1803 results about "Synthetic rubber" patented technology

One or more rigid components associated with an articulating bone are used to encase, encapsulate, contain, or otherwise protect a compressible/resilient member. The embodiments are applicable not only to artificial disc replacement (ADR) devices, but also to joint situations including total knee and hip arthroplasty. The cushion elements in the preferred embodiments include synthetic rubbers, hydrogels, elastomers, and other polymeric materials such as viscoelastic polymers and foam polyurethanes. The invention effectively combines the advantages of such materials (cushioning, shape memory, and expansion after insertion in the case of hydrogels), while providing increased protection, particularly the elimination of shear stresses. When applied to an ADR, the invention also minimizes the risk of extrusion.

Resilient flooring materials made from impregnated papers or foils and core materials are provided. As well, the methods for producing such products are provided. In particular, panels, with a layered structure, created by forming an assembly which consists of laminating a heat-activated resin impregnated decorative layer with printed graphics or a wood veneer decorative layer, a core material made up of one or more heat-activated resin-impregnated papers or other materials including linoleum, natural or synthetic rubber, cork, flexible natural fiber composites or other core materials, and a heat-activated resin impregnated paper backing layer. The heat-activated resin also acts to waterproof each of the layers and abrasion particles may be incorporated to improve wear properties. The panels may also be formed into three-dimensional products.

One or more rigid components associated with an articulating bone are used to encase, encapsulate, contain, or otherwise protect a compressible/resilient member. The embodiments are applicable not only to artificial disc replacement (ADR) devices, but also to joint situations including total knee and hip arthroplasty. The cushion elements in the preferred embodiments include synthetic rubbers, hydrogels, elastomers, and other polymeric materials such as viscoelastic polymers and foam polyurethanes. The invention effectively combines the advantages of such materials (cushioning, shape memory, and expansion after insertion in the case of hydrogels), while providing increased protection, particularly the elimination of shear stresses. When applied to an ADR, the invention also minimizes the risk of extrusion.

A low odor grip is disclosed for a handle of a hand-held implement such as a sports implement or a manual or electric tool which is essentially free of disagreeable odors, which can be installed and quickly shrunk into a tight vapor resistant grip within a matter of a few minutes rather than requiring extended periods of time, and can be installed without the need for any application of heat or use of special tools, equipment or materials. The present device is therefore easy to install, merely sliding over the handle while in dilated state and then allowed to shrink and set by evaporation of the solvent, and thus can be satisfactorily installed in both fabrication facilities and in the field either as an original or replacement grip. The invention also includes an implement fitted with such grip. Representative implements include sports implements such as golf clubs, tennis racquets, weight bars and fishing poles, as well as tools such as hammers, drills, pliers, shovels, axes, and the like. The grip is preferable made of a swellable elastomeric material, preferably a natural or synthetic rubber. Suitable rubbers include EPDM rubber, neoprene or chlorosulfonate polyethylene (Hypalon(TM)) rubber, of which EPDM rubber is preferred.

Use of a prior-cleaning cloth for an adhesive bond brought about by means of an adhesive film which is rereleasable without damage by pulling in the direction of the bond plane and which has an adhesive composition based on polymers and/or copolymers of synthetic rubber and/or natural rubber, characterized in that the substrate to be bonded is rubbed with a prior-cleaning cloth of this kind which is impregnated with a moisture-reactive organosilane, the organosilane being dissolved in a solvent or solvent mixture and being present therein in a concentration of 0.1-3% by weight, whereupon, following a waiting time of a few minutes, the adhesive film is pressed onto the treated area and then an article, hook or the like is bonded to the other side of the adhesive film, or else in that, after a waiting time of a few minutes, the adhesive film is pressed onto the treated area, an article, hook or the like already being located in bonded-on form on the reverse of the adhesive film.

The invention provides a waterproof coating capable of chemical crosslinking and physical mortise and tenon with cement. The waterproof coating is characterized by comprising the following raw materials by weight: 20-50 parts of a synthetic rubber latex, 20-50 parts of emulsified asphalt, 0.5-2 parts of a functional additive and 0.5-2 parts of a dispersant, 20-40 parts of a filler and 10-25 parts of water. The principle is that through coupling effect of the functional additive, part of the molecules in the synthetic rubber and most molecules in the asphalt couple into large molecules with reaction activity; when the large molecules contact with a base plane, the non-reactive molecule segments of the rubber and asphalt and the base plane form physical adsorption, and the molecular segments with reaction activity conduct react with the base plane to form chemical bond effect, so as to generate strong adhesive force; and after bonding, the coating is hardly influenced by environmental factors. Therefore, the waterproof coating provided by the invention has excellent waterproof performance.

A process for curing a natural or synthetic rubber includes the measuring of curing conditions by dielectric or impedance means to produce a process curve (impedance property data versus time) followed by analyzing the process curve with a software algorithm which defines and statistically quantifies the correlation between the process curve and the desired part properties. The correlation relationship is applied in real time to end the curing process at the optimum time and to produce rubber parts of uniform quality and with reduced process cycle time.

