The present invention concerns a process for decolorizing a polyolefin composition, the process comprising the steps of a) providing a polyolefin composition comprising at least one polyolefin and at least one organic chromophore, b) mixing the polyolefin composition in a melt state at a temperature of 170 to 290° C. with an inorganic oxidizing agent, wherein the inorganic oxidizing agent is selected from the group of inorganic peroxides and hypochlorites, and c) obtaining a decolorized polyolefin composition.

The present invention concerns a process for decolorizing a polyolefin composition, the process comprising the steps of a) providing a polyolefin composition comprising at least one polyolefin and at least one organic chromophore, b) mixing the polyolefin composition in a melt state at a temperature of 170 to 290° C. with an inorganic oxidizing agent, wherein the inorganic oxidizing agent is selected from the group of inorganic peroxides and hypochlorites, and c) obtaining a decolorized polyolefin composition.

An aqueous white conductive primer coating composition, includes: a binder component (A); and a carbon nanotube dispersion liquid (B); and a coating film formed by the aqueous white conductive primer coating composition has an L* value of whiteness based on a CIE color-matching function of 80 or more and a surface resistivity of 10.sup.8 Ω/□ or less.

An aqueous white conductive primer coating composition, includes: a binder component (A); and a carbon nanotube dispersion liquid (B); and a coating film formed by the aqueous white conductive primer coating composition has an L* value of whiteness based on a CIE color-matching function of 80 or more and a surface resistivity of 10.sup.8 Ω/□ or less.

A thermally conductive sheet in which a cured layer of a thermally conductive silicone composition is laminated on one or both sides of a synthetic resin film layer of aromatic polyimide, etc. having excellent heat resistance, electrical insulation, and mechanical strength, wherein good thermal conductivity, good insulation, and strong interlayer adhesion are provided because the thermally conductive silicone composition includes 250 to 600 wt. % of an aspherical thermally conductive filler material, which contains no more than 80 ml/100 g of a DOP oil absorption amount and an organic silicon compound component including an adhesion imparting agent, relative to 100 wt. % of the organic silicon compound component, and moreover the thermally conductive sheet with no brittleness during use can be made using continuous molding.

A thermally conductive sheet in which a cured layer of a thermally conductive silicone composition is laminated on one or both sides of a synthetic resin film layer of aromatic polyimide, etc. having excellent heat resistance, electrical insulation, and mechanical strength, wherein good thermal conductivity, good insulation, and strong interlayer adhesion are provided because the thermally conductive silicone composition includes 250 to 600 wt. % of an aspherical thermally conductive filler material, which contains no more than 80 ml/100 g of a DOP oil absorption amount and an organic silicon compound component including an adhesion imparting agent, relative to 100 wt. % of the organic silicon compound component, and moreover the thermally conductive sheet with no brittleness during use can be made using continuous molding.

A bioelectrode includes a conductive rubber electrode and a silver coating layer provided on the conductive rubber electrode and containing a silicone rubber and silver particles. The silver coating layer contains a modified silicone and contains ions for ion conduction among the silver particles.

A bioelectrode includes a conductive rubber electrode and a silver coating layer provided on the conductive rubber electrode and containing a silicone rubber and silver particles. The silver coating layer contains a modified silicone and contains ions for ion conduction among the silver particles.

The present invention provides a method for preparing an ultra high molecular weight polyethylene (UHMWPE) composite material including the following steps: providing a substrate material having medical grade ultra high molecular weight polyethylene powders, drying the substrate material to obtain fully dried UHMWPE powders, and pressing the fully dried UHMWPE powders to form a UHMWPE board; immersing the UHMWPE board into a graphene oxide solution and performing an ultrasonic induction by an ultrasonic processor such that the graphene oxide solution infiltrates into the UHMWPE substrate to obtain an ultra high molecular weight polyethylene composite material with excellent biocompatibility and tribological properties. The graphene oxide can be adsorbed and evenly spread on the surface of UHMWPE substrate by ultrasonic induction to form a lubricating film which can effectively reduce wear.

The present invention provides a method for preparing an ultra high molecular weight polyethylene (UHMWPE) composite material including the following steps: providing a substrate material having medical grade ultra high molecular weight polyethylene powders, drying the substrate material to obtain fully dried UHMWPE powders, and pressing the fully dried UHMWPE powders to form a UHMWPE board; immersing the UHMWPE board into a graphene oxide solution and performing an ultrasonic induction by an ultrasonic processor such that the graphene oxide solution infiltrates into the UHMWPE substrate to obtain an ultra high molecular weight polyethylene composite material with excellent biocompatibility and tribological properties. The graphene oxide can be adsorbed and evenly spread on the surface of UHMWPE substrate by ultrasonic induction to form a lubricating film which can effectively reduce wear.