公开(公告)号：US20230211598A1

公开(公告)日：2023-07-06

申请号：US18008509

申请日：2021-05-21

Applicant: BASF SE

Inventor： Ulrike LICHT ,  Oliver HARTZ ,  Lionel GEHRINGER ,  Sabine BOCIEK ,  Erich RIES ,  Juergen AHLERS ,  Stephan DOHMEN

IPC: B32B43/00 ,  B32B7/12 ,  B32B5/18 ,  B32B5/24 ,  B32B5/02 ,  B32B1/08

CPC classification number: B32B43/006 ,  B32B7/12 ,  B32B5/18 ,  B32B5/245 ,  B32B5/022 ,  B32B5/026 ,  B32B1/08 ,  B32B2255/26 ,  B32B2307/748 ,  B32B2266/0292 ,  B32B2266/0278 ,  B32B2262/0276 ,  B32B2437/02 ,  B32B2250/02 ,  B32B2433/04

Abstract: A method is described for debonding a bonded article. The bonded article comprises at least two components which are bonded to one another by means of a polyurethane adhesive selected from aqueous polyurethane dispersion adhesives and polyurethane hotmelt adhesives. At least one of the components is a thermoplastic polyurethane. The components are debonded by treatment with an aqueous surfactant composition at elevated temperatures.