均繰り返し数Nnは4.6)
ステンレス製オートクレープに、PEG(a1-1)85.7部とMDI 14.3部を仕込み90℃で反応させて末端イソシアネート基変性PEG(a1-3)(NCO含量3.0%、体積固有抵抗値1×107Ω・cm)を得た。その後、(a1-3)47.3部と、水酸基をポリマー両末端に有する変性ポリオレフィン(b1-3)52.7部を2軸押出機を用いて、200℃、滞留時間30秒で溶融混練し、これをストランド状に取り出し、ペレット化することによりブロックポリマーからなる帯電防止剤(A-10)を得た。(A-10)の溶融粘度は140Pa・s、SPは9.2、Mnは25,000であった。
(平均繰り返し数Nnは3.6)
製造例17において、(a1-3)47.3部、(b1-3)52.7部に代えて、(a1-3)38.9部、アミノ基をポリマー両末端に有する変性ポリオレフィン(b1-4)61.1部を用いたこと以外は製造例17と同様にして、ブロックポリマーからなる帯電防止剤(A-11)を得た。(A-11)の溶融粘度は150Pa・s、SPは9.3、Mnは24,000であった。(平均繰り返し数Nnは3.4)
製造例8において、重合時間を4時間から2時間に変えたこと以外は製造例8と同様にして、ブロックポリマーからなる帯電防止剤(比A-1)を得た。(比A-1)の溶融粘度は20Pa・s、SPは8.8、Mnは16,000であった。(平均繰り返し数Nnは2.2)
製造例8において、重合時間を4時間から40時間に変えたこと以外は製造例8と同様にして、ブロックポリマーからなる帯電防止剤(比A-2)を得た。(比A-2)の溶融粘度は400Pa・s、SPは8.8、Mnは72,000であった。(平均繰り返し数Nnは10.0)
表1、2に示す処方に従って、各成分をヘンシェルミキサーで3分間ブレンドした後、ベント付き2軸押出機にて、100rpm、滞留時間5分間、溶融温度220℃で溶融混練して樹脂組成物(実施例1~18、比較例1~11)を得た。
(A-1)60部、(B-1)40部、(C1-1)3部、(C4-1)2部をヘンシェルミキサーで3分間ブレンドした後、ベント付き2軸押出機にて、100rpm、滞留時間5分間、溶融温度220℃で溶融混練してマスターバッチ樹脂組成物(M-1)を得た。
その後、(M-1)5.25部に(B-1)95部を、ヘンシェルミキサーで3分間ブレンドした後、ベント付き2軸押出機にて、100rpm、滞留時間5分間、溶融温度220℃で溶融混練して樹脂組成物を得た。
B-1 :HIPS樹脂[商品名「HIPS 433」、
PSジャパン(株)製]溶融粘度160Pa・s、
SP10.6
B-2 :ABS樹脂[商品名「セビアン680SF」、
ダイセルポリマー(株)製]溶融粘度400Pa・s、
SP11.7
B-3 :PC/ABS樹脂[商品名「サイコロイ C6600」、
SABICイノベーティブプラスチックスジャパン合同会社製]
溶融粘度550Pa・s、SP11.4
B-4 :変性PPE樹脂[商品名「ノリル V-095」、
SABICイノベーティブプラスチックスジャパン合同会社製]
溶融粘度580Pa・s、SP11.2
B-5 :PP樹脂[商品名「PM771M」、サンアロマー(株)製]
溶融粘度170Pa・s、SP8.0
C1-1:1-エチル-3-メチルイミダゾリウムビス
(トリフルオロメタンスルホニル)イミド
C1-2:ドデシルベンゼンスルホン酸ナトリウム塩
C2-1:エポキシ化ポリスチレン系エラストマー
[商品名「エポフレンドAT501」、
ダイセル化学工業(株)製、相溶化剤。]
C4-1:酸化防止剤[商品名「イルガノックス1010」、
チバ・スペシャルティ・ケミカルズ(株)製、テトラキス
[メチレン-3-(3’,5’-ジ-t-ブチル-4’
-ヒドロキシフェニル)プロピオネート]メタン
上記で得られた樹脂組成物を射出成形機[型番「PS40E5ASE」、日精樹脂工業(株)製。以下同じ]を用い、シリンダー温度220℃、金型温度50℃の条件で成形品(100×100×2mm、および100×10×3.2mm)を作製し、下記項目の性能評価を行った。結果を表1、2に示す。
(1)表面固有抵抗値
ASTM D257(1984年)に準拠。試験片(100×100×2mm)を用い超絶縁計[型番「DSM-8103」、東亜電波(株)製]により23℃、湿度50%RHの雰囲気下で測定した。
(2)衝撃強度
ASTM D256 Method A(ノッチ付き、3.2mm厚)に準拠。
(3-1)表面外観
射出成形品(100×100×2mm)の表面および裏面の外観を観察して下記の基準で評価した。
(評価基準)
○ 異常なく良好(帯電防止剤を含有しない熱可塑性樹脂と同等)
× 表面荒れ、フクレ等が認められる
(3-2)断面外観
試験片(100×100×2mm)の面中央部を通るように面に垂直にカッターで切断し、その断面を観察して下記の基準で評価した。
(評価基準)
○ 断面が均一で良好(帯電防止剤を含有しない熱可塑性樹脂と同等)
× 断面が層状で不均一
Claims (16)
- 帯電防止剤(A)と熱可塑性樹脂(B)を含有してなり、(B)と(A)の220℃における溶融粘度比が0.5~5かつ溶解度パラメーターの差の絶対値が1.0~3.0である帯電防止性樹脂組成物。
- (A)と(B)の重量比が、0.5/99.5~10/90である請求項1記載の組成物。
- (A)が、1×105~1×1011Ω・cmの体積固有抵抗値を有する親水性ポリマー(a)のブロックと、疎水性ポリマー(b)のブロックとが、エステル結合、アミド結合、エーテル結合、ウレタン結合、ウレア結合およびイミド結合からなる群から選ばれる少なくとも1種の結合を介して交互に結合した構造を有するブロックポリマーである請求項1または2記載の組成物。
