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:
Jan. 03, 2023
Filed:
Aug. 22, 2017
Applicant:
Teijin Aramid B.v., Arnhem, NL;
Inventors:
Assignee:
TEIJIN ARAMID B.V., Arnhem, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 13/26 (2006.01); C08L 77/10 (2006.01); D01F 6/90 (2006.01); D06M 15/59 (2006.01);
U.S. Cl.
CPC ...
D21H 13/26 (2013.01); C08L 77/10 (2013.01); D01F 6/905 (2013.01); D06M 15/59 (2013.01);
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.