WO2006129452A1 - ジョイントブーツ - Google Patents
ジョイントブーツ Download PDFInfo
- Publication number
- WO2006129452A1 WO2006129452A1 PCT/JP2006/309291 JP2006309291W WO2006129452A1 WO 2006129452 A1 WO2006129452 A1 WO 2006129452A1 JP 2006309291 W JP2006309291 W JP 2006309291W WO 2006129452 A1 WO2006129452 A1 WO 2006129452A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- acrylic rubber
- polyamide
- thermoplastic elastomer
- joint boot
- meth
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
Links
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
- 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
- C08L23/16—Ethylene-propylene or ethylene-propylene-diene copolymers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
- F16D3/843—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
- F16D3/845—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers allowing relative movement of joint parts due to the flexing of the cover
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J3/00—Diaphragms; Bellows; Bellows pistons
- F16J3/04—Bellows
- F16J3/041—Non-metallic bellows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J3/00—Diaphragms; Bellows; Bellows pistons
- F16J3/04—Bellows
- F16J3/041—Non-metallic bellows
- F16J3/043—Non-metallic bellows with particular means for limiting wear
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
- C08L2666/04—Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
- C08L2666/14—Macromolecular compounds according to C08L59/00 - C08L87/00; Derivatives thereof
- C08L2666/20—Macromolecular compounds having nitrogen in the main chain according to C08L75/00 - C08L79/00; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0034—Materials; Production methods therefor non-metallic
- F16D2200/0056—Elastomers
Definitions
- the present invention relates to a joint boot. More particularly, the present invention relates to a joint boot molded using a thermoplastic elastomer excellent in heat resistance.
- a universal joint is attached to a drive shaft for an automobile on the engine side and the wheel side, and a joint boot as a joint cover covers the joint in order to keep the grease in the joint. Attached to!
- the joint boot may be used at high speed rotation, may be used in a bent or bent state, and in a cryogenic temperature range by being provided on a drive shaft.
- Patent Document 1 Japanese Patent Application Laid-Open No. 9-037802
- Patent Document 3 Japanese Patent Application Laid-Open No. 1-306456
- An object of the present invention is to provide a joint boot molded using a thermoplastic elastomer. It is an object of the present invention to provide one which can fully satisfy the heat resistance required even when used on the inboard side.
- the object of the present invention is achieved by a joint boot molded using an acrylic rubber Z-polyamide thermoplastic elastomer comprising a polyamide resin and a crosslinked acrylic rubber.
- Acrylic rubber Z polyamide-based thermoplastic elastomer one in which rubber is dispersed in polyamide resin by dynamically crosslinking acrylic rubber, preferably one in which polyamide resin and acrylic rubber are covalently crosslinked. Is used.
- the joint boot according to the present invention has excellent low temperature and high temperature durability and excellent grease resistance, and in particular, excellent temperature resistance at 150 ° C., high temperature at high temperature and grease resistance.
- inboard side engine side
- thermoplastic elastomer due to the material properties of the thermoplastic elastomer used, it is also satisfactory in terms of oil resistance, moldability, flex resistance, crack growth resistance, compressive elongation strain resistance, weather resistance, ozone resistance, etc. .
- a polyamide-based thermoplastic elastomer in which a crosslinked acrylic rubber used in the present invention is dispersed is dispersed.
- the rubber is dispersed in a polyamide resin by dynamically crosslinking the acrylic rubber with a crosslinking agent.
- those obtained by covalently crosslinking polyamide resin and acrylic rubber are used.
- Polyamide ⁇ the total amount of 20 to 60 weight 0/0 of polyamide ⁇ the crosslinked acrylic rubber, the preferable properly used in a proportion of 20 to 55 wt%.
- the polyamide resin is used in a larger amount, the hardness becomes higher and the elastomeric property is lost, while when the polyamide resin is used in a smaller amount, the thermoplasticity is lost.