- (a)が、ポリエーテル、カチオン性ポリマーおよびアニオン性ポリマーからなる群から選ばれる少なくとも1種である請求項3記載の組成物。
- (a)の数平均分子量が150~20,000である請求項3または4記載の組成物。
- (b)が、ポリオレフィン、ポリアミド、ポリアミドイミドおよびポリエステルからなる群から選ばれる少なくとも1種である請求項3~5のいずれか記載の組成物。
- (b)の数平均分子量が150~20,000である請求項3~6のいずれか記載の組成物。
- ブロックポリマーの重量に基づく(a)のブロックの割合が20~80%である請求項3~7のいずれか記載の組成物。
- (B)が、ポリフェニレンエーテル樹脂、ポリオレフィン樹脂、ポリ(メタ)アクリル樹脂、ポリスチレン樹脂、ポリエステル樹脂、ポリアミド樹脂、ポリカーボネート樹脂およびポリアセタール樹脂からなる群から選ばれる1種または2種以上である請求項1~8のいずれか記載の組成物。
- さらに、帯電防止性向上剤(C1)、相溶化剤(C2)、難燃剤(C3)、およびその他の樹脂用添加剤(C4)からなる群から選ばれる1種または2種以上の添加剤(C)を含有させてなる請求項1~9のいずれか記載の組成物。
- (C1)が、アルカリ金属もしくはアルカリ土類金属の塩、界面活性剤およびイオン性液体からなる群から選ばれる1種または2種以上である請求項10記載の組成物。
- (A)と(B)の合計重量に基づく(C1)の使用量が、0.001~10%である請求項10または11記載の組成物。
- 請求項1~12のいずれか記載の組成物用の、(A)と(B)を含有してなるマスターバッチ樹脂組成物(M)において、(M)中の(A)の濃度が40~80重量%であるマスターバッチ樹脂組成物(M)。
- 請求項13記載のマスターバッチ樹脂組成物(M)に、さらに熱可塑性樹脂(B)を含有させてなる帯電防止性樹脂組成物。
- 請求項1~12、14のいずれか記載の組成物を成形してなる帯電防止性樹脂成形品。
- 請求項15記載の成形品に塗装および/または印刷を施してなる成形物品。
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2010
- 2010-07-30 KR KR1020127000141A patent/KR101669431B1/ko active IP Right Grant
- 2010-07-30 JP JP2010171767A patent/JP2011046941A/ja active Pending
- 2010-07-30 US US13/384,598 patent/US8859647B2/en active Active
- 2010-07-30 WO PCT/JP2010/004855 patent/WO2011013386A1/ja active Application Filing
- 2010-07-30 TW TW099125514A patent/TWI465502B/zh active
- 2010-07-30 CN CN2010800277442A patent/CN102471588A/zh active Pending
- 2010-07-30 EP EP10804137.7A patent/EP2460859A4/en not_active Withdrawn
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JP2011153300A (ja) * | 2009-12-29 | 2011-08-11 | Sanyo Chem Ind Ltd | 搬送材用成形品用樹脂組成物 |
JP2013136724A (ja) * | 2011-11-28 | 2013-07-11 | Sanyo Chem Ind Ltd | 帯電防止剤及び帯電防止性樹脂組成物 |
JP2013209619A (ja) * | 2012-02-27 | 2013-10-10 | Sanyo Chem Ind Ltd | 帯電防止剤及び帯電防止性樹脂組成物 |
JP2018053265A (ja) * | 2018-01-10 | 2018-04-05 | 東洋スチレン株式会社 | 光学用スチレン系樹脂組成物 |
Also Published As
Publication number | Publication date |
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CN102471588A (zh) | 2012-05-23 |
JP2011046941A (ja) | 2011-03-10 |
US8859647B2 (en) | 2014-10-14 |
TW201109379A (en) | 2011-03-16 |
EP2460859A1 (en) | 2012-06-06 |
KR20120089618A (ko) | 2012-08-13 |
EP2460859A4 (en) | 2016-08-17 |
KR101669431B1 (ko) | 2016-10-26 |
TWI465502B (zh) | 2014-12-21 |
US20120128945A1 (en) | 2012-05-24 |
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