EP3493999A1 - Nappe de renforcement pour des objets composés d'un matériau élastomère, de préférence pour des pneumatiques de véhicule, et pneumatique de véhicule - Google Patents
Nappe de renforcement pour des objets composés d'un matériau élastomère, de préférence pour des pneumatiques de véhicule, et pneumatique de véhiculeInfo
- Publication number
- EP3493999A1 EP3493999A1 EP17735117.8A EP17735117A EP3493999A1 EP 3493999 A1 EP3493999 A1 EP 3493999A1 EP 17735117 A EP17735117 A EP 17735117A EP 3493999 A1 EP3493999 A1 EP 3493999A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reinforcing layer
- dtex
- multifilament yarn
- fineness
- reinforcing
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/0042—Reinforcements made of synthetic materials
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/02—Carcasses
- B60C9/12—Carcasses built-up with rubberised layers of discrete fibres or filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
- B60C9/20—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
-
- 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
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/046—Reinforcing macromolecular compounds with loose or coherent fibrous material with synthetic macromolecular fibrous material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
- D02G3/045—Blended or other yarns or threads containing components made from different materials all components being made from artificial or synthetic material
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
- D02G3/28—Doubled, plied, or cabled threads
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/48—Tyre cords
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/693—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/02—Carcasses
- B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
- B60C2009/0416—Physical properties or dimensions of the carcass cords
- B60C2009/0425—Diameters of the cords; Linear density thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/02—Carcasses
- B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
- B60C2009/0416—Physical properties or dimensions of the carcass cords
- B60C2009/045—Tensile strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
- B60C9/02—Carcasses
- B60C9/04—Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
- B60C2009/0416—Physical properties or dimensions of the carcass cords
- B60C2009/0466—Twist structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C15/0628—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer
- B60C2015/0685—Physical properties or dimensions of the cords, e.g. modulus of the cords
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C15/0628—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer
- B60C2015/0692—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer characterised by particular materials of the cords
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
Definitions
- the invention relates to a rubberized reinforcing ply for articles of elastomeric material, preferably for pneumatic vehicle tires, the reinforcing ply having a plurality of parallel and spaced apart reinforcing members, each reinforcing member being at least one twisted one Multifilament yarn off
- the invention further relates to a pneumatic vehicle tire containing this
- Reinforcement layer Reinforcing layers for articles made of elastomeric material such as technical rubber products and pneumatic vehicle tires are of great importance and are generally known to the person skilled in the art.
- the reinforcing layers have a multiplicity of reinforcing, thread-like elements, the so-called reinforcements. These are completely embedded in elastomeric material. The strength element of this
- Reinforcing layers have, for example, the form of woven or calendered, endlessly wound reinforcements.
- the rubberized reinforcing layers of suitable size and design are joined together with other components to form a technical rubber product or a
- the rubberized reinforcement layers reinforce the product in question.
- strength carrier for the reinforcing layers of rubber products can be any material.
- HMLS polyester yarns For the carcass of car tires, so-called HMLS polyester yarns have established themselves as strength carriers. Such yarns are produced by spinning industrial polyester yarns under high tension and are characterized by a high modulus and low shrinkage (high modulus low shrinkage). In the carcass of passenger car tires, HMLS polyester multifilament yarns having a yarn denier (fineness) of 1440 dtex are frequently used. Yarns with this denier have a relatively large diameter. This has the disadvantage that the calendered layer thickness is increased in the tire. This in turn leads to a larger heat build-up during driving of the tire when these layers are exposed to flexing forces. This heat buildup leads to losses in the high speed performance and in the
- Multifilament yarns have a denier of 500 to 1000 D and a modulus of 105 to 120 mN / dtex.
- the invention has for its object to provide a rubberized reinforcing layer, which is further optimized with sufficient strength in terms of their heat buildup in the resulting rubber products.
- the object is achieved in that the multifilament yarn has an elongation at break of 10 to 20% according to ASTM D885-16, a crystallinity determined by DSC of 55 to 65% and a birefringence An of 0.21 ⁇ An ⁇ 0.25.
- multifilament yarn is meant a multifilament yarn which is twisted and thus has the construction xl as the strength support and which has already passed through the process of hot drawing incl. Impregnation.
- the reinforcing layer according to the invention fulfills the requirements for use in particular in vehicle tires, in particular with regard to breaking force, Young's modulus, fatigue resistance and elongation at break.
- the multifilament yarn for the reinforcement layer according to the invention is produced in such a way that a raw yarn is spun without any rotation, which is subsequently twisted in a twisting machine.
