摘要:
The present invention relates to tires and vehicular tracks having minimal-marking rubber treads and particularly to skid steering, fixed axle, tire/wheel or track assemblies where said tire or vehicular track has a minimal-marking tread. In particular, such rubber tread has a surface intended to be ground-contacting which is also intended to be minimal-marking and having suitable physical properties for a tire tread.
摘要:
A low pressure tire 20 for off road use has a carcass 21 reinforced with carcass plies 22 and a composite structure including a tread 32, a belt or breaker reinforcement 26 and one or more low angle cord reinforced layers 60.
摘要:
The present invention relates to tires and vehicular tracks having minimal-marking rubber treads and particularly to skid steering, fixed axle, tire/wheel or track assemblies where said tire or vehicular track has a minimal-marking tread. In particular, such rubber tread has a surface intended to be ground-contacting which is also intended to be minimal-marking and having suitable physical properties for a tire tread.
摘要:
A wear indicator strip for a pneumatic tire having a multiply carcass, such as a military aircraft tire, is located preferably between the two radially outermost carcass plies. The wear indicator strip is of a contrasting color and comprises and elastomeric compound of natural or polyisoprene rubber reinforced with silica.
摘要:
This invention relates to a light duty tire (e.g. passenger tire or light duty truck tire) designed for a load bearing capacity of a maximum of 3,500 pounds (1587 kg) with a tread of a cap/base construction with at least one underlying silica-rich, cis 1,4-polyisoprene rubber based intermediate transition rubber layer to promote a reduced internal heat generation for the light duty tire and to therefore promote a light load carrying light duty tire which is more durable for the long haul. Such light duty tire tread is intended for use with light loads in which internal heat may be generated within the tire, including the tire tread, during use.
摘要:
The present invention provides for oxygen scavenging materials and uses thereof for reducing oxygen content in an air cavity of a mounted tire, such as to reduce oxidation of a tire. The oxygen scavenging material can include a metal or metal-based material, an antioxidant, or microorganism. In one example, the oxygen scavenging material may be situated or secured within a tire cavity or secured to the tire rim of a wheel prior to mounting of the tire on the rim. Accordingly, the tire is mounted on the tire rim to define an air cavity with the oxygen scavenging material being located therein. The air cavity is be filled with air comprising oxygen to a desired internal air pressure with the oxygen scavenging material being provided in an amount sufficient for reducing oxygen content in the air cavity, such as to reduce oxidation of the tire thereby increasing the lifespan thereof.
摘要:
A bond of a rubbery component to a virgin surface of a tire's cured innerliner which virgin surface has never been contaminated by the remnants of a release agent left after buffing with a wire brush and solvent-cleaning the cured innerliner, is unexpectedly stronger than a bond of the component to the contaminated but “cleaned surface”, cleaned as indicated. As an alternative, buffing with a wire brush results in a textured surface that impairs adhesion of a balance pad. Therefore, a pneumatic tire is provided with a virgin surface protected against contamination by a release agent at the curing temperature of the tire; protection is provided by a self-supporting barrier film of sulfur non-vulcanizable, expandable, thermoformable synthetic resinous material; and, a method is provided for maintaining a virgin cured surface within all or part of either the exterior or interior of a pneumatic tire's rubber carcass which is conventionally cured. The barrier film which is substantially inextensible at ambient temperature, is removable without tearing into pieces from the protected surface of the cured tire. When the interior surface is provided by an innerliner, any component to be included within the interior of the carcass may be adhesively secured to the virgin surface of the innerliner more securely than has been heretofore possible.
摘要:
An applique having a vulcanizable adhesive layer is co-cured on a rubber article by precuring the applique of predominantly pale natural rubber optionally imprinted with a bar code; coating the upper surface of the applique with a protective self-supporting film of polyamide less than 0.050 mm (2 mils) thick, or a non-self-supporting film of polyurethane less than 25.4 μm, 0.0254 mm (1 mil) thick; adhering the applique to the article at a chosen location; curing the article in a curing mold; and, removing a cured article from the mold with the protective film adhering to the surface of the applique, the surface of which is essentially free from visually observable cracks. The hot flow of rubber in the curing mold does not substantially change the location of the applique which is embedded in the article. If the film does not remain adhered to a cured tire and drops into the mold, it is difficult to retrieve and, when a subsequent article is cured in the same mold, results in a scrap tire.
摘要:
The invention relates to an endless vehicular rubber track. The invention particularly relates to such track having hard rubber guide lugs with a softer guide support layer. It is to be appreciated that such guide lugs may also be positively driven drive lugs. The invention further relates to a vehicle having such track.
摘要:
This invention relates to curable rubber compositions containing a fullerene form of carbon which is used as a reinforcing agent in the rubber compositions, the fullerene form of carbon being used in place of at least a portion of, or in addition to, the normally used forms of carbon black reinforcement additives. The invention particularly relates to tires having treads composed of such rubber composition(s). The fullerenes may optionally have surface modifications such as partial or complete hydrogen or functional group substitution. The fullerene form of non-conventional carbon reinforcement of rubber composition(s) may exist as discrete particles, aggregates of particles and/or agglomerates. The carbon fullerene has a lower specific gravity than conventional carbon black, thereby allowing a reduced weight tire or other article made from the rubber compound(s) for comparable volumes of carbon black used.