WO2022123154A1 - Bandage pour vehicule hors la route - Google Patents
Bandage pour vehicule hors la route Download PDFInfo
- Publication number
- WO2022123154A1 WO2022123154A1 PCT/FR2021/052200 FR2021052200W WO2022123154A1 WO 2022123154 A1 WO2022123154 A1 WO 2022123154A1 FR 2021052200 W FR2021052200 W FR 2021052200W WO 2022123154 A1 WO2022123154 A1 WO 2022123154A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tire
- phr
- rubber
- cellulose pulp
- pneumatic
- Prior art date
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 115
- 239000000203 mixture Substances 0.000 claims abstract description 114
- 239000005060 rubber Substances 0.000 claims abstract description 93
- 239000001913 cellulose Substances 0.000 claims abstract description 35
- 229920002678 cellulose Polymers 0.000 claims abstract description 35
- 229920003244 diene elastomer Polymers 0.000 claims abstract description 24
- 239000012763 reinforcing filler Substances 0.000 claims abstract description 17
- 238000004132 cross linking Methods 0.000 claims abstract description 15
- 239000011159 matrix material Substances 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 51
- 239000000377 silicon dioxide Substances 0.000 claims description 24
- 244000043261 Hevea brasiliensis Species 0.000 claims description 17
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- 238000000034 method Methods 0.000 description 10
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- 239000003795 chemical substances by application Substances 0.000 description 9
- 239000011593 sulfur Substances 0.000 description 9
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- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 description 7
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- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 4
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- 229960002447 thiram Drugs 0.000 description 3
- ROGIWVXWXZRRMZ-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1 ROGIWVXWXZRRMZ-UHFFFAOYSA-N 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 2
- KFFQABQEJATQAT-UHFFFAOYSA-N N,N'-dibutylthiourea Chemical compound CCCCNC(=S)NCCCC KFFQABQEJATQAT-UHFFFAOYSA-N 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000016571 aggressive behavior Effects 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
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- VLLYOYVKQDKAHN-UHFFFAOYSA-N buta-1,3-diene;2-methylbuta-1,3-diene Chemical compound C=CC=C.CC(=C)C=C VLLYOYVKQDKAHN-UHFFFAOYSA-N 0.000 description 2
- RTACIUYXLGWTAE-UHFFFAOYSA-N buta-1,3-diene;2-methylbuta-1,3-diene;styrene Chemical compound C=CC=C.CC(=C)C=C.C=CC1=CC=CC=C1 RTACIUYXLGWTAE-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
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- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
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- 230000000930 thermomechanical effect Effects 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
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- OWRCNXZUPFZXOS-UHFFFAOYSA-N 1,3-diphenylguanidine Chemical compound C=1C=CC=CC=1NC(=N)NC1=CC=CC=C1 OWRCNXZUPFZXOS-UHFFFAOYSA-N 0.000 description 1
- QEDJMOONZLUIMC-UHFFFAOYSA-N 1-tert-butyl-4-ethenylbenzene Chemical compound CC(C)(C)C1=CC=C(C=C)C=C1 QEDJMOONZLUIMC-UHFFFAOYSA-N 0.000 description 1
- OVSKIKFHRZPJSS-UHFFFAOYSA-N 2,4-D Chemical compound OC(=O)COC1=CC=C(Cl)C=C1Cl OVSKIKFHRZPJSS-UHFFFAOYSA-N 0.000 description 1
- HLBZWYXLQJQBKU-UHFFFAOYSA-N 4-(morpholin-4-yldisulfanyl)morpholine Chemical compound C1COCCN1SSN1CCOCC1 HLBZWYXLQJQBKU-UHFFFAOYSA-N 0.000 description 1
- JLBJTVDPSNHSKJ-UHFFFAOYSA-N 4-Methylstyrene Chemical compound CC1=CC=C(C=C)C=C1 JLBJTVDPSNHSKJ-UHFFFAOYSA-N 0.000 description 1
- 206010001488 Aggression Diseases 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
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- 241000209035 Ilex Species 0.000 description 1
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- MSRJTTSHWYDFIU-UHFFFAOYSA-N octyltriethoxysilane Chemical compound CCCCCCCC[Si](OCC)(OCC)OCC MSRJTTSHWYDFIU-UHFFFAOYSA-N 0.000 description 1
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- QAZLUNIWYYOJPC-UHFFFAOYSA-M sulfenamide Chemical compound [Cl-].COC1=C(C)C=[N+]2C3=NC4=CC=C(OC)C=C4N3SCC2=C1C QAZLUNIWYYOJPC-UHFFFAOYSA-M 0.000 description 1
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- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Substances CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 1
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 1
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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
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0016—Compositions of the tread
-
- 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
- B60C1/0025—Compositions of the sidewalls
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L7/00—Compositions of natural rubber
-
- 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
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/06—Tyres specially adapted for particular applications for heavy duty vehicles
- B60C2200/065—Tyres specially adapted for particular applications for heavy duty vehicles for construction vehicles
Definitions
- the present invention relates to pneumatic or non-pneumatic off-road tires, in particular tires for civil engineering vehicles and agricultural vehicles.
- the so-called off-road tires due to their majority off-road use, are provided with treads which have, compared to the thicknesses of the treads of tires for light vehicles, in particular for passenger cars or light trucks, large layers of rubber material.
- the wearing part of the tread of a tire for heavy goods vehicles has a thickness of at least 15 mm, that of a civil engineering vehicle at least 30 mm, or even up to 120 mm.
- a tread undergoes mechanical stresses and attacks resulting from direct contact with the ground.
- the mechanical stresses and attacks suffered by the tire are amplified under the effect of the weight it supports.
- Tires for mining vehicles in particular are subjected to strong stresses, both at the local level: rolling on the macro-indenters represented by the pebbles which constitute the tracks (crushed rock), and at the overall level: passage of significant torque because the slopes of the tracks to enter or leave the "pits", or opencast mines, are of the order of 10%, and stresses heavy tires during vehicle U-turns for loading and unloading maneuvers.
- application WO 2018/104671 Al proposes using an elastomeric matrix comprising an epoxidized polyisoprene having a molar rate of epoxidation ranging from 5% to less than 50%.
- Application WO 2016/202970 Al proposes the use of a specific composition whose elastomeric matrix comprises a diene elastomer chosen from the group consisting of polybutadienes, butadiene copolymers and mixtures thereof, and a styrene thermoplastic elastomer comprising at least a rigid styrenic segment and at least one flexible diene segment comprising at least 20% by mass of conjugated diene units.
- the subject of the invention is a pneumatic or non-pneumatic tire for off-road vehicles, comprising a rubber composition based on at least one elastomer matrix comprising at least one diene elastomer, a reinforcing filler, pulp of cellulose, and a crosslinking system, in which the cellulose pulp has a length comprised in a range ranging from 0.3 to 5 mm.