- nylon resins such as nylon 3, nylon 4, nylon 6, nylon 7, nylon 8, nylon 42, nylon 46, nylon 66, nylon 69, nylon 6 10, Resins with softening points or melting points of 160 ° C to 280 ° C, such as nylon 11, nylon 12, nylon 6 66 (force proratatam-hexamethylene adipamide copolymer), alone or in combination or in combination Coalescing can be used.
- covalently crosslinked acrylic rubber covalent crosslinking with polyamide resin is about 100 to 350 ° C, preferably about 150 to 300 °, as described in Patent Documents 2 and 3 above.
- the heat-resistant a-olefin-alkyl (meth) atarylate copolymer is preferably used because it is C, more preferably dynamic crosslinking under heating conditions of about 180 to 280 ° C.
- homopolymers or copolymers of alkyl (meth) atalylate or alkoxy alkyl (meth) atalylate, copolymers of these with ⁇ -olefin, and various polymers of these. Polymer blends and the like are also suitably used.
- ⁇ -olefin ethylene, propylene, butene-1, isobutylene, pentene, heptene, otaten, decene, decene, etc.
- ⁇ -olefin of C to C is used, and preferred
- C to C ⁇ -olefin is used.
- alkyl (meth) atarylates are used.
- C to C alkyl groups such as methyl ate thallate, ethyl atalylate, ⁇ -butyl atalylate, tert-butyl atalylate, 2-ethyl ytyl atalylate, octy atalylate, decyl atalylate, dodecyl atalylate, etc.
- an alkyl group having a C to C alkyl group is used.
- a metatarylate having a 1 12 14 kill group is used.
- alkoxyalkyl (meth) atalylates include methoxyethyl atalylate, ethoxy ethyl atalylate, methoxybutyl atalylate, ethoxybutyl atalylate, methoxyethyl methacrylate, ethoxyethyl methacrylate, and methoxy.
- Alkoxyalkyl (meth) atalylate having an 1 c anoleco 2 xyl group and a C to C alkyl group is used
- copolymers further contain a crosslinkable group-containing group having a carboxyl group, a hydroxyl group, a chlorine group, an epoxy group, a diene group, an isocyanato group, an amine group, an amido group, an oxazoline group, etc.
- a crosslinkable group-containing (meth) atarylates preferred to copolymerize atarylates, alkyl (meth) atarylates (and alkoxyalkyl (meth) atalylates) are generally used as the main component. Those used for acrylic rubber are used as they are.
- Such a crosslinkable group-containing (meth) a was further copolymerized Atari rate - Orefuin - in the case of Al-Kill (meth) Atari Rate copolymer, alpha - Orefin the 10 to 69.9 mole 0 / 0, alkyl Le (meth) Atari rates from 29.6 to 89.5 mole 0/0, and crosslinking group-containing (meth) is used having the composition Atari rates by polymerizing 0.5 to 0 mol% co, the force mowing co
- the polymer is essentially non-crystalline and has a glass transition temperature, Tg, below room temperature.
- Non-Patent Document 1 an example of such an acrylic rubber copolymer is also described in Non-Patent Document 1 below.
- the crosslinkable group-containing (meth) atalylate is 0.5 to 10 mol%, and the remaining is any of the alkyl (meth) atalylate and the alkoxyalkyl (meth) atalylate.
- Those having a copolymer composition of the following are used.
- ethylene-maleic acid monoalkyl ester copolymer and the like can also be used.
- Non-Patent Document 1 Rubber World Blue Book, pages 393-4 (1987)
- the covalent crosslinking of the polyamide resin and the acrylic rubber copolymer is carried out by crosslinking agents corresponding to the type of the crosslinkable group in the acrylic rubber copolymer, such as polyols, polyamines, polyisocyanates, and epoxy group-containing compounds. It is carried out by a dynamic crosslinking method in which a polyamide resin and an acrylic copolymer are melt mixed at the above-mentioned temperature in the presence of H, etc., generally, a method of adding a crosslinking agent while masticating with a twin screw kneader.
- acrylic rubber is sufficiently vulcanized by either a dynamic or static method without crushing with polyamide resin, and then crushed and crushed by the following method.