A pneumatic tire having a non-black rubber composition provided at the at least one portion thereof, at least a portion of said non-black rubber composition comprising 100 part by weight of at least one synthetic rubber and 5 to 100 parts by weight of strontium aluminate or calcium aluminate a long afterglow phosphorescent substance having an average particle size of 1 to 100 Am and having no substantial amounts of carbon black and staining antioxidant, and crosslinked with a crosslinking agent other than sulfur or a pneumatic tire having two or more layer structure of a surface layer of the above phosphorescent rubber composition layer and a lower layer of a blight-colored reflecting layer or the transparent or translucent cover layer and the under phosphorescent rubber composition layer.

The present invention provides a rubber composition with superior properties with respect to processability, low fuel consumption, complex modulus, and durability, and tires prepared by using the rubber composition. The rubber composition of the present invention comprises: 2 to 2.9 parts by weight of (B) sulfur, 0.6 to 10 parts by weight of (C) at least one compound selected from the group consisting of a cresol resin, a resorcin condensate, and a modified resorcin condensate, and 10 to 55 parts by weight of (D) a carbon black and/or silica, based on 100 parts by weight of (A) a rubber component comprising a natural rubber and/or isoprene rubber and at least two kinds of synthetic rubbers selected from the group consisting of butadiene rubber, modified butadiene rubber, styrene-butadiene rubber, and modified styrene-butadiene rubber. The tire of the present invention is prepared by using the rubber composition.

The invention discloses a halogen-free fire-retardant high heat conducting insulating resin composition and a heat dissipation metal-base copper clad plate (CCL). The composition comprises the following components in parts by weight: 10-45 parts of halogen-free epoxy resin, 0-15 parts of thermoplastic resin and/or synthetic rubber, 0.1-5 parts of curing agent, 0.02-1 parts of accelerator, 0.5-1 parts of antioxidant and 25-80 parts of heat conducting filler. The halogen-free fire-retardant high heat conducting insulating resin composition of the invention adopts high heat conducting filler, and the cured composition shows good thermal conductivity, electric insulativity and welding heat resistance as well as high adhesive force. The invention also discloses a heat dissipation metal-base CCL prepared by using the above halogen-free fire-retardant high heat conducting insulating resin composition, which has high thermal conductivity and high peel strength, does not have the problems of peel-off and deterioration even being subjected to thermal cycle of quick heating and quick cooling, and also has high electrical breakdown resistance, good heat resistance and soldering resistance and the like, and the flame retardant rating of the heat dissipation metal-base CCL reaches UL-94V0.

The present invention provides an improved shear band for use in non-pneumatic tires, pneumatic tires, and other technologies. The improved shear band is uniquely constructed of honeycomb shaped units that can replace the elastomeric continuum materials such as natural or synthetic rubber or polyurethane that are typically used. In particular, honeycomb structures made of high modulus materials such as metals or polycarbonates are used that provide the desired shear strains and shear modulus when subjected to stress. When used in tire construction, improvements in rolling resistance can be obtained because of less mass being deformed and reduced hysteresis provided by these materials. The resulting mass of the shear band is greatly reduced if using low density materials. Higher density materials can be used (such as metals) without increasing mass while utilizing their characteristic low energy loss.

The invention relates to a halogen-free flame-retardant epoxy resin composite, the flexible copper clad laminate made from the epoxy resin composite and the production method. The halogen-free flame-retardant epoxy resin composite is composed of solid components and organic solvents, wherein, the solid components include: phosphorus epoxy resin, synthetic rubber, rubber-modified epoxy resin and composite curing agent. The flexible copper clad laminate made from the halogen-free flame-retardant epoxy resin composite is a three-layer flexible copper clad laminate, including a polyimide insulation film, a coating of halogen-free flame-retardant epoxy resin composite coated on the polyimide insulation film, and a copper foil pressed on the coating of halogen-free flame-retardant epoxy resin composite. The resin composite of the invention is halogen-free and dispenses with other organic phosphorus flame retardants; the flexible copper clad laminate made from the composite has the flame retardancy up to UL94 V-0-level and has the advantages of high peeling strength, excellent dimensional stability, softness, good ion migration resistance and processing performance.

By using a vulcanized rubber composition containing a rubber component composed of at least any one of a natural rubber, a modified natural rubber and a synthetic rubber, and chemically modified microfibril cellulose, it is possible to provide a vulcanized rubber composition that is environmentally conscious and that exhibits excellent rupture characteristics and a low energy loss, and a pneumatic tire that is excellent in rolling resistance property, steering stability and durability.

