WO2008075699A1 - 結晶性ポリアミド系樹脂組成物 - Google Patents
結晶性ポリアミド系樹脂組成物 Download PDFInfo
- Publication number
- WO2008075699A1 WO2008075699A1 PCT/JP2007/074393 JP2007074393W WO2008075699A1 WO 2008075699 A1 WO2008075699 A1 WO 2008075699A1 JP 2007074393 W JP2007074393 W JP 2007074393W WO 2008075699 A1 WO2008075699 A1 WO 2008075699A1
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- WO
- WIPO (PCT)
- Prior art keywords
- polyamide resin
- crystalline polyamide
- resin composition
- crystalline
- resin
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
- C08K3/013—Fillers, pigments or reinforcing additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- 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
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
-
- 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
- C08L51/06—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 homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/16—Use of special materials for parts of locks
- E05B15/1635—Use of special materials for parts of locks of plastics materials
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/0004—Lock assembling or manufacturing
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/02—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means
- E05C17/04—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing
- E05C17/12—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod
- E05C17/20—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod sliding through a guide
- E05C17/203—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by mechanical means with a movable bar or equivalent member extending between frame and wing consisting of a single rod sliding through a guide concealed, e.g. for vehicles
Definitions
- the present invention relates to a crystalline polyamide resin composition
- a crystalline polyamide resin composition comprising two types of crystalline polyamide resins having different relative viscosities, a modified thermoplastic elastomer and a modified polyolefin resin, and wollastonite.
- the composition of the present invention relates to a crystalline polyamide resin composition that is excellent in strength, rigidity, moldability and sliding durability. It is particularly suitable for mechanical parts that require sliding characteristics, such as door checkers and gears for automobiles. Background art
- solid lubricants are resins that have inherently excellent sliding properties, such as polyamide resins, and it is necessary to add a large amount of solid lubricants in order to further improve the sliding properties. It is economically preferable because it significantly reduces the toughness of the base polyamide resin, and if it can not meet the evaluation standards for molded parts for automobiles such as heat cycle, it contains a large amount of solid lubricant, which is very expensive. ! /
- a relatively small amount of liquid lubricant can impart highly effective slidability to resins such as engineering plastics, but in many cases the surface of a molded product that is poorly compatible with the base resin is the liquid lubricant. In many cases, these liquid lubricants, which are often contaminated with chemicals, have limited applications.
- the polyamide resin is improved in mechanical properties by using a polyamide resin having a significantly high molecular weight, and has low friction and low wear. It has been proposed to improve the sliding properties. Further, it is also described that a low molecular weight compound such as a higher fatty acid, a higher fatty acid ester, a higher fatty acid amide compound or the like is added as a moldability improving agent as required.
- Patent Document 1 Patent Document 2
- Non-patent document 1 Plastic course [16] Polyamide resin Nikkan Kogyo Shimbun (1970) Patent document 1: JP 2006-56983
- Patent Document 2 JP 2006-56984 Gazette
- the present invention retains high mechanical properties, particularly good impact resistance, even when a high-viscosity polyamide resin having a high molecular weight is used, and exhibits excellent sliding durability.
- An object of the present invention is to provide a polyamide-based resin composition having excellent moldability. Means for solving the problem
- the present invention provides (1) a crystalline polyamide resin (A) having a relative viscosity of 96% sulfuric acid solution of 3.5 or more (A) of 50 to 90% by weight and a crystalline polyamide resin (A). Melting point of 20 ° C or more Low crystalline polyamide resin (B) having a relative viscosity of 96% sulfuric acid solution of 3.6 or less 50 ⁇ ; crystalline polyamide resin composition comprising 10% by weight Polyamide with respect to 100 parts by weight A crystalline polyamide resin composition comprising a modified polyolefin resin (C) having a reactive functional group capable of reacting with a terminal group and / or a main chain amide group of the resin;! To 10 parts by weight.
