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:
Nov. 17, 2020
Ineos Usa Llc, League City, TX (US);
Robert Norman Mohn, Houston, TX (US);
INEOS USA LLC, League City, TX (US);
Abstract
The present invention relates to a process for polymerization of a monomer, and in particular whereby polymer particles are transferred from an upstream polymerization reactor, which process comprises: (a) discharging a mixture comprising polymer particles and reactive gases, which reactive gases comprise hydrogen, from the upstream reactor, (b) transferring the polymer particles and reactive gases into a first chamber which is in open communication with a second chamber during the transfer such that the polymer particles pass through the first chamber into the second chamber, (c) keeping the first and second chamber in open communication for a time period, t, after completing transfer of the polymer particles to the second chamber, and (d) subsequently isolating the second chamber from the first chamber and transferring the polymer particles from the second chamber into a downstream vessel.