The present invention relates to a thermoplastic resin composition. More particularly, the present invention relates a thermoplastic resin composition including 100 parts by weight of a base resin including (a) an aromatic vinyl compound-conjugated diene-based compound-vinyl cyan compound copolymer and (b) an aromatic vinyl compound-vinyl cyan compound copolymer; and (c) greater than 0.05 parts by weight and less than 11 parts by weight of a polyolefin oxide-based triblock copolymer, and a molded article including the same. In accordance with the present invention, the thermoplastic resin composition having superior chemical resistance and paintability with identical or superior impact strength, fluidity, and heat resistance, to conventional thermoplastic resin compositions, and a molded article including the same are provided.

The present invention relates to a thermoplastic resin composition. More particularly, the present invention relates a thermoplastic resin composition including 100 parts by weight of a base resin including (a) an aromatic vinyl compound-conjugated diene-based compound-vinyl cyan compound copolymer and (b) an aromatic vinyl compound-vinyl cyan compound copolymer; and (c) greater than 0.05 parts by weight and less than 11 parts by weight of a polyolefin oxide-based triblock copolymer, and a molded article including the same. In accordance with the present invention, the thermoplastic resin composition having superior chemical resistance and paintability with identical or superior impact strength, fluidity, and heat resistance, to conventional thermoplastic resin compositions, and a molded article including the same are provided.

Compared to the prior art, this invention provides a functionalized highly syndiotactic polystyrene, comprising a repeating unit having a structure represented by formula (I), or comprising a repeating unit having a structure represented by formula (I) and a repeating unit having a structure represented by formula (II). It is indicated by the experimental results that the syndiotacticity selectivity of the highly syndiotactic polymer provided by this invention is no less than 90%, and the proportion of the repeating unit having a structure represented by formula (I) in the polymer may be arbitrarily adjusted and may be up to 100%. Meanwhile, the oxygen- or sulfur-containing groups in the polymer may increase the polarity of the highly syndiotactic polystyrene so as to increase the blendability of the highly syndiotactic polystyrene with other polymers.

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Compared to the prior art, this invention provides a functionalized highly syndiotactic polystyrene, comprising a repeating unit having a structure represented by formula (I), or comprising a repeating unit having a structure represented by formula (I) and a repeating unit having a structure represented by formula (II). It is indicated by the experimental results that the syndiotacticity selectivity of the highly syndiotactic polymer provided by this invention is no less than 90%, and the proportion of the repeating unit having a structure represented by formula (I) in the polymer may be arbitrarily adjusted and may be up to 100%. Meanwhile, the oxygen- or sulfur-containing groups in the polymer may increase the polarity of the highly syndiotactic polystyrene so as to increase the blendability of the highly syndiotactic polystyrene with other polymers.

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It is an object to provide a tire having an excellent balance of wet grip performance and chipping resistance. The tire is a tire comprising a tread, wherein the tread has a lateral groove neither of both ends of which opens into circumferential grooves, wherein a predetermined rubber component, a predetermined filler, and a silane coupling agent are compounded in a rubber layer of a tread surface, wherein a brittleness temperature of the rubber component and a ratio of a groove depth at the deepest part of the groove bottom of the lateral groove neither of both ends of which opens into the circumferential grooves to a thickness of the entire tread are made to lie in predetermined ranges.

It is an object to provide a tire having an excellent balance of wet grip performance and chipping resistance. The tire is a tire comprising a tread, wherein the tread has a lateral groove neither of both ends of which opens into circumferential grooves, wherein a predetermined rubber component, a predetermined filler, and a silane coupling agent are compounded in a rubber layer of a tread surface, wherein a brittleness temperature of the rubber component and a ratio of a groove depth at the deepest part of the groove bottom of the lateral groove neither of both ends of which opens into the circumferential grooves to a thickness of the entire tread are made to lie in predetermined ranges.

The present invention provides a pneumatic tire including a tread formed from a rubber composition that can simultaneously highly improve initial grip performance and stable grip performance during the middle and late periods of running, and further can reduce the occurrence of blowing even during high-temperature running. The present invention relates to a pneumatic tire including a tread, the tread being formed from a rubber composition containing a diene rubber, the rubber composition further containing a hydrogenated terpene aromatic resin obtained by hydrogenation of the double bonds of a terpene aromatic resin, the hydrogenated terpene aromatic resin having a degree of hydrogenation of double bonds of 5-100%, a hydroxyl value of 20 mg KOH/g or less, and a softening point of 116-180° C., the hydrogenated terpene aromatic resin being present in an amount of 1-50 parts by mass per 100 parts by mass of the diene rubber.

A pneumatic tire that specifies the tire mounting direction when mounted on a vehicle and has sufficiently improved grip performance at high-speed turning is provided in which the cap rubber layer on the outermost layer of the tread is divided in the tire width direction, the cap rubber layer located on the outside of the vehicle is formed of a rubber composition containing 25% by mass or less of styrene in the rubber component and having a glass transition temperature of −18° C. or higher, and, when the carbon black content ratio is C.sub.OUT (mass %), and the ground contact area ratio is L.sub.OUT, in the cap rubber layer located on the outside of the vehicle, and the carbon black content ratio is C.sub.IN (mass %) and the ground contact area ratio is L.sub.IN in the cap rubber layer located inside the vehicle, the following (Formula 1) and (Formula 2) are satisfied.

C.sub.IN<C.sub.OUT  (Formula 1)

0≤(C.sub.OUT×L.sub.OUT)−(C.sub.IN×L.sub.IN)  (Formula 2)

A pneumatic tire that specifies the tire mounting direction when mounted on a vehicle and has sufficiently improved grip performance at high-speed turning is provided in which the cap rubber layer on the outermost layer of the tread is divided in the tire width direction, the cap rubber layer located on the outside of the vehicle is formed of a rubber composition containing 25% by mass or less of styrene in the rubber component and having a glass transition temperature of −18° C. or higher, and, when the carbon black content ratio is C.sub.OUT (mass %), and the ground contact area ratio is L.sub.OUT, in the cap rubber layer located on the outside of the vehicle, and the carbon black content ratio is C.sub.IN (mass %) and the ground contact area ratio is L.sub.IN in the cap rubber layer located inside the vehicle, the following (Formula 1) and (Formula 2) are satisfied.

C.sub.IN<C.sub.OUT  (Formula 1)

0≤(C.sub.OUT×L.sub.OUT)−(C.sub.IN×L.sub.IN)  (Formula 2)

This tire laminate comprises a film of a thermoplastic resin composition and a layer of a rubber composition, and is characterized in that the rubber composition contains at least one type of rubber component, a condensate of formaldehyde and the compound represented by formula (1) (R.sup.1 to R.sup.5 in the formula are defined in the specification), at least one type of methylene donor and a vulcanizing agent, and in that there are 0.5-20 parts by mass of the condensate per total 100 parts by mass of the at least one type of rubber component, there are 0.25-200 parts by mass of the at least one type of methylene donor per total 100 parts by mass of the at least one type of rubber component, the mass ratio of the at least one type of methylene donor and the condensate is 0.5:1-10:1, and, based on the total amount of the at least one type of rubber component, the at least one type of rubber component includes 10-80 mass % of rubber in which the vinyl content in side chains of aliphatic unsaturated hydrocarbons exceeds 11 mol %. This tire laminate exhibits improved adhesive strength between the film of the thermoplastic resin composition and the layer of the rubber composition.

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