- a crystalline polyamide resin composition comprising a modified polyolefin resin (C) having a reactive functional group capable of reacting with a terminal group and / or a main chain amide group of the resin;! To 10 parts by weight.
- the present invention provides excellent mechanical properties of crystalline polyamide resin, particularly excellent sliding durability without impairing impact resistance, heat resistance and chemical resistance, and crystals having good moldability.
- a functional polyamide-based resin composition can be provided. Therefore, it can be used in a wide range of fields as a mechanical part that requires mechanical strength and sliding characteristics, such as automobile parts, especially door checkers and gears, and contributes to the industry.
- the crystalline polyamide resin (B) having a relative viscosity of 3.6 or less is not particularly limited as long as it is a polymer having an amide bond (—NHCO 1) in the main chain and is crystalline!
- Nylon 6 NY6
- Nylon 66 NY66
- Nylon 46 NY46
- Nylon 11 NYl l
- Nylon 12 N Y12
- Nylon 610 ⁇ 610
- Nylon 612 NY612
- Metaxylylene Azinamide MXD6
- hexamethylenediamine-terephthalic acid polymer (6 ⁇ )
- hexamethylenediamine-terephthalic acid and adipic acid polymer 66 ⁇
- hexamethylenediamine-terephtalic acid and ⁇ -force prolatatam copolymer (6 ⁇ ) / 6
- TMD— ⁇ trimethylhexamethylene diamine-terephthalate
- MXD—6 / 1 trihexamethylene diamine with terephthalic acid
- TMD——— 6 crystalline polyamide resins
- diaminoethacrylate 6 ⁇
- metaxylylenediamine with adipic acid and isophthalic acid polymer MXD—6
- Nylon 66 is particularly preferable as the crystalline polyamide resin ( ⁇ ) of the present invention.
- the relative viscosity of the crystalline polyamide resin ( ⁇ ) of the present invention is particularly important. In general, when measuring the relative viscosity of a polyamide resin, depending on the type of solvent to be dissolved, there are three methods for measuring the solvent, metacresol, 96% sulfuric acid and 90% formic acid. The relative viscosity of ii) was measured with a 98% sulfuric acid solution (polyamide resin concentration lg / dl, temperature 25 ° C), and the relative viscosity was 3.5 or more. Particularly preferably 3.5 to 5.0 It is a range.
- nylon 6 is particularly preferable as the crystalline polyamide resin (B) of the present invention.
- the relative viscosity of the crystalline polyamide resin (B) was measured with a 98% sulfuric acid solution (polyamide resin concentration lg / dl, temperature 25 ° C), and the relative viscosity is 3.6 or less. Particularly preferred is the range of 2 ⁇ 0 to 3 ⁇ 6.
- the melting point of the crystalline polyamide resin can be determined by a differential scanning calorimeter (DSC). It is possible to know the melting point from the endothermic peak temperature at the time of temperature increase obtained with a differential scanning calorimeter.
- DSC differential scanning calorimeter
- the modified polyolefin resin (C) of the present invention is obtained by modifying the following polyolefin resin. That is, olefin-based resins such as high-density polyethylene, low-density polyethylene, ultrahigh molecular weight polyethylene, linear low-density polyethylene, polypropylene, poly (1-butene), and poly (4-methylpentene) can be used. Among these polyolefin resins, the most preferred is high density polyethylene.
- these polyolefin resins need to be provided with a reactive functional group capable of reacting with a terminal group and / or a main chain amide group of the polyamide resin.
- functional groups capable of reacting with a polyamide resin include carboxylic acid groups, acid anhydride groups, epoxy groups, oxadoline groups, amino groups, isocyanate groups, etc. 1S Among these, acid anhydride groups are Is particularly preferred because of its high reactivity.
- the amount of the modified polyolefin resin is 1 to 10 parts by weight per 100 parts by weight of the crystalline polyamide resin composition. Preferably !! ⁇ 8 parts by weight.
