Process for improving carbon black dispersion

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United States of America Patent

PATENT NO RE47079
SERIAL NO

15625433

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Abstract

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A masterbatch comprising pigment and demolding agent is provided. The demolding agent is selected from the group comprising low molecular weight polyolefin oils, low molecular weight polyolefin waxes, montan waxes and aliphatic or aromatic carboxylic acid esters of fatty acids and/or fatty alcohols, wherein the pigment content of the masterbatch is from 3 to 70 wt. %, based on the total weight of the masterbatch. The masterbatch is suitable for preparation of a polymer composition having improved pigment dispersion.

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Patent Owner(s)

  • COVESTRO DEUTSCHLAND AG

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eckel, Thomas Dormagen, DE 149 1010
Reichenauer, Joerg Krefeld, DE 12 47
Rudolf, Reiner Langenfeld, DE 25 198
Seidel, Andreas Dormagen, DE 121 511
Thiem, Hans-Jurgen Dormagen, DE 7 19

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