Provided is a thermally conductive resin sheet having sufficient withstand voltage performance and excellent moisture absorption reflow tolerance that comprises a resin composition containing a crystalline thermoplastic resin having a melting point of 300° C. or higher and a thermally conductive filler, the thermally conductive filler comprising boron nitride agglomerated particles.

In addition, the thermally conductive resin sheet according to another embodiment of the present invention comprises a resin composition containing 15% by mass or more and 40% by mass or less of a crystalline thermoplastic resin having a melting point of 300° C. or higher and 60% by mass or more and 85% by mass or less of a thermally conductive filler, a thermal conductivity of the thermally conductive resin sheet in the thickness direction at 25° C. being 5.0 W/m.Math.K or more.

A conveyer module, small fragments of which are detectable by X-ray and magnetic sensors, is formed from a compounded mixture of a polyketone, stainless steel powder, and barium sulfate powder. The thermoplastic polymer comprises a polyketone constituting less than 95.5% by weight of the mixture. The stainless steel constitutes at least 0.5% by weight of the mixture, and the barium sulfate constitutes at least 4% or more by weight of the mixture.

In general, in various embodiments, the present disclosure is directed systems and methods for producing a porous surface from a solid piece of polymer. In particular, the present disclosure is directed to systems that include a track assembly, mold assembly, press assembly, and methods for using the same for producing a porous surface from a solid piece of polymer. In some embodiments, the present systems and methods are directed to processing a polymer at a temperature below a melting point of the polymer to produce a solid piece of polymer with an integrated a porous surface.

A method of activating a surface of a plastics substrate formed from: (a) polyaryletherketone such as polyether ether ketone (PEEK) polyether ketone ketone (PEKK), polyether ketone (PEK); polyether ether ketone ketone (PEEKK); or polyether ketone ether ketone ketone (PEKEKK); (b) a polymer containing a phenyl group directly attached to a carbonyl group, for example polybutadiene terephthalate (PBT) optionally wherein the carbonyl group is part of an amide group, such as polyarylamide (PARA); (c) polyphenylene sulfide (PPS); or (d) polyetherimide (PEI); for subsequent bonding, the method comprising the step of exposing the surface to actinic radiation wherein the actinic radiation: includes radiation with wavelength in the range from about 10 nm to about 1000 nm; the energy of the actinic radiation to which the surface is exposed is in the range from about 0.5 J/cm.sup.2 to about 300 J/cm.sup.2. Hard to bond substrates are then more easily subsequently bonded for example using acrylic, epoxy or anaerobic adhesive.

In general, in various embodiments, the present disclosure is directed systems and methods for producing a porous surface from a solid piece of polymer. In particular, the present disclosure is directed to systems that include a track assembly, mold assembly, press assembly, and methods for using the same for producing a porous surface from a solid piece of polymer. In some embodiments, the present systems and methods are directed to processing a polymer at a temperature below a melting point of the polymer to produce a solid piece of polymer with an integrated a porous surface.

The present disclosure relates to a process for preparing a continuous fiber filament based on a) the spreading of the fiber tow, b) the impregnation of the fiber tow in an liquid medium, comprising polymer powder particles of a certain size comprising poly(aryl ether ketone), an aqueous solvent and at least one surfactant selected from the group consisting of alkylphenoxy poly(ethyleneoxy) ethanol surfactants, c) the heating of the impregnated fiber above the melting temperature of the polymer and d) a step consisting in calendering the filaments using a die of cylindrical geometry. The present invention also relates to continuous fiber filament obtained from such process and to the use of the filaments for preparing three-dimensional objects.

Provided is a damping pad with low compression set, which is prepared by a method comprising the following steps: (1) providing a polymer comprising a thermoplastic ether ester elastomer, in which the polymer material has specific melt flow index, Shore D hardness, tensile modulus, density, and elongation at break; (2) melting the polymer material to obtain a molten polymer material; (3) adding nitrogen gas or carbon dioxide into the molten polymer to obtain a mixture; (4) turning the mixture into a supercritical state and compounding the mixture, to obtain a supercritical fluid blend; and (5) injecting and molding the supercritical fluid blend to obtain the damping pad with low compression set which has compression set of 40% or less, deceleration value of 20 or less, and rebound resilience of 50% or more.

Provided is a damping pad with low compression set, which is prepared by a method comprising the following steps: (1) providing a polymer comprising a thermoplastic ether ester elastomer, in which the polymer material has specific melt flow index, Shore D hardness, tensile modulus, density, and elongation at break; (2) melting the polymer material to obtain a molten polymer material; (3) adding nitrogen gas or carbon dioxide into the molten polymer to obtain a mixture; (4) turning the mixture into a supercritical state and compounding the mixture, to obtain a supercritical fluid blend; and (5) injecting and molding the supercritical fluid blend to obtain the damping pad with low compression set which has compression set of 40% or less, deceleration value of 20 or less, and rebound resilience of 50% or more.

The present invention concerns Method for producing a unidirectional tape, the method comprising the steps of a) providing an impregnation slurry comprising primary particles and secondary particles, water, optionally an organic carrying medium, optionally an organic compound and optionally a surface active compound, and providing a unidirectional fiber layer having an average interstitial filament distance, wherein the primary particles comprise a first polymer and the primary particles have a particle size equal to or smaller than the average interstitial filament distance, and the secondary particles comprise a second polymer and the secondary particles have a particle size larger than the average interstitial filament distance, b) impregnating the unidirectional fiber layer with the impregnation slurry to form an impregnated unidirectional fiber web comprising an impregnated unidirectional fiber layer and a surface polymer layer, wherein the impregnated unidirectional fiber layer comprises, preferably consists of, the unidirectional fibers and the primary particles, and the surface polymer layer comprises the secondary particles, c) drying the impregnated unidirectional fiber web to obtain a unidirectional tape.

The present invention relates to a method of producing a prepreg, in which a matrix resin is applied to a reinforcing fiber sheet, where the sheet can continuously run without clogging due to generated fuzz, even at a high running speed, and where the sheet can be efficiently impregnated with the matrix resin. The prepreg is produced by a method which includes a step of allowing a reinforcing fiber sheet to pass horizontally or slantingly through the inside of a coating section storing a matrix resin to apply the matrix resin to the reinforcing fiber sheet, where the coating section includes a liquid pool and a narrowed section which are in communication with each other, where the liquid pool has a portion whose cross-sectional area decreases continuously along a running direction of the reinforcing fiber sheet, and wherein the narrowed section has a slit-like cross-section and has a smaller cross-sectional area than the largest cross-sectional area of the liquid pool.