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:
Feb. 12, 2013
Filed:
Dec. 17, 2010
Richard Cheng-ming Yeh, Bellaire, TX (US);
Bruce C. Devoy, Livingston, TX (US);
Vetkav R. Eswaran, Houston, TX (US);
Rui Zhao, Houston, TX (US);
Richard Cheng-Ming Yeh, Bellaire, TX (US);
Bruce C. Devoy, Livingston, TX (US);
Vetkav R. Eswaran, Houston, TX (US);
Rui Zhao, Houston, TX (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
Described herein in one embodiment is a plant for the continuous solution polymerization of one or more monomers in a solvent, e.g., a hydrocarbon solvent. In one aspect, the plant comprises a high pressure pump and at least one heat exchanger downstream of the pump. In another aspect a feed is cooled by three heat exchangers which are refrigerated by means of a common three stage compressor. In another aspect, the plant comprises a primary reactor and a secondary reactor arranged to operate in parallel, in which the ratio of volume of the primary reactor to the secondary reactor is in the range of 60:40 to 95:5. In another aspect, a method of defouling a heat exchanger is provided in which the level of liquid refrigerant in the heat exchanger is temporarily lowered.