Internet based electronic commerce system and its method for small and middle scale retail store and wholesaler

摘要

A thermoplastic elastomer composition powder, prepared by adding 0.1 to 5 parts by weight of the following component (c) to 100 parts by weight of grinds of a thermoplastic elastomer composition which is prepared by mixing 100 parts by weight of the following component (a) either with 10 to 250 parts by weight of the following component (b) or with 10 to 250 parts by weight of the component (b) and 0.01 to 10 parts by weight of the following component (d). The composition exhibits a composite kinetic viscosity eta + (1) of 1.5x10 5 P or below at 250 °C and a Newtonian viscosity index n of 0.67 or below; a powder molding process with the powder; and moldings: (a) a polyolefin resin, (b) a rubbery polymer exhibiting a new single tan delta peak in the tan delta-temperature dependence curve as obtained by the solid viscoelasticity measurement of a composition prepared by kneading the rubber polymer and the component (a) together within a temperature range of -70 to 30 °C at a temperature different from the tan delta peak temperatures of the components (a) and (b), and (c) a fine powder having a primary particle diameter of 300 nm or below.