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:
Aug. 05, 2025
Filed:
Jun. 18, 2021
Applicant:
Arkema France, Colombes, FR;
Inventors:
Anthony Bonnet, Colombes, FR;
Salima Boutti, Serquigny, FR;
Assignee:
Arkema France, Puteaux, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29B 17/04 (2006.01); B29K 27/00 (2006.01); B29K 105/12 (2006.01); B29L 31/00 (2006.01); B29L 31/48 (2006.01);
U.S. Cl.
CPC ...
B29B 17/0412 (2013.01); B29B 2017/0484 (2013.01); B29K 2027/16 (2013.01); B29K 2105/124 (2013.01); B29L 2031/4835 (2013.01); B29L 2031/753 (2013.01);
Abstract
The invention relates to a method for recycling respiratory protection masks comprising a plurality of layers manufactured from a single thermoplastic polymer chosen from polypropylene, polyethylene terephthalate, polylactic acid, homopolymers and copolymers of polyamide 6 (PA6) and long-chain polyamides such as PA11 or PA12, and comprising a filtration layer made of polyvinylidene fluoride.