- composition based on means a composition comprising the mixture and/or the in situ reaction product of the various constituents used, some of these constituents being able to react and/or being intended to react with one another, less partially, during the various phases of manufacture of the composition; the composition thus possibly being in the totally or partially crosslinked state or in the non-crosslinked state.
- part by weight per hundred parts by weight of elastomer (or phr) is meant within the meaning of the present invention, the part, by mass per hundred parts by mass of elastomer.
- any interval of values denoted by the expression “between a and b” represents the domain of values going from more than a to less than b (i.e. limits a and b excluded) while any interval of values denoted by the expression “from a to b” signifies the range of values going from a to b (that is to say including the strict limits a and b).
- the interval represented by the expression "between a and b" is also and preferably designated.
- a predominant elastomer is the elastomer representing the greatest mass relative to the total mass of the elastomers in the composition.
- a so-called majority filler is the one representing the greatest mass among the fillers of the composition.
- a "minority” compound is a compound which does not represent the largest mass fraction among compounds of the same type.
- by majority is meant present at more than 50%, preferably more than 60%, 70%, 80%, 90%, and more preferably the “majority” compound represents 100%.
- the compounds mentioned in the description can be of fossil origin or biosourced. In the latter case, they can be, partially or totally, derived from biomass or obtained from renewable raw materials derived from biomass. In the same way, the compounds mentioned can also come from the recycling of materials already used, that is to say they can be, partially or totally, from a recycling process, or obtained from materials raw materials themselves from a recycling process. This concerns in particular polymers, plasticizers, fillers, etc.
- Glass transition temperature “Tg” values described herein are measured in a known manner by DSC (Differential Scanning Calorimetry) according to standard ASTM D3418 (1999).
- the tire according to the invention has the essential characteristic of comprising a rubber composition based on an elastomer matrix comprising at least one diene elastomer.
- die elastomer it is recalled that should be understood an elastomer which is derived at least in part (ie a homopolymer or a copolymer) from diene monomers (monomers carrying two carbon-carbon double bonds, conjugated or not).
- diene elastomers can be classified into two categories: “essentially unsaturated” or “essentially saturated”.
- the term “essentially unsaturated” generally means a diene elastomer derived at least in part from conjugated diene monomers, having a content of units or units of diene origin (conjugated dienes) which is greater than 15% (% in moles); thus diene elastomers such as butyl rubbers or copolymers of dienes and alpha-olefins of the EPDM type do not fall within the preceding definition and may in particular be qualified as "essentially saturated” diene elastomers (rate of units of low or very low diene origin, always less than 15%).
- the diene elastomers included in said composition are preferably essentially unsaturated.
- diene elastomer capable of being used in the compositions in accordance with the invention is meant in particular: a) any homopolymer of a conjugated or non-conjugated diene monomer having from 4 to 18 carbon atoms; b) any copolymer of a diene, conjugated or not, having 4 to 18 carbon atoms and at least one other monomer.
- the other monomer can be ethylene, an olefin or a diene, conjugated or not.
- Suitable conjugated dienes are conjugated dienes having from 4 to 12 carbon atoms, in particular 1,3-dienes, such as in particular 1,3-butadiene and isoprene.
- Suitable olefins are vinylaromatic compounds having 8 to 20 carbon atoms and aliphatic ⁇ -monoolefins having 3 to 12 carbon atoms.
- Suitable vinylaromatic compounds are, for example, styrene, ortho-, meta-, para-methylstyrene, the commercial "vinyl-toluene" mixture, para-tert-butyl styrene.
- Suitable aliphatic ⁇ -monoolefins are in particular acyclic aliphatic ⁇ -monoolefins having 3 to 18 carbon atoms.
- the diene elastomer is preferably a diene elastomer of the highly unsaturated type, in particular a diene elastomer chosen from the group consisting of natural rubber (NR), synthetic polyisoprenes (IR), polybutadienes (BR), copolymers of butadiene, isoprene copolymers and mixtures of these elastomers.
- NR natural rubber
- IR synthetic polyisoprenes
- BR polybutadienes
- copolymers of butadiene isoprene copolymers and mixtures of these elastomers.
- Such copolymers are more preferably chosen from the group consisting of butadiene-styrene (SBR) copolymers, isoprene-butadiene (BIR) copolymers, isoprene-styrene (SIR) copolymers, isoprene- styrene-butadiene (SBIR), ethylene-butadiene (EBR) copolymers and mixtures of such copolymers.
- SBR butadiene-styrene
- BIR isoprene-butadiene
- SIR isoprene-styrene copolymers
- SBIR isoprene- styrene-butadiene
- EBR ethylene-butadiene
- the above diene elastomers can, for example, be block, random, sequenced, microsequenced, and be prepared in dispersion or in solution; they can be coupled and/or starred or further functionalized with a coupling and/or starring or functionalizing agent, for example epoxidized.
- the elastomer matrix of said rubber composition of the tire according to the invention mainly comprises at least one isoprene elastomer.
- isoprene elastomer is understood to mean in known manner an isoprene homopolymer or copolymer, in other words a diene elastomer chosen from the group consisting of natural rubber (NR), synthetic polyisoprenes (IR), various isoprene copolymers and mixtures of these elastomers.
- NR natural rubber
- IR synthetic polyisoprenes
- isoprene copolymers mention will be made in particular of the copolymers of isobutene-isoprene (butyl rubber - IIR), of isoprene-styrene (SIR), of isoprene-butadiene (BIR) or of isoprene-butadiene-styrene (SBIR).
- This isoprene elastomer is preferably natural rubber or a synthetic cis-1,4 polyisoprene; among these synthetic polyisoprenes, are preferably used polyisoprenes having a rate (% molar) of cis-1,4 bonds greater than 90%, more preferably still greater than 98%.
- the isoprene elastomer is a polyisoprene comprising a mass content of 1,4-cis bonds of at least 90% of the mass of the polyisoprene.
- the second elastomer is chosen from the group consisting of natural rubber, synthetic polyisoprenes and mixtures thereof. More preferably the polyisoprene is a natural rubber.
- the isoprene elastomer preferably natural rubber, can be epoxidized or not.
- the elastomer matrix of said rubber composition of the tire according to the invention comprises at least 50%, preferably at least 70%, preferably at least 90%, preferably 100%, by mass, of at least one copolymer of butadiene-styrene (SBR) or a mixture of at least one copolymer of butadiene-styrene (SBR) and of at least one polybutadiene (BR).
- SBR butadiene-styrene
- BR polybutadiene
- the SBR can be prepared in emulsion (ESBR) or in solution (SSBR). Preferably, it is an SSBR. Whether ESBR or SSBR.
