DE3642291A1 - NETWORKABLE, INSBES. SULFUR-VOLCANIZABLE RUBBER MIX - Google Patents
NETWORKABLE, INSBES. SULFUR-VOLCANIZABLE RUBBER MIXInfo
- Publication number
- DE3642291A1 DE3642291A1 DE19863642291 DE3642291A DE3642291A1 DE 3642291 A1 DE3642291 A1 DE 3642291A1 DE 19863642291 DE19863642291 DE 19863642291 DE 3642291 A DE3642291 A DE 3642291A DE 3642291 A1 DE3642291 A1 DE 3642291A1
- Authority
- DE
- Germany
- Prior art keywords
- rubber
- weight
- parts
- elastomer
- sulfur
- 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.)
- Withdrawn
Links
- 229920001971 elastomer Polymers 0.000 title claims description 38
- 239000005060 rubber Substances 0.000 title claims description 29
- 239000000203 mixture Substances 0.000 claims description 14
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 9
- 239000000806 elastomer Substances 0.000 claims description 9
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 7
- 244000043261 Hevea brasiliensis Species 0.000 claims description 6
- 229920003052 natural elastomer Polymers 0.000 claims description 6
- 229920001194 natural rubber Polymers 0.000 claims description 6
- 239000011324 bead Substances 0.000 claims description 5
- 239000006235 reinforcing carbon black Substances 0.000 claims description 5
- 229920001875 Ebonite Polymers 0.000 claims description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002174 Styrene-butadiene Substances 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 239000007859 condensation product Substances 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims 2
- 230000001070 adhesive effect Effects 0.000 claims 2
- 239000000306 component Substances 0.000 claims 1
- 239000006229 carbon black Substances 0.000 description 3
- 235000019241 carbon black Nutrition 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 229920005549 butyl rubber Polymers 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 description 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- DCXXMTOCNZCJGO-UHFFFAOYSA-N Glycerol trioctadecanoate Natural products CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229920003244 diene elastomer Polymers 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000012758 reinforcing additive Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
-
- 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
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
-
- 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
- B60C15/04—Bead cores
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Tires In General (AREA)
Description
Die Erfindung bezieht sich auf eine Kautschukmischung nach dem Oberbe griff des Anspruches 1.The invention relates to a rubber mixture according to the Oberbe handle of claim 1.
Das allgemeine Fahrverhalten eines Fahrzeugluftreifens und dessen Roll widerstand hängen heutzutage zum Teil zum einen von der Härte des Gummis des Wulstkernreiters sowie des Wulstscheuerstreifens und zum anderen von der Härte des Gummis der Laufstreifenunterplatte ab. Einen niedrigen Rollwiderstand und ein verbessertes allgemeines Fahr verhalten würde man erreichen, wenn es gelänge, die Härte des Gummiteils der vorgenannten Reifenbauteile bis in einen Bereich von 100° nach der Shore A Skala zu steigern. Es ist versucht worden, dies durch Verwendung von hohen Anteilen an verstärkenden Rußen zu erreichen. Solche Zusätze, die in verhältnismäßig großen Mengen zugesetzt werden müssen, sind inso weit problematisch, als in verfahrenstechnischer Hinsicht eine Grenze vorhanden ist, über die hinaus eine so hohe erforderliche Menge an ver stärkendem Ruß von der Kautschukmischung nicht mehr aufgenommen werden kann.The general driving behavior of a pneumatic vehicle tire and its rolling resistance nowadays depend partly on the hardness of the rubber of the bead apex and the bead scuff strip and on the other hand on the hardness of the rubber of the tread base plate. A low rolling resistance and an improved general driving behavior would be achieved if the hardness of the rubber part of the aforementioned tire components could be increased to a range of 100 ° according to the Shore A scale. Attempts have been made to achieve this by using high levels of reinforcing carbon blacks. Such additives, which must be added in relatively large amounts, are problematic in so far as there is a limit from a process engineering point of view beyond which such a large amount of sooting carbon black can no longer be absorbed by the rubber mixture.
