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:
Jun. 20, 2023
Filed:
May. 03, 2021
Applicant:
Ikea Supply Ag, Pratteln, CH;
Inventor:
Zengwei Guo, Gothenburg, SE;
Assignee:
IKEA Supply AG, Pratteln, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 11/24 (2006.01); C08J 11/16 (2006.01);
U.S. Cl.
CPC ...
C08J 11/16 (2013.01); C08J 11/24 (2013.01); C08J 2367/02 (2013.01);
Abstract
A method for recovering natural fibers from a textile comprising polyester and natural fibers. The method comprises the steps of: providing said textile soaked in a mixture comprising a solvent and a catalyst, providing and maintaining a temperature of said mixture comprising said textile within a range of 80-240° C. during depolymerization of polyester in said textile; and recovering natural fibers after said depolymerization, wherein, in said step of providing said textile soaked in said mixture, said catalyst of said mixture comprises calcium oxide.