- an impact modifier and / or an inorganic filler may be added to the crystalline polyamide resin composition of the present invention as long as the object of the present invention is not impaired.
- the impact modifier include styrene / butadiene / styrene block copolymer (SBS), styrene / isoprene / styrene block copolymer (SIS), and styrene / ethylene.butylene / styrene block copolymer (SEBS).
- Styrene / ethylene / propylene / styrene block copolymer SEPS
- styrene / ethylene / amylene / styrene block copolymer bule SEPS
- styrene / ethylene / butylene copolymer HSBR
- Thermoplastic elastomer and ethylene / propylene block copolymer And olefin-based thermoplastic elastomers such as ethylene (propylene) and ethylene / propylene / gen copolymer (EPDM).
- SEBS is particularly preferred.
- a polyolefin resin known as low friction and low wear particularly polyethylene resin
- low friction and low wear particularly polyethylene resin
- an impact modifier and / or an inorganic filler may be added to the crystalline polyamide resin composition of the present invention as long as the object of the present invention is not impaired.
- the impact modifier include styrene / butadiene / styrene block copolymer (SBS), styrene / isoprene / styrene block copolymer (SIS), and styrene / ethylene.butylene / styrene block copolymer (SEBS).
- Styrene / ethylene / propylene / styrene block copolymer SEPS
- styrene / ethylene / amylene / styrene block copolymer bule SEPS
- styrene / ethylene / butylene copolymer HSBR
- thermoplastic elastomers and olefin-based thermoplastic elastomers such as ethylene / propylene block copolymers (EPR) and ethylene / propylene / gen copolymers (EPDM).
- EPR ethylene / propylene block copolymers
- EPDM ethylene / propylene / gen copolymers
- SEBS is particularly preferred.
- these impact resistance improvers are preferably provided with a reactive functional group capable of reacting with a terminal group and / or a main chain amide group of the polyamide resin.
- the functional group capable of reacting with the polyamide resin include a carboxylic acid group, an acid anhydride group, an epoxy group, an oxadoline group, an amino group, and an isocyanate group.
- an acid anhydride group is exemplified.
- Particularly preferred is high reactivity with the polyamide resin.
- inorganic filler talc, wollastonite, clay, alumina, kaolin, My strength Of these, wollastonite is particularly preferable.
- These inorganic fillers may be treated with an aminosilane coupling agent as a surface treatment agent in order to improve the adhesion to the polyamide resin.
- the crystalline polyamide resin composition of the present invention includes a heat stabilizer, an antioxidant, an ultraviolet inhibitor, a light stabilizer, a lubricant, a crystal nucleating agent, a release agent, a charging agent as necessary. Inhibitors, flame retardants, pigments and dyes can be added.
- the method for producing the crystalline polyamide resin composition of the present invention is not particularly limited, and as a kneading device, a general single screw extruder, a twin screw extruder, a pressure kneader, etc. However, in the present invention, a twin screw extruder is particularly preferred!
- the (A), (B), (C) and, if necessary, an impact-resistant agent, an inorganic filler, etc. are mixed, put into a twin-screw extruder, and mixed uniformly to obtain crystallinity.
- a polyamide-based resin composition can be produced.
- the kneading temperature is preferably set between the melting point of the crystalline polyamide resin (A) on the high melting point side and a temperature 50 ° C higher than the melting point, and the kneading time is 0.5 to 15; Minutes are preferred.
- the crystalline polyamide resin composition of the present invention is most suitable as a door checker component material for automobiles.
- Automotive door checkers must have mechanical strength and impact resistance, as well as sliding durability when opening and closing an automobile door more than 100,000 times. In particular, the door must be opened and closed smoothly with constant force with little friction and wear during repeated sliding, and mechanical characteristics that do not cause breakage or deformation when an abnormal force is applied are required. .
- the door checker has a metal-inserted part shape, so it is important to have close contact with metal parts and formability. Since the crystalline polyamide resin composition of the present invention can satisfy such severe requirements, it is optimal as a door checker material for automobiles.
