WO2015091183A1 - Pneumatique comportant un stratifie multicouche - Google Patents
Pneumatique comportant un stratifie multicouche Download PDFInfo
- Publication number
- WO2015091183A1 WO2015091183A1 PCT/EP2014/077321 EP2014077321W WO2015091183A1 WO 2015091183 A1 WO2015091183 A1 WO 2015091183A1 EP 2014077321 W EP2014077321 W EP 2014077321W WO 2015091183 A1 WO2015091183 A1 WO 2015091183A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer
- cbpa
- elastomer
- diene
- tire
- Prior art date
Links
Classifications
-
- 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
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/042—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
-
- 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
- C08L9/06—Copolymers with styrene
-
- 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
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/02—Layered products comprising a layer of natural or synthetic rubber with fibres or particles being present as additives in the layer
-
- 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
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/14—Layered products comprising a layer of natural or synthetic rubber comprising synthetic rubber copolymers
-
- 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
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/16—Layered products comprising a layer of natural or synthetic rubber comprising polydienes homopolymers or poly-halodienes homopolymers
-
- 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
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0008—Compositions of the inner liner
-
- 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
- B32B2605/00—Vehicles
-
- 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
- B60C5/00—Inflatable pneumatic tyres or inner tubes
- B60C5/12—Inflatable pneumatic tyres or inner tubes without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim
- B60C5/14—Inflatable pneumatic tyres or inner tubes without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim with impervious liner or coating on the inner wall of the tyre
- B60C2005/145—Inflatable pneumatic tyres or inner tubes without separate inflatable inserts, e.g. tubeless tyres with transverse section open to the rim with impervious liner or coating on the inner wall of the tyre made of laminated layers
Definitions
- the present invention relates to laminates for tires comprising a thermoplastic elastomer layer and a diene layer.
- the various elastomeric layers consist of diene elastomer compositions, adhering to each other by interdiffusion and creation of bonds during the crosslinking of said elastomers. These layers must be associated before baking (or crosslinking) to allow their adhesion.
- elastomeric layers comprising, as elastomers, predominantly thermoplastic elastomers (TPE) in order to benefit from the properties of these elastomers, especially for reduced rolling resistance and ease of implementation.
- the difficulty of using such layers, whose elastomers are predominantly TPE, is their adhesion to adjacent diene layers of conventional composition, and this before the resulting laminate baking or after baking the adjacent layer to the layer whose elastomers are predominantly TPE.
- the Applicants have previously described laminates for a tire comprising a layer whose elastomers are mainly specific thermoplastic elastomers (TPE), polystyrene block copolymers and polyisobutylene, for example in the document WO2010 / 063427 .
- the layer mainly composed of polystyrene and polyisobutylene block copolymers can adhere to a diene layer by the presence of an intermediate specific adhesive layer, comprising a particular thermoplastic elastomer (TPE), styrenic block copolymer and elastomeric block unsaturated. If effective, the resulting laminate is applicable only to a particular example of TPE.
- the document EP 1 987 962 describes adhesion of a so-called "thermoplastic elastomer” layer and of a diene layer, thanks to an adhesive layer comprising a particular thermoplastic elastomer (TPE), styrenic block copolymer and with unsaturated elastomeric block.
- TPE thermoplastic elastomer
- the so-called elastomer layer thermoplastic is not a layer mainly composed of TPE but a layer composed of a mixture of nylon-type thermoplastic resin on the one hand and a brominated butyl-type elastomer on the other hand.
- thermoplastic elastomer layers on diene layers, without the need for a layer of adhesion. This allows in particular the simplification of the tire laminates.
- thermoplastic elastomer allows a satisfactory adhesion to the adjacent diene layers, and significantly improved compared to the adhesion of other thermoplastic elastomer layers on the diene layers.
- the invention therefore relates to a tire comprising an elastomeric laminate, said laminate comprising at least two superposed layers of elastomer: o a first layer or layer of aromatic polyester block copolymer (CBPA), consisting of a composition based on at least one aromatic polyester block copolymer thermoplastic elastomer (CBPA), the content of aromatic polyester block copolymer (CBPA) being in a range from more than 50 to 100 phr (parts by weight per 100 parts by weight). elastomer weight);
- CBPA aromatic polyester block copolymer
- a second layer or diene layer consisting of a composition based on at least one diene elastomer, the content of diene elastomer being in a range from more than 50 to 100 phr.
