公开(公告)号：US20210214519A1

公开(公告)日：2021-07-15

申请号：US17059651

申请日：2019-05-24

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Janssen Pieter Jan Antoon ,  Tamara Marijke Eggenhuisen ,  Bram Veen Van ,  Joshua Arie Van Den Bogerd

IPC: C08K3/013 ,  C08L69/00 ,  C08K5/11 ,  C08K5/3472 ,  C08K5/524 ,  C08J3/00

Abstract: Method for the manufacture of a colored polymer composition comprising a polymer, a release agent and a colorant, the method comprising the steps of feeding a solid form of a release agent composition comprising said release agent and said colorant to a feed section of a melt mixing device, feeding said polymer to said melt mixing device and mixing said release agent composition and said polymer in said melt mixing device at a temperature above the melting temperature of said polymer, wherein—said colorant is a pigment, or a dye which is soluble in said release agent, —said polymer comprises or consists of polycarbonate, —the release agent is selected from the group consisting of penta-erythritol tetra stearate, glycerol monostearate, glycerol tristearate and mixtures thereof.