WO2008041690A1 - Composition antistatique et moulage de celle-ci - Google Patents

Composition antistatique et moulage de celle-ci Download PDF

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Publication number
WO2008041690A1
WO2008041690A1 PCT/JP2007/069244 JP2007069244W WO2008041690A1 WO 2008041690 A1 WO2008041690 A1 WO 2008041690A1 JP 2007069244 W JP2007069244 W JP 2007069244W WO 2008041690 A1 WO2008041690 A1 WO 2008041690A1
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WO
WIPO (PCT)
Prior art keywords
sheet
antistatic
antistatic agent
polymer
polyolefin
Prior art date
Application number
PCT/JP2007/069244
Other languages
English (en)
Japanese (ja)
Inventor
Hideyuki Takama
Hiroshi Odaka
Tomohiro Kurooka
Keishi Tada
Original Assignee
Idemitsu Unitech Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Idemitsu Unitech Co., Ltd. filed Critical Idemitsu Unitech Co., Ltd.
Priority to JP2008537528A priority Critical patent/JPWO2008041690A1/ja
Publication of WO2008041690A1 publication Critical patent/WO2008041690A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene

Definitions

  • the present invention relates to an antistatic composition. More specifically, the present invention relates to an antistatic composition obtained by adding a polymer type antistatic agent to polyolefin and a molded product thereof.
  • Polypropylene and polyethylene are general-purpose resins, and are used in various industrial fields such as automobiles, machine parts, containers, packaging, building materials, and household goods. Since these resins are non-conductive substances, antistatic agents such as surfactants are added to these resins to provide antistatic properties when used in applications that require antistatic properties.
  • Patent Document 1 discloses an ionic salt comprising a nitrogen ion cation having one or more aryl groups and a weakly coordinating anion (A And an antistatic polymer composition comprising at least one polymer and / or elastomer (B).
  • Patent Document 2 describes an antistatic composition obtained by dispersing a salt having an anion having a fluoro group and a sulfonyl group in a composition containing a resin and / or an elastomer. ing.
  • Patent Document 1 Japanese Patent Laid-Open No. 2005-350579
  • Patent Document 2 Japanese Unexamined Patent Publication No. 2006-137790
  • the present invention has been made in view of the above problems, and an object thereof is to provide an antistatic composition having sufficient antistatic performance and a molded product obtained therefrom.
  • An antistatic composition comprising a polyolefin having a melt flow rate of less than 2.5 (g / 10 min) and a polymer-type antistatic agent. 2. The system according to 1 above, wherein the amount of the polyolefin is 95 to 60 wt% and the amount of the polymer antistatic agent is 5 to 40 wt% in the total amount of the polyolefin and the polymer antistatic agent. Electrical composition.
  • a sheet or film comprising the antistatic composition according to 1 or 2 above.
  • a laminate comprising the sheet or film as described in 3 or 4 above.
  • a molded article comprising the sheet, film or laminate according to any one of 3 to 5 above.
  • FIG. 1 is a diagram showing the relationship between the MFR of a surface layer polypropylene and the surface resistivity.
  • FIG. 2 is a diagram showing the relationship between the thickness of the surface layer of the sheet and the surface resistivity.
  • FIG. 3 is a graph showing the relationship between the blending amount of the antistatic agent and the surface resistivity.
  • FIG. 4A is a schematic view of a cross section of a sheet produced in Example 20.
  • FIG. 4B is a schematic diagram of a cross section of the sheet produced in Example 21.
  • FIG. 4C is a schematic diagram of a cross section of the sheet manufactured in Comparative Example 4.
  • FIG. 5 is a view showing a micrograph of a cross section of a sheet produced in Example 20.
  • FIG. 6 is a view showing a micrograph of a cross section of the sheet produced in Example 21.
  • FIG. 7 is a view showing a micrograph of a cross section of a sheet produced in Comparative Example 4.
  • the antistatic composition of the present invention is characterized by comprising a polyolefin having a melt flow rate (MFR) of less than 2.5 (g / 10 min) and a polymer-type antistatic agent.
  • MFR melt flow rate
  • the polyolefin used in the present invention has a lower MFR than that conventionally used.
  • the present invention has been found that the antistatic performance of the composition can be significantly improved by using a polyolefin having a low MFR and a polymer type antistatic agent.