- each raw material was weighed at the blending ratio of the crystalline polyamide resin composition shown in Table 1, mixed with a tumbler, and then put into a twin screw extruder.
- the set temperature of the twin screw extruder is 250 ° C to 300 ° C, and the mixing time is 5 to 10 minutes.
- the obtained pellets were molded into various evaluation samples with an injection molding machine.
- the cylinder temperature of the injection molding machine is 280 ° C ⁇ 300 ° C, and the mold temperature is 60 ° C.
- the relative viscosity of the polyamide resin was measured at a polyamide resin concentration of lg / dl using a 96 mass% sulfuric acid solution at 25 ° C using an Ubbelohde viscosity tube.
- Melt index (Ml) was measured at a temperature of 280 ° C, 2. Amount of resin flowing in 10 minutes at a load of 16 kgf. Considering this Ml value and the fluidity of spiral follow, the judgment of ⁇ and X of formability was made.
- the melting point of the polyamide resin was obtained by measuring the endothermic peak temperature at a rate of temperature increase of 20 ° C / min using a differential scanning calorimeter, Seiko Instruments EXSTAR 6000.
- Example 1 Example 2, Example 4, and Example 7 are compositions containing an impact resistance agent and an inorganic reinforcing agent. Formability, impact resistance, sliding durability, etc. are all good.
- Examples 3, 5, and 8 are compositions that do not contain impact agents and inorganic fillers. The evaluation criteria for force formability, impact resistance, and sliding durability are all included.
- Example 6 the composition in which the amount of the modified polyethylene added was increased. The moldability, impact resistance, and sliding durability were all good.
- Comparative Example 1 is a composition having a low relative viscosity RV of polyamide 66.
- the moldability is good.
- the sliding durability is inferior, and significant surface peeling occurs on the sliding surface.
- Comparative Example 2 is a force that is a composition having a high relative viscosity RV of polyamide 6.
- Comparative Example 3 and Comparative Example 5 are the compositions of a single system of polyamide 66 having a high relative viscosity. The force is inferior in moldability and the sliding durability can be evaluated.
- Comparative Example 4 is a low relative viscosity polyamide 66 single-system composition that has good fluidity and can be molded with force S, and the surface peeling of the sliding surface is severe, making it impossible to put it into practical use as a door checker. is there.
- Comparative Example 8 is a composition of polyamide 6 alone, but despite the high viscosity of the molding resin, molding was possible because the cylinder temperature of the molding machine was high. However, in the evaluation of sliding durability, the surface of the sliding surface was severely peeled off. The sliding surface becomes instantaneously hot due to frictional heat, but polyamide 6 has a relatively low melting point, so it is thought that the surface melted and led to surface peeling.
- the present invention provides an excellent mechanical property of a crystalline polyamide resin, particularly an excellent sliding durability without impairing impact resistance, heat resistance and chemical resistance, and a crystalline polyamide system having good moldability.
- a resin composition can be provided.
- the surface appearance changes little with tens of thousands of repeated slides at high loads, making it ideal as a door checker component for automobiles.