- examples thereof include a method of mixing with polyamide resin at a temperature above the melting point or soft softening point of the polyamide resin.
- the acrylic rubber Z polyamide-based thermoplastic elastomer I thus obtained is obtained, for example, by immersing a pressed film thereof (about 0.2 mm thick) in an organic solvent such as dichloromethane, toluene, tetrahydrofuran or the like for 48 hours 50% or more, preferably 30% or more of it has a cross-linking density not to be extracted. Further, in this acrylic rubber Z polyamide type thermoplastic elastomer, it is also possible to add a plasticizer or filler which is generally used such as phthalic acid ester, phosphoric acid ester, carbon black, silica and the like. .
- a striking acrylic rubber Z polyamide-based thermoplastic elastomer can be produced by the method described above.
- products of the same type in which only covalent cross-linking of acrylic rubber and polyamide is not performed are commercially available products, for example, products manufactured by ZEON CHEMICALS. The eotherm series etc can be used as it is.
- additives such as an antioxidant, a stabilizer, a tackifier, a mold release agent, a pigment, a flame retardant and the like can be added to the composition of the present invention. Furthermore, in order to improve the strength and the rigidity, a particulate reinforcing component or a short fiber may be added.
- the composition is prepared by mixing using a known mixing method such as a twin-screw extruder, a Cincinnati, Ohio, a Duplex, a Duplex, a Duplex, a Duplex, a Duplex, a Duplex, a Duplex, a Duplex, a Duplex, a Duplex, a Duplex, a Duplex, a Duplex, a Duplex, a Duplex, a Duplex, a Duplex, a stymer, etc.
- blow molding injection molding, compression molding, extrusion molding, etc.
- blow molding is preferably used because the material physical properties are less anisotropic.
- Heat at 280 ° C. for about 1 to 10 minutes, and appropriately perform in a plasticized state of the material.
- Acrylic rubber Z Polyamide thermoplastic elastomer 1 (Zeon Chemical product Zeotherm 100-90B pellet) is dried at 100 ° C for 5 hours and then plasticized by heating at 260 ° C for 3 minutes using an injection molding machine Test pieces (100 ⁇ 100 ⁇ 2 mm) were produced. In addition, using a blow molding machine, plasticization was performed by heating at 260 ° C. for 3 minutes to form a joint boot. Material pellet, test piece and molded product were used to evaluate the functional materials for melting point, hardness, low temperature durability, grease resistance and high temperature durability.
- the material pellet is sampled and measured using a DSC made by Seiko Instruments Inc. Hardness (Type D): JIS K6253 compliant
- the type D durometer indicates 55 or more, it is not preferable as a joint boot material.
- materials that have brittle temperatures below 50 ° C are suitable for boots, and materials with temperatures higher than -50 ° C and those that have brittle temperatures are used as boots. Is insufficient
- Grease resistance Immerse the test piece in grease and measure the volume expansion after immersion for 70 hours at 150 ° c . It was measured
- High-temperature durability Attach a boot filled with a specified amount of grease to a constant velocity joint, set it on the rotational endurance tester of the constant velocity joint boot, fix the joint angle to 0 °, under an environment of 150 ° C. The rotation speed was gradually increased by 3000 rpm and the Z shape was observed visually for the boot shape.
- the boot is expanded by rotation due to the centrifugal force.
- abnormal deformation occurs in the boot at a certain rotation speed or more, and when abnormal deformation occurs, the boot contacts the other automobile parts etc. in actual use and instantaneously
- the number of revolutions to abnormal deformation was measured as an indicator of high temperature durability because
- Example 1 as the acrylic rubber / polyamide thermoplastic elastomer, cold resistant acrylic rubber mainly composed of extruded grades of 6-nylon, n-butyl atalilate, and 2-methoxyacetyl atalilate Those prepared by the method of dynamically crosslinking with a twin-screw extruder so as to covalently bond them were used.
- the compounding ratio (weight ratio 35 to 45: 65 to 55) of 6-nylon and acrylic resin is different, and in Example 3, the rubber ratio of acrylic rubber is increased and used. Ru.