The invention provides a rubber sealing ring and a production method thereof. The rubber sealing ring is prepared from the following components of (by weight parts): ethylene propylene diene monomer (EPDM) 80-120, carbon black 55-75, paraffin oil 15-25, indirect process zinc oxide 4-6, stearic acid 0.2-1, anti-aging agent 2-4, sulfur S-80 0.1-0.35, vulcanizing agent dicumyl peroxide (DCP) 3-5, and lubricating agent 1-3. The production method comprises the steps of: synthesizing rubber with a Banbury mixer, forming the synthetic rubber with a mixing mill, first-stage vulcanizing in a mold of a vulcanizing device, second-stage the product from the first-stage vulcanization in an oven, trimming, testing, and storing. The inventive rubber sealing ring has improved tensile strength, extensibility, tear strength, self-lubrication effect, compression and deformation resistance, heat resistance and aging resistance, good medium resistance, and prolonged service life. The inventive production method is simple and reasonable.

The invention provides a tread rubber composite material and a preparation method thereof, relating to the technical field of tyres, wherein the tread rubber composite material is prepared from 100 parts by weight of rubber and 2-30 parts by weight of composite powder. The composite powder comprises inorganic particles and rubber particles, wherein the weight ratio of the rubber particles to the inorganic particles is 1:6 to 6: 1. The composite powder is prepared by uniformly mixing and drying raw materials including irradiated synthetic rubber latex and slurry liquid of the inorganic particles. The composite powder can excellently reinforce the rubber so that the tread rubber composite material has the advantages of better mechanical property after aging, lower abrasion consumption, lower fatigue compression themogenesis and higher slippery-resistant performance and higher tearing intensity. Meanwhile, the preparation method of the tread rubber composite material has the advantages of simple process, easiness for operation and industrialization, low cost and wide use range.

An elastomer composition includes an elastomer and a carbon black, wherein the carbon black is characterized as having a COAN of between about 90 and 150 ml/100 g, a BET of between 50 and 69 m²/g and a distribution index DI that is greater than 1.15, wherein the DI is a ratio of d_w to d_mode. In particular embodiments, the elastomer may be selected from one or more natural rubbers, one or more synthetic rubbers or combinations thereof For example, the one or more synthetic rubbers may be selected from styrene butadiene rubber, butadiene rubber, polyisoprene rubber, butyl rubber or combinations thereof. Products made from the elastomer composition include tires and other products, particularly tires that include a sidewall, a carcass, a carcass reinforcement, tread and/or an undertread comprising the elastomeric composition.

The fluidtight zip fastener comprises a pair of fluidtight zip fastener carrying tapes carrying the zip fastener coupling member rows and which are in each case formed by a base tape with a soft, synthetic rubber or similar covering layer. They engage on one another by their edge portions. The pair of continuous coupling member rows is sewn to the zip fastener carrying tapes in a spaced offset position transversely to the longitudinal edges of said carrying tapes in such a way that the press-contact edge portions of the soft covering layers are in contact with one another along a longitudinal plane, which intersects the zip fastener at a central axis thereof and runs at right angles to the zip fastener principal plane. The press-contact edge portions project over said longitudinal plane, when the coupling member rows are disengaged. The edge portions, when the coupling member rows are engaged, are bent away from the side carrying the coupling member rows so as to extend roughly at right angles to the zip fastener principal plane. The soft covering layers of the press-contact edge portions engage on one another under pressure action when the zip fastener is closed and thus ensure the fluidtightness condition.

Provided are an anode composition for a lithium battery, and an anode and a lithium battery using the same. The anode composition can improve anode and battery characteristics while using water as a solvent that is harmless to humans. The anode composition includes an anode active material, a synthetic rubber binder, a cellulose-based dispersing agent, and a water-soluble anionic polyelectrolyte.

A multipurpose disc useful as a throw, tug, and chew toy for play involving pets and for play involving pets and people, and useful as a water and food dish for pets, the disc comprising: a circular top portion; an annular sidewall portion that merges with the circular top portion; an annular flange portion that merges with the annular sidewall portion, the annular flange and circular top portions being disposed in parallel spaced planes; a convex outer side; and, a concave inner side. The multipurpose disc has a flat top, annularly depressed trough formed in the annular flange, an internal flexible woven fabric re-enforcing member, and is composed of a resilient, waterproof, durable, and flexible material such as natural or synthetic rubber.

The invention relates to a macromolecule pre-laid waterproof coiled material which comprises a sheet-shaped macromolecule base material and a macromolecule adhesive layer formed on the macromolecule base material; and the macromolecule pre-laid waterproof coiled material is characterized by further comprising a protective layer coated on the macromolecule adhesive layer, wherein the macromolecule base material is high-density polyethylene, and polyethylene glycol terephthalate or ethylene-vinyl acetate copolymer; synthetic rubber is the main component of the macromolecule base material; and the material of the protective layer is silicon-containing unsaturated carboxylic acid modified butyl rubber which is prepared by the steps of grafting unsaturated carboxylic acid on butyl rubber molecule and then mixing with active silica. The macromolecule pre-laid waterproof coiled material has good high and low-temperature resistance and high adhesion peeling strength, and is easy to construct.