- the first layer or CBPA layer has excellent adhesion with the second layer, or diene layer of the tire of the invention.
- the invention is very simple since it allows the adhesion of a layer composed mainly of a specific thermoplastic elastomer (TPE), the thermoplastic elastomer CBPA, to a diene layer, by dispensing with the need for a specific layer for adhesion between the thermoplastic elastomer layers and the diene layers.
- TPE thermoplastic elastomer
- CBPA thermoplastic elastomer
- the invention relates to a tire as defined above, wherein the elastomeric block of the polyester block copolymer thermoplastic elastomer
- the aromatic layer (CBPA) of the first layer is selected from the group consisting of polyethers, aliphatic polyesters, polycarbonates and mixtures thereof.
- the aromatic polyester block copolymer thermoplastic elastomer (CBPA) of the first layer is selected from the group consisting of aromatic polyester and polyether copolymers and mixtures thereof.
- the aromatic polyester block copolymer thermoplastic elastomer (CBPA) of the first layer is selected from the group consisting of aromatic polyester and aliphatic polyether copolymers and mixtures thereof.
- the invention relates to a tire as defined above, wherein the number-average molecular weight of CBPA is preferably between 15,000 and 500,000 g / mol.
- the invention relates to a tire as defined above, wherein the aromatic polyester block copolymer thermoplastic elastomer (CBPA) of the first layer has a glass transition temperature ("Tg") which is lower than or equal to 25 ° C, more preferably less than or equal to 10 ° C.
- Tg glass transition temperature
- the invention relates to a tire as defined above, wherein the melting temperature (Tf) of the CBPA copolymer is between 140 ° C and 210 ° C.
- the invention relates to a tire as defined above, in which the level of copolymer CBPA in the composition of the first layer is in a range from 70 to 100 phr, preferably from 80 to 100 phr. to 100 pce. More preferably, the CBPA copolymer is the only elastomer of the first layer.
- the invention relates to a tire as defined above, wherein the first layer does not contain a crosslinking system.
- the invention relates to a tire as defined above, wherein the diene elastomer of the second layer is selected from the group consisting of essentially unsaturated diene elastomers, and mixtures of these elastomers; more preferably in the group consisting of homopolymers obtained by polymerization of a conjugated diene monomer having from 4 to 12 carbon atoms, copolymers obtained by copolymerization of one or more conjugated dienes with one another or with one or more vinyl aromatic compounds having from 8 to 20 atoms of carbon, and mixtures thereof.
- the invention relates more particularly to the tires as defined above, intended to equip vehicles without engines such as bicycles, or tourism-type motor vehicles, SUV ("Sport Utility Vehicles"), two wheels (including motorcycles), aircraft, such as industrial vehicles chosen from light trucks, "heavy goods vehicles” - that is, metros, buses, road transport vehicles (trucks, tractors, trailers), off-the-road vehicles such as agricultural or civil engineering goods -, other transport or handling vehicles.
- SUV Sport Utility Vehicles
- two wheels including motorcycles
- aircraft such as industrial vehicles chosen from light trucks, "heavy goods vehicles” - that is, metros, buses, road transport vehicles (trucks, tractors, trailers), off-the-road vehicles such as agricultural or civil engineering goods -, other transport or handling vehicles.
- thermoplastic elastomers TPE are part of the elastomers.
- any range of values designated by the expression “between a and b” represents the range of values from more than a to less than b (that is to say terminals a and b excluded).
- any range of values designated by the expression “from a to b” signifies the range of values from a to b (that is to say, including the strict limits a and b).
- the term "diene layer” an elastomeric layer comprising, by weight, a larger amount of elastomer (s) diene (s) than elastomer (s) other than diene, such as thermoplastic elastomers.
- the tire according to the invention has excellent adhesion between the CBPA layer (first layer) and the diene layer (second layer).
- the details of the invention will be explained below, in a first step by the description of the tire laminate of the invention, then by the description of the adhesion between the layers and the use of the laminate of the invention. pneumatic according to the invention.
