Patent ID: 6083446
Filing Date: 2000-07-04
Classification: B29C,B29K,B32B,Y10T

Abstract:
A process for producing a multi-colored thermoplastic film by placing slush material of a colorless or uniformly monochromatic plastic base material and a colorant material mixed incompletely with the former in a heatable and rotatable mold with a mold surface, the mold is heated to a mold temperature and rotation is started, so that the slush material is distributed and deposited on the mold surface, the slush material is then sintered and gelled, and said thermoplastic film is un-molded after cooling wherein the colorant material is supplied in the form of a plurality of coloring elements which consist of a colorant content and a transparent plastic shell surrounding the colorant content, and the colorant content is left in the plastic shell during sintering and gelling.