Nach der DE-PS 36 00 427 ist es bekannt, einen Wulstkernreiter hoher Härte aus einer Kautschukmasse herzustellen, die pro 100 Gewichts teile Kautschuk, z.B. Naturkautschuk oder synthetischer Dien-Kautschuk oder Mischung aus diesen Kautschuken, 40 bis 120 Gewichtsteile Ruß so wie 5 bis 40 Gewichtsteile eines Novolakharzes und als dessen Härter ein Melaminderivat enthält. Gemäß Tabelle 2 wird eine Härte (HS) von 95 bis 98 bzw. 99 erreicht (Härte HS nach Japan Vorschrift).According to DE-PS 36 00 427 it is known to have a bead apex higher To produce hardness from a rubber mass per 100 weight parts rubber, e.g. Natural rubber or synthetic diene rubber or mixture of these rubbers, 40 to 120 parts by weight of carbon black like 5 to 40 parts by weight of a novolak resin and as its hardener contains a melamine derivative. According to Table 2, a hardness (HS) of 95 to 98 or 99 reached (hardness HS according to Japan regulation).
Nachteilig ist hierbei die Anwendung von hohen Anteilen Ruß, die zu ver fahrenstechnischen Schwierigkeiten in der Produktion führen, und die Anwendung von hohen Anteilen Phenolharz, durch die die Elastizitäts dehnung der Vulkanisate wesentlich verschlechtert wird. The disadvantage here is the use of high levels of soot, which ver driving difficulties in production, and the Application of high proportions of phenolic resin, through which the elasticity expansion of the vulcanizates is significantly deteriorated.
Die bekannte Kautschukmischung ist außerdem ungünstig durch Extrudieren und Kalandrieren zu verarbeiten.The known rubber mixture is also unfavorable due to extrusion and calendering.
Ziel der Erfindung ist es, verhältnismäßig harte Gummiteile aus Kautschukmischungen zu erhalten, die aus Verschnitt-Kautschukmischun gen herstellbar sind, die sowohl konfektionsklebrigkeitsfreundliche Komponenten als auch verstärkende, gut verarbeitbare Kautschukkompo nenten enthalten, ohne daß zugleich verhältnismäßig hohe Anteile an verstärkenden Rußen benötigt werden.The aim of the invention is to make relatively hard rubber parts Obtain rubber compounds that are made from blended rubber compounds gene producible, both ready-to-use tack Components as well as reinforcing, easily processable rubber compos nenten included, without at the same time relatively high shares reinforcing carbon blacks are needed.
Die technische Aufgabe der Erfindung besteht darin, auf der Grundlage einer Kautschukverschnittmischung aus Styrol- Butadien- Copolymeren und mindestens einem weiteren Elastomeren, insbes. Naturkautschuk, sowie einem verhältnismäßig niedrigen Anteil an verstärkendem Ruß und einem zusätzlichen Bindemittel eine gebrauchsfähige Kautschukmischung herzu stellen, die nach der Vulkanisation, insbes. nach der durch in Gegenwart von Schwefel herbeigeführten Vulkanisation, harte Gummiteile ergibt.The technical object of the invention is based on a rubber blend of styrene-butadiene copolymers and at least one other elastomer, in particular natural rubber, and a relatively low level of reinforcing carbon black and one a usable rubber mixture put after the vulcanization, esp. after by through in the present vulcanization caused by sulfur, hard rubber parts results.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß mindestens 10 Ge wichtsprozent einer Elastomerkomponente aus emulsions- oder lösungspoly merisiertem Styrol- Butadien- Copolymeren oder einer Copolymerverschnitt mischung vorliegen, bei der der gebundene Anteil an Styrol im Elastomeren molekül mindestens 45 Gewichtsprozent beträgt, und daß die weitere Elasto merenkomponente ein konfektionsklebrigkeitsfreundliches Elastomeres ist, wobei Naturkautschuk bevorzugt wird, daß etwa mind. 30 Gewichtsprozent Ruß vorliegen und daß diese Komponenten in Gegenwart von mindestens 5 An teilen pro 100 Kautschukanteilen eines Kondensationsproduktes aus einem ein- oder zweiwertigen Wasserstoff- Phenol und einem Formaldehyd ver netzbar bzw. vulkanisierbar sind.This object is achieved in that at least 10 Ge percent by weight of an elastomer component made of emulsion or solution poly merized styrene-butadiene copolymer or a copolymer blend Mixture are present in which the bound proportion of styrene in the elastomer Molecule is at least 45 percent by weight, and that the further elasto mer component is a ready-made tack-friendly elastomer, with natural rubber being preferred that about at least 30 percent by weight Soot is present and that these components in the presence of at least 5 An divide per 100 rubber parts of a condensation product from one mono- or divalent hydrogen phenol and a formaldehyde ver are wettable or vulcanizable.
