Abstract

A tire comprising at least a rubber composition based on at least a blend of natural rubber, NR, or synthetic polyisoprene, and a styrene-butadiene copolymer, SBR, the SBR having a content greater than or equal to 20 parts per hundred parts of elastomer, phr, a reinforcing filler comprising carbon black, characterized in that the composition comprises a plasticizing resin having a glass transition temperature, Tg, greater than or equal to 20° C. and that the SBR has a Tg greater than or equal to −65° C.

IPC Classes  ?

• C08L 9/06 - Copolymers with styrene
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08L 7/00 - Compositions of natural rubber
• C08K 5/00 - Use of organic ingredients

Abstract

The disclosure is related to a tread for a tire, this tread having a tread surface intended to come into contact with a roadway and comprising at least one groove of width W and depth P delimited by two facing lateral walls, these lateral walls being connected together by a groove bottom. At least one groove has a plurality of closing devices for reducing the running resonance noise generated by this groove, each closing device comprising at least two sets of flexible blades, a first set is connected to the bottom of the groove and is intended to flex around a first axis, and at least one second set connected to a lateral wall delimiting the groove, this second set being intended to flex around a second axis, this second axis being different than the first axis.

IPC Classes  ?

• B60C 11/13 - Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
• B60C 11/04 - Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag

Abstract

The tire has a load index that is at least 118 and two layers of reinforcing elements. Each of the layers has a breaking force per unit width that is higher than 2900 daN/dm. A minimum strength per unit width, measured for an elongation of less than 10%, of the second layer is greater than 20% of the minimum strength per unit width, measured for an elongation of less than 10%, of the first layer. The reinforcing elements of the first layer have a thread count that is higher than 300 tex. The reinforcing elements of the two layers have a thread count of less than 750 tex. The elongation of the reinforcing elements of the second layer are greater than 8% under a force of 20 daN and the secant elastic modulus values under tension at 10% elongation, Mt, Mj, satisfy the relationship Mt/Mj≥1.

IPC Classes  ?

• B60C 9/04 - Carcasses the reinforcing cords of each carcass ply arranged in a substantially parallel relationship
• B60C 15/06 - Flipper strips, fillers, or chafing strips
• B60C 9/02 - Carcasses
• B60C 15/00 - Tyre beads, e.g. ply turn-up or overlap
• B60C 15/04 - Bead cores

Abstract

Tire with radial carcass reinforcement having a tread of thickness E, this tread having a tread surface and at least one cut opening onto the tread surface to form edge corners. The cut extends into the tread over a total depth H. The cut is in the form of a sipe having a width D. There is also formed, in the vicinity, i.e. at a minimum distance from the said edge corner that is at most equal to five times the width D of the cut, of at least one edge corner of this cut and on the tread surface, at least one cavity having a depth h that is small in comparison with the depth of the cut, i.e. that is at most equal to 30% of the depth H. The at least one cavity reduces the compression rigidity of the tread in the vicinity of the the at least one edge corner.

IPC Classes  ?

• B60C 11/12 - Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
• B60C 11/03 - Tread patterns
• B60C 11/04 - Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag
• B60C 11/11 - Tread patterns in which the raised area of the pattern consists only of isolated elements, e.g. blocks
• B60C 11/13 - Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping

Abstract

The invention relates to a process for the synthesis of a polymer bearing one or more pendant hydroxyaryl groups, comprising the reaction of a polymer bearing at least one epoxide functional group with a nucleophilic compound simultaneously bearing the hydroxyaryl group and a nucleophilic functional group selected from the group consisting of the phosphonic acid functional group and its ionic form.

IPC Classes  ?

• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08F 36/04 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
• C08L 19/00 - Compositions of rubbers not provided for in groups
• C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
• C08F 36/14 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated containing elements other than carbon and hydrogen
• C08F 36/20 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds unconjugated
• C08F 30/02 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium or a metal containing phosphorus
• C08C 19/06 - Epoxidation
• C08F 136/08 - Isoprene
• C08C 19/24 - Incorporating phosphorus atoms into the molecule
• C08C 19/40 - Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with oxygen or oxygen-containing groups with epoxy radicals
• C08F 36/06 - Butadiene
• C08F 36/08 - Isoprene

Abstract

A method for retreading a tire casing is disclosed herein. The method includes a tread is disposed on a casing carcass with a bonding layer being interposed in between, and a strip is tensioned through several circuits on the tread. Also disclosed herein is a tire employing the a method of retreading disclosed herein.

IPC Classes  ?

• B29D 30/54 - Retreading

Abstract

The tire tread having a tread surface and a total thickness E and at least one main groove which opens when new onto a tread surface. In the vicinity of this main groove, at least one discontinuous secondary groove has a plurality of hidden parts and a plurality of open parts. The open parts are open onto the tread surface when new. The main groove and the discontinuous secondary groove have roughly identical main directions. The mean distance L1, which is a distance measured at the open parts between the mean surface of the main groove and the mean surface of the discontinuous groove, is less than the mean distance L2 measured between the mean surface of the main groove and the mean surface of the discontinuous groove in the regions of the discontinuous groove that do not have open parts.

IPC Classes  ?

• B60C 11/03 - Tread patterns

Abstract

An elastomeric laminate is provided. The elastomeric laminate comprises a layer A consisting of a diene rubber composition, a layer B comprising a highly unsaturated diene elastomer B, n layers Ci arranged between the layer A and the layer B, n being an integer ≥2, i being an integer ranging from 1 to n, the layer C1 being arranged between the layer A and the layer C2, the layer Cn being arranged between the layer B and the layer Cn−1, the layer Ci being arranged between the layer Ci−1 and the layer Ci+1 for values of i ranging from 2 to n−1 when n>2. Such a laminate has good resistance to separation of the layers which constitute it.

IPC Classes  ?

• B32B 25/00 - Layered products essentially comprising natural or synthetic rubber
• B32B 25/08 - Layered products essentially comprising natural or synthetic rubber comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
• B32B 25/16 - Layered products essentially comprising natural or synthetic rubber comprising polydienes or poly-halodienes
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 25/14 - Layered products essentially comprising natural or synthetic rubber comprising copolymers in which synthetic rubber constituents predominate
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

Abstract

A process for the production of butadiene from an ethanol feed having at least 80% by weight of ethanol, A) converting ethanol into acetaldehyde B) converting an ethanol/acetaldehyde mixture into butadiene, C1) hydrogen treatment, D1) butadiene extraction, a first butadiene purification D2), a subsequent butadiene purification D3), an effluent treatment E1), E2) eliminating impurities and brown oils and F) scrubbing with water.

IPC Classes  ?

• C07C 1/207 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as hetero atoms from carbonyl compounds
• C07C 1/20 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as hetero atoms
• C07C 7/11 - Purification, separation or stabilisation of hydrocarbonsUse of additives by absorption, i.e. purification or separation of gaseous hydrocarbons with the aid of liquids
• C07C 7/00 - Purification, separation or stabilisation of hydrocarbonsUse of additives
• C07C 45/00 - Preparation of compounds having C=O groups bound only to carbon or hydrogen atomsPreparation of chelates of such compounds

Abstract

The invention concerns a process for the production of butadiene from an ethanol feed comprising at least 80% by weight of ethanol, comprising a step for conversion of ethanol to acetaldehyde, a step for the extraction of butadiene, a step for scrubbing gaseous by-products with water, a step for eliminating impurities and brown oils, a step for treating effluents, a first butadiene purification step, and a subsequent butadiene purification step, said ethanol feed being supplied to said butadiene extraction step, the arrangement of the steps and recycles allowing the recycles to be maximized and allowing the water and energy consumption to be minimized.

IPC Classes  ?

