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:
Apr. 29, 2014
Filed:
May. 03, 2011
Ronald Tharappel, Missouri City, TX (US);
Renaud Oreins, Wavre, BE;
William Gauthier, Houston, TX (US);
David Attoe, Houston, TX (US);
Kevin Mcgovern, Houston, TX (US);
Michel Messiaen, Waterloo, BE;
David Rauscher, Angleton, TX (US);
Kai Hortmann, Dilbeak, BE;
Michel Daumerie, Houston, TX (US);
Ronald Tharappel, Missouri City, TX (US);
Renaud Oreins, Wavre, BE;
William Gauthier, Houston, TX (US);
David Attoe, Houston, TX (US);
Kevin McGovern, Houston, TX (US);
Michel Messiaen, Waterloo, BE;
David Rauscher, Angleton, TX (US);
Kai Hortmann, Dilbeak, BE;
Michel Daumerie, Houston, TX (US);
Fina Technology, Inc., Houston, TX (US);
Abstract
Polymerization processes in a bulk loop reactor are described herein. In particular, a method of contacting a flow of metallocene with a flow of propylene is provided. This method includes directing the flow of metallocene towards a junction, directing the flow of propylene towards the junction and maintaining a portion of the flow of metallocene separate from a portion of the flow propylene within a portion of the junction downstream of the flow of propylene into the junction. In another embodiment, a method of introducing a quantity of antifouling agent into a catalyst mixing system is provided. In this embodiment a portion of the antifouling agent is introduced at or downstream of a point of contact of a stream of propylene with a stream of catalyst. The antifouling agent may be a member, alone or in combination with other members, selected from Stadis 450 Conductivity Improver, Synperonic antifouling agent, and Pluronic antifouling agent.