96results about How to "Hard surface" patented technology

The invention relates to a surgical implant that provides an artificial diarthroidal-like joint, suitable for use in replacing any joint, but particularly suitable for use as an intervertebral disc endoprosthesis. The invention contains two rigid opposing shells, each having an outer surface adapted to engage the surfaces of the bones of a joint in such a way that the shells are immobilized by friction between their outer surfaces and the surfaces of the bone. These outer surfaces are sufficiently rough that large frictional forces strongly resist any slippage between the outer surface and the bone surfaces in the joint. They may be convex, and when inserted into a milled concavity, are immediately mechanically stable. Desirably, the outer surfaces of the shells are adapted to allow for bony ingrowth, which further stabilizes the shells in place. The inner surfaces of the shells are relatively smooth, and adapted to slide easily across a portion of the outer surface of a central body disposed between the shells. The central body has a shape that cooperates with the shape of the inner surface of the shell so as to provide a range of motion similar to that provided by a healthy joint. A flexible sheath extends between edges of the opposing shells. The inner surface of this sheath, together with the inner surfaces of the rigid shells, defines a cavity encasing the central body. At least a portion of this cavity is filled with a fluid lubricant, further decreasing the frictional force between inner surfaces of the shell and the surface of the central body.

An improved high impact metal clubhead with a unique reinforced composite face wall, increased radius of gyration, and a positive lift air foil surface contour. The composite face wall includes an impact supporting wall rigidified by a pattern of integrally cast reinforcing bars that extend forwardly, rather than rearwardly, from the supporting wall. The reinforced supporting wall is covered by a very hard plastic ball striking insert that is cast in situ over the supporting wall. The increase in radius of gyration is accomplished by extending the heel and toe portions of the clubhead along the face wall further from the geometric center of the head, beyond present day parameters for high impact clubheads. And the positive lift is effected by contouring the top wall of the clubhead downwardly and rearwardly from the base wall more severely almost to the plane of the sole plate, and flattening the rear wall so it is almost co-planar with the sole plate. This configuration results in the top wall being equal to or greater in length than the combined length of the sole plate and rear wall in a vertical plane extending through the clubhead along the target line. The laws of continuity of matter and the air foil shape of the top wall eliminate the negative lift or drag in today's "woods" and offer the possibility of some positive lift to increase ball overspin.

Blast-cleaning systems are disclosed, which enable a single system to handle different classes of particulate blasting media, such as grit, powder, and dry ice, and to deliver controllable mixtures of different media types during a blasting operation. This “multi-media” system includes a hopper having two chambers or other supply assemblies that are isolated from each other, for holding two different types of blasting media. Both chambers provide their particulates to a metering control device, which supplies a compressor. For example, by combining grit with dry ice, extremely efficient cleaning can be accomplished, with greatly reduced production of solid waste. Tests have shown that combinations of dry ice (at roughly 90%) with a grit or powder can provide far greater cleaning efficiency than either media type by itself.

A surface-treating agent for imparting both water repellency or unsusceptibility to water absorption and excellent antifouling properties to a surface of a material, especially a material for outdoor use; and a material whose surface has been treated with the surface-treating agent. A solution or dispersion which contains a water repellent or water absorption inhibitor, preferably a water repellent or water absorption inhibitor of the silane, siliconate, silicone, silicone/silane composite, and/or fluorochemical type, and a titanium oxide doped with at least one metal element selected from the group consisting of copper, manganese, nickel, cobalt, iron, and zinc, preferably an amorphous titanium oxide or an amorphous titanium oxide which has been peroxidized at least partly, is used to form, on a surface of a base material and/or in a surface layer thereof, a layer comprising the water repellent or water absorption inhibitor and the titanium oxide doped with at least one metal element selected from the group consisting of copper, manganese, nickel, cobalt, iron, and zinc.

A suction cup, including a flat framework, a suction cup body covering the framework, a connection rod disposed on the back surface of the framework and passing through the cup body, a cup cover covering the connection rod and the cup body, and a pressing element provided on the back surface of the cup cover and in connection with the connection rod, a seal element on the adsorption surface of the cup body, and an annular protruding ring on the inner surface of the cup cover at a location corresponding to the seal element for touch pressing the inner surface of the cup body against the seal element. The invention uses rigid force transfer, and thus the force transfer is more effective. The sealing element enhances the airtightness of the suction cavity and increases the absorption force of the suction cup. When pulling the connection rod, due to the existence of the sealing element, the air cannot easily enter the suction cavity, and because before the pulling the framework is in a flat state, it can produces a high degree of vacuum and thus adsorption force so that the suction cup will not fall off the supporting surface easily. Furthermore, the suction cup of the invention is structurally simple with a lower manufacturing cost.