• C07C 1/20 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as hetero atoms
• C07C 2/40 - Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation of dienes or alkynes of conjugated dienes
• B01D 11/04 - Solvent extraction of solutions which are liquid
• B01D 3/14 - Fractional distillation
• C07C 2/86 - Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation between a hydrocarbon and a non-hydrocarbon
• F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes

Abstract

p being an integer from 0 to 50.

IPC Classes  ?

• C07F 7/08 - Compounds having one or more C—Si linkages
• C08F 10/02 - Ethene

Abstract

The tire vulcanizing mould includes a plurality of segments for molding the outside of the tire tread. The segments are able to move radially between a position in which the mold is open and a position in which the mold is closed. The segments have frustoconical bearing surfaces that are placed radially on the outside. An axially mobile external ring, which acts on the frustoconical bearing surfaces, is placed radially on the outside of the segments in order to cause them to close and to move back from their position of closure in the mold. The external ring is radially preloaded towards the inside when the mold is in the open position.

IPC Classes  ?

• B29D 30/06 - Pneumatic tyres or parts thereof

Abstract

The tread has a total width W and two main grooves. The main grooves divide the tread into a middle region and edge regions. The middle region has an axial width Lm that is 45% to 70% of the total width W. The volume void ratio of the tread when new is less than 17%. An internal surface extends parallel to the tread surface when new and is in contact radially with the innermost points of the deepest main grooves. The middle part has a plurality of transverse sipes, each of which has a depth at least equal to the depth of the main grooves. The transverse sipes open into the main grooves. The middle region has a volume void ratio when new that is less than half the total volume void ratio of the tread, and at least one circumferential channel appears when the tread becomes part worn.

IPC Classes  ?

• B60C 11/03 - Tread patterns
• B60C 11/12 - Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
• B60C 11/04 - Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag
• B60C 11/11 - Tread patterns in which the raised area of the pattern consists only of isolated elements, e.g. blocks
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

Abstract

d that are able to at least partially face an outlet orifice 54 of said chamber. The intake and exhaust members are situated axially on either side of an internal partition 42 of the sleeve and are each mounted so as to bear axially against said partition.

IPC Classes  ?

• F04B 7/00 - Piston machines or pumps characterised by having positively-driven valving
• F04B 19/04 - Pumps for special use
• F04B 53/10 - ValvesArrangement of valves
• F04B 17/00 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors
• F04B 13/00 - Pumps specially modified to deliver fixed or variable measured quantities
• F04B 15/02 - Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
• F04B 19/22 - Other positive-displacement pumps of reciprocating-piston type

Abstract

A method and device for producing metal wire by sheathing a wire with an elastomer compound coming from an extruder is described herein. The aspects disclosed herein may include a feed canal for feeding a sheathing die, through which the wire is made to pass at a pre-established nominal speed. Various temperatures are controlled during the method based on a variety of parameters such as the measured speed at which the wire is moving is other than the nominal speed.

IPC Classes  ?

• B29C 48/154 - Coating solid articles, i.e. non-hollow articles
• B29C 48/25 - Component parts, details or accessoriesAuxiliary operations
• B29C 48/92 - Measuring, controlling or regulating
• B29C 48/285 - Feeding the extrusion material to the extruder
• B29C 48/86 - Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
• B29D 30/38 - Textile inserts, e.g. cord or canvas layers, for tyresTreatment of inserts prior to building the tyre
• B29B 15/12 - Coating or impregnating of reinforcements of indefinite length
• B29C 48/34 - Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
• B29C 48/88 - Thermal treatment of the stream of extruded material, e.g. cooling
• B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
• B29L 31/34 - Electrical apparatus, e.g. sparking plugs or parts thereof
• B29C 48/05 - Filamentary, e.g. strands
• B29K 21/00 - Use of unspecified rubbers as moulding material
• B29K 705/00 - Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
• B29L 30/00 - Pneumatic or solid tyres or parts thereof

Abstract

2/g, wherein the composition comprises an aromatic dicyclopentadiene plasticizing resin comprising essentially styrene, ethylene and dicyclopentadiene units, at a content ranging from 2 to 40 phr, the composition containing less than 5 phr of another plasticizer.

IPC Classes  ?

• C08L 9/06 - Copolymers with styrene
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08K 3/04 - Carbon
• C08L 57/02 - Copolymers of mineral oil hydrocarbons
• C08K 5/00 - Use of organic ingredients

Abstract

se.

IPC Classes  ?

• B29C 39/36 - Removing moulded articles
• B29C 45/40 - Removing or ejecting moulded articles
• G01M 17/02 - Tyres
• B29D 30/06 - Pneumatic tyres or parts thereof
• B29D 30/00 - Producing pneumatic or solid tyres or parts thereof
• B60C 99/00 - Subject matter not provided for in other groups of this subclass
• B29C 45/57 - Exerting after-pressure on the moulding material
• B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or
• B29C 33/00 - Moulds or coresDetails thereof or accessories therefor
• B29C 33/42 - Moulds or coresDetails thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves

Abstract

0.

IPC Classes  ?

• B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or
• B29D 30/06 - Pneumatic tyres or parts thereof

Abstract

The tread has a wearable thickness of material EMU and has raised elements delimited by grooves. Each solid part has a contact face and a cavity with a depth greater than 50% of the wearable thickness. Each cavity opens onto the contact face when new and is delimited by a wall surface and a bottom surface. Each wall surface deliminates a cavity that intersects the contact face along a corner edge contour that has a geometry that has a major axis which is at least 1.5 times the length of a minor axis when new. For any tread surface down to a predefined wear level, the level is at most 30% of the wearable thickness of material EMU, and the angle between the major axis and the circumferential direction is between 0 and 40 degrees. After the wear level, the angle is greater than 40 degrees.

IPC Classes  ?

• B60C 11/11 - Tread patterns in which the raised area of the pattern consists only of isolated elements, e.g. blocks
• B60C 11/24 - Wear-indicating arrangements
• B60C 11/03 - Tread patterns

Abstract

A, which is preferably divalent, is an atom or a group of atoms connecting Q to B.

IPC Classes  ?

• C08C 19/22 - Incorporating nitrogen atoms into the molecule
• C08L 15/00 - Compositions of rubber derivatives
• C08K 5/00 - Use of organic ingredients
• C08K 3/013 - Fillers, pigments or reinforcing additives

Abstract

A tire the tread of which contains at least three circumferential grooves, having at least three radially superposed layers of elastomeric compounds. A first elastomeric compound constituting the first layer forming the radially outer part of the tread has a maximum value of tan(δ)max, greater than 0.110, a second elastomeric compound constituting the second layer radially on the inside has a tan(δ)max at least 10% lower than the first elastomeric compound, the radially innermost third layer of the tread consists of at least two first parts and of at least three second parts axially, each one in contact with at least one of the at least two first parts, the at least two first parts axially centered on a radial plane passing through one of the at least three circumferential grooves consisting of the second compound and the at least three second parts consisting of a third elastomeric compound having a maximum value of tan(δ), denoted tan(δ)max, at least 10% lower than the second elastomeric compound.

IPC Classes  ?

• B60C 11/00 - Tyre tread bandsTread patternsAnti-skid inserts
• B60C 11/03 - Tread patterns

Abstract

C) hydration of ethylene fed by ethylene effluent and/or water effluent both from separation B, to produce an ethanol hydration effluent then being recycled to separation B.

IPC Classes  ?

• C07C 1/24 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as hetero atoms by elimination of water
• C07C 29/74 - SeparationPurificationStabilisationUse of additives
• C07C 1/20 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as hetero atoms
• C07C 1/207 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as hetero atoms from carbonyl compounds
• C07C 29/04 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2 by hydration of carbon-to-carbon double bonds

Abstract

The present invention relates to a modified diene elastomer predominantly comprising a species coupled via a group bearing a function comprising a silicon atom predominantly hydrolyzed into silanol and a tertiary amine function, linked to the diene elastomer via the silicon atom, and to the process for synthesizing the modified diene elastomer. This elastomer has the particular feature of not undergoing any change in Mooney viscosity during its storage.