- ESBR emulsion
- SSBR solution
- the copolymers based on styrene and butadiene in particular SBR, mention may be made in particular of those having a styrene content of between 5% and 60% by weight and more particularly between 20% and 50%, a content (% molar) in -1,2 bonds of the butadiene part comprised between 4% and 75%, a content (% molar) of trans-1,4 bonds comprised between 10% and 80%.
- the butadiene-styrene copolymer is an SBR prepared in solution and has a styrene content of between 5% and 60%, preferably 6% to 30%, by weight relative to the total weight of the copolymer, and a content ( % molar) in ⁇ 1,2 bonds of the butadiene part comprised between 4% and 75%, preferably between 15% and 30%.
- the polybutadiene has a glass transition temperature comprised in a range ranging from -90 to -120°C, preferably from -100 to -115°C.
- said rubber composition comprises from 70 to 100 phr, preferably from 80 to 100 phr, preferably from 90 to 100 phr, of isoprene elastomer, preferably of natural rubber.
- said rubber composition may comprise from 70 to 99 phr, for example from 80 to 98 phr, for example from 90 to 97 phr, of isoprene elastomer, the balance possibly being another diene elastomer, for example originating from the support cellulose pulp.
- Said rubber composition of the tire according to the invention also has the essential characteristic of comprising cellulose pulp.
- cellulose pulp By cellulose pulp is meant cellulose fibers having undergone a fibrillation step (also called pulping), well known to those skilled in the art.
- fibrillation methods described in the state of the art, which are mechanical or chemical, described for example in documents WO 83/003856, WO 2013/049222, EP0677122 and EP0494214.
- a fiber Before fibrillation, a fiber, having a given length and diameter, consists of a plurality of microfibrils essentially parallel to each other, and which are oriented in the direction of the length of the fiber. After fibrillation, certain microfibrils of the fiber have been broken and then emanate from the core of the fiber (and are therefore no longer necessarily oriented in the direction of the length of the fiber).
- the cellulose pulp has a length comprised in a range ranging from 0.3 to 5 mm. Below 0.3 mm, the contribution of rigidity in the composition becomes too low, while above 5 mm, the anisotropy increases strongly which implies a shift in rigidity according to the direction of the pulp within the composition.
- This rigidity shift is not interesting because of the destination of the rubber article comprising the composition: the attacks mechanical stresses undergone by these articles do not come from a single direction but can come from any direction. On the contrary, it is interesting to have a rigidity without preferential direction.
- the cellulose pulp has a length comprised in a range ranging from 0.5 to 4 mm, preferably from 1.1 to 3.9 mm. The pulp with these lengths has an anisotropic close to the value 1 and therefore a homogeneous rigidity.
- the cellulose pulp has an average diameter comprised in a range ranging from 1 to 40 ⁇ m, preferably from 3 to 25 ⁇ m, preferably from 5 to 15 ⁇ m. These diameters, associated with the aforementioned lengths, make it possible to further increase the homogeneity of the rigidity, i.e. present an anisotropic even closer to the value 1.
- the cellulose pulp has a length to average diameter ratio comprised in a range ranging from 12 to 4000, preferably from 40 to 1300, more preferably from 70 to 600.
- the length and average diameter of cellulose pulp can easily be measured by light microscope image analysis, scanning electron microscope image analysis, transmission type microscope photograph image analysis, scattering data analysis of X-rays.
- the content of the cellulose pulp in the said rubber composition is advantageously within a range ranging from 1 to 25 phr, preferably from 3 to 20 phr. Below 1 phr, no effect is observed on the resistance to mechanical attack, whereas above 25 phr, the composition exhibits limit properties that are too low.
- the fibers are coated with an adhesive composition making it possible to improve their adhesion to the rubber composition.
- This adhesive composition can be a classic resorcinol-formaldehyde-latex glue, commonly abbreviated RFL glue, or even an adhesive composition based on a phenol-aldehyde resin and a latex, as described in documents WO 2013/017421 , WO 2013/017422, WO 2013/017423, WO 2015/007641 and WO 2015/007642.
- RFL glue resorcinol-formaldehyde-latex glue
- an adhesive composition based on a phenol-aldehyde resin and a latex as described in documents WO 2013/017421 , WO 2013/017422, WO 2013/017423, WO 2015/007641 and WO 2015/007642.
- the use of adhesive compositions based on a phenol-aldehyde resin and a latex is particularly advantageous because of the non-emission of formaldehyde.
- Cellulose pulps that can be used in the context of the present invention are commercially available, in particular the “Rhenogran WDP-70/SBR” pulp from the company Lanxess.
- Said rubber composition of the tire according to the invention further comprises a reinforcing filler, known for its ability to reinforce a rubber composition that can be used for the manufacture of rubber articles.
- the reinforcing filler can comprise carbon black, silica or a mixture thereof.
- the reinforcing filler mainly comprises carbon black.
- the blacks that can be used in the context of the present invention can be any black conventionally used in pneumatic or non-pneumatic tires or their treads (so-called tire-grade blacks).
- tire-grade blacks any black conventionally used in pneumatic or non-pneumatic tires or their treads
- These carbon blacks can be used in the isolated state, as commercially available, or in any other form, for example as a carrier for some of the rubber additives used.
- the carbon blacks could for example already be incorporated to the diene elastomer, in particular isoprene in the form of a masterbatch (or “masterbatch” in English) (see for example applications WO 97/36724 or WO 99/16600).
- organic fillers other than carbon blacks examples include functionalized polyvinyl organic fillers as described in applications WO 2006/069792, WO 2006/069793, WO 2008/003434 and
- the BET specific surface of the carbon black is at least 70 m 2 /g, preferably at least 90 m 2 /g, more preferably between 100 and 150 m 2 /g.
- the BET specific surface of carbon blacks is measured according to the ASTM D6556-10 standard [multipoint method (at least 5 points) - gas: nitrogen - relative pressure range P/PO: 0.1 to 0.3],
- the content of carbon black in the said rubber composition of the tire according to the invention is comprised from 10 to 70 phr, preferably from 11 to 65 phr, preferably from 12 to 59 phr.
- silica is used in said rubber composition of the tire according to the invention, it may be any silica known to those skilled in the art, in particular any precipitated or pyrogenic silica having a BET surface as well as a specific surface.
- CT AB both less than 450 m 2 /g, preferably from 30 to 400 m 2 /g.