- the multilayer laminate tire of the invention therefore has the essential feature of comprising at least two superposed layers of elastomer: o a first layer or layer of aromatic polyester block copolymer (CBPA), consisting of a composition based on at least one aromatic polyester block copolymer thermoplastic elastomer (CBPA), the content of aromatic polyester block copolymer (CBPA) being in a range from more than 50 to 100 phr (parts by weight for 100 parts by weight of elastomer);
- CBPA aromatic polyester block copolymer
- a second layer or diene layer consisting of a composition based on at least one diene elastomer, the content of diene elastomer being in a range from more than 50 to 100 phr.
- the first layer of the laminate, or layer of aromatic polyester block copolymer (CBPA) consists of a composition based on at least one elastomer aromatic polyester block copolymer thermoplastic (CBPA), the content of aromatic polyester block copolymer (CBPA) being in a range from more than 50 to 100 phr (parts by weight per hundred parts by weight of elastomer).
- thermoplastic elastomers have an intermediate structure between thermoplastic polymers and elastomers. They are block copolymers, made up of rigid, thermoplastic blocks, connected by flexible blocks, elastomers.
- thermoplastic elastomer used in the adhesion layer for the implementation of the laminate of the tire of the invention is a block copolymer whose thermoplastic blocks are aromatic polyesters, the elastomeric block may vary.
- this aromatic polyester block copolymer thermoplastic elastomer (TPE) is abbreviated as CBPA herein.
- the number-average molecular weight (denoted by Mn) of the CBPA is preferably between 15,000 and 500,000 g / mol, more preferably between 20,000 and 300,000 g / mol.
- Mn number-average molecular weight
- the number average molecular weight (Mn) of CBPA is determined by any technique known to those skilled in the art and in particular, in known manner, steric exclusion chromatography (SEC).
- SEC steric exclusion chromatography
- the sample is solubilized beforehand in a suitable solvent at a concentration of approximately 2 g / l; then the solution is filtered on 0.45 ⁇ porosity filter before injection.
- the apparatus used is a "WATERS alliance" chromatographic chain.
- the elution solvent is hexafluoroisopranol with sodium trifluoroactetate salt at a concentration of 0.02 M, the flow rate of 0.5 ml / min, the temperature of the system 35 ° C and the analysis time 90 min.
- the CBPAs have two glass transition temperature peaks (Tg, measured according to ASTM D3418), the lowest temperature being relative to the elastomer portion of the CBPA, the highest temperature being relative to the thermoplastic part of the CBPA, that is to say the aromatic polyester block.
- Tg glass transition temperature peaks
- the soft blocks of the CBPA are defined by a Tg lower than the ambient temperature (25 ° C), while the rigid blocks of aromatic polyester have a Tg greater than 60 ° C.
- CBPA have, by their thermoplastic blocks a melting temperature (Tf) (measured by DSC) greater than 120 ° C.
- Tf melting temperature
- CBPA layer thermoplastic elastomers CBPA whose Tf is between 140 ° C and 210 ° C.
- CBPAs are copolymers comprising a large number of blocks (more than 30, typically 50 to 500), these blocks preferably having low masses, for example 500 to 5000 g / mol, these CBPA are called multiblocks and are a sequential elastomeric block - thermoplastic block that repeats itself.
- aromatic polyester block copolymer thermoplastic elastomers block copolymer thermoplastic elastomer in which the rigid blocks are essentially (ie more than 80% by weight, preferably greater than 90% by weight). % by weight and more preferably greater than 99% by weight) made of aromatic polyester (that is to say one or more aromatic polyester (s)).
- the elastomeric block of the CBPA is selected from the group consisting of polyethers, aliphatic polyesters, polycarbonates and mixtures thereof.
- the elastomeric block of CBPA is selected from the group consisting of polyethers and mixtures thereof, and even more preferably from the group of aliphatic polyethers and mixtures thereof.
- the CBPA is an aromatic polyester block copolymer and polyether
- it belongs to the family of block copolymers polyester and polyether (abbreviated "COPE").
- COPE sold by the company TOYOBO such as "COPE P30B”, “COPE P40B”, “COPE P40H” or “COPE P55B”.
- COPE TPE marketed by the company DSM under the name “Arnitel”, or by the company Dupont under the name “Hytrel”, or by the company Ticona under the name “Riteflex”.
