Sumitomo Rubber Industries Patente

Provided are a rubber composition and a tire that have excellent overall performance in terms of fuel economy, abrasion resistance, and wet grip performance. The rubber composition contains a silane coupling agent, the silane coupling agent including an organosilicon compound containing at least one of a silanol group or an alkoxysilyl group, the silane coupling agent having a ratio (percentage of a dimer/total percentage of a monomer and a dimer) of a percentage of a dimer of the organosilicon compound relative to a total percentage of a monomer and the dimer of the organosilicon compound of 0.40 or lower.

A golf ball 2 has a plurality of dimples 10 on a surface thereof. An occupation ratio X of the dimples is 70% or more. A value Z of the golf ball 2, calculated by the following mathematical formula, is less than 0.0. Z=−535.36*Db+146.46*Lb−238.52*Da+225.22*La+111.21Db: drag coefficient under a first conditionLb: lift coefficient under the first conditionDa: drag coefficient under a second conditionLa: lift coefficient under the second conditionFirst conditionReynolds number: 1.20 * 10⁵Ratio (rω/V): 0.131Second conditionReynolds number: 0.83 * 10⁵Ratio (rω/V): 0.179The ratio (rω/V) is calculated by dividing a product of a radius r (m) and a backspin rate ω (rad/s) of the golf ball 2 by a speed V (m/s) of the golf ball 2.

A pneumatic tire (1) having a protruding portion (25) including a top portion (26) and a rim fit profile (27). In a tire meridian section of the pneumatic tire (1) in a standard state, a parameter X relating to rim chafing resistance performance, defined by X = (A+10) × B × Hs × E/10<5>, is 34 or more, where A: the shortest distance from the top portion (26) to a rim flange (16); B: a distance from the top portion (26) to a tire radial direction line (RL) defining a rim width; Hs: a rubber hardness of a bead apex rubber (8); E: a modulus of a carcass ply (6A) calculated by E = (F/G) × H; G: an intermediate elongation (%) of a carcass cord under a constant load F; F: the constant load (N) applied when obtaining the intermediate elongation G; and H: ends of the carcass cords.

A pneumatic tire 1 includes a tread portion 2, and a sound damper 11 made of a porous material and fixed to a tire inner cavity surface 15s of the tread portion 2. The sound damper 11 extends in a tire circumferential direction along a tire equator C. In a 70% load-applied state where the pneumatic tire 1 is fitted on a standardized rim at a standardized internal pressure, 70% of a standardized load is applied to the pneumatic tire 1, and the pneumatic tire 1 is brought into contact with a flat surface at a camber angle of 0 degrees, a ground-contact surface 14 of the tread portion 2 has a ratio L/Lm of a maximum ground-contact length L in the tire circumferential direction to a ground-contact length Lm, in the tire circumferential direction, within a range centered on the tire equator C and equal to or less than 70% of a maximum ground-contact width W in a tire axial direction, and the ratio L/Lm satisfies the following formula (1): 1.00 < L / Lm < 1.10 <img class="EMIRef" id="6d888a8c-dd71-42ae-b6cf-483644f019c2-ia01" />

Provided is a tire 1 that can improve wet performance and heat dissipation property from an early stage of wear to a late stage of wear while maintaining rolling resistance performance and wear resistance performance. The tire 1 includes a tread 10 having a tread surface TRS. The tread 10 has a plurality of circumferential grooves 300. The plurality of circumferential grooves 300 divide the tread 10 into a plurality of land portions 200, and have a pair of circumferential main grooves 330 and at least one circumferential narrow groove 320. The circumferential narrow groove 320 has a narrow width portion 321 and an enlarged width portion 322. A groove width NIW of the narrow width portion 321 has a width at which, when the tire 1 comes into contact with the road surface, side walls (321a, 321b) of the narrow width portion 321 come into contact with each other. At least one of the land portions 200, which is adjacent to the circumferential narrow groove 320, has a plurality of pinholes 100. A depth PHD of the pinhole 100 is shallower than a depth CMD of the circumferential main groove 330. The pinhole 100 has a shape tapering toward the inner side in the tire radial direction. The relationship between a width L1 of the land portion 200 having the pinhole 100 and a distance L2 from the circumferential narrow groove 320 to the pinhole 100 satisfies the following Formula (1): 0.3 ≤ L 2 / L 1 ≤ 0.7 <img class="EMIRef" id="073c77b3-bed1-4340-86eb-7e24600469af-ia01" />

