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:
Oct. 18, 2022
Filed:
Nov. 14, 2019
Sabic 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;
Hareesh Shamrao Deshpande, Bangalore, IN;
SHPP GLOBAL TECHNOLOGIES B.V., Bergen op Zoom, NL;
Abstract
A method for preparing a poly(phenylene ether) includes feeding air to a continuous flow reactor that contains a reaction mixture including a phenol, a transition metal catalyst, and an organic solvent; and oxidatively polymerizing the reaction mixture at a specified temperature and pressure to form a poly(phenylene ether). The reaction mixture has a residence time in the continuous flow reactor of less than or equal to 30 minutes. Poly(phenylene ether)s prepared by the method and articles including the poly(phenylene ether)s are also described.