96results about How to "Improve grip performance" patented technology

The invention provides a novel all-steel mud-field tire, and belongs to the field of tires. Through the adoption of the novel all-steel mud-field tire disclosed by the invention, improving tire strength is facilitated, impact resistance and durability of the tire are improved, and the service life of the tire is prolonged. A longitudinal section of the all-steel mud-field tire comprises a tire crown (1), a tire shoulder (2), a tire sidewall (3), a tire bead (6), and a tire body (4), wherein the tire crown (1) is located on the outer side of the upper part of the longitudinal section; the tire shoulder (2) is connected with the tire crown (1); the tire sidewall (3) is connected with the tire shoulder (2); the tire bead (6) connected with a wheel rim is arranged at the lower part of the tire sidewall (3); the tire body (4) is located on the inner side of the section of the tire; a tire shoulder pad (21) is arranged on the tire shoulder (2); a convex rib (31) is circumferentially and annularly arranged on the outer part of the tire sidewall (3); and the tire body (4) is a layer of all-steel tire body.

A tire tread-use rubber composition includes from 10 to 50 parts by weight of a tackifying resin having a softening point of from 100° C. to 150° C.; from 70 to 130 parts by weight of a carbon black having a nitrogen specific surface area of from 250 to 400 m²/g; from 1 to 3 parts by weight of sulfur; from 0.5 to 4.0 parts by weight of a sulfenamide vulcanization accelerator; and from 1.5 to 5.0 parts by weight of a thiuram vulcanization accelerator per 100 parts by weight of a rubber component; wherein when A is a compounded amount in parts by weight of the sulfenamide vulcanization accelerator, T is a compounded amount in parts by weight of the thiuram vulcanization accelerator, and S is a compounded amount in parts by weight of the sulfur, a weight ratio (A+T)/S is from 2 to 4.

A rubber composition comprising 100 parts by weight of a rubber ingredient comprising natural rubber and/or a synthetic rubber, 0.1 to 50 parts by weight of at least one nitrogenous compound selected among benzimidazole derivatives having a specific structure and hydrazide derivatives having a specific structure, and 0.1 to 50 parts by weight of a protonic acid; and a pneumatic tire including a member formed from this rubber composition. The rubber composition enables excellent gripping performance while attaining intact productivity. The pneumatic tire produced from this rubber composition, in particular, the tire whose tread has been formed from the composition, has significantly improved gripping performance in high-speed driving, etc.

The invention discloses a pair of antiskid rubber gloves and a processing method thereof. Each antiskid rubber glove comprises rubber latex forming a glove body and antiskid rubber latex forming an antiskid layer, wherein the antiskid rubber latex consists of natural rubber latex, sulfur, zinc oxide, an accelerator, an antioxidant and rubber particles. According to the antiskid rubber gloves disclosed by the invention, rubber particles are arranged on the outer surfaces of the gloves in a processing course of the gloves so as to increase the friction coefficient of the gloves, enhance the catching power of the gloves and largely improve the antiskid effect of the gloves; in addition, the gloves have no special requirement on production moulds and equipment and only the traditional production mould is needed in a production process, therefore the production input is low and the production cost of enterprises can be reduced greatly. The gloves processed with the processing method disclosed by the invention have the advantages of good antiskid effect, capability of solving the problem that defective holes possibly appear on the gloves caused by mould bumps in the production process and high yield; and the processing method disclosed by the invention has the advantage of simple operation.

The invention relates to shoe soles and provides an antiskid rubber outsole which is specially used on surfaces containing surfactants and oil stains and a manufacturing process of the outsole. The antiskid rubber outsole is prepared from nitrile butadiene rubber, integrated rubber, solution polymerized styrene-butadiene rubber, modified liquid polybutadiene rubber, fumed silica, a plasticizer, an anti-aging agent, petroleum resin, a white smoke activator, a silane coupling agent, polyethylene wax, zinc oxide, sulfur, and a vulcanization accelerator. The antiskid rubber outsole has excellent antiskid effect not only on a regular dry or wet surface or a surface containing surfactants, for example, detergents, and an oil stain surface. People can walk safely and stably on the outsoles. The manufacturing process has simple processes and is easy to carry out, and is suitable for large-scale production.

The present invention provides a pneumatic tire for a motorcycle, in which tire durability at a relatively high speed in running straight is enhanced with maintaining good gripping performances in cornering situation by optimizing the distribution of loss tangent in tread rubbers constituting a tread portion. The pneumatic tire for a motorcycle includes a pair of bead portions 1 having bead cores embedded therein, a pair of sidewalls 2 extending on the outer side in the tire radial direction from the bead portions 1, and a tread portion 3 extending over the respective sidewall portions 2, wherein the tread portion 3 is constituted of at least four tread regions such that, when the tread regions are viewed in a section in the tire widthwise direction, loss tangent values of rubbers constituting the adjacent tread regions are different from each other, and a loss tangent value of a rubber constituting a center tread region 5 as a tread region including the tire equatorial plane 4, of the tread regions, is smaller than a loss tangent value of each of rubbers constituting other tread regions 6.