A tire 2 includes a tread 4 and a reinforcing layer 14. The tread 4 includes a rubber composition containing a rubber component and a filler. The rubber component contains SBR and isoprene-based rubber. The filler contains carbon black and silica. The reinforcing layer 14 includes a reference full band BF. An amount CNR of the isoprene-based rubber, an amount BCB of the carbon black, and a cord count Ej of the reference full band BF satisfy the following relational expression. CNR + BCB × Ej ≥ 900 <img class="EMIRef" id="afca1508-8445-4f7d-9fb4-343fe5c0bf85-ia01" />

A tire 2 includes a tread 4 and a reinforcing layer 14. The tread 4 includes a rubber composition containing a rubber component and a filler. The rubber component contains SBR and isoprene-based rubber. The filler contains carbon black and silica. The reinforcing layer 14 includes a reference full band BF. An amount CNR of the isoprene-based rubber, an amount BCB of the carbon black, and a ratio (Wj/Wt) of an axial width Wj of the reference full band BF to an axial width Wt of the tread 4 satisfy the following relational expression. CNR + BCB × Wj / Wt ≥ 27.0 <img class="EMIRef" id="4518fd5a-c5c6-4614-b11c-ce11b246765a-ia01" />

A tire 2 includes a tread 4 and a reinforcing layer 14. The tread 4 includes a rubber composition containing a rubber component and a filler. The rubber component contains SBR and isoprene-based rubber. The filler contains carbon black and silica. The reinforcing layer 14 includes a reference belt ply BP and a reference full band BF. An amount CNR of the isoprene-based rubber, an amount BCB of the carbon black, an inclination angle Ab of a belt cord 46 of the reference belt ply BP, and an inclination angle Aj of a band cord 52 of the reference full band BF satisfy the following relational expression. CNR+BCB/Ab+Aj≥1.80

The present invention provides a tire having both dry grip performance and grip performance on snow improved in a well-balanced manner, and the tire comprises a tread portion (2) and a belt layer (8) provided on an inner side of the tread portion in a tire radial direction, the tread portion is formed from a rubber composition containing styrene-butadiene rubber having a styrene content of 25% by mass or less as a rubber component, the belt layer includes a metal cord as a reinforcing cord, in at least one layer, the metal cords is arranged to form an angle of 30 degrees or more with respect to a tire circumferential direction, and a ratio (St/AG), calculated from a value of the styrene content St (% by mass) of the styrene-butadiene rubber and a value of the angle AG (degrees) formed by the metal cord with respect to the tire circumferential direction, is less than 0.8.

A pneumatic tire (1) includes a first ground contact edge (Te1), a ground contact surface (3a) extending therefrom to a second ground contact edge (Te2), a first side outer surface (6a) extending radially inward therefrom, and a tread portion (3) having a first shoulder land region (5A) demarcated by a first shoulder circumferential groove (4A) and the first ground contact edge. A first virtual line (L1) is a tangent line at an axial midpoint (Pm) of the first shoulder land region inclined at an angle from 74 to 80° and a second virtual line (L2) is a tangent line at a first position (P1) of the first side outer surface inclined at an angle from 36 to 40° relative to the tire radial direction. A radial first distance (t) from the first ground contact edge to the tire equator (C) is 2% to 6% of a ground contacting width (TW).