- the BET surface area of silica is determined by gas adsorption using the Brunauer-Emmett-Teller method described in "The Journal of the American Chemical Society” (Vol. 60, page 309, February 1938), and more precisely according to a method adapted from standard NF ISO 5794-1, appendix E of June 2010 [multipoint volumetric method (5 points) - gas: nitrogen - vacuum degassing: one hour at 160°C - relative pressure range p/ in: 0.05 to 0.17],
- the CTAB specific surface values of silica were determined according to standard NF ISO 5794-1, appendix G of June 2010. The process is based on the adsorption of CTAB (N-hexadecyl-N,N,N-bromide). trimethylammonium) on the "external" surface of the reinforcing filler.
- silica it advantageously has a BET specific surface area of less than 200 m 2 /g and/or a CTAB specific surface area of less than 220 m 2 /g, preferably a BET specific surface area comprised in a range ranging from 125 to 200 m 2 /g and/or a CTAB specific surface comprised in a range ranging from 140 to 170 m 2 /g.
- silicas that can be used in the context of the present invention mention will be made, for example, of the highly dispersible precipitated silicas (known as "HDS") "Ultrasil 7000" and “Ultrasil 7005" from the company Evonik, the silicas “Zeosil 1165MP, 1135MP and 1115MP” from Rhodia, "Hi-Sil EZ150G” silica from PPG, "Zeopol 8715, 8745 and 8755” silicas from Huber, high specific surface silicas as described in application WO 03/ 16837.
- HDS highly dispersible precipitated silicas
- an at least bifunctional coupling agent intended to ensure a sufficient connection, of a chemical and/or physical nature, between the silica ( surface of its particles) and the diene elastomer (hereinafter simply referred to as "coupling agent").
- at least bifunctional organosilanes or polyorganosiloxanes are used.
- bifunctional is meant a compound having a first functional group capable of interacting with the inorganic filler and a second functional group capable of interacting with the diene elastomer.
- such a bifunctional compound may comprise a first functional group comprising a silicon atom, said first functional group being capable of interacting with the hydroxyl groups of an inorganic filler and a second functional group comprising a sulfur atom, said second group functional being capable of interacting with the diene elastomer.
- the content of coupling agent, in said rubber composition of the tire according to the invention is advantageously less than 6% by weight relative to the weight of silica, preferably less than 2 %, preferably less than 1% by weight relative to the weight of silica.
- said rubber composition of the tire according to the invention does not comprise a coupling agent.
- said rubber composition of the tire according to the invention comprises silica
- said composition advantageously comprises a silica covering agent.
- silica covering agents mention may be made, for example, of hydroxysilanes or hydrolysable silanes such as hydroxysilanes (see for example WO 2009/062733), alkylalkoxysilanes, in particular alkyltriethoxysilanes such as for example 1-octyl-tri- ethoxysilane, polyols (for example diols or triols), polyethers (for example polyethylene glycols), primary, secondary or tertiary amines (for example trialkanol-amines), an optionally substituted guanidine, in particular diphenylguanidine, polyorganos hydroxylated or hydrolysable siloxanes (for example a,co-dihydroxy-poly-organosilanes, in particular a,co-dihydroxy-polydimethyls
- the silica capping agent is a polyethylene glycol.
- the level of silica covering agent, preferably polyethylene glycol, in said rubber composition of the tire according to the invention is advantageously within a range ranging from 1 to 6 phr, preferably from 1.5 to 4 pc.
- the total rate of reinforcing filler in said rubber composition of the tire according to the invention is preferably within a range ranging from 10 and 70 phr, preferably between 11 and 65 phr, preferably between 12 and 59 phr.
- crosslinking system of said rubber composition of the tire according to the invention may be based on molecular sulfur and/or sulfur and/or peroxide donors, well known to those skilled in the art.
- the crosslinking system is preferably a sulfur-based vulcanization system (molecular sulfur and/or sulfur-donating agent).
- the sulfur, in said rubber composition of the tire according to the invention is used at a preferential rate of between 0.5 and 10 phr.
- the sulfur content, in said rubber composition of the tire according to the invention is between 0.5 and 2 phr, preferably between 0.6 and 1.5 phr.
- Said rubber composition of the tire according to the invention advantageously comprises a vulcanization accelerator, which is preferably chosen from the group consisting of accelerators of the thiazole type as well as their derivatives, accelerators of the sulfenamide and thiourea types and mixtures thereof.
- a vulcanization accelerator which is preferably chosen from the group consisting of accelerators of the thiazole type as well as their derivatives, accelerators of the sulfenamide and thiourea types and mixtures thereof.
- the vulcanization accelerator is chosen from the group consisting of 2-mercaptobenzothiazyl disulphide (MBTS), N-cyclohexyl-2-benzothiazyl sulfenamide (CBS), N,N-dicyclohexyl-2-benzothiazyl sulfenamide (DCBS ), N-ter-butyl-2-benzothiazyl sulfenamide (TBBS), N-ter-butyl-2-benzothiazyl sulfenimide (TBSI), morpholine disulfide, N-morpholino-2-benzothiazyl sulfenamide (MBS), dibutylthiourea (DBTU), and mixtures thereof.
- MBTS 2-mercaptobenzothiazyl disulphide
- CBS N-cyclohexyl-2-benzothiazyl sulfenamide
- DCBS N,N-dicyclohexyl-2-benzothiazy
- the primary vulcanization accelerator is N-cyclohexyl-2-benzothiazyl sulfenamide (CBS).
- CBS N-cyclohexyl-2-benzothiazyl sulfenamide
- the rate of vulcanization accelerator in said rubber composition of the tire according to the invention is preferably within a range ranging from 0.2 to 10 phr, preferably from 0.5 and 2 phr, preferably between 0.5 and 1.5 phr, more preferably between 0.5 and 1.4 phr.
- the sulfur or sulfur donor/vulcanization accelerator weight ratio, in said rubber composition of the tire according to the invention is within a range ranging from 1.2 to 2.5, preferably from 1.4 to 2.
- Said rubber composition of the tire according to the invention may optionally also comprise all or part of the usual additives usually used in elastomer compositions for pneumatic or non-pneumatic tires, such as for example plasticizers (such as plasticizer oils and/or plasticizing resins), pigments, protective agents such as anti-ozone waxes, chemical antiozonants, antioxidants, anti-fatigue agents, reinforcing resins (as described for example in application WO 02/10269).
- plasticizers such as plasticizer oils and/or plasticizing resins
- protective agents such as anti-ozone waxes, chemical antiozonants, antioxidants, anti-fatigue agents, reinforcing resins (as described for example in application WO 02/10269).
- compositions that can be used in the context of the present invention can be manufactured in suitable mixers, using two successive preparation phases well known to those skilled in the art:
- thermomechanical mixing (so-called "non-productive" phase), which can be carried out in a single thermomechanical step during which, in a suitable mixer such as a usual internal mixer (for example of the type 'Banbury'), all the necessary constituents, in particular the elastomeric matrix, the reinforcing filler, the cellulose pulp, any other miscellaneous additives, with the exception of the crosslinking system.
