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:
Nov. 25, 2003
Filed:
Jan. 18, 2002
Applicant:
Inventor:
Didier J. Martin, Givry, FR;
Assignee:
Eastman Kodak Company, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 1/712 ;
U.S. Cl.
CPC ...
B01D 1/712 ;
Abstract
The invention relates to a method of recycling wash-water resulting from the treatment of a film provided with a carbon particles based backing layer, and especially from a washing treatment to remove the said carbon particles based backing layer. The method comprises the step of passing the wash-water through an microfiltration unit equipped with a microfiltration membrane made from a polytetrafluorethylene-based membrane. The method enables the regeneration of the wash-water and its recycling with a high efficiency and considerable lowering of the water consumption used in this step of the processing.