The invention relates to a tread compound for a passenger tyre with high wet skid resistance and a preparation method thereof. The tread compound comprises, by weight, 13 to 16 parts of natural rubber, 61 to 83 parts of first solution-polymerized styrene butadiene rubber, 25 to 40 parts of second solution-polymerized styrene butadiene rubber, 10 to 20 parts of carbon black, 45 to 55 parts of white carbon black, 2 to 7 parts of a softener, 5 to 6 parts of an activator, 3 to 4 parts of an antioxidant, 1.8 to 2.2 parts of a wet skid resistance reinforcing agent, 4.5 to 5.5 parts of resin with high wet skid resistance, 7 to 9 parts of a coupling agent and 3 to 3.5 parts of a vulcanizing agent. The tyre prepared from the raw materials provided by the invention has wet skid resistance reaching grade A or above and is a high quality tyre with superhigh wet skid resistance.

The invention relates to a saloon car tyre surface and specially, relates to patterns of the saloon car tyre surface. The saloon car tyre surface comprises a centre pattern block, side pattern blocks and shoulder pattern blocks. The side pattern blocks and the shoulder pattern blocks are orderly and regularly arranged at left and right sides of the centre pattern block from inside to outside. The saloon car tyre surface is divided into left and right symmetrical parts by the centre pattern block. The centre pattern block is a vertical one-piece pattern block and is located in the center of the saloon car tyre surface. The centre pattern block is separated from the side pattern blocks through main vertical circle pattern channels located between the centre pattern block and the side pattern blocks. The side pattern blocks are separated from the shoulder pattern blocks through auxiliary vertical circle pattern channels located between the side pattern blocks and the shoulder pattern blocks. Adjacent two of the side pattern blocks are separated through an inclined side pattern channel and two ends of the inclined side pattern channel are respectively communicated with the main vertical circle pattern channel and the auxiliary vertical circle pattern channel. Adjacent two of the shoulder pattern blocks are separated through a shoulder pattern channel and the shoulder pattern channel is communicated with the auxiliary vertical circle pattern channel. The patterns of the saloon car tyre surface are mixed patterns and thus the saloon car tyre surface can produce an enough braking force and has good control performances and a beautiful appearance.

Provided is a rubber composition for tire treads, and the rubber composition brings about lower rolling resistance and better control stability than the conventional levels. The rubber composition is characterized by comprising 100 parts by weight of a diene rubber containing at least 40 wt% of a modified conjugated-diene polymer rubber, and 66-110 parts by weight of a filler comprising at least 50 wt% of silica. The composition is further characterized in that the modified conjugated-diene polymer rubber has modifying end groups obtained by reacting at least one compound with active conjugated-diene polymer chains obtained by copolymerizing a conjugated-diene monomer and an aromatic vinyl monomer in a hydrocarbon solvent by using an organic active metal compound as an initiator, the at least one compound having a functional group reactive with the active ends of the polymer chains, the modifying end groups including a functional group that interacts with silica, and that the modified conjugated-diene polymer rubber has an aromatic-vinyl unit content of 38-48 wt%, a vinyl unit content of 20-35%, and a weight-average molecular weight of 600,000-1,000,000.

A tire for a golf cart includes an inner tire, and a thin outer tire mounted around the inner tire. The inner tire made of EVA solid foam material co-operates with the thin outer tire having a plurality of protruding bosses to construct a solid composite tire, so that the tire has a light weight, needs not to be inflated and has a better shock-absorbing effect. In addition, the pointed cylindrical shaped protruding bosses of the thin outer tire can be extended into the muddy or snowy ground to provide an excellent grip effect, so that the golf cart can be moved smoothly and conveniently. Thus, the tire has an excellent ground grip effect, so that the tire is available for the muddy or snowy ground.

The present invention aims to provide a tire rubber composition that achieves a good balance of grip performance (especially, wet grip performance), abrasion resistance, cut and chip resistance, low rolling resistance, and kneadability, and a pneumatic tire using the same. The composition comprise: a rubber component including a styrene-butadiene rubber modified by a compound of formula (1):

and a non-modified styrene-butadiene rubber; a filler including silica, the filler being in an amount of 80 parts by mass or less per 100 parts by mass of the rubber component; and sulfur in an amount of 0.5-1.5 parts by mass per 100 parts by mass of the rubber component, the modified styrene-butadiene rubber having a bound styrene content of 20-40% by mass and a vinyl content of 30-65% by mass, and the non-modified styrene-butadiene rubber having a bound styrene content of 25-45% by mass and a vinyl content of 10-50% by mass.

The invention relates to a racing car tire tread rubber composition with high road holding and high control performance. The racing car tire tread rubber composition is prepared from the following components in parts by weight: 27.5-68.75 parts of high styrene emulsion polybutadiene rubber, 27.5-68.75 parts of high styrene soluble polystyrene butadiene rubber, 20-40 parts of styrene-soluble styrene-butadiene rubber, 60-90 parts of super-abrasive-resisting carbon black, 30-50 parts of white carbon black, 2-8 parts of a silane coupling agent, 0-30 parts of aromatic oil, 2-4 parts of zinc oxide,1-3 parts of stearic acid, 2-6 parts of an antioxidant, 5-10 parts of road holding resin, 5-20 parts of liquid styrene-butadiene rubber, 1-2 parts of sulfur and 1.6-4.0 parts of an accelerator. The racing car tire tread rubber composition is excellent in wet road holding performance and dry road holding performance, the control performance is further excellent, the racing car tire tread rubber composition is superior than all of tread rubber compositions in the prior art, and the problem of insufficient road holding of tires during high-speed turning or lane-changing is solved.

