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:
Nov. 18, 2025
Filed:
Jul. 11, 2023
Applicant:
Hscc Sustainable Venturing B.v., Urmond, NL;
Inventors:
Jasper Verduyckt, Urmond, NL;
Jarno Martijn Westerhof, Urmond, NL;
Peter Roos, Urmond, NL;
Anna Dite Cuiper, Urmond, NL;
Kate Emily Murphy, Urmond, NL;
Wenjing Fu, Urmond, NL;
Johan Thomas Tinge, Urmond, NL;
Assignee:
HSCC Sustainable Venturing B.V., Urmond, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 201/12 (2006.01); C07D 201/16 (2006.01); C07D 223/10 (2006.01); C08G 69/14 (2006.01); C08J 11/14 (2006.01);
U.S. Cl.
CPC ...
C07D 201/12 (2013.01); C07D 201/16 (2013.01); C08G 69/14 (2013.01); C08J 11/14 (2013.01); C08J 2377/02 (2013.01);
Abstract
The application provides a process for recovering purified ε-caprolactam from nylon 6-containing multi-component material which comprises the steps of a) providing a pre-concentrated nylon 6-containing material obtained by extraction, b) depolymerization, c) recovery, and d) purification that comprises extraction, back-extraction, distillation and crystallization.