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:
Jul. 26, 2022
Filed:
Mar. 16, 2020
Braskem S.a., Camaçari, BR;
Eduardo José Dotti, São Paulo, BR;
Omar Wandir Renck, São Paulo, BR;
Roger Ribeiro Malmegrim, São Paulo, BR;
Marcelo Farah, São Paulo, BR;
Antonio Marchi Netto, São Paulo, BR;
Cid Miro Neto, São Paulo, BR;
Jorge Manuel Jardim da Silva, São Paulo, BR;
Braskem S.A., Camaçari, BR;
Abstract
A method may include polymerizing ethylene in a tubular reactor, where the polymerization is substantially free of a chain transfer agent. A method may include polymerizing ethylene in a tubular reactor, the ethylene having a specific delivery pressure and the polymerization having one or more specific peak temperatures. The molecular weight of the resulting polyethylene may be controlled by the selection of the delivery pressure and the one or more peak temperatures.