摘要:
An airtight elastomeric laminate for tyres, wherein said laminate comprises at least two superposed layers of elastomer: a first layer, consisting of a composition based on at least one thermoplastic elastomer comprising polystyrene and polyisobutylene blocks, the amount of thermoplastic elastomer comprising polystyrene and polyisobutylene blocks being included within a range of more than 50 to 100 phr (parts by weight by 100 parts by weight of elastomer); a second layer, consisting of a composition based on at least one diene elastomer, the amount of diene elastomer being included within a range of more than 50 to 95 phr, and on at least one styrene thermoplastic elastomer (TPS), the amount of styrene thermoplastic elastomer being included within a range of from 5 to less than 50 phr.
摘要:
The present invention concerns a tyre comprising a tread, a crown with a crown reinforcement, two sidewalls, two beads, a carcass reinforcement anchored to the two beads and extending from one sidewall to the other, characterised in that the tread comprises a composition made from at least one diene elastomer, at a level of between 35 and 99 phr (parts by weight per hundred parts of elastomer), a thermoplastic elastomer, at a level of between 1 and 65 phr, said thermoplastic elastomer being a block copolymer comprising at least one optionally hydrogenated butadiene-styrene random copolymer elastomer block and at least one styrene thermoplastic block.
摘要:
The invention relates to a tyre provided with an inner layer having improved sealing, said layer comprising at least one rubber composition containing at least one or more diene elastomers, the total content thereof being between 1 and 99 pph (parts per hundred parts of elastomer), one or more thermoplastic elastomers including a polyisobutylene block, the total content thereof being between 1 and 99 pph, optionally between 0 and 120 pph of a reinforcing filler, and a cross-linking system.
摘要:
An inflatable object provided with an inflating gas-tight layer, having improved hysteresis and improved leak sealing; said layer comprises an elastomer composition comprising at least, as sole elastomer or as majority elastomer by weight, one thermoplastic elastomer ("TPE") and a hydrocarbon-based resin, of which the glass transition temperature of the hydrocarbon-based resin is above 0°C. The TPE elastomer is a copolymer comprising at least one polyisobutylene central block and the composition optionally also comprises an elastomer extender oil. According to another optional embodiment, the composition also comprises a lamellar filler in particular selected from graphites and phyllosilicates, such as micas, clays or talcs. The inflatable object of the invention is in particular an inner tube or an inflatable tyre for a motor vehicle.
摘要:
Inflatable article provided with an elastomer layer that is impermeable to the inflation gases, characterized in that said elastomer layer comprises at least one blend of a thermoplastic elastomer having a polyisobutylene block in proportion A and of a partially crosslinked butyl rubber in proportion B; the A/B ratio varying between 1 and 20; A and B being expressed by weight.
摘要:
The invention relates to a tyre comprising a tread, a crown with a bracing ply, two sidewalls, two bead fillers, and a casing ply attached to the two bead fillers and extending from one sidewall to the other, wherein the tread comprises at least one thermoplastic elastomer, said thermoplastic elastomer being a block copolymer comprising at least an elastomer block of the optionally hydrogenated butadiene-styrene statistical copolymer type, and at least an styrene-type thermoplastic block, and the total value of thermoplastic elastomer being between 65 and 100 pce (parts by weight per hundred parts of elastomer).
摘要:
A sealed elastomeric laminate for a tyre, said laminate comprising at least two superimposed layers of elastomer: a first layer, consisting of a composition made from at least one polystyrene and polyisobutylene block thermoplastic elastomer, the level of polystyrene and polyisobutylene block thermoplastic elastomer being within a range from more than 50 to 100 phr (parts by weight per 100 parts by weight of elastomer), and from a plasticising system comprising from 1 to 40 phr of a plasticising oil and from 1 to 40 phr of a hydrocarbon resin, the total level of plasticiser being within a range from 2 to 70 phr; a second layer, consisting of a composition made from at least one diene elastomer, the level of diene elastomer being within a range from more than 50 to 95 phr, and from at least one styrenic thermoplastic elastomer (TPS), the level of styrenic thermoplastic elastomer being within a range from 5 to less than 50 phr.
摘要:
The invention relates to a tire provided with a tread having an improved seal, wherein said tread includes at least one rubber composition at least comprising a total amount of between 1 and 99 pce (parts by weight for 100 parts of elastomer) of one or more diene elastomers, a total amount of between 1 and 99 pce of one or more thermoplastic elastomers having a polyisobutylene block, and optionally an amount of 0 to 200 pce of a reinforcing filler, and a cross-linking system.