Invention Grant
- Patent Title: Method for manufacturing aramid pulp comprising PVP
-
Application No.: US16325597Application Date: 2017-08-22
-
Publication No.: US11542660B2Publication Date: 2023-01-03
- Inventor: Walter Nijhuis , Jan-Cees Tiecken , Frank Diedering
- Applicant: TEIJIN ARAMID B.V.
- Applicant Address: NL Arnhem
- Assignee: TEIJIN ARAMID B.V.
- Current Assignee: TEIJIN ARAMID B.V.
- Current Assignee Address: NL Arnhem
- Agency: Oliff PLC
- Priority: EP16185527 20160824
- International Application: PCT/EP2017/071156 WO 20170822
- International Announcement: WO2018/037017 WO 20180301
- Main IPC: D21H13/26
- IPC: D21H13/26 ; C08L77/10 ; D01F6/90 ; D06M15/59

Abstract:
A process for manufacturing an aramid pulp including polyvinyl pyrrolidone (PVP), the method including the steps of: combining para-aramid short-cut with PVP in an aqueous solution to form a mixture, subjecting the mixture to a refining step to form a para-aramid pulp including PVP. It has been found that the process makes it possible to obtain a PVP pulp with improved dewatering properties and energy consumption in combination with a high PVP retention.
Public/Granted literature
- US20190177917A1 METHOD FOR MANUFACTURING ARAMID PULP COMPRISING PVP Public/Granted day:2019-06-13
Information query