A pneumatic tire has a profile including a ground contact surface and a first side outer surface. The ground contact surface has a first virtual line inclined at a first angle of 74 to 80 degrees relative to a tire radial direction. The first side outer surface has a second virtual line inclined at a second angle of 36 to 40 degrees relative to the tire radial direction. The tread portion has a belt layer including belt cords arranged therein at an angle λ relative to a tire circumferential direction. A ride comfort index (λ×t/TW) is from 1.0 to 2.0. The ride comfort index is defined by the angle λ in degree, a first distance (t) in millimeter in the tire radial direction from a first ground contact edge to a tire equator on the ground contact surface, and a ground contacting width (TW) in millimeter.

A heavy duty tire 2 includes a tread 4 having one or more center circumferential grooves 16. A center portion 28 of the tread 4 includes center land portions 22 each including lateral grooves 32 arranged in the center portion 28 such that a reference lateral groove and a corresponding lateral groove respectively located on one side and another side in a circumferential direction constitute one lateral groove pair. Second and first ends Es and Ef of the reference lateral groove and the corresponding lateral groove in the lateral groove pair are at the same position in the circumferential direction. The one or more center circumferential grooves 16 include at least one circumferential narrow groove 44 having a pair of wall surfaces 44S that come into contact with each other at a narrow groove portion 48 when the tread 4 comes into contact with a road surface and becomes deformed.

A pneumatic tire 1 includes, on a first side portion 3A, first side blocks 11 arranged on a first tire circumferential line Y1 and second side blocks 12 arranged on a second tire circumferential line Y2. The first side blocks 11 and the second side blocks 12 are spaced apart in a tire circumferential direction, but overlap in tire radial and circumferential directions. An overlapping length Ha in the tire radial direction by which the first side block 11 and the second side block 12 overlap is 30% to 60% of a maximum length H2 in the tire radial direction of the second side block 12. An overlapping length La in the tire circumferential direction by which the first side block 11 and the second side block 12 overlap is 5% or more of a maximum length L2 in the tire circumferential direction of the second side block 12.

Provided is a tire with excellent wet grip performance. The tire includes a tread including a rubber composition, the tread having a circumferential groove, the rubber composition containing a rubber component including a rubber having an amino group; a filler including silica; and an ionic bonding coupling agent, the tire satisfying the relationship: D × S > 300 wherein D represents a maximum depth (mm) of the circumferential groove, and S represents an amount (parts by mass) of the silica per 100 parts by mass of the rubber component.

A tire 1 has a plurality of circumferential grooves 3 and a plurality of land portions 4. The plurality of land portions 4 include an outer land portion 4A disposed on the outermost side in the tire axial direction, and an inner land portion 4B disposed inward of the outer land portion 4A in the tire axial direction. The outer land portion 4A has a plurality of outer sipes 5 extending across the outer land portion 4A. The inner land portion 4B has a plurality of inner sipes 6 extending across the inner land portion 4B. The inner sipes 6 include a first inner sipe 6A and a second inner sipe 6B. The first inner sipe 6A has a wide portion 8 on a side inward of a sipe body portion 7 in the tire radial direction. The second inner sipe 6B does not have the wide portion 8 on a side inward of the sipe body portion 7 in the tire radial direction.

A pneumatic tire 1 includes at least one electronic component 21. The electronic component 21 is covered with a cover rubber having an electrical resistivity of 1.0×10<10> Ω·cm or more. When a height Ha of a bead apex rubber 8 in a tire radial direction from an outer surface 5a of a bead core 5 is less than 25 mm, the electronic component 21 is placed in a region between 5 mm or more and 25 mm or less from the outer surface 5a of the bead core 5 to an outer side in the tire radial direction. When the height Ha of the bead apex rubber 8 is 25 mm or more, the electronic component 21 is placed in a region A2 between 5 mm or more from the outer surface 5a of the bead core 5 to the outer side in the tire radial direction and an outer end 8e in the tire radial direction of the bead apex rubber 8 or therebelow.

A tire 2 includes a tread 4. A state where the tire 2 is fitted on a standardized rim, an internal pressure of the tire 2 is adjusted to 290 kPa, and no load is applied to the tire 2 is a reference state of the tire 2. A ratio CD/CW of a distance CD in a radial direction from an equator Eq of the tire 2 to a reference ground-contact end PC to a distance CW in an axial direction from the equator Eq of the tire 2 to the reference ground-contact end PC in the tire 2 in the reference state is 0.040 or more and 0.092 or less. A thickness TA of the tread 4 at the equator Eq is 6.0 mm or more and 8.0 mm or less.