The invention relates to an expansive waterborne fireproof and flame-retardant coating for a wood material and a preparation method of the expansive waterborne fireproof and flame-retardant coating. The coating comprises water and the following components in parts by weight: 200 parts of melamine-modified urea resin emulsion, 110-120 parts of ethylene-vinyl acetate copolymer emulsion, 20-24 partsof boric acid, 36-38 parts of ammonium polyphosphate, 20-24 parts of guanylurea phosphate, 36-40 parts of pentaerythritol, 30-34 parts of melamine, 1.0-1.4 parts of sulfonated carbon, 3.6-4.0 parts ofzinc borate, 2.0-2.4 parts of ammonium octamolybdate, 16-20 parts of coating auxiliaries and 0-44 parts of pigment and filler. When heated, the expansive waterborne fireproof and flame-retardant coating is capable of greatly retarding the combustion of the wood material so as to prevent fire spreading; and the expansive waterborne fireproof and flame-retardant coating has good smoke inhibiting property and is capable of delaying the smoke generation time, reducing the release amount of smoke and the generation of poisonous gases and providing more safety time and space for escape and rescue of personnel under the condition of a fire hazard.

The invention relates to a preparation method of a high performance expanded polyethylene product. The material of the invention comprises the following component in parts by weight: 50 parts of LDPE (low-density polyethylene) and LLDPE (linear low-density polyethylene), 0.01-1 parts of peroxide, 0.3-2 parts of talcum powder and/or calcium carbonate, 0.02-0.06 parts of antishrinking agent and 0.1-0.4 parts of foaming agent. In the invention, butane is used as the foaming agent, and the LDPE and the LLDPE are used as resin raw materials. The expanded polyethylene prepared by the preparation method of the invention has the advantages of high density and high surface hardness, the density of the expanded polyethylene is 60-400g/m<3> and the surface hardness is 40-70 degrees. The high performance expanded polyethylene product has good anti-scraping performance and puncture resistance as well as good rebound resilience and anti-quake effect. The high performance expanded polyethylene product meets the requirements of high performance of current packaging materials and fully protecting the substances being packaged. In addition, the high performance expanded polyethylene product has theadvantage of long sustainable using time as a panel and good market potential.

The present invention discloses a thermoplastic flame-retardant alloy and a method for preparing it, composed of the following components by the shares and weights as below: 5-94 shares of ABS resin, 3-94 shares of polyester or co-polyester or the mixture of both, 1-50 shares of brominated flame retardant, 1-10 shares of synergistic flame-retardant, 0.001-30 shares of chlorinated polyethylene (CPE), 0.001-2 shares of anti-dripping agent and 0.1-6 shares of processing aid. Comparing with the ABS flame retardant presenting the prior art, the thermoplastic flame-retardant alloy features better glossness, scratch resistance, stronger ultraviolet radiation resistance and better mechanical property, thus making up for the disadvantage that the flame-retardant ABS is prone to become yellow on some occasions with high weatherability requirements. Furthermore, the preparation method of the thermoplastic flame-retardant alloy for the present invention is successive, stable and feasible.

A thermoplastic multi-layer composite structure is disclosed and in a first embodiment as a co-extruded acrylic polypropylene outer skin and high melt strength polypropylene substrate which is attracted to a first surface of a polypropylene foam core. An inner polypropylene skin is attached to a second surface of the foamed core, which can either be constructed from an expanded polypropylene or an extruded polypropylene and is attached to the outer and inner skin through the use of an adhesive. Where an extruded polypropylene foam core is provided, the skins can be attached to the foam core by adhesives or through a welding or bonding process in lieu of adhesives. Additionally, the extruded foam core can vary in density to provide a composite foam core. An all acrylic composite multi-layered structure is also provided.

A dicing die-bonding film having a pressure-sensitive adhesive layer on a base and a die-bonding film on the pressure-sensitive adhesive layer, the pressure-sensitive adhesive layer comprising an acrylic polymer comprising acrylic ester A represented by CH₂═CHCOOR¹ (where R¹ is an alkyl group having 6-10 carbon atoms), acrylic ester B represented by CH₂═CHCOOR² (where R² is an alkyl group having 11 carbon atoms or more), a hydroxyl group-containing monomer, and an isocyanate compound having a radical reactive carbon-carbon double bond, where the ratios of components are 40-10 mol % of the acrylic ester B with respect to 60-90 mol % of the acrylic ester A, 10-30 mol % hydroxyl group-containing monomer with respect to 100 mol % of the total of the acrylic ester A and the acrylic ester B, and 70-90 mol % isocyanate compound with respect to 100 mol % of the monomer containing a hydroxl group.