IPC Classes  ?

• C08C 19/25 - Incorporating silicon atoms into the molecule
• C08C 19/44 - Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups of polymers containing metal atoms exclusively at one or both ends of the skeleton
• C08L 15/00 - Compositions of rubber derivatives
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08F 236/10 - Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated with vinyl aromatic monomers
• C08K 3/00 - Use of inorganic substances as compounding ingredients

Abstract

An Extruder for shaping a viscous material such as a blend of rubber is disclosed herein. The extruder includes a screw rotationally driven about an axis (XX′) in a barrel and bearing one or more helical flights extending radially outwards from a central shaft of the screw, the extruder comprising a material homogenization zone (H) through which a screw portion comprising interrupted flight elements forming empty annular spaces extends axially, and a barrel portion delimiting the said homogenization zone bearing flight elements extending radially inwards into the said empty annular spaces. According to the disclosure, the barrel portion delimiting the homogenization zone is itself rotationally driven about the axis XX′ to form a rotary barrel.

IPC Classes  ?

• B29C 47/92 - Measuring, controlling or regulating
• B29C 47/50 - using at least two screws, one after the other, e.g. multi-stage plasticisers
• B29B 7/50 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with rotary casing
• B29C 47/36 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
• B29C 47/60 - Screws
• B29B 7/42 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
• B29C 47/66 - Barrels or cylinders
• B29K 21/00 - Use of unspecified rubbers as moulding material

Abstract

A mold for a tire is disclosed herein. The mold includes first and second shells mold-able to lateral sidewalls of the tire, and a plurality of sectors that are distributed in the circumferential direction and are mold-able to the tread of said tire. The sectors are radially movable between an open position and a closed position of the mold. The mold also comprises at least one spacing interposed between each sector and each shell in order to keep said sector and the shells spaced apart in the radial direction in the closed position of the mold, such that the shells and the sectors are in contact in the radial direction only by way of the spacing. The spacing is also able to limit the heat transfer between the shells and the sectors in said closed position.

IPC Classes  ?

• B29D 30/06 - Pneumatic tyres or parts thereof

Abstract

A bicycle tire comprising at least one rubber composition based on at least one styrene/butadiene copolymer, SBR, having a Tg of greater than or equal to −65° C., at a content of greater than or equal to 50 parts per hundred parts of elastomer, phr, a reinforcing filler at a content of greater than 100 phr comprising at least carbon black, and a plasticizing system at a content of greater than 100 phris provided. The content of plasticizer is greater than the content of reinforcing filler and the weight fraction of elastomer in the composition is less than or equal to 33%.

IPC Classes  ?

• C08L 9/06 - Copolymers with styrene
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

Abstract

A method for synthesizing a modified polymer comprising epoxide groups along the polymer chain, by a hydrosilylation reaction of the unsaturations with a hydrosilane bearing an epoxide function in the presence of a suitable catalyst is provided. The method is simple, reproducible and able to be used on an industrial scale, and makes it possible to obtain high grafting yields, since they may reach 100%.

IPC Classes  ?

• C08F 236/10 - Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated with vinyl aromatic monomers
• C08C 19/25 - Incorporating silicon atoms into the molecule
• C08L 9/06 - Copolymers with styrene
• C08L 15/00 - Compositions of rubber derivatives

Abstract

A Method for manufacturing molding elements for molds is provided herein. The molds are used for molding tires provided with a tread with a circumferential arrangement of tread pattern elements. The method includes: a step consisting in aligning a plurality of basic linings; a step consisting in generating, from the basic tread circumference portion, an intermediate support; and obtaining an unfinished molding element from the intermediate support.

IPC Classes  ?

• B29D 30/06 - Pneumatic tyres or parts thereof
• B29C 33/38 - Moulds or coresDetails thereof or accessories therefor characterised by the material or the manufacturing process
• B29C 33/30 - Mounting, exchanging or centering
• B29L 30/00 - Pneumatic or solid tyres or parts thereof
• B29K 83/00 - Use of polymers having silicon, with or without sulfur, nitrogen, oxygen or carbon only, in the main chain, as moulding material
• B29L 31/00 - Other particular articles

Abstract

Cutting method for cutting a semi-finished molding element to yield segments of a mold for molding and vulcanizing tires is disclosed herein. The said molding element includes a plurality of segments originating from one and the same molding operation, the said molding element also includes at least one pair of male securing members on each side of a molding face to form the tread patterns in the tread of the tire that is to be molded.

IPC Classes  ?

• B29D 30/06 - Pneumatic tyres or parts thereof
• B24C 1/04 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
• B29C 33/38 - Moulds or coresDetails thereof or accessories therefor characterised by the material or the manufacturing process
• B23P 15/24 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies

Abstract

The tread includes over at least a first axial part (M) at least one wavy groove in a first direction and wavy grooves in a second direction. The wavy grooves in the second direction are connected to the wavy groove in the first direction. Over at least a second axial part (B) of the tread, at least one wavy groove continuous in a third direction, and wavy grooves continue in a fourth direction. The wavy grooves in the fourth direction are connected to the wavy groove in the third direction. When new, the open parts of the first axial part (M) are connected to one another, and the open parts of the second axial part (B) are not connected with one another. Beyond a part-wear condition, the open parts of the second axial part (B) are connected to one another, and the open parts of the first axial part (M) are not connected with one another.

IPC Classes  ?

• B60C 11/03 - Tread patterns
• B60C 11/12 - Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes

Abstract

A tire made of rubbery material having a sidewall includes a pattern formed on this sidewall. The pattern has a plurality of protruding elements, with the protruding elements having the form of spherical-cap portions having a radius, and, within the pattern, each protruding element interpenetrates with several adjacent protruding elements so that the distance between a tip of the protruding element and a tip of another adjacent protruding element is less than the diameter of the protruding element.

IPC Classes  ?

• B60C 13/02 - Arrangement of grooves or ribs
• B60C 13/00 - Tyre sidewallsProtecting, decorating, marking, or the like, thereof

Abstract

The invention relates to a modified diene elastomer comprising predominantly the entity functionalized in the middle of the chain by an alkoxysilane group, optionally partially or completely hydrolyzed to give silanol, bearing an epoxide function and the silicon atom of which bonds the two pieces of the chain, the chain ends of the modified diene elastomer being functionalized to at least 70 mol %, with respect to the number of moles of chain end, by an amine function.

IPC Classes  ?

• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• C08C 19/25 - Incorporating silicon atoms into the molecule
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08C 19/44 - Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups of polymers containing metal atoms exclusively at one or both ends of the skeleton
• C08C 19/40 - Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with oxygen or oxygen-containing groups with epoxy radicals
• C08F 236/10 - Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated with vinyl aromatic monomers
• C08K 3/36 - Silica

Abstract

Disclosed herein is a tread for a tire. The tread includes at least one elongate block of rubbery material of width W and length L with L>>W. This elongate block extends in a circumferential direction (X) when the tread is mounted on the tire. The elongate block includes a contact surface intended to come into contact with the ground and a first lateral wall and a second lateral wall delimiting this contact surface. The elongate block includes a plurality of sipes opening onto the contact surface of the elongate block, with each sine extending in an oblique direction opening onto the first lateral wall and onto the second lateral wall. The sipes are distributed over the contact surface of the block in such a way that when one sipe reaches the second lateral wall another sipe starts out from the first lateral wall, at a same circumferential level (N) on the elongate block. With the sipes delimiting sub-blocks in the elongate block, at least two of these sub-blocks are configured differently in the tread.

IPC Classes  ?