- the multifilament yarn is converted to a calendering fabric by following the steps known to those skilled in the art:
- the multifilament yarn has a yarn denier (fineness) in the range from 420 dtex to 1100 dtex.
- a yarn denier fineness
- particularly thin reinforcing layers can be realized in conjunction with the high maximum tensile force.
- advantages are obtained in terms of the fatigue properties of a pneumatic vehicle tire employing the reinforcing ply of the present invention as a carcass ply, and in terms of the processability of the reinforcing ply manufacturing.
- the multifilament yarn a yarn denier (fineness) in the range from 420 dtex to 1100 dtex.
- the multifilament yarn has an elongation at break according to ASTM D885-16 of 10 to 15%.
- a pneumatic vehicle tire with such a carcass ply reinforcement layer is more fatigue resistant, even under extreme conditions such as curbside contacts.
- the gummed reinforcing layer is between 1.0 mm * g / (m * cN) and 3.2 mm * g / (m * cN), the breaking force being determined according to ASTM D885-16.
- Reinforcing layers could be achieved in the use in the pneumatic vehicle tire particularly good results in terms of rolling resistance and high-speed capability. It is also advantageous if the reinforcement is a textile cord consisting of at least two polyethylene terephthalate multifilament yarns twisted together, which is preferably arranged in a density of at least 130 epdm in the reinforcement layer. "Epdm” means ends per decimeter and describes the cord density in the reinforcing ply, as is conventional in the art.
- the polyethylene terephthalate multifilament yarns have a twist of 395 tpm (turns per meter) to 620 tpm and if the textile cord has a final twist of 395 tpm to 620 tpm.
- the twist factor ⁇ should therefore be between 185 and 205.
- the multifilament yarns may be S- or Z- twisted, while the final twist is opposite to the multifilament yarn twist. Reinforcing layers with textile cords are particularly suitable
- the invention is solved with respect to the vehicle pneumatic tire by having a rubberized reinforcing layer as described above.
- the reinforcing layer is in particular a carcass and / or a bead reinforcement.
- the reinforcing layer is used as a carcass (carcass ply) for passenger car pneumatic tires.
- the reinforcing ply is a rubberized fabric having as a strength carrier textile cords of two mutually twisted polyethylene terephthalate multifilament yarns of construction 550 x 2 at a density of 175 epdm.
- the multifilament yarns each have a twist of 580 tpm and the respective textile cord has a final twist in the opposite direction of rotation of 580 tpm.
- the multifilament yarns have a fineness related
- Crystallinity was determined by differential scanning calorimetry (DSC) using a TA Instruments instrument, with 2 to 5 mg of the multifilament yarn heated at a heating rate of 10 K per minute, first from room temperature to 300 ° C in a first heating cycle, then from 300 ° C cooled to room temperature at 10 K per minute and then in a second heating cycle again from room temperature to 300 ° C. were heated at a heating rate of 10 K per minute.
- the crystallinity was determined from the heat of fusion of the polymer and reported as% crystallinity with respect to the heat of fusion of a 100% crystalline sample of the same material.
- the birefringence was determined with a polarizing microscope (Olympus BX50) with Berek compensator. The sample was placed diagonally in the instrument and, with clockwise and counter-clockwise rotation until the darkest appearance of the sample, the particular amount of rotation was determined. The difference of the rotation was divided by 2 to obtain a tilt angle. Based on a reference table was from
- Birefringence An (optical path difference ⁇ / thickness d), the birefringence was calculated, the thickness of the sample was determined by means of a Okularfadenmikrometers.
- the car tire equipped with this reinforcing ply as a carcass ply is characterized by a high-speed performance, and the rolling resistance could be reduced by about 2% compared with a tire having a conventional carcass ply.
- Table 1 below gives an overview of the parameters of PET textile cords of the aforementioned construction and the tires produced therefrom with the determined rolling resistance.
- a rolling resistance of 100% corresponds to the reference. Rolling resistances> 100% indicate a reduced (improved) rolling resistance, while rolling resistances ⁇ 100% indicate an increased (worsened) rolling resistance.
- Table 2 shows the properties of PET textile cords with identical cord construction (1100x2).
- the femizen-related maximum tensile force is higher, which is also reflected in the higher crystallinity and birefringence. This makes it possible to switch to thinner cord diameters.