  • MFR means a measured value (g / 10min) at 230 ° C and a load of 2.16 kg.
  • the polyolefin used in the present invention any commercially available one can be used without any problem as long as the MFR is less than 2.5.
  • the polyolefin is polypropylene or polyethylene.
  • the MFR of polyolefin is preferably 0.3—1.6.
  • Polypropylene includes homopolymer polypropylene, copolymer polypropylene (block, random, graft) and the like.
  • Polyethylene includes homopolymer polyethylene, copolymer polyethylene (block, random, graft), low density polyethylene, high density polyethylene and the like.
  • the polymer antistatic agent used in the present invention includes an ion conductive polymer antistatic agent in which an ionic compound is blended with the polymer antistatic agent. p3 ⁇ 4.
  • the polymer-type antistatic agent is, for example, a polymer compound having a PEO (polyethylene oxide) chain in the molecule as a conductive unit, specifically, a polyethylene glycol methacrylate copolymer, Examples include polyether ester amide (PEEA), polyether ester amide imide (PEAI), and polyethylene oxide polypropylene oxide (PEO-PPO) copolymer.
  • PEO polyethylene oxide
  • PEAI polyether ester amide imide
  • PEO-PPO polyethylene oxide polypropylene oxide
  • polyether block polyolefin copolymer a polyoxyalkylene copolymer, or an ethylene oxide propylene oxide-aryl glycidyl copolymer may be mentioned.
  • the polymer type antistatic agent used in the present invention is preferably an ion conductive polymer type antistatic agent in which an ionic compound is blended with the polymer type antistatic agent.
  • An ion-conductive polymer antistatic agent exhibits antistatic properties by movement of Li ions and the like along the polymer ion conduction path.
  • the ion conductive polymer antistatic agent includes an ionic salt and a polymer antistatic agent.
  • an ionic salt for example, an ionic salt composed of a nitrogen cation having one or more aryl groups and a weakly coordinating anion is preferable. This ionic salt has a high ion density because it has a high ion density and a high ion mobility.
  • Examples of the nitrogen onium cation include an aliphatic nitrogen cation, an unsaturated cyclic nitrogen cation, and an aromatic nitrogen cation.
  • quaternary amines are preferred, and quaternary alkylamines having 1 to 18 carbon atoms other than aryl groups are preferred! /.
  • examples of the unsaturated cyclic nitrogen cation and the aromatic nitrogen cation include pyridinium, pyridazinum, pyrimidinum, pyradium, imidazolium, pyrazolium, thiazolium, oxazolium, and triazolium. Quaternary amines of these unsaturated cyclic nitrogen cation and aromatic nitrogen cation are more preferable.
  • the weakly coordinating anion used in the ionic salt of the present invention includes a weakly coordinating fluorinated organic anion containing at least one highly fluorinated alkylsulfonyl group, BF or PF.
  • Highly fluorinated alkylsulfonyl groups are all non-fluorinated carbon-bonded substituents S, perfluorinated sulfonyl groups or partially fluorinated alkyl groups bonded to carbons other than carbon atoms directly bonded to sulfonyl groups.
  • the ionic salt can be produced using a known method (for example, Masayoshi Watanabe et al. “Functional Creation and Application of Ionic Liquids” NTS (2004)).
  • ionic salts include salts having an anion having a fluoro group and a sulfonyl group. This salt is used in a state dissolved in water.
  • the salt having an anion having a fluoro group and a sulfonyl group is at least one member selected from the group consisting of a bis (fluoroalkylenosulfonylsulfonyl) imide ion, a tris (fluoroalkylsulfonyl) methide ion, and a fluoroalkylsulfonic acid ion. Force, chosen anion and
  • a cation selected from at least one of the group consisting of an alkali metal, a group 2A element, a transition metal, and an amphoteric metal.
  • bis (trifluoromethanesulfonyl) imide lithium, tris (trifluoromethanesulfonyl) methide, and lithium trifluoromethanesulfonate can be given.
  • a beam is preferred.
  • the blending amount of the ionic salt is preferably about 0.0;! To 30 parts by mass with respect to 100 parts by mass of the polyolefin.
  • ion conductive polymer antistatic agents used in the present invention include Sanconol TBX-25 and TBX-310 manufactured by Sanko Chemical Co., Ltd. These are antistatic agents comprising a combination of a polyether / polyolefin block copolymer and a lithium ion chloride compound.
  • an antistatic agent other than the polymer antistatic agent for example, a low molecular surfactant (for example, Elecon PP720A, manufactured by Dainippon Kagaku Co., Ltd.) can be used in combination.