- a suitable mixer such as a usual internal mixer (for example of the type 'Banbury')
- all the necessary constituents in particular the elastomeric matrix, the reinforcing filler, the cellulose pulp, any other miscellaneous additives, with the exception of the crosslinking system.
- the incorporation of the optional filler into the elastomer can be carried out in one or more stages by mixing thermomechanically.
- the filler is already incorporated in whole or in part into the elastomer in the form of a masterbatch (“masterbatch” in English) as described for example in applications WO 97/36724 or WO 99 /16600, it is the masterbatch which is mixed directly and, where appropriate, the other elastomers or fillers present in the composition which are not in the form of the masterbatch are incorporated, as well as any other miscellaneous additives other than the system of cross-linking.
- the non-productive phase can be carried out at high temperature, up to a maximum temperature of between 110° C. and 200° C., preferably between 130° C. and 185° C., for a duration generally of between 2 and 10 minutes.
- a second phase of mechanical work (so-called "productive" phase), which is carried out in an external mixer such as a roller mixer, after cooling the mixture obtained during the first non-productive phase to a lower temperature, typically below 120° C., for example between 40° C. and 100° C.
- the crosslinking system is then incorporated, and the whole is then mixed for a few minutes, for example between 5 and 15 min.
- the final composition thus obtained is then calendered, for example in the form of a sheet or a plate, in particular for characterization in the laboratory, or else extruded (or co-extruded with another rubber composition) in the form of a semi-finished (or profiled) rubber which can be used in a pneumatic or non-pneumatic tire, a rubber track or a conveyor belt, for example as a tire or non-pneumatic tire tread or as a tire sidewall.
- a semi-finished (or profiled) rubber which can be used in a pneumatic or non-pneumatic tire, a rubber track or a conveyor belt, for example as a tire or non-pneumatic tire tread or as a tire sidewall.
- the composition can be either in the raw state (before crosslinking or vulcanization), or in the cured state (after crosslinking or vulcanization).
- crosslinking of the composition can be carried out in a manner known to those skilled in the art, for example at a temperature of between 130° C. and 200° C., under pressure. II-7 Pneumatic or non-pneumatic tire
- the tread of a pneumatic or non-pneumatic tire comprises a rolling surface intended to be in contact with the ground when the tire is rolling.
- the tread is provided with a sculpture comprising in particular sculpture elements in relief, which may be ribs or elementary blocks delimited by various main, longitudinal or circumferential, transverse or even oblique grooves, the sculpture elements possibly also comprising various incisions or finer lamellae.
- composition in accordance with the invention may be present in the tread of said pneumatic or non-pneumatic tire and/or in the sidewall of said pneumatic tire, preferably in the tread of said pneumatic or non-pneumatic tire.
- it When it is present in the tread, it may be present in the entire tread of the tire according to the invention, or alternatively in part of the tread of the tire.
- the present invention is particularly well suited to the treads of tires intended to equip civil engineering vehicles, agricultural vehicles and heavy goods vehicles, more particularly civil engineering vehicles whose tires are subjected to very specific constraints, in particular soils rocks on which they roll.
- the pneumatic or non-pneumatic tire provided with a tread comprising a composition according to the invention is a tire for a civil engineering, agricultural or heavy goods vehicle, preferably civil engineering.
- the tread of the tire according to the invention may have one or more grooves, the average depth of which ranges from 30 to 120 mm, preferably from 45 to 75 mm.
- the average rate of volumetric hollows over the entire tread can be included in a range from 5 to 40%, preferably 5 to 25%.
- the bandages according to the invention can have a diameter ranging from 20 to 63 inches, preferably from 35 to 63 inches.
- composition of the pneumatic or non-pneumatic tire in accordance with the invention can also be used in rubber articles whose resistance to mechanical attack proves to be particularly advantageous, in particular caterpillars for off-road vehicles or conveyor belts (also called conveying).
- a caterpillar comprising at least one rubber element comprising said composition of said tire described above, the at least one rubber element preferably being an endless rubber belt or a plurality of rubber pads.
- Also disclosed herein is a rubber conveyor belt comprising said tire composition described above.
- Rubber article comprising a rubber composition based on at least one elastomeric matrix comprising at least one diene elastomer, a reinforcing filler, cellulose pulp, and a crosslinking system, in which the cellulose pulp has a length comprised in a range from 0.3 to 5 mm, the rubber article being chosen from the group consisting of tires and not tires for off-road vehicles, tracks comprising at least one rubber element and conveyor belts .
- Rubber article according to any one of the preceding embodiments in which the cellulose pulp has a length comprised in a range ranging from 0.5 to 4 mm, preferably from 1.1 to 3.9 mm.
- Rubber article according to any one of the preceding embodiments in which the cellulose pulp has a length to average diameter ratio within a range ranging from 12 to 4000, preferably from 40 to 1300, more preferably 70 at 600.
- Rubber article according to any of the preceding embodiments in which the cellulose pulp is coated with an adhesive composition.
- RFL Resorcinol-Formaldehyde-Latex glue
- a rubber article according to any of the preceding embodiments said rubber article being a pneumatic or non-pneumatic tire for off-road vehicles.
- Rubber article according to embodiment 15 or 16 said rubber article being a pneumatic or non-pneumatic tire for off-road vehicles, the tread of which has one or more grooves, the average depth of which is within a range from 30 to 120 mm, preferably 45 to 75 mm.
- a rubber article according to embodiment 21, wherein the at least one rubber member of the track is an endless rubber belt or a plurality of rubber pads.
- the secant moduli were measured in the direction of the calendering (Direction C) on the one hand and in the direction perpendicular to the calendering (Direction P) on the other hand.
- the anisotropy criterion is defined as being the MSA10 (Sens C) / MSA10 (Sens P) ratio. The closer this ratio is to 1, the more homogeneous the stiffness of the mixture. On the contrary, the more this ratio moves away from 1, the less the rigidity is homogeneous. For example, a ratio of 5 means that the stiffness in the direction of the liner is five times greater than the stiffness in the direction perpendicular to the liner.
- the dynamic properties G* and Max tan( ⁇ ) are measured on a viscoanalyzer (Metravib VA4000), according to standard ASTM D5992-96.
- the response of a sample of vulcanized composition (cylindrical specimen 2 mm thick and 79 mm 2 in section) subjected to a sinusoidal stress in simple alternating shear, at the frequency of 10Hz, under normal conditions of temperature (23°C) according to standard ASTM D 1349-09 or at 60°C.
- the value of the loss factor, denoted tan( ⁇ ) max is recorded.