An iron-type golf club head comprises a face portion having a striking face having an imaginary impact point which is located on a vertical line passing through the midpoint in the toe-heel direction between a toe side end and a heel side end of the face lines and 18 mm above from the lower end of the striking face. The face portion includes a thin portion having a first thickness of 2.0 to 4.0 mm and a thick portion having a second thickness being at least 4.0 mm and larger than the first thickness by at least 1.0 mm. The thin portion is formed within an imaginary circle of 10 mm radius centered on the imaginary impact point. The thick portion surrounds the thin portion and forms at least the range of an imaginary circle of 15 mm radius centered on the imaginary impact point.

Provided is a tire comprising a belt, and an internal member arranged on the inner side of the belt in a tire radial direction, the belt comprising at least one belt ply that has a metal cord and a topping rubber covering the metal cord, wherein A is 0.03 parts by mass or less, where A represents a cobalt content, in parts by mass, based on 100 parts by mass of a rubber component in a rubber composition constituting the topping rubber, wherein the internal member is composed of a rubber composition comprising a water permeation-suppressing filler, and wherein A and B satisfy the following inequality (1), B/A+5>1, where B represents a content, in parts by mass, of the water permeation-suppressing filler based on 100 parts by mass of a rubber component in the rubber composition constituting the internal member.

A green tire forming method comprises: a step S1 of preparing a strip of rubber sheet G1 elongated in a first direction D1 and having a constant width L0; a step S2 of cutting the strip of rubber sheet in a second direction D2 intersects the first direction D1 to form a rectangular or parallelogram-shaped rubber sheet piece G2; a step S3 of winding the rubber sheet piece G2 around a cylindrical body 13a so that the cut edges E1 of the rubber sheet piece G2 become parallel to the circumferential direction of the cylindrical body 13a; and a step S4 of joining edges E2 of the rubber sheet piece G2 to form an annular body G3.

A motorcycle tire (1) includes crown blocks (4) including first crown blocks (6) and second crown blocks (7). Each of the first crown blocks (6) has a heel-side edge (11) formed in a V-shape and inclined at an angle (α1) of 10 degrees or less on both axial sides with respect to the tire axial direction. A total number of the first crown blocks (6) is 30% or more of a total number of the crown blocks (4). A first ground contacting surface shape (6a) of each of the first crown blocks (6) has a maximum length (W1) in the tire axial direction from 60% to 70% of a tread width. Each of the second crown blocks (7) has a second ground contacting surface shape (7a) having a maximum length (WC) in the tire axial direction smaller than the maximum length (W1) of the first ground contacting surface shape (6a).

The tire vulcanizing apparatus 100 comprises: a vulcanization mold 1 for vulcanization-molding the outer surface of an unvulcanized tire T; a vulcanization bladder 2 being expandable within the inner cavity of the unvulcanized tire 2 to press the unvulcanized tire T against the vulcanization mold 1; a heating device 3 for heating the heat transfer medium G; a supply device 4 for supplying the heated thermal medium G into the inside of the vulcanization bladder 2; and a volume decreasing means 5 disposed in the vulcanization bladder 2 to decrease the volume of a filling space GS to be filled with the thermal medium G.

A motorcycle tire (1) includes crown blocks (4) including first crown blocks (6) and second crown blocks (7). Each of the first crown blocks (6) has a heel-side edge (11) formed in a V-shape and inclined at an angle (α1) of 10 to 45 degrees on both axial sides with respect to the tire axial direction. A total number of the first crown blocks (6) is in the range from 30% to 70% of a total number of the crown blocks (4). Each of the second crown blocks (7) has a second ground contacting surface shape (7a) having a maximum length (WC) in the tire axial direction smaller than a maximum length (W1) in the tire axial of the first ground contacting surface shape (6a) of each of the first crown blocks (6).