• B60C 11/12 - Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
• B60C 11/03 - Tread patterns
• B60C 11/04 - Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag

Abstract

A device and corresponding method for depositing a powder bed on a surface (1) is provided. The device comprises a deposition module (2) configured in order to scan the surface while delivering the powder onto the surface. The deposition module has at least one electromagnetic-response probe (5) capable of analysing a delivered portion (6) of the powder bed. The invention finds an application in sintering or selective laser melting machines.

IPC Classes  ?

• B33Y 10/00 - Processes of additive manufacturing
• B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
• B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• B33Y 50/02 - Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

Abstract

A mold for vulcanizing and molding a tire is disclosed herein. The tire includes a tread delimited by two sidewalls, and the mold includes a ring for molding the tread of the tire and two shells having tire-molding surface features for molding the sidewalls. At least one of the shells has a removable shell part extending circumferentially on the side of the sidewall of the tire to be molded, with the tire-molding surface features being incorporated into the removable shell part.

IPC Classes  ?

• B29D 30/06 - Pneumatic tyres or parts thereof
• B29C 33/30 - Mounting, exchanging or centering
• B29D 30/72 - Side-walls
• B29L 30/00 - Pneumatic or solid tyres or parts thereof
• B29C 33/42 - Moulds or coresDetails thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves

Abstract

The invention relates to a modified diene elastomer comprising predominantly the entity functionalized in the middle of the chain by an alkoxysilane group, optionally partially or completely hydrolyzed to give silanol, bearing a tertiary amine functional group and the silicon atom of which bonds the two pieces of the chain, the chain ends of the modified diene elastomer being functionalized to at least 70 mol %, with respect to the number of moles of chain end, by an amine functional group.

IPC Classes  ?

• C08C 19/25 - Incorporating silicon atoms into the molecule
• C08C 19/44 - Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups of polymers containing metal atoms exclusively at one or both ends of the skeleton
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08K 3/36 - Silica
• C08F 236/10 - Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated with vinyl aromatic monomers

Abstract

The invention relates to a modified diene elastomer comprising predominantly the entity functionalized in the middle of the chain by a silanol group, the silicon atom of which bonds the two pieces of the chain, the chain ends of the modified diene elastomer being functionalized to at least 70 mol %, with respect to the number of moles of chain end, by an amine functional group.

IPC Classes  ?

• C08C 19/25 - Incorporating silicon atoms into the molecule
• C08C 19/22 - Incorporating nitrogen atoms into the molecule
• C08C 19/44 - Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups of polymers containing metal atoms exclusively at one or both ends of the skeleton
• C08L 15/00 - Compositions of rubber derivatives
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08K 3/34 - Silicon-containing compounds
• C08K 3/013 - Fillers, pigments or reinforcing additives

Abstract

A drum for producing a tire casing blank comprises a support and sectors forming a circumferential face of the drum. Each sector has a circumferential outer face having a contour of general trapezoidal form and is mounted so as to be movable relative to the support in a non-radial predetermined direction relative to an axis of rotation of the drum and intercepting this axis.

IPC Classes  ?

• B29D 30/24 - Drums
• B29D 30/36 - Expansion of tyres in a flat form, e.g. of tyres built by the flat-tyre method or by jointly covering two bead-rings
• B29D 30/26 - Accessories or details, e.g. membranes or transfer rings
• B29K 105/00 - Condition, form or state of moulded material

Abstract

a content of less than or equal to 15% by weight of non-functional diene elastomer.

IPC Classes  ?

• C08L 9/06 - Copolymers with styrene
• C08C 19/25 - Incorporating silicon atoms into the molecule
• C08C 19/44 - Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups of polymers containing metal atoms exclusively at one or both ends of the skeleton
• C08L 15/00 - Compositions of rubber derivatives

Abstract

The present disclosure relates to devices for extruding plastics, notably mixtures of elastomers which are intended to be used in the manufacture of tires.

IPC Classes  ?

• B29B 7/42 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
• B29B 7/58 - Component parts, details or accessoriesAuxiliary operations
• B29C 48/25 - Component parts, details or accessoriesAuxiliary operations
• B29C 48/30 - Extrusion nozzles or dies
• B29C 48/51 - Screws with internal flow passages, e.g. for molten material
• B29C 48/52 - Screws with an outer diameter varying along the longitudinal axis, e.g. for obtaining different thread clearance
• B29C 48/575 - Screws provided with elements of a generally circular cross-section for shearing the melt, i.e. shear-ring elements

Abstract

Embodiments of the invention include a mold for forming a tire tread. The mold includes a tongue forming portion at an end of a tread forming portion. The tongue forming portion has a substantially constant thickness, except for a portion at an end of the tongue forming portion having a thickness greater than a thickness of a remainder of the tongue forming portion.

IPC Classes  ?

• B29C 33/42 - Moulds or coresDetails thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
• B29C 33/44 - Moulds or coresDetails thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
• B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or
• B29D 30/00 - Producing pneumatic or solid tyres or parts thereof
• B29D 30/54 - Retreading
• B29C 43/50 - Removing moulded articles
• B29D 30/06 - Pneumatic tyres or parts thereof
• B29C 33/00 - Moulds or coresDetails thereof or accessories therefor
• B29D 30/52 - Unvulcanised treads, e.g. on used tyresRetreading
• B29L 30/00 - Pneumatic or solid tyres or parts thereof

Abstract

2 and/or the texture having a plurality of substantially mutually parallel lamellae protruding from the sidewall, the spacing of the lamellae being less than or equal to 0.5 mm, each lamella having a mean width between 0.03 mm and 0.3 mm. The texture protrudes from the sidewall of the tire, and this texture surrounds all or part of the marking.

IPC Classes  ?

• B60C 13/02 - Arrangement of grooves or ribs
• B60C 13/00 - Tyre sidewallsProtecting, decorating, marking, or the like, thereof

Abstract

A tire mold equipped with features for protecting the tread mold segments from damage is described. One or more impact absorbers are positioned between tread mold segments and operate to preclude contact between the shoulders of the tread mold segments when such are biased back into their original position as a tire is removed from the tire mold. By precluding such contact, the tread mold segments are protected from damage that can affect the appearance of the cured tire.

IPC Classes  ?

• B29D 30/06 - Pneumatic tyres or parts thereof

Abstract

A ladder that employs an existing custom mold press frame to support itself thereon is provided along with a method of installation. A clamping engagement system employed by such a ladder is also provided along with a kit for installing the ladder with a mold press frame.

IPC Classes  ?

• E06C 1/00 - Ladders in general
• E06C 1/39 - Ladders having platformsLadders changeable into platforms
• E06C 1/397 - Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders characterised by having wheels, rollers, or runners
• E06C 7/18 - Devices for preventing persons from falling
• E06C 9/12 - Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with rigid longitudinal members laterally displaceable

Abstract

A tire work stand comprises a frame for supporting the work stand on a ground surface and for attaching a set of components to the tire work stand. A plurality of rollers is attached to the frame to support a tire above the ground surface and to permit rotation of a tire during inspection of the tire. A ramp is configured to have a first ramp end capable of extending from the ground surface and a second ramp end extending to a position proximal to the frame. A bridge is configured to have a first bridge end extending from the second ramp end and a second bridge end extending to a position proximal to a surface of at least one of the rollers, wherein the bridge acts to inhibit rotation of the roller during loading of the tire and further permits rotation of the tire after the tire has been loaded on the tire work stand.

IPC Classes  ?