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
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Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007800455221A CN101553535B (zh) | 2006-12-20 | 2007-12-19 | 结晶聚酰胺类树脂组合物 |
JP2008550160A JP4867996B2 (ja) | 2006-12-20 | 2007-12-19 | 結晶性ポリアミド系樹脂組成物 |
US12/520,154 US8455587B2 (en) | 2006-12-20 | 2007-12-19 | Crystalline polyamide-type resin composition |
EP07850863.7A EP2123716B1 (en) | 2006-12-20 | 2007-12-19 | Crystalline polyamide based resin composition |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-342291 | 2006-12-20 | ||
JP2006342291 | 2006-12-20 |
Publications (1)
Publication Number | Publication Date |
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WO2008075699A1 true WO2008075699A1 (ja) | 2008-06-26 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2007/074393 WO2008075699A1 (ja) | 2006-12-20 | 2007-12-19 | 結晶性ポリアミド系樹脂組成物 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8455587B2 (ja) |
EP (1) | EP2123716B1 (ja) |
JP (1) | JP4867996B2 (ja) |
CN (1) | CN101553535B (ja) |
WO (1) | WO2008075699A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013543906A (ja) * | 2010-10-29 | 2013-12-09 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | ポリアミド複合構造体及びその製造方法 |
JPWO2015174488A1 (ja) * | 2014-05-16 | 2017-04-20 | 東洋紡株式会社 | 結晶性ポリアミド系樹脂組成物 |
JP2018197316A (ja) * | 2017-05-24 | 2018-12-13 | ユニチカ株式会社 | ポリアミド樹脂組成物およびそれを成形してなる成形体 |
WO2020235443A1 (ja) | 2019-05-20 | 2020-11-26 | 東洋紡株式会社 | 射出成形用ポリアミド系樹脂組成物、及びそれからなる摺動部品 |
WO2021060030A1 (ja) * | 2019-09-27 | 2021-04-01 | 東洋紡株式会社 | 摺動部品用ポリアミド樹脂組成物、及び摺動部品 |
JPWO2021157606A1 (ja) * | 2020-02-05 | 2021-08-12 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114031836B (zh) * | 2021-12-13 | 2022-05-27 | 广东安拓普聚合物科技有限公司 | 一种耐低温阻燃聚乙烯材料及其制备方法和应用 |
CN114591622B (zh) * | 2022-03-30 | 2023-08-11 | 江苏金发科技新材料有限公司 | 一种聚酰胺聚丙烯合金材料及其制备方法与应用 |
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Cited By (10)
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JP2013543906A (ja) * | 2010-10-29 | 2013-12-09 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | ポリアミド複合構造体及びその製造方法 |
JPWO2015174488A1 (ja) * | 2014-05-16 | 2017-04-20 | 東洋紡株式会社 | 結晶性ポリアミド系樹脂組成物 |
JP2018197316A (ja) * | 2017-05-24 | 2018-12-13 | ユニチカ株式会社 | ポリアミド樹脂組成物およびそれを成形してなる成形体 |
WO2020235443A1 (ja) | 2019-05-20 | 2020-11-26 | 東洋紡株式会社 | 射出成形用ポリアミド系樹脂組成物、及びそれからなる摺動部品 |
KR20220011131A (ko) | 2019-05-20 | 2022-01-27 | 도요보 가부시키가이샤 | 사출 성형용 폴리아미드계 수지 조성물, 및 그것으로 이루어진 슬라이딩 부품 |
WO2021060030A1 (ja) * | 2019-09-27 | 2021-04-01 | 東洋紡株式会社 | 摺動部品用ポリアミド樹脂組成物、及び摺動部品 |
JP6872155B1 (ja) * | 2019-09-27 | 2021-05-19 | 東洋紡株式会社 | 摺動部品用ポリアミド樹脂組成物、及び摺動部品 |
JPWO2021157606A1 (ja) * | 2020-02-05 | 2021-08-12 | ||
WO2021157606A1 (ja) * | 2020-02-05 | 2021-08-12 | 宇部興産株式会社 | ポリアミド樹脂組成物 |
JP7310942B2 (ja) | 2020-02-05 | 2023-07-19 | Ube株式会社 | ポリアミド樹脂組成物 |
Also Published As
Publication number | Publication date |
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EP2123716B1 (en) | 2016-08-24 |
US8455587B2 (en) | 2013-06-04 |
EP2123716A1 (en) | 2009-11-25 |
CN101553535B (zh) | 2012-05-23 |
JP4867996B2 (ja) | 2012-02-01 |
CN101553535A (zh) | 2009-10-07 |
US20100093936A1 (en) | 2010-04-15 |
JPWO2008075699A1 (ja) | 2010-04-15 |
EP2123716A4 (en) | 2011-06-29 |
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