- Example 1 in place of the acrylic rubber Z polyamide-based thermoplastic elastomer, a polyester thermoplastic elastomer (DMS company product-tel PB582-H) was used.
- DMS company product-tel PB582-H polyester thermoplastic elastomer
- Example 1 instead of the acrylic rubber Z polyamide-based thermoplastic elastomer H, a polyamide-based thermoplastic elastomer E (Demylon's product DARION ELX50HNZ) is used. Comparative Example 3
- Example 1 instead of the acrylic rubber Z polyamide-based thermoplastic elastomer, a polyester thermoplastic elastomer (Toray 'Dupont product Hytrel 4767B) was used.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Diaphragms And Bellows (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Sealing Devices (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007518884A JPWO2006129452A1 (ja) | 2005-06-02 | 2006-05-09 | ジョイントブーツ |
| DE112006001306T DE112006001306T5 (de) | 2005-06-02 | 2006-05-09 | Gelenkmanschette |
| US11/921,482 US20090105421A1 (en) | 2005-06-02 | 2006-05-09 | Joint Boot |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005-162182 | 2005-06-02 | ||
| JP2005162182 | 2005-06-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006129452A1 true WO2006129452A1 (ja) | 2006-12-07 |
Family
ID=37481384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2006/309291 Ceased WO2006129452A1 (ja) | 2005-06-02 | 2006-05-09 | ジョイントブーツ |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20090105421A1 (ja) |
| JP (1) | JPWO2006129452A1 (ja) |
| KR (1) | KR20070102500A (ja) |
| CN (1) | CN101189457A (ja) |
| DE (1) | DE112006001306T5 (ja) |
| WO (1) | WO2006129452A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010513580A (ja) * | 2006-12-13 | 2010-04-30 | ビーエーエスエフ ソシエタス・ヨーロピア | アクリレートゴムを含むポリアミド |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8088015B2 (en) * | 2007-11-01 | 2012-01-03 | Gkn Driveline North America, Inc. | Self-repairing boot for a constant velocity joint |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005083439A (ja) * | 2003-09-05 | 2005-03-31 | Fukoku Co Ltd | フレキシブルブーツ |
| WO2005042624A1 (ja) * | 2003-10-31 | 2005-05-12 | Zeon Corporation | 熱可塑性エラストマー組成物及び成形品 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5591798A (en) * | 1988-04-11 | 1997-01-07 | Advanced Elastomer Systems, L.P. | High temperature stable, low solvent swelling thermoplastic elastomer compositions |
-
2006
- 2006-05-09 WO PCT/JP2006/309291 patent/WO2006129452A1/ja not_active Ceased
- 2006-05-09 JP JP2007518884A patent/JPWO2006129452A1/ja not_active Withdrawn
- 2006-05-09 US US11/921,482 patent/US20090105421A1/en not_active Abandoned
- 2006-05-09 DE DE112006001306T patent/DE112006001306T5/de not_active Withdrawn
- 2006-05-09 KR KR1020077014627A patent/KR20070102500A/ko not_active Ceased
- 2006-05-09 CN CNA2006800196186A patent/CN101189457A/zh active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005083439A (ja) * | 2003-09-05 | 2005-03-31 | Fukoku Co Ltd | フレキシブルブーツ |
| WO2005042624A1 (ja) * | 2003-10-31 | 2005-05-12 | Zeon Corporation | 熱可塑性エラストマー組成物及び成形品 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010513580A (ja) * | 2006-12-13 | 2010-04-30 | ビーエーエスエフ ソシエタス・ヨーロピア | アクリレートゴムを含むポリアミド |
| KR101368128B1 (ko) | 2006-12-13 | 2014-02-27 | 바스프 에스이 | 폴리아미드와 아크릴레이트 고무 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101189457A (zh) | 2008-05-28 |
| KR20070102500A (ko) | 2007-10-18 |
| US20090105421A1 (en) | 2009-04-23 |
| JPWO2006129452A1 (ja) | 2008-12-25 |
| DE112006001306T5 (de) | 2008-04-17 |
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