• B66F 7/24 - Lifting frames, e.g. for lifting vehiclesPlatform lifts for raising or lowering vehicles by their own power
• B60B 30/02 - Means for holding wheels or parts thereof engaging the tyre, e.g. the tyre being mounted on the wheel rim
• A47F 7/04 - Show stands, hangers, or shelves, adapted for particular articles or materials for tyresShow stands, hangers, or shelves, adapted for particular articles or materials for wheels
• B60B 30/00 - Means for holding wheels or parts thereof

Abstract

Tread for a civil engineering tire, provided with circumferential grooves and transverse grooves, having two edge rows provided with a plurality of blocks, which in pairs delimiting a groove of transverse overall orientation opening both onto a circumferential groove and to the outside of the tread, each block having a contact face to contact the ground, two lateral faces—an external lateral face and an internal lateral face, a front face and a rear face, intersecting the contact face along a front edge corner and a rear edge corner, the blocks formed such that their external lateral faces lie the same distance from an equatorial plane that divides the tread into two equal halves wherein the width of the transverse grooves increases progressively at least from a non-zero distance measured from a plane parallel to the equatorial plane through the axially outermost points of the external lateral faces of the blocks wherein the maximum increase in width of a transverse groove is at least equal to 20% and at most equal to 50% of the maximum circumferential length Lc of each block.

IPC Classes  ?

• B60C 11/11 - Tread patterns in which the raised area of the pattern consists only of isolated elements, e.g. blocks
• B60C 11/13 - Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
• B60C 11/03 - Tread patterns

Abstract

A part obtained by selective melting of a powder on a support plate having a main element and rigid secondary elements arranged between the main element and the support plate, and adapted to be detached from the main element. All or part of the secondary elements comprises a body of thickness E and a head of width L greater than the thickness E of this body, the body connected to the support plate and the head connected to main element. All or part of the secondary elements includes a region of connection between the head and the body. The head of the secondary element extends over at most half the height H of this element.

IPC Classes  ?

• B29D 30/06 - Pneumatic tyres or parts thereof
• B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
• B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
• B33Y 80/00 - Products made by additive manufacturing
• B33Y 10/00 - Processes of additive manufacturing
• B23K 26/342 - Build-up welding
• B23K 15/00 - Electron-beam welding or cutting
• B23K 26/00 - Working by laser beam, e.g. welding, cutting or boring
• B28B 1/00 - Producing shaped articles from the material
• B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• B29C 64/40 - Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
• B23K 103/00 - Materials to be soldered, welded or cut
• B29L 31/00 - Other particular articles

Abstract

The extrusion apparatus includes a screw in a fixed barrel. The barrel has a feed inlet and an outlet with an extrusion nozzle which discharges into the nip between first and second rotary rolls that can rotate in opposite directions. The apparatus also has a first means for rotating and a first control means that are able to synchronize the speed of rotation of the first roll and the screw and has a second means that is able to rotate the second screw at a different speed of rotation than the first roll. The first control means can regulate the speed of rotation of the screw depending on the width of the strip, and a second control means can regulate the speed of rotation of the second roll depending on the thickness of the strip.

IPC Classes  ?

• B29C 43/24 - Calendering
• B29C 47/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04)
• B29C 47/32 - Roller-extrusion nozzles
• B29C 47/92 - Measuring, controlling or regulating
• B29C 43/22 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of indefinite length
• B29C 43/46 - Rollers
• B29C 43/58 - Measuring, controlling or regulating
• B29K 21/00 - Use of unspecified rubbers as moulding material
• B29L 30/00 - Pneumatic or solid tyres or parts thereof

Abstract

2/g and a COAN of between 65 ml/100 g and 85 ml/100 g.

IPC Classes  ?

• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• B60C 17/00 - Tyres characterised by means enabling restricted operation in damaged or deflated conditionAccessories therefor
• B60C 5/00 - Inflatable pneumatic tyres or inner tubes

Abstract

roller The roller speed is adjusted as a function of the corrected value Ks′ of the proportionality coefficient.

IPC Classes  ?

• B29C 43/46 - Rollers
• B29C 48/355 - Conveyors for extruded articles
• B29K 21/00 - Use of unspecified rubbers as moulding material
• B29C 48/35 - Extrusion nozzles or dies with rollers
• B29C 48/395 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
• B29C 48/08 - Flat, e.g. panels flexible, e.g. films
• B29C 48/92 - Measuring, controlling or regulating
• B29C 43/24 - Calendering
• B29C 43/22 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of indefinite length
• B29C 48/30 - Extrusion nozzles or dies
• B29L 30/00 - Pneumatic or solid tyres or parts thereof

Abstract

an applicator roller having a deformable profile is applied to the front edge of said ply and pressure is exerted in the radial direction across the width of said ply, and said drum is made to rotate. At least one of the gripping pads mounted in a movable manner with respect to the adjacent pads between a position in which all of the pads are located in a single plane and a second position in which at least said pad is vertically offset with respect to the adjacent pads to adapt the profile of said transverse row of pads to the curved profile of the meridian line of said second laying surface.

IPC Classes  ?

• B29D 30/30 - Applying the layersGuiding or stretching the layers during application
• B29D 30/00 - Producing pneumatic or solid tyres or parts thereof
• B29D 30/28 - Rolling-down or pressing-down the layers in the building process
• B65H 19/28 - Attaching the leading end of the web to the replacement web-roll core or spindle
• B29D 30/44 - Stretching or treating the layers before application on the drum

Abstract

Tire for a civil engineering vehicle comprising a tread of high initial thickness E, this thickness corresponding to the thickness of material which can be worn during use, this tread comprising a smooth rolling surface, i.e. without any recesses, intended to come into contact with the ground during rolling, this tread being limited axially by lateral faces, these lateral faces being extended radially on the tire by sidewalls, this tread being provided with a wear indicator device to visually indicate a wear level of the said tread, this tire being such that the wear indicator device comprises, in combination, a plurality of grooves formed on at least one of the lateral faces of the tread and, for each groove, a visual index indicating a wear level corresponding to the percentage of the initial thickness E remaining to be worn.

IPC Classes  ?

• B60C 11/01 - Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered
• B60C 11/24 - Wear-indicating arrangements
• B60C 11/03 - Tread patterns

Abstract

The heavy-duty vehicle tire according to the invention has a satisfactorily improved rolling resistance/wear resistance compromise.

IPC Classes  ?

• C08F 136/08 - Isoprene
• C08L 47/00 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bondsCompositions of derivatives of such polymers
• B29D 30/08 - Building tyres
• B60C 11/00 - Tyre tread bandsTread patternsAnti-skid inserts
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08C 19/22 - Incorporating nitrogen atoms into the molecule
• C08K 3/36 - Silica
• C08L 15/00 - Compositions of rubber derivatives
• C08L 9/02 - Copolymers with acrylonitrile

Abstract

Improving endurance of bead of radial tire for heavy vehicle. Tire has two beads (2) contacting rim (3) connected by carcass reinforcement (4) having carcass layer (5), with main part (6) wrapped, in each bead (2), axially from inside towards outside of the tire, around bead wire (7) having diameter (L), to form turnup (8) having free end (E). Each bead (2) has filling element (9) with filling compound (10) and extending radially towards outside from bead wire (7) and axially between turnup (8) and main part (6). The distance (I) between turnup (8) and main part (6) decreases continuously from bead wire (7) as far as a first minimum distance (a) reached at a first point (A) of turnup (8), then increases continuously from the first point (A) of turnup (8) as far as a first maximum distance (b) reached at a second point (B) of turnup (8).

IPC Classes  ?

