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公开(公告)号:US12012496B2
公开(公告)日:2024-06-18
申请号:US17059651
申请日:2019-05-24
Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
Inventor: Pieter Jan Antoon Janssen , Tamara Marijke Eggenhuisen , Abraham Johan Van Veen , Joshua Arie Van Den Bogerd
CPC classification number: C08K3/013 , C08J3/005 , C08K5/11 , C08K5/3472 , C08K5/524 , C08L69/00 , B29K2995/002 , C08J3/20 , C08J3/203 , C08J3/22 , C08J3/223 , C08J2369/00
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.