Bevorzugt werden mindestens 10 Anteile pro 100 Teile Kautschuk des genann ten Kondensationsproduktes verwendet.At least 10 parts per 100 parts of rubber are preferred th condensation product used.
Hierdurch sind Gummiteile zu erhalten, die eine Shore A Härte von wenig stens 98° aufweisen. Diese sind bevorzugt für harte Kernringreiter so wie harte Wulstscheuerstreifen und für harte Unterplatten eines zwei schichtigen Laufstreifens (cap und base) zu verwenden.As a result, rubber parts can be obtained which have a Shore A hardness of at least 98 °. These are preferred for hard core ring riders such as hard chafing strips and for hard base plates of a two-layer tread (cap and base).
Eine vulkanisierbare Kautschukverschnittmischung in einer bevorzugten Ausführungsform nach der Erfindung besteht im wesentlichen ausA vulcanizable rubber blend blend in a preferred one Embodiment according to the invention consists essentially of
Naturkautschuk (NR)60 Teile pro 100 Kautschukteile Butylkautschuk (BR)20 Teile pro 100 Kautschukteile Styrol-Butadienkautschuk 1907 (SBR)20 Teile pro 100 Kautschukteile Ruß (HAF)65 Teile pro 100 Kautschukteile Phenol/Formaldehyd20 Teile pro 100 Kautschukteile Schwefel0,5 Teile pro 100 KautschukteileNatural rubber (NR) 60 parts per 100 rubber parts Butyl rubber (BR) 20 parts per 100 rubber parts Styrene-butadiene rubber 1907 (SBR) 20 parts per 100 rubber parts Carbon black (HAF) 65 parts per 100 rubber parts Phenol / formaldehyde 20 parts per 100 rubber parts Sulfur 0.5 parts per 100 rubber parts
Die Vulkanisate enthalten weitere übliche Zusätze, wie Zinkoxid, Stearin säure, Prozeßöl, Oxidationsschutzmittel, Ozonschutzmittel und Vulkanisa tionsbeschleunigungsmittel.The vulcanizates contain other conventional additives, such as zinc oxide and stearin Acid, process oil, antioxidants, antiozonants and Vulkanisa accelerator.
Die Shore A Härte dieses Vulkanisats beträgt 98° und sein Elastizitäts modul beträgt 8,8 MPa, gemessen bei Raumtemperatur.The Shore A hardness of this vulcanizate is 98 ° and its modulus of elasticity is 8.8 MPa, measured at room temperature.
Die Kautschukverschnittmischung ist gut verarbeitbar, enthält die ver stärkenden Zusätze in verhältnismäßig geringer Menge, ist verfahrens technisch nicht problematisch, und auf einfache Weise sind leicht harte Gummivulkanisate von nahezu 100° nach Shore A Härteskala zu erhalten.The rubber blend mixture is easy to process, contains the reinforcing additives in a relatively small amount, is not technically problematic, and easily hard rubber vulcanizates of almost 100 ° according to Shore A hardness scale can be obtained.
