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:
Jul. 02, 2024
Filed:
Oct. 10, 2019
Shpp Global Technologies B.v., Bergen op Zoom, NL;
Sivakumar Sreeramagiri, Bangalore, IN;
Samir Anapat, Bangalore, IN;
Rajesh Chowdhury, Bangalore, IN;
Ravinath Manchana, Bangalore, IN;
Bhanu Kiran Vankayala, Bangalore, IN;
Shweta Hegde, Bangalore, IN;
Ramesh Narayana, Bangalore, IN;
Yogesha Subbaiah, Bangalore, IN;
SHPP GLOBAL TECHNOLOGIES B.V., Bergen op Zoom, NL;
Abstract
A method for preparing a poly(phenylene ether) includes feeding an oxygen-containing gas phase to a single continuous flow reactor containing a reaction mixture, and oxidatively polymerizing the reaction mixture to form a poly(phenylene ether) in the single reactor. The reaction mixture includes a phenol, a transition metal catalyst, and an organic solvent. A poly(phenylene ether) made by the method and articles including the poly(phenylene ether) are also disclosed. Methods for quantifying phenol concentration and poly(phenylene ether) molecular weight in the reaction mixture are also discussed.