A tread 4 of a tire 2 includes a base layer 30 containing a filler including carbon black and silica. A ratio Sr of a content BSi of the silica to a total of a content BCB of the carbon black and the content BSi of the silica is greater than 0.20. The tread 4 includes land portions 12 separated by a circumferential main groove 10. A ratio Ur of a thickness TU of the base layer 30 to a depth DGm of the circumferential main groove 10 is 0.20 or more and 0.60 or less. At least one of the land portions 12 includes a sipe 26 having a bottom 26T within the base layer 30. The ratio Sr, the thickness TU of the base layer 30, and a depth DU of the sipe 26 in the base layer 30 satisfy a relational expression: Sr × DU/TU ≥ 0.010.

Provided is a technique for detecting the rotation of attachment positions of tires in a vehicle. A tire position rotation detection device includes an acquisition unit, a first calculation unit, a second calculation unit, and a rotation determination unit. The acquisition unit acquires a rotational speed of each of tires while a vehicle is traveling. The first calculation unit calculates a first indicator. The second calculation unit calculates a second indicator. The rotation determination unit determines whether or not rotation of attachment positions of the tires has been performed before the vehicle starts traveling based on the first indicator and the second indicator. The rotation determination unit determines that the rotation of the tires has been performed before the vehicle starts traveling when a change in the first indicator from an initial value exceeds a predetermined first threshold value and a change in the second indicator from an initial value is equal to or below a predetermined second threshold value.

A tire 2 includes a tread 4 and a band 16. The tread 4 has an outer surface 4G including a crown portion 64, a pair of middle portions 66, and a pair of shoulder portions 68. The crown portion 64 has a contour represented by an arc having a radius TR1 not less than 5 times and not greater than 7 times an axial width Wa of a ground-contact surface of the tire 2 in a standard state. The band 16 includes a band cord 56 composed of an organic fiber cord. At a position corresponding to 70% of a maximum width SW of the tire 2 in the standard state, the band cord 56 has a contraction ratio SRs not less than 70% and not greater than 130% of a contraction ratio SRc of the band cord 56 on an equator plane of the tire 2.

Provided is a tire comprising a tread part provided with a plurality of blocks, wherein the tread part is composed of a rubber composition comprising a rubber component, and wherein L is less than 30, 75°C M<300> is 5.0 or more, and L, 70°C tan δ, and 75°C M<300> satisfy the following inequality (1): L 0.5 × 70 ° C tan δ / 75 ° C M 300 ≥ 0.13 <img class="EMIRef" id="0c050ea3-4af8-435e-85dc-8ab68c7812e9-ia01" /> where L represents a land ratio, in %, of the tread part, 70°C tan δ represents a tan δ at 70°C of the rubber composition, and 75°C M<300> represents a modulus, in MPa, at 300% elongation at 75°C of the rubber composition.

Provided is a pneumatic tire comprising a carcass, a reinforcing layer, and a cap tread, wherein A<1>, A<2>, W<1>, W<2>, 30°C E*c and K satisfy the following inequalities: A 2 − A 1 > 0 ; W 1 / W 2 > 0.30 ; and 30 ° C E * c > K / A 2 − A 1 × W 1 − 0.3 × W 2 <img class="EMIRef" id="319565b1-a13a-4221-b004-e05963db8e68-ia01" /> where A<1> represents an angle of carcass cord inclined from the tire circumferential direction on the tire center line, A<2> represents an angle of carcass cord inclined from the tire circumferential direction at a tire maximum width position, W<1> represents a land part width of a land part closest to the tire center line among the land parts, W<2> represents a land part width of a land part adjacent to an outer side in a tire axial direction of the land part closest to the tire center line, 30°C E*c represents a complex elastic modulus at 30°C of the cap tread, and K represents a constant.

