公开(公告)号：US20230219262A1

公开(公告)日：2023-07-13

申请号：US18008703

申请日：2021-06-18

Applicant: Arkema France

Inventor： Anthony BONNET ,  Salima BOUTTI

IPC: B29B17/04

CPC classification number: B29B17/0412 ,  B29B2017/0484 ,  B29L2031/753

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.

公开(公告)号：US20230241428A1

公开(公告)日：2023-08-03

申请号：US18008699

申请日：2021-06-18

Applicant: Arkema France

Inventor： Anthony BONNET ,  Jerome CHAUVEAU ,  Salima BOUTTI

IPC: A62B23/02 ,  B01D39/16 ,  A62B18/08

CPC classification number: A62B23/025 ,  A62B18/084 ,  B01D39/1623 ,  B01D2239/10 ,  B01D2239/025 ,  B01D2239/0618 ,  B01D2239/0631 ,  B01D2239/0636 ,  B01D2239/0654 ,  B01D2239/1233 ,  B01D2239/1291

Abstract: The invention relates to a respiratory protection mask made of polyvinylidene fluoride and to a method for manufacturing said mask. The invention also relates to a method for reconditioning said mask. The invention also relates to a method for recycling this respiratory protection mask.