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:
May. 20, 2014
Filed:
Feb. 22, 2013
Applicant:
Sabic Innovative Plastics Ip B.v., Bergen op Zoom, NL;
Inventors:
Robert Russell Gallucci, Mount Vernon, IN (US);
Franklin Ehrensbeck, Evansville, IN (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 3/37 (2006.01); C11D 1/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
Processes and compositions for cleaning mixing devices are disclosed that improve the production and quality of polycarbonate resins subsequently produced in the mixing device, while reducing the time needed for cleaning and/or change over. A cleaning mixture comprising polycarbonate resin pellets coated with an alkyl aryl sulfonate salt aqueous solution are used to purge the mixing device.