Claims (2)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863642291 DE3642291A1 (en) | 1986-12-11 | 1986-12-11 | NETWORKABLE, INSBES. SULFUR-VOLCANIZABLE RUBBER MIX |
| SE8704937A SE8704937L (en) | 1986-12-11 | 1987-12-10 | RETURNABLE, SPECIFIC SULFUL VULABLE RUBBER MIXTURE |
| IT22958/87A IT1223272B (en) | 1986-12-11 | 1987-12-11 | RETICULABLE RUBBER MIXTURE, PARTICULARLY VULCANIZABLE WITH SULFUR |
| FR8717294A FR2608164A1 (en) | 1986-12-11 | 1987-12-11 | RUBBER MIXTURE CROSSLINKABLE AND IN PARTICULAR VULCANIZABLE USING SULFUR |
| GB8729476A GB2213825A (en) | 1986-12-11 | 1987-12-17 | A cross-linkable, especially an S-vulcanisable, rubber mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863642291 DE3642291A1 (en) | 1986-12-11 | 1986-12-11 | NETWORKABLE, INSBES. SULFUR-VOLCANIZABLE RUBBER MIX |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3642291A1 true DE3642291A1 (en) | 1988-06-23 |
Family
ID=6315941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19863642291 Withdrawn DE3642291A1 (en) | 1986-12-11 | 1986-12-11 | NETWORKABLE, INSBES. SULFUR-VOLCANIZABLE RUBBER MIX |
Country Status (5)
| Country | Link |
|---|---|
| DE (1) | DE3642291A1 (en) |
| FR (1) | FR2608164A1 (en) |
| GB (1) | GB2213825A (en) |
| IT (1) | IT1223272B (en) |
| SE (1) | SE8704937L (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4163096A1 (en) * | 2021-10-08 | 2023-04-12 | Nokian Renkaat Oyj | A tire comprising a drop shaped bead core and method for the manufacture |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3232262B2 (en) * | 1997-05-30 | 2001-11-26 | 住友ゴム工業株式会社 | Heavy duty pneumatic tires |
| US7025103B2 (en) | 2000-02-21 | 2006-04-11 | Pirelli Pneumatici S.P.A. | Tire for a vehicle wheel having an antiabrasive band |
| AU2001246424A1 (en) * | 2000-02-21 | 2001-08-27 | Pirelli Pneumatici S.P.A. | Motor vehicle tyre with an antiabrasive band capable of reducing its rolling resistance |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE544015A (en) * | 1955-03-03 | |||
| GB947321A (en) * | 1959-08-13 | 1964-01-22 | Dunlop Rubber Co | Improvements relating to tyres for motor vehicles |
| GB1095782A (en) * | 1965-07-05 | 1967-12-20 | Internat Synthetic Rubber Comp | Tyre tread compounds |
| GB1184120A (en) * | 1966-11-03 | 1970-03-11 | Bridgestone Tire Co Ltd | A Rubbery, Vulcanizable Composition containing Hydrogenated Copolymers |
| US3526606A (en) * | 1966-11-24 | 1970-09-01 | Asahi Chemical Ind | Compositions comprising a block copolymer,rubber and a process oil |
| US4104334A (en) * | 1975-10-09 | 1978-08-01 | Phillips Petroleum Company | Rubber composition |
| GB1576424A (en) * | 1976-03-05 | 1980-10-08 | Dunlop Ltd | Beads for pneumatic tyres |
| JPS5945341A (en) * | 1982-09-09 | 1984-03-14 | Yokohama Rubber Co Ltd:The | Rubber composition for tire tread |
| EP0171935B1 (en) * | 1984-07-18 | 1990-10-24 | Bridgestone Corporation | Tread rubber composition |
| JPS61203145A (en) * | 1985-03-05 | 1986-09-09 | Bridgestone Corp | Rubber composition for tire tread |
| JPH0623269B2 (en) * | 1985-09-13 | 1994-03-30 | 株式会社ブリヂストン | High athletic performance tire with all-weather performance |
-
1986
- 1986-12-11 DE DE19863642291 patent/DE3642291A1/en not_active Withdrawn
-
1987
- 1987-12-10 SE SE8704937A patent/SE8704937L/en not_active Application Discontinuation
- 1987-12-11 FR FR8717294A patent/FR2608164A1/en active Pending
- 1987-12-11 IT IT22958/87A patent/IT1223272B/en active
- 1987-12-17 GB GB8729476A patent/GB2213825A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4163096A1 (en) * | 2021-10-08 | 2023-04-12 | Nokian Renkaat Oyj | A tire comprising a drop shaped bead core and method for the manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8729476D0 (en) | 1988-02-03 |
| IT1223272B (en) | 1990-09-19 |
| IT8722958A0 (en) | 1987-12-11 |
| SE8704937D0 (en) | 1987-12-10 |
| GB2213825A (en) | 1989-08-23 |
| FR2608164A1 (en) | 1988-06-17 |
| SE8704937L (en) | 1988-06-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |