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. 27, 2011
Filed:
Feb. 24, 2009
Applicants:
David C. Bradford, Winston-Salem, NC (US);
M. Zaki Ali, Mendota Heights, MN (US);
Inventors:
David C. Bradford, Winston-Salem, NC (US);
M. Zaki Ali, Mendota Heights, MN (US);
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 61/00 (2006.01); C02F 1/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
Polymer-containing solution can be purified and the solvent reused by subjecting the solution to microfiltration using tubular filters having an average pore diameter of less than 1 μm and a filtration pressure of at least 0.35 MPa. This method is particularly useful for reclaiming and reusing solvents that are used in the development or chemical washout of flexographic printing plates.