- the total amount of CBPA elastomer is in a range that varies from more than 50 to 100 phr, preferably from 65 to 100 phr, preferably from 70 to 100 phr, and in particular from 80 to 100 phr. Also preferably, the composition contains from 95 to 100 phr of CBPA elastomer.
- the CBPA elastomer or elastomers are preferably the single elastomer (s) of the CBPA layer.
- the CBPA elastomer or elastomers described above are therefore sufficient in themselves in the CBPA layer to be used for the laminate of the tire according to the invention.
- composition of the CBPA layer according to the invention may nevertheless comprise at least one (that is to say one or more) other elastomers as non-CBPA elastomer, this other elastomer may be used alone, or in blending with at least one (i.e. one or more) other non-CBPA elastomer.
- the total content of optional non-CBPA elastomer, in the composition of the CBPA layer, is in a range from 0 to less than 50 phr, preferably from 0 to 35 phr, more preferably from 0 to 30 phr, and in particular from 0 to 20 phr. Also preferably, the composition contains from 0 to 5 phr of non-CBPA elastomer. Also preferably, the composition of the CBPA layer according to the invention does not contain a non-CBPA elastomer.
- thermoplastic elastomer (abbreviated "TPE") must be understood in a manner known to those skilled in the art, the elastomers which have an intermediate structure between thermoplastic polymers and elastomers. These are block copolymers comprising flexible blocks and rigid blocks, as described for example in WO 2012/152688.
- elastomer or “diene” rubber must be understood in a known way (one means one or more) elastomer derived at least in part (ie a homopolymer or a copolymer) of monomers dienes (monomers carrying two double bonds carbon carbon, conjugated or not). These diene elastomers are described in detail in the description of the diene layer below.
- This layer may contain, in addition to the elastomer or elastomers, all the usual constituents of rubber compositions such as fillers, plasticizers, additives and crosslinking agents. These constituents are described below in the optional constituents of the CBPA and diene layers of the laminate of the tire of the invention.
- the diene layer of the multilayer laminate of the tire according to the invention comprises at least one (that is to say one or more) diene elastomer, which can be used alone, or in a blend with at least one ( i.e. one or more other diene elastomer (or rubber).
- diene elastomers such as certain butyl rubbers or copolymers of dienes and alpha olefins EPDM type can be qualified as "essentially saturated" diene elastomers (low or very low diene origin ratio). low, always less than 15%).
- iene elastomer is understood to mean, whatever the category above, which may be used in the compositions according to the invention: (a) any homopolymer obtained by polymerization of a conjugated diene monomer having from 4 to 12 carbon atoms;
- diene elastomer any type of diene elastomer can be used in the invention.
- the composition contains a vulcanization system, essentially unsaturated elastomers, especially types (a) and (b) above, are preferably used for the manufacture of the multilayer laminate according to the present invention.
- the elastomers may for example be prepared in dispersion or in solution; they may be coupled and / or starred or functionalized with a coupling agent and / or starring or functionalization.
- a coupling to carbon black there may be mentioned for example functional groups comprising a C-Sn bond or amino functional groups such as benzophenone for example; for coupling to a reinforcing inorganic filler such as silica, mention may be made, for example, of silanol or polysiloxane functional groups having a silanol end (as described, for example, in FR 2,740,778 or US Pat. No.
- alkoxysilane groups such as as described for example in FR 2,765,882 or US 5,977,238), carboxylic groups (as described for example in WO 01/92402 or US 6,815,473, WO 2004/096865 or US 2006/0089445) or groups polyethers (as described for example in EP 1 127 909 or US Pat. No. 6,503,973).
- functionalized elastomers mention may also be made of elastomers (such as SBR, BR, NR or IR) of the epoxidized type.
- the diene layer comprises a total content of diene elastomers in a range from more than 95 phr to 100 phr and very preferably the diene layer comprises 100 phr of diene elastomers, which are therefore the only elastomers of the layer.
- composition of the diene layer according to the invention may nevertheless comprise at least one (that is to say one or more) other elastomers as elastomer other than diene, this other elastomer may be used alone or in blending with at least one (i.e., one or more) other elastomer other than diene.