The present invention is directed to oral compositions comprising an orally-acceptable carrier and a silica abrasive comprising a precipitated amorphous silica compound having an average particle size of from 5 μm to 20 μm, oil absorption of from 60 cc/100 g to 120 cc/100 g, and an Einlehner hardness of from 4 to 11, and methods of use thereof

The invention discloses a ganoderma lucidum pictographic miniascape and a cultivation method of pictographic works of art. Through shape constraint, a red cheese culture medium and sporocarps are shaped to needed shapes. Films are covered after hypha grows full of a bag and feels hard. After mycoderma is cultivated to turn to brown, the covered films are opened, and ganoderma lucidum outlet is covered by the films and ganoderma lucidum outlet cultivation is conducted. After a white growth circle on the edge of the ganoderma lucidum fungus lid turns to light brown and spores are not sent out, a ventral side of the ganoderma lucidum is stuck by film pieces until the ventral side becomes thick and hard. After process, viewing works of art are formed through combination of the ganoderma lucidum culture medium and the sporocarps. The product appearance of the ganoderma lucidum pictographic miniascape is peculiar, color and luster is bright, and longer vigor of life can be maintained. Hypha in a culture medium with a thin wax coating surface can have vigor of life for a long time and a viewing effect can be further improved. The processed sporocarps and culture medium is hard in surface, attractive in color and luster and can be stored for a long time.

This invention relates to anti-static and misfire concrete compound ground including a surface layer and a base layer characterizing that the surface layer is a mixed material layer of 10-30mm ordinary Portland cement and water, misfire broken stone materials and an agent reducing resistance rate, a static discharge net woven with metal wires is set between the base layer and the surface layer with a combined layer, earth metal rods are set at the crunodes of the metal wires and connected by leads then accessed to the public earth pole.

The present invention relates to a method of fabricating a laminate sheet product by using heat and pressure to form thermoformable particulates, such as acrylics and/or non-thermoformable particulates, such as polyester granules, quartz, or silica, into a sheet product. The invention also includes a particulate laminate sheet product comprising a melamine or phenolic backer sheets and a layer of one or more particulates. In preferred embodiments, melamine overlay sheets are also included in the laminate sheet. The invention also includes a particulate laminate sheet product made by the method of fabricating a laminate sheet product using heat and pressure to form thermoformable particulates, such as acrylics and/or non-thermoformable particulates, such as polyester granules, quartz, or silica, into a sheet product.

An object is to provide a magnetic garnet material, even if a thickness of an element is made thin, in which a sufficient Faraday rotation capacity can be obtained, a magnetic field for saturation can be controlled to be less than 200 (Oe), and a magnetic compensation temperature can be controlled to be less than 0° C. as well as to provide a Faraday rotator which can be made thin, suppresses a manufacturing cost and achieves a high yielding. The above object can be achieved by a magnetic garnet material known as the general chemical formula BixYbyGdzM13-x-y-zFewM2uM35-w-uO12 and the Faraday rotator using the above material. However, M1 is more than one kind of chemical elements which can replace Bi, Yb or Gd, M2 is more than one kind of non-magnetic chemical elements which can replace Fe, and M3 is more than one kind of chemical elements which can replace Fe and M2. Further, x, y, z, w and u respectively satisfies 1.0<=x<=1.6, 0.3<=y<=0.7, 0.9<=z<=1.6, 4.0<=w<=4.3 and 0.7<=u<=1.0.

The invention relates to the technical field of building materials. The invention relates to a terrace material, in particular to a high-crack-resistance wear-resistant terrace material and a preparation method thereof. The high-strength concrete comprises the following components in parts by weight: 250-550 parts of Portland cement, 300-800 parts of an aggregate, 0.1-50 parts of an admixture, 0.1-5 parts of a water reducing agent, 0.1-8 parts of redispersible latex powder, 0.05-5 parts of fibers and 0.1-5 parts of an early strength agent. The terrace material has the advantages of being resistant to cracking and cracking, high in abrasion resistance, high in pressure resistance, hard in surface, economical, durable, good in impact resistance, long in service life and the like; by adding the fiber material, the internal structure of the terrace material can be obviously improved, the micro-crack condition is avoided, and the extension of cracks is reduced, so that the toughness, the impermeability and the wear resistance of the terrace material are enhanced.

The present invention relates to wear-resistant mechanical parts.

A multilayer film for use in a simultaneous injection molding-lamination method comprising a layer (A) formed of a polycarbonate resin and a layer (B) formed of a methacrylic resin and acrylic rubber particles, which is laminated on at least one surface of the layer (A). The multilayer film is preferably used as a decorative film having high heat resistance and high surface hardness.

An electric vehicle, such as a golf car or utility vehicle, is provided with an electric motor that provides dynamic braking for the vehicle. The vehicle drivetrain is provided with a limited slip differential in order to prevent the wheels from turning freely when traction is lost.