Patent classifications
B60C5/00
Elastomeric composition comprising graphene and tire components comprising said composition
Elastomeric composition for producing tire components comprising, based upon parts by weight per 100 parts by weight of rubber (phr): (A) 100 phr of a blend of rubber comprising at least 20% by weight of an isoprene polymer; (B) from 0 to 30 phr of silica; (C) from 0 to 50 phr of amorphous carbon black; (D) from 1 to 40 phr of graphene,
wherein the graphene consists of graphene nanoplatelets, wherein at least 90% have a lateral size (x, y) from 50 to 50000 nm and a thickness (z) from 0.34 to 50 nm, wherein the lateral size is always greater than the thickness (x, y>z), and wherein the C/O ratio is 100:1.
Elastomeric composition comprising graphene and tire components comprising said composition
Elastomeric composition for producing tire components comprising, based upon parts by weight per 100 parts by weight of rubber (phr): (A) 100 phr of a blend of rubber comprising at least 20% by weight of an isoprene polymer; (B) from 0 to 30 phr of silica; (C) from 0 to 50 phr of amorphous carbon black; (D) from 1 to 40 phr of graphene,
wherein the graphene consists of graphene nanoplatelets, wherein at least 90% have a lateral size (x, y) from 50 to 50000 nm and a thickness (z) from 0.34 to 50 nm, wherein the lateral size is always greater than the thickness (x, y>z), and wherein the C/O ratio is 100:1.
Vibration suppression tire
A vibration absorbed tire is provided which has a laminated structure that contains dilantant layer causing reaction rate differences in the cross-sectional direction and thus functions without impairing the motion characteristics of the tire even with only a single or a few very thin layers, whereby the tire is easy to manufacture and has reduced cost. The tire has the laminated structure, which includes the dilantant layer which is a layer where particles and a bonding material thereof are arranged to act as dilantant, and in which the particles are arranged so that the distribution density of the particles decreases toward the upper and the lower surface from the central part of the layer.
Vibration suppression tire
A vibration absorbed tire is provided which has a laminated structure that contains dilantant layer causing reaction rate differences in the cross-sectional direction and thus functions without impairing the motion characteristics of the tire even with only a single or a few very thin layers, whereby the tire is easy to manufacture and has reduced cost. The tire has the laminated structure, which includes the dilantant layer which is a layer where particles and a bonding material thereof are arranged to act as dilantant, and in which the particles are arranged so that the distribution density of the particles decreases toward the upper and the lower surface from the central part of the layer.
Pneumatic tire
A pneumatic tire includes a band-like sound absorbing member adhered on an inner surface of a tread portion along the tire circumferential direction. Cuts are formed on the band-like sound absorbing member mutually intersecting such that angles 1, 2 with regard to the tire width direction are within a range where 0190 or 0290. The cuts are locally disposed in a region adjacent to an end portion on a vehicle inner side of the band-like sound absorbing member. A width of the placement region of the cuts is from 10% to 80% with regard to a width of the band-like sound absorbing member.
Pneumatic tire
A pneumatic tire includes a band-like sound absorbing member adhered on an inner surface of a tread portion along the tire circumferential direction. Cuts are formed on the band-like sound absorbing member mutually intersecting such that angles 1, 2 with regard to the tire width direction are within a range where 0190 or 0290. The cuts are locally disposed in a region adjacent to an end portion on a vehicle inner side of the band-like sound absorbing member. A width of the placement region of the cuts is from 10% to 80% with regard to a width of the band-like sound absorbing member.
Semi-pneumatic tire and semi-pneumatic tire manufacturing method
A semi-pneumatic tire includes a tread portion configured to make contact with a road surface, a non-pneumatic portion coupled to an inner circumferential surface of the tread portion. The semi-pneumatic tire further includes a pneumatic portion coupled to an inner circumferential surface of the non-pneumatic portion and provided with a space into which an air is filled, and bonding layers respectively interposed between the tread portion and the non-pneumatic portion and between the non-pneumatic portion and the pneumatic portion. The non-pneumatic portion includes a band portion including an inner band coupled to an outer circumferential surface of the pneumatic portion and an outer band spaced apart from the inner band and surrounding an outer circumferential surface of the inner band, and spokes provided between the inner band and the outer band to connect the inner band and the outer band.
TIRE
Disclosed is a tire including: at least one pin protruding from an inner circumferential surface of a tread portion of the tire toward a tire radial direction inner side; and a noise damper caught by the at least one pin, in which the at least one pin has on its distal end an expanded-diameter portion by which the noise damper is locked such that the noise damper is fixed to the at least one pin.
Pneumatic tire
A pneumatic tire includes, in a tread portion, a belt layer including a circumferential belt layer with a belt cord disposed along a circumferential direction; and belt plies having a larger lateral direction dimension than a lateral direction dimension of the circumferential belt layer. A gauge from a surface of the tread portion to the belt layer is equal on a vehicle outer side and a vehicle inner side where the circumferential belt layer is disposed. At positions located away from a tire equatorial plane toward the vehicle outer side and the vehicle inner side by 120% of half of the lateral direction dimension of the circumferential belt layer, a gauge H1out on the vehicle outer side and a gauge H1in on the vehicle inner side to a belt ply of the belt plies located outermost in a radial direction satisfy 1 mmH1inH1out3 mm.
Pneumatic tire
A pneumatic tire includes, in a tread portion, a belt layer including a circumferential belt layer with a belt cord disposed along a circumferential direction; and belt plies having a larger lateral direction dimension than a lateral direction dimension of the circumferential belt layer. A gauge from a surface of the tread portion to the belt layer is equal on a vehicle outer side and a vehicle inner side where the circumferential belt layer is disposed. At positions located away from a tire equatorial plane toward the vehicle outer side and the vehicle inner side by 120% of half of the lateral direction dimension of the circumferential belt layer, a gauge H1out on the vehicle outer side and a gauge H1in on the vehicle inner side to a belt ply of the belt plies located outermost in a radial direction satisfy 1 mmH1inH1out3 mm.