- the total amount of elastomer other than diene, optional, in the composition of the diene layer, is in a range from 0 to 50 phr and in particular from 0 to less than 50 phr, preferably from 0 to 45 phr. and more preferably from 0 to 40 phr. Also preferably, the composition contains from 0 to 5 phr of elastomer other than diene. Also preferably, the composition of the diene layer according to the invention does not contain elastomer other than diene.
- thermoplastic elastomer (abbreviated "TPE") must be understood in a manner known to those skilled in the art, the elastomers which have an intermediate structure between thermoplastic polymers and elastomers. These are block copolymers comprising flexible blocks and rigid blocks, as described for example in WO 2012/152688.
- This diene layer may contain, in addition to the diene elastomer or elastomers, all the usual constituents of rubber compositions such as fillers, plasticizers, additives and crosslinking agents. These constituents are described below in the optional constituents of the CBPA and diene layers of the laminate of the invention.
- the multilayer laminate of the tire according to the invention has the essential feature of being provided with at least two elastomeric layers called "CBPA layer” and “diene layer” of different formulations. Nevertheless, said layers of said multilayer laminate may comprise, in addition to elastomeric constituents which are specific thereto, optional non-essential components, preferably present or not, among which may be mentioned in particular those which are presented below.
- a reinforcing filler may be used in one or more of the compositions, and in particular in the diene layer of the tire laminate. of the invention.
- a reinforcing filler When a reinforcing filler is used, it is possible to use any type of filler usually used for the manufacture of tires, for example an organic filler such as carbon black, an inorganic filler such as silica, or again a cutting of these two types of load, including a cut of carbon black and silica.
- an organic filler such as carbon black
- an inorganic filler such as silica
- composition of the layers of the multilayer laminate of the tire of the invention may contain one or more micrometric charges, called “non-reinforcing" or inert, such as lamellar charges known to the man of the invention. 'art.
- the multilayer laminate of the tire of the invention may further comprise the various additives usually present in the tire elastomeric layers known to those skilled in the art.
- one or more additives chosen from protective agents such as antioxidants or antiozonants, anti-UV agents, the various agents of implementation or other stabilizers, or the promoters able to promote the adhesion to the rest of the structure will be chosen. of the tire.
- the CBPA layer of the multilayer laminate does not contain all these additives at the same time and preferentially in some cases, the CBPA layer of the multilayer laminate contains no antiozonant, anti-UV agent, no implementing agent, no stabilizer , neither adhesion promoter.
- composition of the multilayer laminate layers of the tire of the invention may contain a crosslinking system known to those skilled in the art.
- the composition of the CBPA layer of the multilayer laminate of the tire of the invention does not contain a crosslinking system.
- the tire of the invention is manufactured in the usual manner, incorporating the laying of the laminate of the invention to the different layers of said tire.
- the tire of the invention can be used in any type of tire, especially in a tire for a motor vehicle such as a two-wheel type of vehicle, tourism or industrial, or non-automobile such as bicycle.
- the laminate of the tire of the invention can be manufactured by combining the layers of the laminate, especially before baking.
- the multilayer laminate of the tire of the invention is prepared according to the methods known to those skilled in the art, by separately preparing the two layers of the laminate, then by combining the CBPA layer with the diene layer.
- the combination of the CBPA layer with the diene layer can be done under the action of heat and possibly pressure Preparation of the CBPA layer
- the CBPA layer of the multilayer laminate of the tire of the invention is prepared in a conventional manner, for example, by incorporating the various components into a twin-screw extruder, so as to carry out the melting of the matrix and an incorporation of all the components. the ingredients, then use a flat die to make the CBPA layer with the desired target thickness. More generally, the formatting of the CBPA may be made by any method known to those skilled in the art: extrusion, calendering, extrusion blow molding, injection, cast film. Preparation of the diene layer
- the diene layer of the multilayer laminate of the tire of the invention is prepared in suitable mixers, using two successive preparation phases according to a general procedure well known to those skilled in the art: a first phase of work or thermo-mixing. -mechanical (sometimes referred to as “non-productive" phase) at high temperature, up to a maximum temperature of between 130 ° C and 200 ° C, preferably between 145 ° C and 185 ° C, followed by a second phase mechanical work (sometimes called a "productive" phase) at a lower temperature, typically less than 120 ° C, for example between 60 ° C and 100 ° C, finishing phase during which the crosslinking or vulcanization system is incorporated .
