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. 21, 2023
Filed:
May. 30, 2019
Dow Global Technologies Llc, Midland, MI (US);
Maria Pollard, Pearland, TX (US);
Robert D. Swindoll, Clute, TX (US);
Pradeep Jain, Lake Jackson, TX (US);
Alec Y. Wang, Sugar Land, TX (US);
Jorge Rubalcaba, Pearland, TX (US);
Shrikant Dhodapkar, Lake Jackson, TX (US);
Sean W. Ewart, Pearland, TX (US);
Bradley K. Blanchard, Baton Rouge, LA (US);
George W. Haun, Jr., Baton Rouge, LA (US);
Michael J. Zogg, Jr., Houston, TX (US);
DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US);
Abstract
Disclosed herein is a system for solution polymerization comprising a reactor system that is operative to receive a monomer and to react the monomer to form a polymer; a plurality of devolatilization vessels located downstream of the reactor system, where each devolatilization vessel operates at a lower pressure than the preceding devolatilization vessel; and a heat exchanger disposed between two devolatilization vessels and in fluid communication with them, where the heat exchanger has an inlet port temperature of 100° C. to 230° C., an outlet port temperature of 200° C. to 300° C., an inlet port pressure of 35 to 250 kgf/cmand an outlet port pressure of 20 to 200 kgf/cm; and wherein the polymer solution remains in a single phase during its residence in the heat exchanger.