摘要:
The present invention relates to a pneumatic tyre provided with a tread, such that the tread comprises at least one thermoplastic elastomer, which is a block copolymer comprising at least one elastomer block and at least one thermoplastic block, and hollow microparticles.
摘要:
The invention relates to a tyre comprising a tread, a crown with a crown ply, two sidewalls, two beads, and a casing ply anchored to the two beads and extending from one sidewall to another. The tread comprises at least one thermoplastic elastomer, said thermoplastic elastomer being a block copolymer comprising at least one elastomer block and at least one thermoplastic block, the total thermoplastic elastomer content being within a range varying from 65 to 100 pce (parts by weight per hundred parts of elastomer).
摘要:
The invention relates to a rubber composition that can be used in particular for the manufacture of tyres, based on one or more diene elastomers, on one or more reinforcing fillers and on a crosslinking system, comprising particles of one or more thermoplastics chosen from thermoplastics having melting points or softening points ranging from 80°C to 300°C, said composition containing one or more compatibilizers chosen from block copolymers comprising at least a first diene elastomer block, and at least a second thermoplastic block compatible with said thermoplastic(s).
摘要:
The invention relates to a pneumatic object provided with an inflation-gas-tight elastomer layer, said elastomer layer comprising at least a styrene thermoplastic elastomer with a polyisobutylene block, characterised in that the tight elastomer layer also comprises a polyphenylene ether (PEE).
摘要:
The invention relates to a pneumatic object provided with an inflation-gas-tight elastomer layer, characterised in that said elastomer layer comprises at least a mixture of: a thermoplastic elastomer with a polyisobutylene block in a proportion A; and a butyl rubber in a proportion B, the ratio of A/B varying between 1 and 20 and A and B being expressed in weight.
摘要:
The invention relates to a rubber composition which can be used to produce tyres and which is based on at least one diene elastomer, an inorganic reinforcing filler and a coupling agent which is used to join the inorganic filler and the elastomer. The inventive composition is characterised in that the aforementioned inorganic filler comprises a synthetic aluminosilicate having formula (I) Mx Si Aly Oa (OH)b, (H20)c, wherein: M is a cation which is selected from the group comprising K+, Na+, Ca++ and mixtures of said cations; x > 0; y > 0; a ≥ 0; b ≥ 0, c ≥ 0 and a+b > 0, and having the following characteristics: (a) a specific surface area (BET) of between 20 and 300 m2/g; (b) an average particle size in mass (dW) of between 20 and 400 nm; and (c) a deagglomeration speed (α), using ultrasound, which is greater than 5.10-4 µm-1/min. The invention also relates to the use of one such rubber composition for the production of rubber articles, in particular tyres or semi-finished rubber products, such as treads, which are intended for tyres.
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:
A radial tyre (1) for a motor vehicle, comprising a crown (2) having a tread (3) provided with at least one radially external portion (3a) intended to enter into contact with the road; two inextensible beads (4), two sidewalls (5) linking the beads (4) to the tread (3), a carcass reinforcement (6) passing into the two sidewalls (5) and anchored in the beads (4); a crown reinforcement or belt (7) disposed circumferentially between the radially external portion (3a) of the tread (3) and the carcass reinforcement (6); a radially internal elastomer layer (8), called "sub-layer", different in composition from the composition of the radially external portion (3a) of the tread, said sub-layer itself being disposed circumferentially between the radially external portion (3a) of the tread (3) and the carcass reinforcement (6), characterized in that said sub-layer comprises at least one thermoplastic elastomer, said thermoplastic elastomer being a block copolymer comprising at least one elastomer block and at least one thermoplastic block, the total amount of thermoplastic elastomer being in a range varying from 65 to 100 phr (parts by weight per hundred parts of elastomer), said sub-layer also comprising at least one magnetic filler.