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:
Dec. 28, 2010
Filed:
May. 29, 2009
Richard C. Yeh, Bellaire, TX (US);
Yu Feng Wang, Houston, TX (US);
Jean-paul Swoboda, Grandcamp, FR;
Oscar K. Broussard, Iii, Baton Rouge, LA (US);
Richard C. Yeh, Bellaire, TX (US);
Yu Feng Wang, Houston, TX (US);
Jean-Paul Swoboda, Grandcamp, FR;
Oscar K. Broussard, III, Baton Rouge, LA (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
In the production of elastomers the product obtained from the polymerization process is often in the form of a slurry. Described herein are an apparatus and a process for 'finishing' the elastomer, i.e., dewatering and drying the elastomer. The process comprises the steps of obtaining a slurry comprising water and elastomer; passing the slurry through a first dewatering device to produce a wet elastomer crumb, wherein the first dewatering device comprises two dewatering extruders in parallel; passing the wet elastomer crumb through a second dewatering device; and then passing the wet elastomer crumb through a drying device to produce a dried elastomer crumb.