Invention Grant
- Patent Title: Process for producing leather
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Application No.: US16308854Application Date: 2017-06-12
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Publication No.: US11242574B2Publication Date: 2022-02-08
- Inventor: Qing Shi , Laszlo Szarvas , Biyu Peng , Chunxiao Zhang
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen am Rhein
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen am Rhein
- Agency: Arent Fox LLP
- Priority: WOPCT/CN2016/085705 20160614
- International Application: PCT/EP2017/064299 WO 20170612
- International Announcement: WO2017/216111 WO 20171221
- Main IPC: C14C1/08
- IPC: C14C1/08 ; C14C3/06
Abstract:
The present invention relates to a process for producing leather in which methanesulfonic acid (MSA) is used in the pickling step at a high pH value, and the use of MSA is to improve the quality of the final leather product as well as to improve the environmental impact of the waste liquor.
Public/Granted literature
- US20190309378A1 PROCESS FOR PRODUCING LEATHER Public/Granted day:2019-10-10
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