Provided is a pneumatic tire comprising a carcass, a reinforcing layer, and a cap tread, wherein A₁, A₂, Da, Db, 30°C E*c and K satisfy the following inequalities:|A₂-A₁|>0; Db/Da>0.50; and 30°C E*c>K/{|A₂-A₁|×(Db-0.5×Da)}where A₁ represents an angle of carcass cord inclined from the tire circumferential direction on the tire center line, A₂ represents an angle of carcass cord inclined from the tire circumferential direction at a tire maximum width position, Da represents the shortest distance between the carcass cord and the belt cord, Db represents the shortest distance between the belt cord and the band cord, 30°C E*c represents a complex elastic modulus at 30°C of the cap tread, and K represents a constant.

Provided is a pneumatic tire comprising a carcass, a reinforcing layer, and a cap tread, wherein the following inequalities are satisfied, (1) A 2 − A 1 > 0 (2) L 1 / L 2 > 0.30 (3) 30 ° CE * c > K / A 2 − A 1 × L 1 − L 2 × 0.3 <img class="EMIRef" id="9a0e1778-f6ea-4b29-9d88-9fa5e978fda3-ia03" /> (where K is 310) where A<1> represents an angle, in degrees, at which a carcass cord inclines from a tire circumferential direction at a position on a tire center line, A<2> represents an angle, in degrees, at which the carcass cord inclines from the tire circumferential direction at a tire maximum width position, L<1> represents a land ratio, in %, of a region including a tire equator, L<2> represents a land ratio, in %, of a pair of regions including tread ends, 30°CE*c represents a complex elastic modulus at 30°C of a rubber composition constituting the cap tread, and K represent a constant.

Provided is a heavy-duty tire comprising a tread, a carcass, and a belt layer, wherein the tread is composed of a rubber composition comprising: a rubber component comprising an isoprene-based rubber; and a copolymer resin comprising styrene and cyclopentadiene as monomer components, and wherein S/(a/b) is greater than 7.0, when a=C₁/T₁ and b=C₂/T₂ are defined, where S represents a total styrene amount, in % by mass, in the rubber composition constituting the tread, C₁ represents a content, in % by mass, of an isoprene-based rubber in the rubber composition constituting the tread, T₁ represents a total thickness, in mm, of the tread, C₂ represents an average content of an isoprene-based rubber in the belt topping rubber covering the belt layer, and T₂ represents a total thickness, in mm, of the belt layer.

The present invention is directed to a pneumatic tire 1 in which a sound absorbing member 3 is removably attached to an inner surface 2a of a tread portion 2. The sound absorbing member 3 is formed into an annular shape by joining a body 4 made of a long sponge material. The body 4 has a joint surface 4c where a first end 4a on one side and a second end 4b on another side in a longitudinal direction thereof are joined. The joint surface 4c is inclined with respect to a tire radial direction. A length of an outer circumferential surface 3a of the sound absorbing member 3 is smaller than a length of the inner surface 2a of the tread portion 2.

A tire having a tread portion including circumferential grooves and land regions each provided with groove-shaped portions (31) each having a first end on a first side and a second end on a second side in a tire circumferential direction. In each pair of the groove-shaped portions circumferentially adjacent to each other, the first end of one groove-shaped portion and the second end of the other groove-shaped portion of the pair are formed at the same circumferential position in the same land region or different land regions. In at least one land region in a 70% loaded state, an absolute value of a difference between one of angles θa of both circumferential edges of the at least one land region and an angle θb of one of the groove-shaped portions formed therein with respect to the tire axial direction is 5 degrees or more.

A puncture repair kit (1) includes a container (2) containing a puncture repair fluid (R), compressed air source (3) for supplying compressed air (A), an extraction portion (4) disposed between the compressed air source (3) and the container (2) for extracting the puncture repair fluid (R) from the container (2). The extraction portion (4) includes an outer member (5) attached to the container (2), and an inner member (6) assembled inside the outer member (5). The inner member (6) is configured to be selectively assembled with the outer member (5) in either a first state where the entire amount of the compressed air is supplied to the inside of the container (2), or a second state where a portion of the compressed air is supplied to the inside of the container (2) and a portion of the compressed air is supplied to an outside of the container (2).

