87results about "Frictional elements" patented technology

A friction material has a first layer of a base material and a second layer of at least one type of friction modifying particle having substantially symmetrical geometric shapes on a top surface of the base material. The second layer has an average thickness of about 30 to about 200 microns and the surface area coverage of about 80 to about 100% such that the top layer has a fluid permeability lower than the first layer.

The present invention relates to a method for manufacturing a polyurethane porous product, a polyurethane porous product according to the manufacturing method, and a polishing pad having the polyurethane porous product. According to the present invention, it is possible to manufacture a polishing pad that has excellent polishing efficiency and has a minimal difference in the polishing characteristic during a polishing process and improves uniformity in plane of material that will be polished because the polyurethane porous product of the present invention has small density difference, small hardness difference, and the stabilized quality of material.

A method of reducing corrosion of a corrosive metal containing work piece includes providing a corrosive metal containing work piece having a non-planar surface. The method can further include covering at least about 10% of the non-planar surface with a laminate. The laminate can include an aluminum alloy mesh having a first major surface and a second major surface. The laminate can further include a sliding layer overlying the first major surface. The sliding layer can be in direct contact with the aluminum alloy mesh. In another aspect, a corrosion protection article can include a bushing. The bushing can be in a non-planar shape. The bushing can further be shaped to enfold a work piece. The bushing can include an aluminum alloy mesh having a first major surface and include a sliding layer overlying the first major surface. The sliding layer can be in direct contact with the aluminum alloy mesh.

A sports mat includes a foam sheet, a patterned laminate and a skid proof layer. The foam sheet is made of polyethylene foam. The patterned laminate includes a first plastic film, a second plastic film and a pattern. The first plastic film is laminated on top of the foam sheet. The second plastic film is laminated on top of the first plastic film. The pattern is placed in between the first plastic film and the second plastic film and visible from outside of the sports mat. The skid proof layer is coated over the top surface of the second plastic film. Additionally, the skid proof layer together with the pattern laminate and the second foam layer defines a plurality of indentations and protrusions spread over a top surface of the skid proof layer so as to strengthen connection therebetween.

A sports mat includes a foam sheet, a patterned laminate and a skid proof layer. The foam sheet is made of polyethylene foam. The patterned laminate includes a first plastic film, a second plastic film and a pattern. The first plastic film is laminated on top of the foam sheet. The second plastic film is laminated on top of the first plastic film. The pattern is placed in between the first plastic film and the second plastic film and visible from outside of the sports mat. The skid proof layer is coated over the top surface of the second plastic film. Additionally, the skid proof layer together with the pattern laminate and the second foam layer defines a plurality of indentations and protrusions spread over a top surface of the skid proof layer so as to strengthen connection therebetween.

A laminate comprises a first ductile material textured with barbs and a second friable material. First material is preferably electro-plated steel. Second material may be a brake friction composition. Barbs may be pointed or headed or in combination. Second material may be in the form of castings, sheets or pads. Second material may be impaled by at least some of the barbs. Lamination of first and second materials preferably includes an adhesive therebetween. The adhesive may include uncured rubber to be vulcanized in place.

A floor mat is provided having a top layer made with polyester felt capable of receiving printing by sublimation printing techniques, a bottom layer made with latex foam, and an adhesive layer between the top and bottom layers. The top layer includes a four color process printing applied thereon by sublimation of sublimation inks. The floor mat may further include a middle layer made with foam to provide extra cushioning for the floor mat.

A wear resistant friction coating (WRFC) can be applied on a lightweight metallic substrate, by applying a cold gas dynamic spray bond coat containing more iron than any other single element directly onto a surface of the substrate, and thermal spraying the WRFC coating over the bond coat to a thickness of at least 500 μm. Corrosion resistance, adhesion, thermal cycling resistance, and wear resistance have been demonstrated.

A friction-reducing abrasion resistant bearing material is described. The material comprises a monolithic, porous polytetrafluoroethylene (ePTFE) having dispersed therein a wear-resistant thermosetting or thermoplastic resin material.

The invention relates to the technical field of power generation, in particular to a power generation unit, a dual-channel respiratory system and a mask, wherein the nano power generation unit comprises a first friction assembly and a second friction assembly arranged opposite to each other; the first friction assembly comprises a first conductive layer and a first friction layer; the second friction assembly includes a second conductive layer and a second friction layer; a separation station and a compression station are arranged between the first friction assembly and the second friction assembly; the first friction layer and the second friction layer are in frictional contact with each other to generate contact charges and output through the first conductive layer and the second conductive layer when the first friction member and the second friction member are in the compression station, and the first friction layer and the second friction layer are separated from each other when the first friction member and the second friction member are in the separation station; and the first friction assembly and the second friction assembly have a porous air permeable structure. The nano power generation unit is capable of filtering micron-to sub-micron-scale fine particles in the inhaled air.

A friction-reducing abrasion resistant bearing material is described. The material comprises a monolithic, porous polytetrafluoroethylene (ePTFE) having dispersed therein a wear-resistant thermosetting or thermoplastic resin material.

A hose comprising a core layer, an elastomeric friction layer overlaying the core layer, at least one reinforcement layer overlaying the friction layer, and a cover layer overlaying the at least one reinforcement layer, wherein the core layer is comprised of a blend of two different non-plasticized polyamides.

An apparatus (1) with a reciprocating component (3) fitted with composite cushioning slides (13) on an exterior surface (8, 9). The reciprocating component (3) is movable along a reciprocation path and the composite cushioning slide (13) includes an exterior first layer (14) and an interior second layer (15). The first layer (14) is formed with an exterior surface (16) configured and orientated to come into sliding contact with a containment surface (7) of the apparatus (1) during the reciprocating movement of the reciprocating component (3), the first layer (14) is formed from a material of predetermined friction and / or abrasion resistance properties. The interior second layer (15) is located between the first layer (14) and reciprocating component (3) and is formed from a shock-absorbing material having predetermined shock absorbing properties.

The present invention relates to: a method for manufacturing a polymer film, the method including a base film forming step for co-extruding a first resin containing a polyamide-based resin and a second resin containing a copolymer including polyamide-based segments and polyether-based segments; a co-extruded film including a base film including a first resin layer containing a polyamide-based resin, and a second resin layer containing a copolymer having polyamide-based segments and polyether-based segments; to a co-extruded film including a base film including a first resin layer and a second resin layer, which have different melting points; and to a method for manufacturing a polymer film, the method including a base film forming step including a step of co-extruding a first resin and a second resin, which have different melting points.

A hose comprising a core layer, an elastomeric friction layer overlaying the core layer, at least one reinforcement layer overlaying the friction layer, and a cover layer overlaying the at least one reinforcement layer, wherein the core layer is comprised of a blend of two different non-plasticized polyamides.

The invention seeks to minimize the vibration and noise in a clutch plate system, by damping either or both the clutch plate and pressure plate with the use of various engineered viscoelastic materials. A clutch plate assembly is provided, comprising a plate body having a first surface and a second surface. In a first embodiment of the invention, the plate body is formed from a laminated sheet structure including two layers of steel having a viscoelastic core between the two layers and coextensive with the two layers. The viscoelastic core may be tunable to damp at different temperatures. In a second embodiment of the invention, an engineered viscoelastic material is used as a layer of bonding material for the first and second surface of the plate body. A method for damping a clutch plate assembly is provided.