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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.:

US 12448520 B1

PDFFull Text
Date of Patent:
Oct. 21, 2025

Filed:

Jun. 09, 2021

Process for colouring a thermoplastic polymer

Applicant:

Röhm Gmbh, Darmstadt, DE;

Inventors:

Ursula Golchert, Dieburg, DE;

Ralf Richter, Hanau, DE;

Jörg Kraft, Schoenau, DE;

Gerald Dietrich, Alsbach-Haehnlein, DE;

Ernst Becker, Bensheim, DE;

Stefan Nau, Buettelborn, DE;

Assignee:

Röhm GmbH, Darmstadt, DE;

Attorney:

Grüneberg and Myers PLLC

Primary Examiner:

Mark Eashoo

Assistant Examiner:

Zhen undefined Liu

Int. Cl.
CPC ...
C08J 3/20 (2006.01); C08J 3/205 (2006.01); C08J 3/22 (2006.01); C08K 5/45 (2006.01); C09B 39/00 (2006.01); C09B 67/20 (2006.01); C09B 67/22 (2006.01);
U.S. Cl.
CPC ...
C09B 67/0063 (2013.01); C08J 3/203 (2013.01); C08J 3/2053 (2013.01); C08J 3/226 (2013.01); C08K 5/45 (2013.01); C09B 39/00 (2013.01); C09B 67/0041 (2013.01); C08J 2333/12 (2013.01);
Abstract

A process can be used for manufacturing a coloured moulding composition with an improved optical appearance and a particularly high thermal stability. The process involves providing a thermoplastic polymer and adding a colouring preparation, or a liquid composition or a master batch containing the colouring preparation. Injection moulded parts and extruded parts can be composed of the coloured moulding composition.

Find Patent Forward Citations

Golchert, Ursula. (2025). Process for colouring a thermoplastic polymer (U.S. Patent No. 12448520). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12448520

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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