Process for the production of colored polyolefin molded articles and colorants used therein

摘要

A process for the production of a colored polyolefin molded articles comprising adding to a polyolefin either a compound of the formula D-CH2O.OC-R])n as a colorant wherein D is the residue of a common organic pigment, R is an alkyl, alkenyl or aryl group having up to 20 carbon atoms and n is an integer of 1-4, or a mixture of the compound of the above formula with at least one usual pigment, to form a mixture, and then molding the mixture thereby producing the desired colored articles. This invention also relates to the compound of said formula and to a mixture thereof with at least one common pigment.