A radiation imaging apparatus is provided. The apparatus includes a radiation detection panel, a housing of a cuboid shape that accommodates the radiation detection panel. The housing has a front surface that the radiation enters, a rectangular back surface arranged on a side opposite to a side of the front surface, and four side surfaces configured to connect the front surface and the back surface. The apparatus further includes a grip portion which is concave toward the radiation detection panel, formed in a peripheral region on the back surface. The grip portion has at least one of a depth not less than one-half a distance between the front surface and the back surface, and a depth not less than a distance between the back surface and a center of gravity of the radiation imaging apparatus.

A rubber composition contains: a diene rubber; 1 to 25 parts by weight of aromatic modified terpene resin; 80 to 150 parts by weight of silica; 5 to 50 parts by weight of carbon black; an oil component; and 0.1 to 20 wt. % of the weight of the silica of alkyltriethoxysilane having an alkyl group having 3 to 20 carbons, the diene rubber containing 10 to 30 wt. % of natural rubber, 10 to 30 wt. % of solution polymerized styrene butadiene rubber having a styrene unit content of 30 to 40 wt. % and 80 to 40 wt. % of emulsion polymerized styrene butadiene rubber, and a ratio of a total amount of an oil-extending component in the solution polymerized styrene butadiene rubber and/or the emulsion polymerized styrene butadiene rubber, the aromatic modified terpene resin, and the oil component to a weight of the natural rubber being 3.0 to 4.0.

The present invention relates to improved compositions of SSBR rubber. The improved compositions exhibit sufficient or improved balance of characteristics such as rolling resistance, HBU, abrasion, grip, and/or tear. The compositions may be made in an efficient, cost-effective manner.

There is provided a branched conjugated diene copolymer prepared by copolymerizing 1 to 99% by weight of a branched conjugated diene compound (1):

wherein R¹ is an aliphatic hydrocarbon having 6 to 11 carbon atoms, and 99 to 1% by weight of a conjugated diene compound (2):

wherein R² and R³ are the same or different and each is a hydrogen atom, or the like. The branched conjugated diene copolymer is useful as a rubber component of a rubber composition for a tire enhancing both of abrasion resistance and grip performance to a high level and exhibiting excellent processability.

The invention discloses an antifouling clamping block of a continuous tube injection head. The antifouling clamping block comprises a clamping block body (1) which is provided with a concave arc clamping face (11), a transverse groove (12) is formed in the concave arc clamping face (11), and a friction coating layer (2) and an anticorrosion and antifouling coating layer (3) are arranged on the concave arc clamping face (11) in sequence. The invention further discloses a manufacturing method of the antifouling clamping block of the continuous tube injection head, and belongs to the field of well drilling device corollary equipment. Due to the fact that the transverse groove is formed in the concave arc clamping face, the clamping contact area is reduced, unit pressure on the contact face is increased, the continuous lubrication film layer formed by underground media on the clamping surface can be effectively blocked and damaged, and stability of clamping performance is improved.

A window film anchoring device is disclosed which comprises a first engagement member and a second engagement member between which a free film portion of a film affixed to a window pane is inserted. The first and second engagement members are attached to a corresponding window frame portion, and film engaging surfaces of the first engagement member are in interlocking and lateral motion preventing relation with complementary film engaging surfaces of the second engagement member so as to maintain a constant pressing force on the free film portion. The anchoring device is adapted to be a retrofit kit, and is able to be easily attached to an existing window frame, in order to increase the impact or impulse resistance of the window pane. The anchoring device may also be factory assembled to a newly produced frame.

The invention discloses a planting method for improving typhoon resistance of arbor in southern China coastal areas. The planting method comprises the seven steps of transplanting seedling lifting ina soil ball manner, tree hole digging, prefabricated concrete column burying, arbor seedling planting, root pressing belt laying, trunk supporting and fixing and pretreatment before a typhoon period.A root pressing belt is additionally arranged according to the soil ball size, the soil ball reserved shape, the planting hole digging direction and the arbor planting direction, a steel pipe supporting leg is additionally arranged in the northwest direction for supporting according to the stress direction of a tree trunk, southeast-west flexible steel wire stretching is matched, the whole wind resistance of a tree is enhanced through the steps of a tree canopy pruning direction, a pruning degree and plastic film protection and coverage for the soil ball and the like when typhoon is about to come, all links complement one another, all measures are easy to operate, and project tests prove that the effect is obvious, the lodging resistance is good, the yield is high, by processing the oval soil ball, it is guaranteed that the transplanted soil ball is effectively stressed, the stability of the soil ball is effectively enhanced, and the wind resistance after arbor planting is improved.