- the hysteretic performance results (tan( ⁇ )max at 60° C.) are expressed as a percentage base 100 relative to the control composition T1.
- a result above 100 indicates an improvement in hysteresis performance, i.e. a decrease in hysteresis.
- This test is representative of resistance to attack. It consists of rolling a metal caterpillar mounted on a pneumatic tire mounted on a wheel and vehicle, and inflated, on which rubber pads of a given composition are fixed, on a track filled with pebbles for a certain time. At the end of rolling, the runners are removed and the number of cuts visible to the naked eye on the surface are counted. The lower the number, the better the attack resistance performance.
- pads of different compositions were manufactured (see Table 1 below) according to the method described in point IV-2 below.
- the non-crosslinked composition obtained in point IV-2 was calendered to a thickness of 5.5 mm, cut out from plates (2 of 260x120 mm, 2 of 250x100 mm and 2 of 235x90 0mm) which were then stacked in a pyramid fashion.
- This block of 6 plates was then inserted into a pyramid-shaped mold with a rectangular base of 260x120 mm and a flat top of 235x90 mm in area, and baked at a temperature of 120°C for 300 minutes at a pressure of 180 bars, thus allowing the crosslinking of the composition.
- the pads were then mounted on two X-TRACK10 metal tracks from the Caterpillar company, which were themselves mounted on two MICHELIN XMINE D2 12.00R24 tires on the rear axle of a SCANIA R410 truck.
- the tires have been re-cut to support the tracks.
- the tires were inflated to a pressure of 7 bars and carried a load of 4,250 kg per tire.
- the truck drove on a flat track covered with 30/60 size porphyry pebbles obtained from SONVOLES Murcia, Spain, for 5 hours at a speed of 5 km/h.
- the density of pebbles on the track was around 1000 to 1500 pebbles per square meter.
- the attack performance results are expressed as a percentage base 100 relative to the control composition T1. A result greater than 100 indicates an improvement in the resistance to attack.
- the rubber compositions were produced as described in point II.6 above.
- the "non-productive" phase was carried out in a 0.4 liter mixer for 3.5 minutes, for an average paddle speed of 50 revolutions per minute until reaching a maximum drop temperature of 160° vs.
- the “productive” phase was carried out in a cylinder tool at 23°C for 5 minutes.
- the crosslinking of the composition was carried out at a temperature of between 130° C. and 200° C., under pressure.
- Table 1 presents the compositions tested (in phr, unless otherwise indicated), as well as the results obtained. [Table 1]
Abstract
Description
Claims
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CN202180083167.7A CN116583561A (zh) | 2020-12-09 | 2021-12-03 | 用于越野车辆的轮胎 |
EP21848267.7A EP4259454A1 (fr) | 2020-12-09 | 2021-12-03 | Bandage pour vehicule hors la route |
CA3196756A CA3196756A1 (fr) | 2020-12-09 | 2021-12-03 | Bandage pour vehicule hors la route |
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FRFR2012881 | 2020-12-09 | ||
FR2012881A FR3117122B1 (fr) | 2020-12-09 | 2020-12-09 | Bandage pour vehicule hors la route |
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EP (1) | EP4259454A1 (fr) |
CN (1) | CN116583561A (fr) |
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Citations (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1983003856A1 (fr) | 1982-05-04 | 1983-11-10 | Sunds Defibrator Ab | Procede et dispositif de production de pulpe de cellulose |
EP0494214A1 (fr) | 1989-09-28 | 1992-07-15 | Feldmuehle Ag Stora | Procede pour fabriquer des pates chimio-mecaniques et/ou chimio-thermo-mecaniques. |
EP0501227A1 (fr) | 1991-02-25 | 1992-09-02 | Compagnie Generale Des Etablissements Michelin-Michelin & Cie | Composition de caoutchouc et enveloppes de pneumatiques à base de ladite composition |
EP0677122A1 (fr) | 1992-12-30 | 1995-10-18 | Sunds Defibrator Industries Aktiebolag | Procede pour produire une pate mecanique et semi-chimique |
EP0735088A1 (fr) | 1995-03-29 | 1996-10-02 | Compagnie Generale Des Etablissements Michelin-Michelin & Cie | Composition de caoutchouc destinée à la fabrication d'enveloppes de pneumatiques à base de silices précipitées "dopées" à l'aluminium |
EP0784072A1 (fr) | 1996-01-11 | 1997-07-16 | COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN-MICHELIN & CIE | Composition de caoutchouc pour enveloppes de pneumatiques à base de silices contenant un additif de renforcement à base de polyorganosiloxane fonctionnalisé et d'un composé organosilane |
WO1997036724A2 (fr) | 1996-04-01 | 1997-10-09 | Cabot Corporation | Nouveaux materiaux composites elastomeres, et procede et appareil s'y rapportant |
EP0810258A1 (fr) | 1996-05-28 | 1997-12-03 | Compagnie Generale Des Etablissements Michelin-Michelin & Cie | Composition de caoutchouc diénique à base d'alumine en tant que charge renforçante et son utilisation pour la fabrication d'enveloppes de pneumatiques |
US5852079A (en) * | 1996-03-16 | 1998-12-22 | Continental Aktiengesellschaft | Rubber composition for tires |
WO1999009036A1 (fr) | 1997-08-21 | 1999-02-25 | Osi Specialties, Inc. | Agents de couplage a base de mercaptosilanes bloques, utilises dans des caoutchoucs a charge |
WO1999016600A1 (fr) | 1997-09-30 | 1999-04-08 | Cabot Corporation | Melanges composites a base d'elastomere et procedes d'elaboration |
WO2000005301A1 (fr) | 1998-07-22 | 2000-02-03 | Societe De Technologie Michelin | Systeme de couplage (charge blanche/elastomere dienique) a base d'alkoxysilane polysulfure, de dithiophosphate de zinc et de derive guanidique |
WO2002010269A2 (fr) | 2000-07-31 | 2002-02-07 | Societe De Technologie Michelin | Bande de roulement pour pneumatique |