- a first phase of work or thermo-mixing. (sometimes referred to as "non-productive" phase) at high temperature, up to a maximum temperature of between 130 ° C and 200 ° C, preferably between 145 ° C and 185 ° C, followed by a second phase mechanical work (sometimes called a "productive”
- all the basic constituents of the compositions of the invention are incorporated in an intimate manner by mixing, with the diene elastomer during the first so-called non-productive phase, that is to say that is introduced into the mixer and which is kneaded thermomechanically, in one or more steps, at least these different basic constituents until the maximum temperature is between 130 ° C and 200 ° C, preferably between 145 ° C and 185 ° C.
- the first phase is conducted in a single thermomechanical step during which is introduced into a suitable mixer such as a conventional internal mixer, all the necessary constituents, the possible additional coating or processing agents and other miscellaneous additives, with the exception of the vulcanisation system.
- the total mixing time, in this non-productive phase is preferably between 1 and 15 min.
- the vulcanization system is then incorporated at low temperature, generally in an external mixer such as a roller mixer; the whole is then mixed (productive phase) for a few minutes, for example between 2 and 15 min.
- the final composition thus obtained is then calendered, for example in the form of a layer denominated in the present invention diene layer.
- the multilayer laminate examples of the tire of the invention are prepared as indicated above.
- the multilayer laminate examples of the tire of the invention are tested as to the adhesion of the CBPA layer to the diene layer according to a so-called peel test.
- the first layer (Layer A) according to the invention (A3 to A5) is a layer of CBPA, whereas in two control laminates (Al and A2 respectively), the layer A is a diene layer or a layer of SIBS.
- the different layers A are summarized in Table 1 below.
- the diene layer, meanwhile (layer B) is a layer whose composition is shown in Table 2 below.
- CBPA 1 COPE "Pelprene P30B” marketed by the company TOYOBO
- CBPA 2 COPE "Pelprene P40B” marketed by the company TOYOBO
- CBPA 3 COPE "Pelprene P40H” marketed by the company TOYOBO
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/104,407 US20160311201A1 (en) | 2013-12-17 | 2014-12-11 | Tire comprising a multilayer laminated composite |
JP2016541405A JP2017501930A (ja) | 2013-12-17 | 2014-12-11 | 多層ラミネート型複合体を含むタイヤ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1362810A FR3014739B1 (fr) | 2013-12-17 | 2013-12-17 | Pneumatique comportant un stratifie multicouche |
FR1362810 | 2013-12-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015091183A1 true WO2015091183A1 (fr) | 2015-06-25 |
Family
ID=50289956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2014/077321 WO2015091183A1 (fr) | 2013-12-17 | 2014-12-11 | Pneumatique comportant un stratifie multicouche |
Country Status (4)
Country | Link |
---|---|
US (1) | US20160311201A1 (fr) |
JP (1) | JP2017501930A (fr) |
FR (1) | FR3014739B1 (fr) |
WO (1) | WO2015091183A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7357842B2 (ja) * | 2019-12-13 | 2023-10-10 | Toyo Tire株式会社 | インナーライナー用ゴム組成物、及びそれを用いた空気入りタイヤ |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2308487A1 (fr) * | 1975-04-23 | 1976-11-19 | Dunlop Ltd | Produits composites formes de matieres polymeres et leur fabrication |
FR2740778A1 (fr) | 1995-11-07 | 1997-05-09 | Michelin & Cie | Composition de caoutchouc a base de silice et de polymere dienique fonctionalise ayant une fonction silanol terminale |
FR2765882A1 (fr) | 1997-07-11 | 1999-01-15 | Michelin & Cie | Composition de caoutchouc a base de noir de carbone ayant de la silice fixee a sa surface et de polymere dienique fonctionnalise alcoxysilane |