• B60C 15/00 - Tyre beads, e.g. ply turn-up or overlap
• B60C 15/06 - Flipper strips, fillers, or chafing strips
• B60C 5/00 - Inflatable pneumatic tyres or inner tubes
• B60C 9/02 - Carcasses

Abstract

A rubber composition based on a reinforcing filler and on an elastomeric matrix comprising a highly saturated diene elastomer, comprising units of the following categories A, B, C, D and E, or units of these same categories A, B, C, D and E comprising, for at least one of the categories B, C, D and E, a mixture of at least two different units of the same category which differ from one another through the nature of their side groups Ri: and where R1, R2, R3 and R4, which are identical or different, denote a hydrogen atom, a methyl radical or a phenyl radical which is substituted or unsubstituted in the ortho, meta or para position by a methyl radical; R5 denotes a hydrogen atom or a methyl radical; R6 denotes a methyl radical or a phenyl radical which is substituted or unsubstituted in the ortho, meta or para position by a methyl radical; m, n, o, p and q are numbers ranging from 0 to 100. This rubber composition enables a satisfactory degree of stiffness to be achieved while maintaining acceptable hysteresis properties, or even improving them, for use in the manufacture of tires for motor vehicles.

IPC Classes  ?

• C08F 236/06 - Butadiene
• C08F 236/10 - Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated with vinyl aromatic monomers
• C08K 3/04 - Carbon
• C08K 3/36 - Silica
• C08C 19/02 - Hydrogenation
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08L 15/00 - Compositions of rubber derivatives
• C08L 7/00 - Compositions of natural rubber
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• C08L 61/04 - Condensation polymers of aldehydes or ketones with phenols only
• C08L 91/00 - Compositions of oils, fats or waxesCompositions of derivatives thereof
• C08L 93/00 - Compositions of natural resinsCompositions of derivatives thereof

Abstract

A tire with a radial carcass reinforcement, having a crown reinforcement, itself capped radially by a tread connected to two beads by two sidewalls, having at least two radially superposed layers of elastomeric compounds; a first layer, forming the radially outer part of the tread, has a first elastomeric compound having a modulus G* greater than 1.8 MPa, a second layer of elastomeric compounds radially on the inside of and in contact with the said first layer of elastomeric compound has at least three parts, the axially outer parts having a second elastomeric compound having a maximum value of tan (δ), denoted tan (δ) max, strictly less than 0.060, and at least a part of the second layer, axially in contact with at least an axially outer part having a third compound with modulus G* greater than 1.2 MPa and at least 5% less than the first elastomeric compound and a maximum value of tan (δ), tan (δ)max, between 0.060 and 0.120.

IPC Classes  ?

• B60C 11/00 - Tyre tread bandsTread patternsAnti-skid inserts
• B60C 5/00 - Inflatable pneumatic tyres or inner tubes
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

Abstract

3) is less than 6, a third layer radially furthest towards the inside of at least five parts, at least the axially outer parts of a third elastomeric compound having a maximum value of tan(δ), denoted tan(δ)max, of less than 0.080, at least two parts of the second compound, and at least part of the third layer, that radially extends the at least one part of the second layer of the third elastomeric compound.

IPC Classes  ?

• B60C 11/00 - Tyre tread bandsTread patternsAnti-skid inserts
• B60C 5/00 - Inflatable pneumatic tyres or inner tubes
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• B60C 19/08 - Electric-charge-dissipating arrangements

Abstract

A snow tire tread having a plurality of blocks separated by grooves and provided with sipe incisions dividing into several parts from a certain depth onwards, (complex sipes each having, when viewed in cross section, a rectilinear first part extending radially from the tread surface of the tread, and a second part extending the first part and comprising at least two branches each having an end. The tread has cavities each extending between the branches of a complex sipe and having a bottom situated at the same level as the ends of the branches. The cavities and the grooves of the tread are configured so that this tread has a voids surface ratio at the end of wear greater than or equal to 35%. Furthermore, the distance (D) between two branches of two adjacent complex sipes is at least equal to 2 mm.

IPC Classes  ?

• B60C 11/11 - Tread patterns in which the raised area of the pattern consists only of isolated elements, e.g. blocks
• B60C 11/12 - Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
• B60C 11/03 - Tread patterns

Abstract

The machine for breaking a part of a tire down into pieces includes a frame and a tire support which is adapted to support a part of the tire. The machine also has a supplying device which is configured to feed the part of the tire to a cutting station which includes a cutting device. The cutting device has a first blade and a second blade that are pivotable with respect to one another at a fulcrum. At least one of the first and second blades has a concave shape and cooperates with the other blade to keep the part of the tire inside of the blades. The supplying device includes a movable unit which can pivot about a vertical axis between first and second positions.

IPC Classes  ?

• B62D 3/00 - Steering gears
• B26D 3/00 - Cutting work characterised by the nature of the cut madeApparatus therefor
• B26D 1/09 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates of the guillotine type with a plurality of cutting members
• B26D 5/04 - Means for moving the cutting member into its operative position for cutting by fluid pressure
• B26D 7/06 - Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
• B26D 7/01 - Means for holding or positioning work
• B26D 1/00 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor

Abstract

and means for manipulating the movable element, to manipulate the movable element from a first position to a second position to carry out releasing of the cord from the hook.

IPC Classes  ?

• B26D 3/00 - Cutting work characterised by the nature of the cut madeApparatus therefor
• B29B 17/02 - Separating plastics from other materials
• C22B 1/00 - Preliminary treatment of ores or scrap
• B29L 30/00 - Pneumatic or solid tyres or parts thereof

Abstract

means for adjusting a diameter of the wall.

IPC Classes  ?

• B29D 30/24 - Drums
• B60C 9/02 - Carcasses
• B29K 21/00 - Use of unspecified rubbers as moulding material

Abstract

A pneumatic tire tread that maintains a good level of water drainage performance up to the final stage of wear of a tread part formed with a plurality of flexible fences which are disposed inside at least one main groove extending from the bottom surface of the main groove and obstructing at least 70% of the cross-sectional area of the main groove, the flexible fences comprising an inside portion having a connecting part which is connected to the main groove, and an outside portion which is radially outside a predetermined height D1 from the bottom surface of the main groove, and the average angle of inclination of the inside portion with respect to a line perpendicular to the surface of the tread part in contact with the road surface is greater than the average angle of inclination of the outside portion.

IPC Classes  ?

• B60C 11/13 - Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
• B60C 11/24 - Wear-indicating arrangements
• B60C 11/04 - Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag
• B60C 11/03 - Tread patterns

Abstract

The method includes the step of running a cutting means between two threads of the reinforcing ply. The method proceeds with the steps of measuring; a discrepancy between an actual cutting line (A′B′C′) and a theoretical cutting line (ABC) is measured and determining a point of intersection of the actual cutting line (B′) with a reference longitudinal line (XX′) placed on the strip. The actual cutting line (B′C′) of that part of the rubber profiled elements that are not superposed with the reinforcing ply is longitudinally offset (Z) with respect to the theoretical cutting line (BC) so that the actual cutting line (B′C′) meets the reference longitudinal line (XX′) at the point of intersection (B′) of the reinforcing ply (A′B′) with the reference longitudinal line (XX′). The rubber profiled elements that are not superposed with the reinforcing ply are cut along the said actual cutting line.

IPC Classes  ?

• B29D 30/46 - Cutting textile inserts to required shape

Abstract

A tire component comprising a rubber composition having a highly unsaturated diene elastomer and a reinforcing filler with a methylene acceptor selected from 3-hydroxydiphenyl-amine, 4-hydroxydiphenyl-amine or combinations thereof. Such rubber compositions further include a methylene donor, wherein a ratio of the methylene acceptor to the methylene donor may be greater than 10:1 or in other embodiments greater than 10:1 but no more than 50:1 or between 15:1 and 30:1. A method for manufacturing a tire component includes mixing together components of a rubber composition into a non-productive mix, the components including a highly unsaturated diene elastomer, a reinforcing filler and a methylene acceptor selected from 3-hydroxydiphenyl-amine, 4-hydroxydiphenyl-amine or combinations thereof; and mixing a methylene donor and a vulcanizing agent into the non-productive mix to convert the non-productive mix to a productive mix.

IPC Classes  ?

• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• C08L 7/00 - Compositions of natural rubber
• C08K 3/36 - Silica
• C08K 3/04 - Carbon
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08K 5/17 - AminesQuaternary ammonium compounds
• C08K 5/18 - AminesQuaternary ammonium compounds with aromatically bound amino groups

Abstract

2+0.11266 LI−0.185.

IPC Classes  ?

• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• B60C 11/00 - Tyre tread bandsTread patternsAnti-skid inserts
• B60C 3/02 - Closed, e.g. toroidal, tyres
• B60C 3/04 - Tyres characterised by transverse section characterised by the relative dimensions of the section, e.g. low profile
• B60C 11/03 - Tread patterns
• B60C 13/00 - Tyre sidewallsProtecting, decorating, marking, or the like, thereof
• B60C 15/00 - Tyre beads, e.g. ply turn-up or overlap

Abstract

The machine presents a working zone that is defined in an upper part of a build sleeve which is fixedly mounted in a chassis. Within the working zone, the object is supported by a build plate which slides inside the build sleeve when driven in vertical translation by the head of an actuating cylinder which is placed along a central axis of the sleeve. The build plate is positioned inside a transport container which is arranged removably between the sleeve and the actuating cylinder. The machine also includes a means for moving the transport container vertically into contact with the build sleeve. The container is open at its top and at its bottom so that, when the actuating cylinder is actuated, the head thereof can transfer the plate between the transport container and the build sleeve which forms a build envelope around the plate.

IPC Classes  ?

• B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• B22F 3/00 - Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sinteringApparatus specially adapted therefor
• B23K 15/00 - Electron-beam welding or cutting
• B28B 1/00 - Producing shaped articles from the material
• B23K 26/342 - Build-up welding
• B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• B29C 64/20 - Apparatus for additive manufacturingDetails thereof or accessories therefor

Abstract

A sensor support is provided for tire inspection or testing that can be used over a range of tire profiles and widths to place one or more sensors at a surface of the tire. The shape or profile of the sensor support is adjustable to accommodate tire surfaces of different shapes or profiles. A locking feature can be provided to maintain the shape of the sensor support during use.

IPC Classes  ?

• G01M 17/02 - Tyres
• B60C 23/04 - Signalling devices actuated by tyre pressure mounted on the wheel or tyre
• B60C 19/00 - Tyre parts or constructions not otherwise provided for

Abstract

A tire of which the tread contains at least two layers of blended elastomeric compounds that are radially superposed and have a voids ratio that is lower in the central part than at the axially outer parts. A first layer of blended elastomeric compounds of the tread is made up of a first blended elastomeric compound forming a part extending at least into the region of the equatorial plane and of at least two axially outer parts formed of a second blended elastomeric compound, the first blended elastomeric compound having a Z-value higher than 55 and a tan(δ)max value lower than 0.120, the second blended elastomeric compound having a Z-value higher than 50 and a tan(δ)max value lower than 0.100, and the complex modulus G*1% at 100° C. of the second blended elastomeric compound having a value at least 5% higher than that of the modulus G*1% at 100° C. of the first blended elastomeric compound.

IPC Classes  ?

• B60C 11/00 - Tyre tread bandsTread patternsAnti-skid inserts
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

Abstract

g) recovering diene elastomer.

IPC Classes  ?

• C08F 36/04 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
• C08F 36/08 - Isoprene
• C08F 2/01 - Processes of polymerisation characterised by special features of the polymerisation apparatus used
• B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
• B01J 19/18 - Stationary reactors having moving elements inside

Abstract

2/g, and a coupling agent for bonding the reinforcing inorganic filler to the elastomer.

IPC Classes  ?

• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• B60C 15/06 - Flipper strips, fillers, or chafing strips
• C08L 7/00 - Compositions of natural rubber
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• C08K 3/04 - Carbon
• C08K 3/36 - Silica
• C08K 5/548 - Silicon-containing compounds containing sulfur
• C08L 71/02 - Polyalkylene oxides

Abstract

Particular embodiments of the invention include methods and apparatus for molding and/or curing an article. Particular embodiments of such methods include positioning a mold core centrally within mold outer portion to form an annular mold cavity between the mold outer portion and the mold core, the core including an outer ring having an outer surface for engaging the annular article, the outer ring being formed of a material capable of expanding and contracting with changes in temperature. Such methods also include heating the mold outer ring, cooling the core outer ring subsequent to the step of heating, whereby the core outer ring contracts relative to the article, and removing the article from the core outer ring.

IPC Classes  ?

• B29C 35/02 - Heating or curing, e.g. crosslinking or vulcanising
• B29D 30/00 - Producing pneumatic or solid tyres or parts thereof

Abstract

d—repeat the preceding steps until several superposed consolidated layers are formed with improved properties forming the object.

IPC Classes  ?

• C21D 1/00 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
• B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
• B22F 3/24 - After-treatment of workpieces or articles
• B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
• B33Y 10/00 - Processes of additive manufacturing
• B33Y 30/00 - Apparatus for additive manufacturingDetails thereof or accessories therefor
• B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling
• B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• B33Y 80/00 - Products made by additive manufacturing

Abstract

The subject matter of the present invention relates generally to a vehicle that has axles with tires mounted thereon with at least one axle that is a lift axle, and more specifically, to a method that optimizes the effective tire rolling resistance by adjusting the load on the tires, resulting in an improvement in the fuel economy of the vehicle. According to one embodiment, the method takes into consideration the rolling resistance characteristics of the tires placed onto the axles of the vehicle and provides an algorithm for optimizing their rolling resistance by raising or lowering the lift axle.

IPC Classes  ?

• B62D 61/12 - Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with variable number of ground-engaging wheels, e.g. with some wheels arranged higher than others, or with retractable wheels
• B60G 17/017 - Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load the regulating means comprising electric or electronic elements characterised by their use when the vehicle is stationary, e.g. during loading, engine start-up or switch-off

Abstract

Assembly comprising a tire and a mounting rim, the tire comprising two beads each comprising at least one annular reinforcing structure and a carcass reinforcement anchored in the two beads by a turn-up, each bead comprising a filler of a rubber composition extending radially a radial distance DBE from the radially innermost point of the annular reinforcing structure, DBE being less than or equal to 10% of the radial height H of the tire, at least one sidewall further comprising a stiffening reinforcement of metallic reinforcing elements oriented at an angle less than or equal to 10 degrees to the circumferential direction, and positioned such that the distance DAE between the radially innermost point of the annular reinforcing structure and the radially outer end of the stiffening reinforcement is greater than or equal to 20% and less than or equal to 40% of H and that the distance DAI between the radially inner point of the annular reinforcing structure and the radially inner end of the stiffening reinforcement is less than or equal to 20% of H.

IPC Classes  ?

• B60C 15/00 - Tyre beads, e.g. ply turn-up or overlap
• B60C 15/06 - Flipper strips, fillers, or chafing strips
• B60C 13/00 - Tyre sidewallsProtecting, decorating, marking, or the like, thereof
• B60C 9/28 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers characterised by the belt or breaker dimensions or curvature relative to carcass
• B60C 9/00 - Reinforcements or ply arrangement of pneumatic tyres
• B60C 9/02 - Carcasses

Abstract

during the molding of the lateral face driving with the blade a cut part of the cover layer into the green tire so that the lateral face of the raised element is partially or fully covered.

IPC Classes  ?

• B29D 30/66 - Moulding treads on to tyre casings, e.g. non-skid treads with spikes
• B29D 30/06 - Pneumatic tyres or parts thereof
• B29D 30/68 - Cutting profiles into the treads of tyres
• B29D 30/52 - Unvulcanised treads, e.g. on used tyresRetreading
• B29K 9/06 - SB polymers, i.e. butadiene-styrene polymers
• B29K 67/00 - Use of polyesters as moulding material
• B29K 311/10 - Natural fibres, e.g. wool, cotton

Abstract

A tire comprising a crown reinforcement formed from at least two working crown layers of reinforcing elements and at least one layer of circumferential reinforcing elements, wherein, the tensile modulus of elasticity at 10% elongation of at least one skim coat of at least one working crown layer is greater than 9 MPa and the maximum value of tan(δ), denoted tan(δ)max, of said skim coat is less than 0.100.