  • a low molecular surfactant for example, Elecon PP720A, manufactured by Dainippon Kagaku Co., Ltd.
  • the amount of polyolefin in the total amount of polyolefin and polymer-type antistatic agent is 95 wt% or less, particularly 60 to 95 wt%.
  • the amount of the polymeric antistatic agent is 40 to 5 wt%. If the amount of resin exceeds 95 wt%, the surface resistance value may increase, and if the amount of resin is less than 6 Owt%, the inherent resin characteristics may not be obtained.
  • the antistatic composition of the present invention may contain a resin other than polyolefin, various additives, and the like within a range that does not impair the object of the present invention.
  • Examples of the resin include ABS resin.
  • Additives include crystalline nucleating agents, antioxidants, heat stabilizers, UV absorbers, flame retardants, flame retardant aids, colorants, pigments, antibacterial / antifungal agents, light fasteners, plasticizers, Known additives such as fillers are listed.
  • the antistatic composition of the present invention may consist essentially of polyolefin and a polymeric antistatic agent, or may consist solely of these components. “Substantially”
  • composition is composed of only polyolefin and a polymer-type antistatic agent, and can contain the above-mentioned known additives in addition to these components.
  • the antistatic composition of the present invention includes a mixture obtained by simply mixing the above-described components by dry blending, or a mixture obtained by melt-kneading and pelletizing with an extruder such as a twin-screw kneader. Can be used as a raw material.
  • the above mixture or pellet can be put into an extrusion molding machine, an injection molding machine or the like, and processed into a sheet film or various antistatic parts.
  • molded products often have antistatic properties only on the surface. Therefore, it is preferable to form a layered structure and to form a layer made of the antistatic composition of the present invention only on the surface layer from the viewpoint of reducing the amount of the antistatic agent used.
  • containers such as electronic component trays can be manufactured by forming sheets, films, and laminates by a known method such as vacuum forming.
  • the thickness of the sheet made of the antistatic composition of the present invention is preferably 10 m or more. . Below 10 m
  • the thickness of the sheet is particularly preferably 10 mm to 2 mm.
  • MFR is a value (g / 10min) measured at 230 ° C and a load of 2 ⁇ 16kg.
  • F704NT Homopolypropylene
  • a two-layer sheet was produced by a coextrusion method using a single screw extruder.
  • the raw material of the surface layer is E110G (85wt%), which is polypropylene, and TBX, which is an antistatic agent.
  • Table 1 shows the type of polypropylene used, the blending ratio of polypropylene and antistatic agent, the thickness of the sheet surface layer, and the surface resistivity.
  • the surface resistivity is in accordance with JIS K6911 and the sample shape is 11cm XI lcm. After the production, the measurement was performed on a sample stored at 23 ° C. and 50% RH for 12 hours or more.
  • a two-layer sheet was produced and evaluated in the same manner as in Example 1 except that the polypropylene shown in Table 1 was used. The results are shown in Table 1.
  • Example 14 From the results of Example 14 and Comparative Example 13, the relationship between the MFR of the polypropylene of the surface layer and the surface resistivity of the surface layer was determined. The results are shown in Figure 1. In the surface resistivity value (vertical axis), 1 ⁇ 0E + X means 1 X 10 X. For example, 1. 0E + 08 means 1 X 1 0 8 . The same applies to Figs.
  • Example 1 As shown in Table 1, a two-layer sheet was produced in the same manner as in Example 1 except that the blending ratio of polypropylene (E110G) and antistatic agent (TBX-25) and the thickness of the sheet surface layer were changed. evaluated. The results are shown in Table 1.
  • the relationship between the thickness of the surface layer of the two-layer sheet and the surface resistivity was evaluated. Specifically, a two-layer sheet was produced in the same manner as in Example 1 except that the thickness of the sheet surface layer was changed to ⁇ , ⁇ , 130 m, and 160 m.
  • a two-layer sheet was produced in the same manner as in Example 1, except that the polypropylene was changed to E105GM and the thickness of the sheet surface layer was changed to ⁇ , ⁇ , 120111 and 150111.
  • the thickness of the surface layer was controlled by adjusting the rotational speed of the extruder while keeping the sheet take-up speed constant.