WO2002031041A1 (fr) | 2000-10-13 | 2002-04-18 | Societe De Technologie Michelin | Composition de caoutchouc comportant a titre d'agent de couplage un organosilane polyfonctionnel |
WO2002030939A1 (fr) | 2000-10-13 | 2002-04-18 | Societe De Technologie Michelin | Organosilane polyfonctionnel utilisable comme agent de couplage et son procede d'obtention |
WO2002083782A1 (fr) | 2001-04-10 | 2002-10-24 | Societe De Technologie Michelin | Pneumatique et bande de roulement comportant comme agent de couplage un tetrasulfure de bis-alkoxysilane |
WO2003016837A1 (fr) | 2001-08-17 | 2003-02-27 | Volvo Lastvagnar Ab | Procede d'estimation de la masse d'un vehicule entraine sur une route a pente variable et procede d'estimation de la pente de la route |
US6849754B2 (en) | 2001-08-06 | 2005-02-01 | Degussa Ag | Organosilicon compounds |
WO2006023815A2 (fr) | 2004-08-20 | 2006-03-02 | General Electric Company | Compositions cycliques de silanes mercaptofonctionnels bloquees derivees de diol |
WO2006069793A1 (fr) | 2004-12-31 | 2006-07-06 | Societe De Technologie Michelin | Composition elastomerique renforcee d'une charge de polyvinylaromatique fonctionnalise |
WO2006069792A1 (fr) | 2004-12-31 | 2006-07-06 | Societe De Technologie Michelin | Nanoparticules de polyvinylaromatique fonctionnalise |
WO2006125533A1 (fr) | 2005-05-26 | 2006-11-30 | Societe De Technologie Michelin | Compostion de cautchouc pour pneumatique comportant un agent de couplage organosilicique et un agent de recouvrement de charge inorganique |
WO2006125532A1 (fr) | 2005-05-26 | 2006-11-30 | Societe De Technologie Michelin | Composition de caoutchouc pour pneumatique comportant un agent de couplage organosiloxane |
WO2006125534A1 (fr) | 2005-05-26 | 2006-11-30 | Societe De Technologie Michelin | Composition de caoutchouc pour pneumatique comportant un systeme de couplage organosilicique |
WO2007061550A1 (fr) | 2005-11-16 | 2007-05-31 | Dow Corning Corporation | Organosilanes et leur preparation et utilisation dans des compositions d’elastomere |
WO2007098080A2 (fr) | 2006-02-21 | 2007-08-30 | Momentive Performance Materials Inc. | Composition de matière de charge non agglomérante à base de silane organofonctionnel |
WO2008003434A1 (fr) | 2006-07-06 | 2008-01-10 | Societe De Technologie Michelin | Nanoparticules de polymere vinylique fonctionnalise |
WO2008003435A1 (fr) | 2006-07-06 | 2008-01-10 | Societe De Technologie Michelin | Composition élastomèrique renforcée d'une charge de polymère vinylique non aromatique fonctionnalise |
WO2008055986A2 (fr) | 2006-11-10 | 2008-05-15 | Rhodia Operations | Procede de preparation d'alcoxysilanes (poly)sulfures et nouveaux produits intermediaires dans ce procede |
WO2009062733A2 (fr) | 2007-11-15 | 2009-05-22 | Societe De Technologie Michelin | Composition de caoutchouc pour pneumatique comportant un agent de recouvrement hydroxysilane |
KR20100035236A (ko) * | 2008-09-26 | 2010-04-05 | 한국타이어 주식회사 | 타이어 트레드 베이스용 고무 조성물 |
WO2010072685A1 (fr) | 2008-12-22 | 2010-07-01 | Societe De Technologie Michelin | Agent de couplage mercaptosilane bloque |
WO2013017422A1 (fr) | 2011-08-04 | 2013-02-07 | Compagnie Generale Des Etablissements Michelin | Composition adhésive aqueuse a base de polyaldéhyde et phloroglucinol |
WO2013017423A1 (fr) | 2011-08-04 | 2013-02-07 | Compagnie Generale Des Etablissements Michelin | Composition adhesive aqueuse a base de polyaldehyde et 2,2',4,4'-tetrahydroxydiphenyl sulfide |
WO2013017421A1 (fr) | 2011-08-04 | 2013-02-07 | Compagnie Generale Des Etablissements Michelin | Composition adhesive aqueuse a base de polyaldehyde et de polyphenol |
WO2013049222A1 (fr) | 2011-09-30 | 2013-04-04 | Weyerhaeuser Nr Company | Fibrillation de cellulose |
WO2015007641A1 (fr) | 2013-07-16 | 2015-01-22 | Compagnie Generale Des Etablissements Michelin | Composition adhesive aqueuse a base d'aldehyde biosourcé et de polyphenol |
WO2016202970A1 (fr) | 2015-06-18 | 2016-12-22 | Compagnie Generale Des Etablissements Michelin | Pneumatique pour vehicules destines a porter de lourdes charges |
EP3299411A1 (fr) * | 2015-06-08 | 2018-03-28 | Sumitomo Rubber Industries, Ltd. | Bandage pneumatique et pneumatique de motocyclette |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010072010A (ko) | 1998-07-22 | 2001-07-31 | 미첼 롤리에르 | 폴리설파이드 알콕시실란, 엔아민 및 구아니딘 유도체를기본으로 하는 커플링 시스템(백색 충전제/디엔엘라스토머) |
FR3060013A1 (fr) | 2016-12-08 | 2018-06-15 | Compagnie Generale Des Etablissements Michelin | Composition de caoutchouc a base de polyisoprene epoxyde |
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Patent Citations (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1983003856A1 (fr) | 1982-05-04 | 1983-11-10 | Sunds Defibrator Ab | Procede et dispositif de production de pulpe de cellulose |
EP0494214A1 (fr) | 1989-09-28 | 1992-07-15 | Feldmuehle Ag Stora | Procede pour fabriquer des pates chimio-mecaniques et/ou chimio-thermo-mecaniques. |
EP0501227A1 (fr) | 1991-02-25 | 1992-09-02 | Compagnie Generale Des Etablissements Michelin-Michelin & Cie | Composition de caoutchouc et enveloppes de pneumatiques à base de ladite composition |
EP0677122A1 (fr) | 1992-12-30 | 1995-10-18 | Sunds Defibrator Industries Aktiebolag | Procede pour produire une pate mecanique et semi-chimique |
EP0735088A1 (fr) | 1995-03-29 | 1996-10-02 | Compagnie Generale Des Etablissements Michelin-Michelin & Cie | Composition de caoutchouc destinée à la fabrication d'enveloppes de pneumatiques à base de silices précipitées "dopées" à l'aluminium |
EP0784072A1 (fr) | 1996-01-11 | 1997-07-16 | COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN-MICHELIN & CIE | Composition de caoutchouc pour enveloppes de pneumatiques à base de silices contenant un additif de renforcement à base de polyorganosiloxane fonctionnalisé et d'un composé organosilane |
US5852079A (en) * | 1996-03-16 | 1998-12-22 | Continental Aktiengesellschaft | Rubber composition for tires |
