Tubing, such as medical tubing for administration of intravenous fluid, can include an inner layer, an outer layer concentrically disposed about and surrounding the inner layer, and an intermediate layer interposed between the inner and outer layers. The intermediate layer may include a light protection additive therein.

An elastomer laminate comprises at least two adjacent layers, the first layer consisting of a composition based on 20 to 100 phr of at least one copolymer comprising ethylene units and units of a formula CH.sub.2?CRCH?CH.sub.2, the ethylene units in the copolymer representing more than 50 mol % of the monomer units, R representing a hydrocarbon chain having 3 to 20 carbon atoms, 0 to 80 phr of at least one diene elastomer having a weight content of diene units of greater than 50%, 10 to 100 phr of a plasticizing system comprising at least one plasticizing resin having a glass transition temperature above 20? C. and/or at least one plasticizer that is liquid at 23? C., a reinforcing filler, and a crosslinking system, and the second layer consisting of a composition based on a diene elastomer having a weight content of diene units of greater than 50% and a crosslinking system.

Provide a laminate constituted by epichlorohydrin rubber layer and fluororubber layer that are strongly vulcanization-bonded together. A rubber laminate constituted by vulcanization-bonding an epichlorohydrin rubber layer that contains at least (a) magnesium oxide, (b) polythiol vulcanizing agent, (c) at least one type of compound selected from 1,8-diazabicyclo (5,4,0) undecene-7,1,5-diazabicyclo (4,3,0) nonene-5, and salts thereof, (d) at least one type of compound selected from organic phosphonium salts and organic ammonium salts, and (e) maleic anhydride modified polybutadiene, and a fluororubber layer; wherein such rubber laminate is characterized in that: the content of the polythiol vulcanizing agent (b) in the epichlorohydrin rubber layer is 0.3 to 1.2 parts by weight per 100 parts by weight of the epichlorohydrin rubber; and the content of the maleic anhydride modified polybutadiene (e) in the epichlorohydrin rubber layer is 0.3 to 1.5 parts by weight per 100 parts by weight of the epichlorohydrin rubber.

A heat-conducting sheet according to the present invention is a heat-conducting sheet having an initial Asker C hardness of 50 or less, the heat-conducting sheet containing an elastomer resin at the volume proportion of 30 to 70%, and a thermally conductive filler at the volume proportion of 30 to 70%, in which the elastomer resin has a viscosity at 25 C. of 3000 Pa.Math.s or less, and the elastomer resin has a lamella length of 20 mm or more. According to the present invention, a heat-conducting sheet which has initial flexibility sufficient to exhibit excellent shape conformability and in which residual stress is reduced after compression by applying pressure can be provided.

Multi-layer polymeric protective sheets of the invention are usefully applied to a variety of articles, including touchscreen displays on electronic devices. Articles of the invention include display screen protectors having not only glass-like properties, but also flexural integrity associated with conventional screen protectors based on polymeric films. In an exemplary embodiment, a multi-layer polymeric protective sheet comprises a first polyurethane layer and a distinct second polyurethane layer. The protective sheet is essentially free of tempered glass and the coefficient-of-friction of an outwardly exposed surface of the protective sheet is less than about 0.40.

Heavy duty conveyor belts (1) having excellent resistance to high temperatures. These conveyor belts (1) can be repeatedly exposed to temperatures of greater than 200 C. or even 250 C. without compromising the strength or reliability of the belt while providing a greatly extended service life. The conveyor belts (1) may also be manufactured in a commercially viable and cost effective manner. The conveyor belts (1) generally include a reinforcement layer (3), a carry cover layer (2) disposed above the reinforcement layer (3), a pulley cover layer (4) disposed beneath the reinforcement layer (3), and the carry cover layer (2) is comprised of a fluoroelastomer. In some aspects, the conveyor belts (1) have a carry cover layer (2) which includes an outer surface layer (6) containing a fluoroelastomer and an inner layer (7) based upon an EPM elastomer or an EPDM elastomer.

A heat radiation sheet includes a low-hardness insulating heat-radiation layer and a high-heat-radiation insulating layer. Each of the low-hardness insulating heat-radiation layer and the high-heat-radiation insulating layer is formed by mixing a thermoplastic elastomer (TPE), a thermally conductive filler, a flame retardant additive, a process oil, and an additive. A method of manufacturing a heat radiation sheet having a double-layered insulating structure, includes: a first step of forming a mixture by mixing a thermoplastic elastomer (TPE), a thermally conductive filler, a flame retardant additive, a process oil, and an additive; a second step of melt-extruding the mixture at a temperature of 120 to 300 by a melt extrusion apparatus to from a melt extrudate; a third step of cutting the melt extrudate into a pellet form; and a fourth step of sheeting through melt-extruding the pellet into a sheet form by a melt extrusion apparatus.

A block of construction material is fabricated by harvesting a plurality of tread strips from a plurality of tires by, for each tire, removing a tread texture of a tread cap from each tire using a tread removal device while leaving a remaining portion of the tread cap intact with one or more sidewalls and shoulders of each tire, removing the side walls and the entire shoulders from each tire by cutting through the remaining portion of each tread cap, and slicing the remaining portion of each tread cap to produce tread strips. Each strip is preheated, and while maintaining the temperature, stacked onto the gummed previous strips, until a block of desirable size is yielded. Use of fasteners, plates and membranes to maintain the stacked tread strips into a block arrangement is eliminated.

The present invention relates to a fuel hose made from a metal-plated elastomer and to a method for its manufacturing.

A production method for a laminate of a fluorosilicone rubber and a silicone rubber is provided. The production method comprises the following steps: (1) curing a fluorosilicone rubber composition comprising: (A) an organopolysiloxane having alkenyl groups and fluoroalkyl groups, (B) an organopolysiloxane having silicon atom-bonded hydrogen atoms and fluoroalkyl groups, and (C) a hydrosilylation reaction catalyst; (2) laminating a silicone rubber composition comprising: (D) an organopolysiloxane having alkenyl groups and not having fluoroalkyl groups, and (E) an organic peroxide on a surface of a fluorosilicone rubber produced in step (1) above; and (3) curing a silicone rubber composition layer in a laminate produced in step (2) above. A laminate in which a fluorosilicone rubber layer and a silicone rubber layer are adhered well using a hydrosilylation reaction curable fluorosilicone rubber composition is produced.