- the width-related gum thickness is reduced in the reinforcing layer according to the invention.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Tires In General (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016214276.3A DE102016214276A1 (de) | 2016-08-02 | 2016-08-02 | Verstärkungslage für Gegenstände aus elastomerem Material, vorzugsweise für Fahrzeugluftreifen, und Fahrzeugluftreifen |
PCT/EP2017/066564 WO2018024424A1 (fr) | 2016-08-02 | 2017-07-04 | Nappe de renforcement pour des objets composés d'un matériau élastomère, de préférence pour des pneumatiques de véhicule, et pneumatique de véhicule |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3493999A1 true EP3493999A1 (fr) | 2019-06-12 |
Family
ID=59276766
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17735117.8A Ceased EP3493999A1 (fr) | 2016-08-02 | 2017-07-04 | Nappe de renforcement pour des objets composés d'un matériau élastomère, de préférence pour des pneumatiques de véhicule, et pneumatique de véhicule |
Country Status (5)
Country | Link |
---|---|
US (1) | US20190275837A1 (fr) |
EP (1) | EP3493999A1 (fr) |
CN (1) | CN109476184B (fr) |
DE (1) | DE102016214276A1 (fr) |
WO (1) | WO2018024424A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7430525B2 (ja) | 2019-12-13 | 2024-02-13 | 株式会社ブリヂストン | タイヤ |
WO2021133005A1 (fr) * | 2019-12-26 | 2021-07-01 | 코오롱인더스트리 주식회사 | Câble de pneu, son procédé de fabrication et pneu le comprenant |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0146084B2 (fr) * | 1983-12-12 | 1995-05-10 | Toray Industries, Inc. | Fibre d'alcool polyvinylique à ténacité ultra élevée et procédé pour sa fabrication |
US5149480A (en) * | 1990-05-18 | 1992-09-22 | North Carolina State University | Melt spinning of ultra-oriented crystalline polyester filaments |
US5733653A (en) * | 1996-05-07 | 1998-03-31 | North Carolina State University | Ultra-oriented crystalline filaments and method of making same |
EP0908329B1 (fr) | 1997-10-06 | 2003-04-02 | PIRELLI PNEUMATICI Società per Azioni | Tissu de renfort pour article caoutchouté et article correspondant comprenant untel tissu |
KR100571214B1 (ko) * | 1999-07-31 | 2006-04-13 | 주식회사 코오롱 | 타이어 코드용 폴리에스테르 멀티필라멘트사, 디프 코드 및 이들의 제조방법 |
US6511624B1 (en) * | 2001-10-31 | 2003-01-28 | Hyosung Corporation | Process for preparing industrial polyester multifilament yarn |
KR100464774B1 (ko) * | 2002-12-26 | 2005-01-05 | 주식회사 효성 | 타이어 코드용 라이오셀 멀티 필라멘트의 제조방법 및,이에 의해 제조된 라이오셀 멀티 필라멘트 |
CN101981240B (zh) * | 2008-03-31 | 2012-06-20 | 可隆工业株式会社 | 被拉伸的聚对苯二甲酸乙二醇酯(pet)纤维、pet轮胎帘线及包含pet轮胎帘线的轮胎 |
US9005754B2 (en) * | 2008-03-31 | 2015-04-14 | Kolon Industries, Inc. | Undrawn polyethylene terephthalate (PET) fiber, drawn PET fiber, and tire-cord comprising the same |
KR101205942B1 (ko) * | 2008-07-22 | 2012-11-28 | 코오롱인더스트리 주식회사 | 폴리에틸렌테레프탈레이트 타이어 코오드, 및 이를포함하는 타이어 |
US20130302610A1 (en) * | 2010-12-29 | 2013-11-14 | Kolon Industries, Inc. | Drawn poly(ethyleneterephthalate) fiber, a tire cord, and their preparation methods |
WO2014118082A1 (fr) * | 2013-01-29 | 2014-08-07 | Continental Reifen Deutschland Gmbh | Nappe de renforcement pour objets en matériau élastomère, de préférence pour pneumatiques de véhicules, et pneumatiques de véhicule |
CN104494169B (zh) * | 2014-11-21 | 2016-08-24 | 亚东工业(苏州)有限公司 | 一种低旦尼高模量聚酯帘子布的制备方法 |
-
2016
- 2016-08-02 DE DE102016214276.3A patent/DE102016214276A1/de active Pending
-
2017
- 2017-07-04 CN CN201780045394.4A patent/CN109476184B/zh active Active
- 2017-07-04 EP EP17735117.8A patent/EP3493999A1/fr not_active Ceased
- 2017-07-04 WO PCT/EP2017/066564 patent/WO2018024424A1/fr unknown
- 2017-07-04 US US16/319,359 patent/US20190275837A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CN109476184B (zh) | 2021-03-02 |
US20190275837A1 (en) | 2019-09-12 |
DE102016214276A1 (de) | 2018-02-08 |
CN109476184A (zh) | 2019-03-15 |
WO2018024424A1 (fr) | 2018-02-08 |
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