A puncture repair kit (1) switchable between a repair mode for repairing a puncture in an object (T) and a supply mode for supplying only compressed air (A) includes a container (2) containing a puncture repair fluid, a compressed air source (3) for supplying the compressed air (A), a cover member (4) for supplying only the compressed air (A), and an extraction portion (5) disposed between the compressed air source (3) and the container (2) or the cover member (4). The extraction portion (5) includes an outer member (6) configured to have the container (2) or the cover member (4) attached thereto, an inner member (7) assembled inside the outer member (6), and a seal member (8) attached to an outer periphery of the inner member (7). The inner member (7) has a seal retaining structure (7a) for preventing the seal member (8) from coming off the inner member (7).

A tread rubber forming method comprises the steps of: forming a non-conductive layer 10 by winding a non-conductive first rubber strip 3 around a cylindrical body 2 for plural turns; forming a conductive layer 20 by winding a conductive second rubber strip 4 around the cylindrical body for at least one turn in parallel to the circumferential direction of the cylindrical body; and forming a non-conductive layer 10 by winding the first rubber strip 3 around the cylindrical body for plural turns. When winding the non-conductive rubber strip 3 for each one turn of the plural turns, the first rubber strip 3 is wound in parallel to the circumferential direction to form at least 3/4 portion of the one turn, and wound obliquely to form the remaining portion of the one turn.

An object of the present invention is to provide a photocurable composition from which a molded product having excellent mechanical properties is obtained. The present invention provides a photocurable composition containing a urethane (meth)acrylate oligomer and a vinyl monomer, wherein the vinyl monomer includes a first monomer having a glass transition temperature (Tg) of-100 °C or more and 20 °C or less, and a second monomer having a glass transition temperature (Tg) of more than 20 °C and 150 °C or less, an amount of the urethane (meth)acrylate oligomer ranges from 20 mass % to 80 mass %, an amount of the first monomer ranges from 15 mass % to 75 mass %, an amount of the second monomer ranges from 5 mass % to 65 mass %, and a total amount of the urethane (meth)acrylate oligomer and the vinyl monomer is 100 mass %.

A recycling method for a puncture repair kit disclosed herein includes an acquisition step S10 and a classification step S20. In the acquisition step S10, information by which at least a manufacturing lot of a tire puncture repair kit including a puncture repair liquid can be specified is acquired. In the classification step S20, a recycling method for the puncture repair liquid is classified on the basis of the information by which the manufacturing lot can be specified.

A tire 2 includes a tire body 4 and a sound damper 6 joined to an inner surface of the tire body 4. The tire body 4 includes a tread 8 whose outer surface includes a crown portion 60, a pair of middle portions 62, and a pair of shoulder portions 64. An axially outer end PC of a joint surface between the sound damper 6 and the tire body 4 is located axially inward of a boundary MS between the middle and shoulder portions 62 and 64. A distance in an axial direction from an equator plane to the axially outer end PC is 90% or more of a distance in the axial direction from the equator plane to a boundary between the crown and middle portions 60 and 62. A radius TR1 of an arc representing a contour of the crown portion 60 is 1000 mm or more.

To improve the durability of tires during high-speed running, provided is a tire comprising a carcass, a belt provided on the radially outer side of the carcass, a band having a band cord and provided on the radially outer side of the belt, and a tread provided on the radially outer side of the band, wherein the band cord is a sustainable polyester cord, the tire satisfies the following formula (1), when the cord diameter of the band cord is d (mm), the number of cords present in a direction 5 cm perpendicular to the longitudinal direction is D (cords/5 cm), the dimensional stability index is DSI (%), the loss tangent 30°C tan δ is measured under the conditions of the temperature of the tread of 30°C, the initial strain of 5%, the dynamic strain of 1%, and the frequency of 10 Hz, and the thickness of the tread is A (mm). d × D / DSI × 30 ° C tan δ × A ≧ 0.7 <img class="EMIRef" id="a743ac19-09b4-47ef-938d-e89d098472b7-ia01" />