US6179008B1 (en) * | 1996-02-09 | 2001-01-30 | The Yokohama Rubber Co., Ltd. | Thermoplastic elastomer composition, process for the preparation there of, hose made by using the composition, and process for the production thereof |
EP1127909A1 (fr) | 2000-02-24 | 2001-08-29 | Société de Technologie Michelin | Composition de caoutchouc vulcanisable, utilisable pour fabriquer un pneumatique, et pneumatique comprenant cette composition |
WO2001092402A1 (fr) | 2000-05-26 | 2001-12-06 | Societe De Technologie Michelin | Composition de caoutchouc utilisable comme bande de roulement de pneumatique |
WO2004096865A2 (fr) | 2003-04-29 | 2004-11-11 | Societe De Technologie Michelin | Procede d’obtention d’un elastomere greffe a groupes fonctionnels le long de la chaîne et composition de caoutchouc |
EP1987962A1 (fr) | 2006-02-23 | 2008-11-05 | The Yokohama Rubber Co., Ltd. | Corps multicouche et pneu l'utilisant |
WO2010063427A1 (fr) | 2008-12-03 | 2010-06-10 | Societe De Technologie Michelin | Stratifie multicouche etanche a l'air pour objet pneumatique |
WO2012152688A1 (fr) | 2011-05-12 | 2012-11-15 | Compagnie Generale Des Etablissements Michelin | Pneumatique dont la zone sommet est pourvue d'une sous-couche comportant un elastomere thermoplastique |
WO2013011111A1 (fr) * | 2011-07-21 | 2013-01-24 | Compagnie Generale Des Etablissements Michelin | Bandage pneumatique pourvu d'une bande de roulement à base d'un élastomère thermoplastique |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0423643Y2 (fr) * | 1984-12-27 | 1992-06-02 | ||
JP2528189B2 (ja) * | 1989-10-27 | 1996-08-28 | 住友ゴム工業株式会社 | 空気入りタイヤ |
FR2975407B1 (fr) * | 2011-05-18 | 2014-11-28 | Michelin Soc Tech | Cordon composite pour bande de roulement de bandage pneumatique |
JP5189694B1 (ja) * | 2012-06-15 | 2013-04-24 | 東洋ゴム工業株式会社 | 熱可塑性ポリエステル系樹脂部材とゴム部材との加硫接着体及びその製造方法 |
-
2013
- 2013-12-17 FR FR1362810A patent/FR3014739B1/fr not_active Expired - Fee Related
-
2014
- 2014-12-11 JP JP2016541405A patent/JP2017501930A/ja active Pending
- 2014-12-11 US US15/104,407 patent/US20160311201A1/en not_active Abandoned
- 2014-12-11 WO PCT/EP2014/077321 patent/WO2015091183A1/fr active Application Filing
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2308487A1 (fr) * | 1975-04-23 | 1976-11-19 | Dunlop Ltd | Produits composites formes de matieres polymeres et leur fabrication |
FR2740778A1 (fr) | 1995-11-07 | 1997-05-09 | Michelin & Cie | Composition de caoutchouc a base de silice et de polymere dienique fonctionalise ayant une fonction silanol terminale |
US6013718A (en) | 1995-11-07 | 2000-01-11 | Michelin & Cie | Rubber composition based on silica and on functionalized diene polymer which has a silanol end functional group |
US6179008B1 (en) * | 1996-02-09 | 2001-01-30 | The Yokohama Rubber Co., Ltd. | Thermoplastic elastomer composition, process for the preparation there of, hose made by using the composition, and process for the production thereof |
FR2765882A1 (fr) | 1997-07-11 | 1999-01-15 | Michelin & Cie | Composition de caoutchouc a base de noir de carbone ayant de la silice fixee a sa surface et de polymere dienique fonctionnalise alcoxysilane |
US5977238A (en) | 1997-07-11 | 1999-11-02 | Michelin & Cie | Rubber composition based on carbon black having silica fixed to its surface and on diene polymer functionalized with alkoxysilane |
US6503973B2 (en) | 2000-02-24 | 2003-01-07 | Michelin Recherche Et Technique S.A. | Vulcanizable rubber composition usable for the manufacture of a tire, and a tire comprising this composition |
EP1127909A1 (fr) | 2000-02-24 | 2001-08-29 | Société de Technologie Michelin | Composition de caoutchouc vulcanisable, utilisable pour fabriquer un pneumatique, et pneumatique comprenant cette composition |
