PROCESS TO ENHANCE COLORATION OF UHMWPE ARTICLE, THE COLORED ARTICLE AND PRODUCTS CONTAINING THE ARTICLE

摘要

Process for enhancing the color intensity of a colored molded UHMWPE article comprising the steps of a) providing an UHMWPE, a coloring agent and a color enhancer, b) molding the UHMWPE into a molded article, c) adding the color enhancer to the UHMWPE before or during the molding step and d) adding the coloring agent to the UHMWPE before, during or after the molding step, wherein the color enhancer is a material with a hardness higher than the hardness of the molded article measured in the absence of the color enhancer.