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:
Mar. 31, 2020
Filed:
Nov. 21, 2016
Applicant:
Sabic Global Technologies B.v., Bergen Op Zoom, NL;
Inventor:
Madhav Ghanta, Delmar, NY (US);
Assignee:
SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 65/44 (2006.01); C08L 71/12 (2006.01); B01D 53/22 (2006.01); B01D 69/08 (2006.01); B01D 71/52 (2006.01);
U.S. Cl.
CPC ...
C08G 65/44 (2013.01); B01D 53/22 (2013.01); B01D 53/228 (2013.01); B01D 69/08 (2013.01); B01D 71/52 (2013.01); C08L 71/123 (2013.01); B01D 2053/224 (2013.01); C08L 2203/12 (2013.01);
Abstract
A poly(phenylene ether) can be prepared by a method that includes reacting 2,6-dimethylphenol in the presence of toluene, oxygen, copper ion, bromide ion, and N,N'-di-tert-butylethylenediamine to form a poly(phenylene ether). The mole ratio of 2,6-dimethylphenol to copper ion is 160:1 to 300:1, the mole ratio of N,N′-di-tert-butylethylenediamine to copper ion is 1.5:1 to 3:1, and the mole ratio of atomic oxygen to 2,6-dimethylphenol is 0.9:1 to 1.5:1. The process can produce poly(phenylene ether) having a high molecular weight and a high incorporated amine content.