WO2001092402A1 (fr) | 2000-05-26 | 2001-12-06 | Societe De Technologie Michelin | Composition de caoutchouc utilisable comme bande de roulement de pneumatique |
US6815473B2 (en) | 2000-05-26 | 2004-11-09 | Michelin Recherche Et Technique S.A. | Rubber composition usable as a tire tread |
WO2004096865A2 (fr) | 2003-04-29 | 2004-11-11 | Societe De Technologie Michelin | Procede d’obtention d’un elastomere greffe a groupes fonctionnels le long de la chaîne et composition de caoutchouc |
US20060089445A1 (en) | 2003-04-29 | 2006-04-27 | Michelin Recherche Et Technique S.A. | Process for obtaining a grafted elastomer having functional groups along the chain and a rubber composition |
EP1987962A1 (fr) | 2006-02-23 | 2008-11-05 | The Yokohama Rubber Co., Ltd. | Corps multicouche et pneu l'utilisant |
WO2010063427A1 (fr) | 2008-12-03 | 2010-06-10 | Societe De Technologie Michelin | Stratifie multicouche etanche a l'air pour objet pneumatique |
WO2012152688A1 (fr) | 2011-05-12 | 2012-11-15 | Compagnie Generale Des Etablissements Michelin | Pneumatique dont la zone sommet est pourvue d'une sous-couche comportant un elastomere thermoplastique |
WO2013011111A1 (fr) * | 2011-07-21 | 2013-01-24 | Compagnie Generale Des Etablissements Michelin | Bandage pneumatique pourvu d'une bande de roulement à base d'un élastomère thermoplastique |
Also Published As
Publication number | Publication date |
---|---|
US20160311201A1 (en) | 2016-10-27 |
FR3014739B1 (fr) | 2016-01-01 |
JP2017501930A (ja) | 2017-01-19 |
FR3014739A1 (fr) | 2015-06-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2879872B1 (fr) | Stratifie multicouche pour pneumatique | |
EP2877529B1 (fr) | Pneumatique ayant une adherence sur sol mouille amelioree | |
EP2125943B1 (fr) | Bande de roulement dont la composition comporte une poudre de gomme de guar | |
EP2895335B1 (fr) | Pneumatique pourvu d'une bande de roulement comprenant un élastomère thermoplastique et du noir de carbone | |
EP3099486B1 (fr) | Stratifie multicouche pour pneumatique | |
WO2012152686A1 (fr) | Pneumatique pourvu d'une bande de roulement comprenant un elastomere thermoplastique | |
EP3099742A1 (fr) | Pneumatique pourvu d'une bande de roulement comprenant un élastomère thermoplastique | |
WO2014135430A1 (fr) | Stratifie multicouche pour pneumatique | |
EP3541633A1 (fr) | Pneumatique comprenant une bande de roulement comprenant un élastomère thermoplastique et un système de réticulation à base d'un ou plusieurs peroxydes | |
FR2978154A1 (fr) | Bandage pneumatique pourvu d'une bande de roulement a base d'un elastomere thermoplastique | |
EP2879871A1 (fr) | Stratifie multicouche pour pneumatique | |
WO2018002537A1 (fr) | Pneumatique comprenant une composition comprenant un système spécifique d'élastomères | |
WO2015091190A1 (fr) | Pneumatique pourvu d'une bande de roulement comprenant un elastomere thermoplastique copolymere a bloc polyester aromatique | |
WO2015091183A1 (fr) | Pneumatique comportant un stratifie multicouche | |
EP3083238A1 (fr) | Stratifie multicouche pour pneumatique | |
WO2018104662A1 (fr) | Composition de caoutchouc comprenant un élastomère dienique, un dérivé de polyacrylate et d'un élastomère thermoplastique spécifique | |
EP3083272B1 (fr) | Pneumatique dont la zone sommet est pourvue d'une sous-couche comportant un elastomere thermoplastique copolymere a bloc polyester aromatique | |
EP3083273B1 (fr) | Pneumatique pour velocipede | |
WO2017089682A1 (fr) | Pneumatique pourvu d'une bande de roulement comprenant un elastomere thermoplastique et un elastomere dienique | |
WO2019122627A1 (fr) | Stratifie elastomerique |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14809863 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15104407 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 2016541405 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 14809863 Country of ref document: EP Kind code of ref document: A1 |