  • the relationship between the blending amount of the antistatic agent and the surface resistivity was evaluated by changing the film thickness of the surface layer (50 to 111, 130 mm, and 160 mm).
  • a two-layer sheet was produced in the same manner as in Example 1 except that the blending amount of the antistatic agent (TBX25) was 15 wt%, 20 wt%, 30 wt% and 40 wt% for each film thickness.
  • Fig. 3 shows the relationship between the obtained antistatic agent content and the surface resistivity.
  • a two-layer sheet was produced and evaluated in the same manner as in Example 1 except that the thickness of the surface layer was 60 m.
  • the surface resistivity was 4.3 X 10 8 (Q / sq).
  • a l cm ⁇ 11 cm sample was taken out from the sheet, and stored for 12 hours or more at 23 ° C. and 50% RH after production.
  • a thin piece was taken out from almost the center of this sample, stained and fixed with ruthenium tetroxide, and then thinned with a cryomicrotome.
  • the cross-sections in the TD direction and MD direction of the sliced sample were observed with a transmission electron microscope (H-7650, manufactured by Hitachi, Ltd.) and photographed.
  • H-7650 transmission electron microscope
  • the antistatic agent was distributed throughout the thickness of the surface layer, and was further concentrated in the central portion. That is, there was a dense distribution in the layer! /.
  • the photograph (X5000) in Fig. 5 is a photo of the middle part of the antistatic agent densely packed! /.
  • Example 21 A two-layer sheet was produced and evaluated in the same manner as in Example 1 except that the blending ratio of polypropylene (El 10G) and antistatic agent (TBX-25) was 60:40 and the thickness of the surface layer was 70 m. . The surface resistivity was 6.6 X 10 7 (Q / sq).
  • Example 20 In the same manner as in Example 20, the cross section of the sheet was observed and photographed. As shown in the schematic diagram of the cross-section of FIG. 4B, the antistatic agent is distributed over the entire thickness of the surface layer, and is further concentrated in the central portion. Similar to Example 20, the force with the density distribution in the layer was higher than that of Example 20 in the density of the antistatic agent in the central portion.
  • the photograph (X 500 00) in Fig. 6 is a photograph of the central part where the antistatic agent is dense.
  • a two-layer sheet was produced and evaluated in the same manner as in Example 1 except that the thickness of Comparative Example 4 was 70 m.
  • Front surface resistivity of 2 was 9 X 10 U (Q / sq ).
  • Example 20 In the same manner as in Example 20, the cross section of the sheet was observed and photographed. As shown in the schematic diagram of the cross section of FIG. 4C, the antistatic agent was only distributed over the entire surface portion of the surface layer having a thickness of about 20 m, and there was no density distribution as in Examples 20 and 21.
  • the photograph (X5000) in Fig. 7 is a photograph of a part of the surface layer including the surface part.
  • a sample of 9 cm X 9 cm is taken from the two-layer sheet produced in Example 1, and using a stretching apparatus (manufactured by BRUCKNER) at a temperature of 158 ° C, a preheating time of 60 seconds, and a speed of 6 m / min.
  • the draw ratio was 2 ⁇ 2, 3 ⁇ 2, 3 ⁇ 3, 4 ⁇ 3.
  • the cooling time was 10 seconds.
  • the surface specific resistance value was measured before and behind extending
  • the antistatic composition of the present invention includes, for example, an antistatic container such as a tray, an automobile part that requires antistaticity, a home appliance part, an electronic equipment part, an electronic material manufacturing equipment, a battery member, and an information office. It can be suitably used for equipment parts, communication equipment, housing parts, optical machine members, household goods, industrial members, building materials, floor materials, packaging distribution members, and the like. In particular, it is suitable as a material for containers and packaging bodies such as carrier trays for electronic components such as ICs, capacitors, transistors, and LSIs.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne une composition antistatique comprenant une polyoléfine ayant une vitesse de fluage inférieure à 2,5 g/10 min et un agent antistatique polymère.
PCT/JP2007/069244 2006-10-02 2007-10-02 Composition antistatique et moulage de celle-ci WO2008041690A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008537528A JPWO2008041690A1 (ja) 2006-10-02 2007-10-02 制電性組成物及びその成形品

