Patent · US Active

Alkoxylation process using tubular reactor

US10920013B2 · kind B2 · utility

0Cited by

7References

12Claims

0Family size

Assignee

DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

Nima Nikbin · Lake Jackson, US
Carlos M. Villa · Freeport, US
Maria Jose Nieves Remacha · Lake Jackson, US
Irfan Khan · San Diego, US
William H. Heath · Lake Jackson, US
John G. Pendergast, Jr. · Lake Jackson, US
Matthias Schaefer · Philippine, NL
Anna Forlin · Vigonza, IT

Key dates

Filing date	Sep 17, 2017
Grant date	Feb 16, 2021
Priority date	—
Expiry date	Feb 13, 2038

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2219/1923
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Alkylene oxides are polymerized in a tubular reactor. The alkylene oxide is continuously introduced into the tubular reactor through multiple introduction points located along the length of the tubular reactor. Monomer flow rates are increased along the length of the reactor to maintain a nearly constant concentration of unreacted alkylene oxide.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.