Abstract:
The disclosure concerns a tread band made of rubber-like material for a tire, said tread band including two sides with a predetermined distance D between these two sides and a center. The tread band having a plurality of blocks, each block extending continuously in a curved manner to one side of the tread band towards the center of this tread band, the block following a certain curvature C. Each block includes at least one lateral face, this lateral face is covered totally by a covering material, the covering material having a modulus of elasticity which is greater than the modulus of elasticity of the rubber-like material forming the block.
Abstract:
Provided are a sliding elastic body capable of imparting excellent sliding properties and resistance to protein adsorption and, at the same time, maintaining sealing properties; and a syringe gasket, a catheter, and a tire which include the sliding elastic body. The present invention relates to a sliding elastic body including an elastic body whose surface is fully or partially laminated with a fluororesin film, the laminated elastic body being treated with a fluorinated oil.
Abstract:
A tire includes a circumferential tread constructed of a base material. The circumferential tread has a plurality of bars, each of the plurality of bars having a top surface and a plurality of side surfaces. The circumferential tread further has a plurality of valleys disposed between the plurality of bars. A laminate covers at least some of the plurality of valleys. The laminate has a greater elongation at break than the base material.
Abstract:
The present invention relates to a tire having a rubber tread or rubber layered rubber tread where the rubber tread or rubber tread layers contain a dispersion of polyester phthalate within and on the surface thereof to promote a hydrophilic property for the surface. In one embodiment such promoted hydrophilic property is to promote expelling of water borne mud or snow from within the tread grooves.
Abstract:
A 300% modulus at 100° C. in the range of 1 mm in an radial direction from a surface of a tread member is set to be between 1.10 times and 2.0 times inclusive, more preferably, between 1.10 times and 1.5 times inclusive, larger than a 300% modulus at 100° C. in the range of 0.5 mm to 1.5 mm in the radial direction from a bottom part of the tread member.
Abstract:
A tire structure includes a green base tire and a green inked rubber skin combined with a surface of one of tire walls of the green base tire, combined with a tire surface, or combined with the tire surface and the tire wall to have a ring structure. Thus, decorative patterns and texts can be printed on the green inked rubber skin so that the tire has the higher visibility. Also, a manufacturing method is also disclosed. The method includes the steps of: providing a green base tire and a green inked rubber skin; temporarily adhering the green inked rubber skin to a predetermined position of the green base tire to form an assembly; and then placing the assembly into a vulcanizing machine for heating and vulcanizing for a period of time so that the green inked rubber skin can be permanently combined with the green base tire.
Abstract:
A tire has an axis of rotation. The tire includes two sidewalls extending radially outward and a tread disposed radially outward of the two sidewalls and interconnecting the two sidewalls. The tread includes a main portion comprising a first compound and a reinforcing structure comprising a second compound having reinforcing short fibers oriented between −20 degrees to +20 degrees to a circumferential direction of the tread. The main portion of the tread includes at least one circumferential groove separating circumferential ribs. Each circumferential groove has two sides and a base therebetween. The reinforcing structure includes a layer of the second compound secured to the sides of each circumferential groove.
Abstract:
Vehicle tires, particularly for commercial vehicles, contain a profiled tread, which is broken down into profiled ribs or block rows by a number of peripheral grooves and is made of a first rubber mixture. A groove base of the peripheral grooves is made of a second rubber mixture, and the modulus of elasticity of the second rubber mixture is less than the modulus of elasticity of the first rubber mixture of the main part of the tread. In particular, the second rubber mixture has a modulus M 100%, which is 5% to 20% less than the modulus M 100% of the first rubber mixture of the main part of the tread. The two rubber mixtures are based on a substantially identical or comparable polymer system.
Abstract:
A pneumatic tire has a carcass structure having at least one carcass ply and at least one annular reinforcing structure associated with the carcass ply, a pair of axially opposite side walls on the carcass structure, a belt structure arranged at a radially outer position with respect to the carcass structure and a tread band arranged at a radially outer position with respect to the belt structure, and generally having a first elastomeric material incorporating at least one portion substantially of a second elastomeric material. The tread band has at least one groove defined in the at least one portion substantially of the second elastomeric material wherein the ratio between the modulus of elasticity under compression at 100° C. of the second elastomeric material and the modulus of elasticity under compression at 100° C. of the first elastomeric material is not lower than about 1.30, and wherein the ratio between the IRHD hardness at 100° C. of the second elastomeric material, measured in accordance with standard ISO 48, and the IRHD hardness at 100° C. of the first elastomeric material, measured in accordance with standard ISO 48, is lower than about 1.10.
Abstract:
A tire tread comprising: a plurality of elements in relief (rib and/or block) comprising a contact face intended to come into contact with the roadway during travel and lateral faces, the intersection of each lateral face with the contact face forming a ridge, a plurality of cutouts in the form of grooves and/or incisions, said cutouts being defined by opposing main faces, each tread pattern element being formed with at least one rubber mix (referred to as “base mix”), and characterized in that, viewed in section in a plane containing the thickness of this tread, at least one face defining at least one cutout is formed at least in part with a rubber mix, referred to as “covering mix”, the base mix having a grip on wet ground which is lower than the grip of the covering mix on the same ground.