WO1997036724A2 (fr) | 1996-04-01 | 1997-10-09 | Cabot Corporation | Nouveaux materiaux composites elastomeres, et procede et appareil s'y rapportant |
EP0810258A1 (fr) | 1996-05-28 | 1997-12-03 | Compagnie Generale Des Etablissements Michelin-Michelin & Cie | Composition de caoutchouc diénique à base d'alumine en tant que charge renforçante et son utilisation pour la fabrication d'enveloppes de pneumatiques |
WO1999009036A1 (fr) | 1997-08-21 | 1999-02-25 | Osi Specialties, Inc. | Agents de couplage a base de mercaptosilanes bloques, utilises dans des caoutchoucs a charge |
WO1999016600A1 (fr) | 1997-09-30 | 1999-04-08 | Cabot Corporation | Melanges composites a base d'elastomere et procedes d'elaboration |
WO2000005301A1 (fr) | 1998-07-22 | 2000-02-03 | Societe De Technologie Michelin | Systeme de couplage (charge blanche/elastomere dienique) a base d'alkoxysilane polysulfure, de dithiophosphate de zinc et de derive guanidique |
WO2002010269A2 (fr) | 2000-07-31 | 2002-02-07 | Societe De Technologie Michelin | Bande de roulement pour pneumatique |
WO2002031041A1 (fr) | 2000-10-13 | 2002-04-18 | Societe De Technologie Michelin | Composition de caoutchouc comportant a titre d'agent de couplage un organosilane polyfonctionnel |
WO2002030939A1 (fr) | 2000-10-13 | 2002-04-18 | Societe De Technologie Michelin | Organosilane polyfonctionnel utilisable comme agent de couplage et son procede d'obtention |
WO2002083782A1 (fr) | 2001-04-10 | 2002-10-24 | Societe De Technologie Michelin | Pneumatique et bande de roulement comportant comme agent de couplage un tetrasulfure de bis-alkoxysilane |
US6849754B2 (en) | 2001-08-06 | 2005-02-01 | Degussa Ag | Organosilicon compounds |
WO2003016837A1 (fr) | 2001-08-17 | 2003-02-27 | Volvo Lastvagnar Ab | Procede d'estimation de la masse d'un vehicule entraine sur une route a pente variable et procede d'estimation de la pente de la route |
WO2006023815A2 (fr) | 2004-08-20 | 2006-03-02 | General Electric Company | Compositions cycliques de silanes mercaptofonctionnels bloquees derivees de diol |
WO2006069792A1 (fr) | 2004-12-31 | 2006-07-06 | Societe De Technologie Michelin | Nanoparticules de polyvinylaromatique fonctionnalise |
WO2006069793A1 (fr) | 2004-12-31 | 2006-07-06 | Societe De Technologie Michelin | Composition elastomerique renforcee d'une charge de polyvinylaromatique fonctionnalise |
WO2006125533A1 (fr) | 2005-05-26 | 2006-11-30 | Societe De Technologie Michelin | Compostion de cautchouc pour pneumatique comportant un agent de couplage organosilicique et un agent de recouvrement de charge inorganique |
WO2006125532A1 (fr) | 2005-05-26 | 2006-11-30 | Societe De Technologie Michelin | Composition de caoutchouc pour pneumatique comportant un agent de couplage organosiloxane |
WO2006125534A1 (fr) | 2005-05-26 | 2006-11-30 | Societe De Technologie Michelin | Composition de caoutchouc pour pneumatique comportant un systeme de couplage organosilicique |
WO2007061550A1 (fr) | 2005-11-16 | 2007-05-31 | Dow Corning Corporation | Organosilanes et leur preparation et utilisation dans des compositions d’elastomere |
WO2007098080A2 (fr) | 2006-02-21 | 2007-08-30 | Momentive Performance Materials Inc. | Composition de matière de charge non agglomérante à base de silane organofonctionnel |
WO2008003434A1 (fr) | 2006-07-06 | 2008-01-10 | Societe De Technologie Michelin | Nanoparticules de polymere vinylique fonctionnalise |
WO2008003435A1 (fr) | 2006-07-06 | 2008-01-10 | Societe De Technologie Michelin | Composition élastomèrique renforcée d'une charge de polymère vinylique non aromatique fonctionnalise |
WO2008055986A2 (fr) | 2006-11-10 | 2008-05-15 | Rhodia Operations | Procede de preparation d'alcoxysilanes (poly)sulfures et nouveaux produits intermediaires dans ce procede |
WO2009062733A2 (fr) | 2007-11-15 | 2009-05-22 | Societe De Technologie Michelin | Composition de caoutchouc pour pneumatique comportant un agent de recouvrement hydroxysilane |
KR20100035236A (ko) * | 2008-09-26 | 2010-04-05 | 한국타이어 주식회사 | 타이어 트레드 베이스용 고무 조성물 |
WO2010072685A1 (fr) | 2008-12-22 | 2010-07-01 | Societe De Technologie Michelin | Agent de couplage mercaptosilane bloque |
WO2013017422A1 (fr) | 2011-08-04 | 2013-02-07 | Compagnie Generale Des Etablissements Michelin | Composition adhésive aqueuse a base de polyaldéhyde et phloroglucinol |
WO2013017423A1 (fr) | 2011-08-04 | 2013-02-07 | Compagnie Generale Des Etablissements Michelin | Composition adhesive aqueuse a base de polyaldehyde et 2,2',4,4'-tetrahydroxydiphenyl sulfide |
WO2013017421A1 (fr) | 2011-08-04 | 2013-02-07 | Compagnie Generale Des Etablissements Michelin | Composition adhesive aqueuse a base de polyaldehyde et de polyphenol |
WO2013049222A1 (fr) | 2011-09-30 | 2013-04-04 | Weyerhaeuser Nr Company | Fibrillation de cellulose |
WO2015007641A1 (fr) | 2013-07-16 | 2015-01-22 | Compagnie Generale Des Etablissements Michelin | Composition adhesive aqueuse a base d'aldehyde biosourcé et de polyphenol |
WO2015007642A1 (fr) | 2013-07-16 | 2015-01-22 | Compagnie Generale Des Etablissements Michelin | Composition adhesive aqueuse a base d'aldehyde biosourcé et de polyphenol |
EP3299411A1 (fr) * | 2015-06-08 | 2018-03-28 | Sumitomo Rubber Industries, Ltd. | Bandage pneumatique et pneumatique de motocyclette |
WO2016202970A1 (fr) | 2015-06-18 | 2016-12-22 | Compagnie Generale Des Etablissements Michelin | Pneumatique pour vehicules destines a porter de lourdes charges |
Non-Patent Citations (1)
Title |
---|
BRUNAUER-EMMETT-TELLER, THE JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 60, 1938, pages 309 |
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EP4259454A1 (fr) | 2023-10-18 |
FR3117122B1 (fr) | 2023-12-15 |
CA3196756A1 (fr) | 2022-06-16 |
FR3117122A1 (fr) | 2022-06-10 |
CN116583561A (zh) | 2023-08-11 |
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