The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2025
Filed:
May. 08, 2019
Basf SE, Ludwigshafen am Rhein, DE;
Kolon Plastics Inc., Gwacheon-Si, KR;
Thomas Heitz, Ludwigshafen am Rhein, DE;
Jürgen Demeter, Ludwigshafen am Rhein, DE;
Jin-Sang Choi, Gimcheon, KR;
BASF SE, Ludwigshafen am Rhein, DE;
KOLON PLASTICS, INC., Gwacheon-Si, KR;
Abstract
The present invention relates to a method for the production of a colored polyoxymethylene copolymer by mixing a raw polyoxymethylene copolymer in particulate form, comprising 2 to 30% by weight of unreacted residual monomers, with a coloring agent in particulate form, in a degassing apparatus. In addition, the present invention relates to the colored polyoxymethylene copolymer obtainable by the process and the use of the colored polyoxymethylene copolymer for the production of molding parts.