IPC Classes  ?

• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• B60C 9/18 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
• B60C 9/20 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel
• B60C 9/00 - Reinforcements or ply arrangement of pneumatic tyres
• C08K 3/04 - Carbon

Abstract

2. The tire also comprises on the said sidewall at least two ribs that pass through the pattern and between which strands of the pattern are present, the said ribs being distant from one another by at most 10 mm, each rib having a height of at least 0.25 mm and a mean width of at least 0.20 mm, the said pattern following the relief formed by the ribs.

IPC Classes  ?

• B60C 13/00 - Tyre sidewallsProtecting, decorating, marking, or the like, thereof
• B60C 13/02 - Arrangement of grooves or ribs
• B23K 26/00 - Working by laser beam, e.g. welding, cutting or boring
• B29C 33/42 - Moulds or coresDetails thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
• B29D 30/06 - Pneumatic tyres or parts thereof
• B23K 26/361 - Removing material for deburring or mechanical trimming
• B29D 30/72 - Side-walls

Abstract

m) at a point of inflection (I) of the leading profile, and the radius of curvature (R) at any point (M), positioned axially between the axially outermost point (E) and the point of inflection (I), is at least equal to 0.4 times the height of the bar.

IPC Classes  ?

• B60C 11/03 - Tread patterns

Abstract

1) between the first segment of turn-up and the main part.

IPC Classes  ?

• B60C 15/00 - Tyre beads, e.g. ply turn-up or overlap
• B60C 9/02 - Carcasses
• B29D 30/06 - Pneumatic tyres or parts thereof
• B60C 15/04 - Bead cores
• B60C 15/06 - Flipper strips, fillers, or chafing strips

Abstract

A tire having aggressive tread features with improvements in uniformity that can also improve endurance is provided along with a method and apparatus for manufacturing such a tire. The tire and its manner of manufacture can achieve a reduction or elimination of certain non-uniformities that can occur during the molding of large tread blocks. The reduction or removal of these non-uniformities can improve temperature performance to provide increased tire endurance.

IPC Classes  ?

• B29D 30/52 - Unvulcanised treads, e.g. on used tyresRetreading
• B29D 30/06 - Pneumatic tyres or parts thereof
• B60C 11/03 - Tread patterns
• B60C 11/13 - Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
• B60C 11/11 - Tread patterns in which the raised area of the pattern consists only of isolated elements, e.g. blocks

Abstract

A tire work stand comprises a frame for supporting the work stand on a ground surface and for attaching a set of components to the tire work stand. A plurality of rollers is attached to the frame to support a tire above the ground surface and to permit rotation of a tire during inspection of the tire. A ramp is configured to have a first ramp end capable of extending from the ground surface and a second ramp end extending to a position proximal to the frame. A bridge is configured to have a first bridge end extending from the second ramp end and a second bridge end extending to a position proximal to a surface of at least one of the rollers, wherein the bridge acts to inhibit rotation of the roller during loading of the tire and further permits rotation of the tire after the tire has been loaded on the tire work stand.

IPC Classes  ?

• A47F 7/04 - Show stands, hangers, or shelves, adapted for particular articles or materials for tyresShow stands, hangers, or shelves, adapted for particular articles or materials for wheels
• B60B 30/00 - Means for holding wheels or parts thereof

Abstract

Disclosed herein is an example of a tire, and arrangements of multiple tires for a heavy goods vehicle having a tread provided on one side of the equatorial median plane with a sculpture of a first kind and on the other side of the equatorial median plane with a sculpture of a second kind, the first kind of sculpture comprising at least three grooves of generally circumferential orientation. The tired disclosed herein is provided to avoid having to change tires at the change of season, notably of the arrival of winter, on a heavy goods vehicle and more particularly on the drive axles of the said vehicle for which these changes require additional work.

IPC Classes  ?

• B60C 11/03 - Tread patterns
• B60C 11/04 - Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag
• B60C 19/00 - Tyre parts or constructions not otherwise provided for

Abstract

The present invention concerns methods and apparatus for spreading beads in a tire. Particular embodiments of such methods include positioning a tire adjacent an automated material abrading tool, the tire having: a central opening bounded radially by an inner bead diameter; an interior tire cavity extending radially outward from the inner bead diameter; and an interior tire cavity opening extending between opposing an annular beads of the tire, the cavity being positioned between the central cavity and the interior tire cavity. Such methods may also include securing at least a portion of the first bead of the tire and positioning a tire spreader within the central opening of the tire, the tire spreader having a bead engaging portion for engaging a portion of the second bead generally opposite the secured portion of the first bead.

IPC Classes  ?

• B24B 19/00 - Single purpose machines or devices for particular grinding operations not covered by any other main group
• B60C 25/14 - Apparatus or tools for spreading tyre beads

Abstract

A tire tread having a layered design is provided. In a first layer of the tread, sipes extend transversely to provide traction in the first stage of the wear life of the tread. In a second layer of the tread, the width of the sipes along the circumferential direction is increased to provide for improved traction in a second stage of the wear life. The increased width is provided by a void that opens to a circumferential groove only along one end. Because the void opens only along one end, a decrease in acoustical effects such as drive by noise can be provided.

IPC Classes  ?

• B60C 11/12 - Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
• B60C 11/03 - Tread patterns
• B60C 11/04 - Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag

Abstract

The present invention comprises tire treads having sipes or other voids formed of non-curable inserts, as well as methods for forming sipes or other voids within a tread using non-curable inserts and apparatus for performing the same. Such methods include providing an uncured tread having a width and a thickness bounded by an outer side and a bottom side. Such methods further include providing a strip of non-curable material, the strip having a width and a length. Furthermore, such methods include inserting the strip of non-curable into the tread thickness from the tread outer side and to a predetermined depth within the tread thickness to form a void-forming insert within the tread thickness. Finally, these methods include curing the tread with the non-curable strip arranged within the tread thickness. The inserts may be folded, which may occur as the strips are inserted into the tread or prior to such insertion.

IPC Classes  ?

• B29D 30/68 - Cutting profiles into the treads of tyres
• B60C 11/12 - Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
• B60C 11/18 - Anti-skid inserts, e.g. vulcanised into the tread band or strip form, e.g. metallic combs, rubber strips of different wear resistence
• B29D 30/58 - Applying bands of rubber treads, i.e. applying camel backs
• B29D 30/52 - Unvulcanised treads, e.g. on used tyresRetreading
• B60C 11/14 - Anti-skid inserts, e.g. vulcanised into the tread band
• B29D 30/66 - Moulding treads on to tyre casings, e.g. non-skid treads with spikes

Abstract

Disclosed is an apparatus and methodology for detecting contact within a monitored area. A piezoelectric sensor is attached to one end of a detector which is positioned for contact by passing items or individuals. The detector may correspond to a plurality of parallel, rubber calendared cables or a strip of polycarbonate resin. Body deformations induced into the detector upon contact travel to the piezoelectric sensor and are detected as strain coupled to the piezoelectric sensor. The apparatus and methodology may be employed to detect vehicular traffic along travel paths, human contact with walls or floors, manufactured product contact with delivery systems or any other physical contact by animate or inanimate objects or individuals.

IPC Classes  ?

• G01L 1/10 - Measuring force or stress, in general by measuring variations of frequency of stressed vibrating elements, e.g. of stressed strings
• G01G 19/02 - Weighing apparatus or methods adapted for special purposes not provided for in groups for weighing wheeled or rolling bodies, e.g. vehicles