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:
Jul. 02, 2002
Filed:
Sep. 11, 2000
Applicant:
Inventors:
Gustav Tappe, Leverkusen, DE;
Wolfgang körner, Leverkusen, DE;
Assignee:
AGFA-Gevaert, , BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C 7/413 ;
U.S. Cl.
CPC ...
G03C 7/413 ;
Abstract
A one-part colour developer concentrate which contains at least one colour developer substance, at least one antioxidant, at least one water softener, a buffer system, alkali, which concentrate contains at most 0.1 mol of sulfate ions/L, is usable for a wide range of regeneration rates and exhibits no precipitation at down to −7° C. if it is prepared as a multi-phase concentrate using organic, water-soluble solvents.