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JP2006-270430 2006-10-02
JP2006270430 2006-10-02

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WO2008041690A1 true WO2008041690A1 (fr) 2008-04-10

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KR (1) KR20090058007A (fr)
CN (1) CN101522783A (fr)
TW (1) TW200831657A (fr)
WO (1) WO2008041690A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010201924A (ja) * 2009-02-06 2010-09-16 Mitsubishi Plastics Inc 帯電防止フィルム
JP2020083957A (ja) * 2018-11-20 2020-06-04 三洋化成工業株式会社 帯電防止性樹脂組成物

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014115965A1 (fr) 2013-01-22 2014-07-31 (주)비에스써포트 Produit moulé en plastique comprenant des microparticules en composé à base de cuivre et son procédé de préparation

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JPH07251445A (ja) * 1994-03-14 1995-10-03 Nippon Petrochem Co Ltd 帯電防止性に優れた易引裂性ポリオレフィンフィルムおよびそれを用いた多層フィルム
JP2003277622A (ja) * 2002-03-25 2003-10-02 Sanko Kagaku Kogyo Kk 制電性組成物およびその製造方法
JP2004317763A (ja) * 2003-04-16 2004-11-11 Kuraray Plast Co Ltd 帯電部材
JP2005002154A (ja) * 2003-06-10 2005-01-06 Kuraray Plast Co Ltd 高周波接着性に優れたシート、フィルムおよびその用途
JP2006117739A (ja) * 2004-10-20 2006-05-11 Sanwa Kako Co Ltd 帯電防止性架橋ポリオレフィン系発泡体及びその製造方法
JP2006165071A (ja) * 2004-12-02 2006-06-22 Achilles Corp 半導体製造テープ用帯電防止基材フィルム
JP2006219608A (ja) * 2005-02-10 2006-08-24 Prime Polymer:Kk ポリオレフィン系樹脂組成物および包装用フィルム
JP2006291170A (ja) * 2005-01-27 2006-10-26 Techno Polymer Co Ltd 制電性樹脂組成物および成形品
WO2007119339A1 (fr) * 2006-03-16 2007-10-25 Techno Polymer Co., Ltd. Composition de resine antistatique et article moule

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Publication number Priority date Publication date Assignee Title
JPH07251445A (ja) * 1994-03-14 1995-10-03 Nippon Petrochem Co Ltd 帯電防止性に優れた易引裂性ポリオレフィンフィルムおよびそれを用いた多層フィルム
JP2003277622A (ja) * 2002-03-25 2003-10-02 Sanko Kagaku Kogyo Kk 制電性組成物およびその製造方法
JP2004317763A (ja) * 2003-04-16 2004-11-11 Kuraray Plast Co Ltd 帯電部材
JP2005002154A (ja) * 2003-06-10 2005-01-06 Kuraray Plast Co Ltd 高周波接着性に優れたシート、フィルムおよびその用途
JP2006117739A (ja) * 2004-10-20 2006-05-11 Sanwa Kako Co Ltd 帯電防止性架橋ポリオレフィン系発泡体及びその製造方法
JP2006165071A (ja) * 2004-12-02 2006-06-22 Achilles Corp 半導体製造テープ用帯電防止基材フィルム
JP2006291170A (ja) * 2005-01-27 2006-10-26 Techno Polymer Co Ltd 制電性樹脂組成物および成形品
JP2006219608A (ja) * 2005-02-10 2006-08-24 Prime Polymer:Kk ポリオレフィン系樹脂組成物および包装用フィルム
WO2007119339A1 (fr) * 2006-03-16 2007-10-25 Techno Polymer Co., Ltd. Composition de resine antistatique et article moule

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010201924A (ja) * 2009-02-06 2010-09-16 Mitsubishi Plastics Inc 帯電防止フィルム
JP2020083957A (ja) * 2018-11-20 2020-06-04 三洋化成工業株式会社 帯電防止性樹脂組成物

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TW200831657A (en) 2008-08-01
CN101522783A (zh) 2009-09-02
JPWO2008041690A1 (ja) 2010-02-04
KR20090058007A (ko) 2009-06-08

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