Bleaching and dyeing; fluid treatment and chemical modification – Dye or potential dye composition – additive – treatment,... – Mixed dyes – noncomplexed
Reexamination Certificate
2007-01-09
2007-01-09
Douyon, Lorna M. (Department: 1751)
Bleaching and dyeing; fluid treatment and chemical modification
Dye or potential dye composition, additive, treatment,...
Mixed dyes, noncomplexed
C008S641000, C008S664000
Reexamination Certificate
active
11200109
ABSTRACT:
The present invention relates to an aqueous liquid formulation comprising 5–25% by weightof a dye composition comprising20–100% by weightof Direct Yellow 11 or of a dyeobtainable by reduction orthermal treatment of DirectYellow 11 0–30% by weightof a blue direct dye, 0–30% by weightof a red direct dye, and 0–60% by weightof a brown direct dyeall based on the dye composition, and 1–25% by weightof poly-N-vinylformamide and/or of a polymerobtained by polymerization of a mixture of one ormore ethylenically unsaturated monomers and >50%by weight of N-vinylformamide based on totalmonomers,based on the total weight of the aqueous liquid formulation.
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Derwent abstract of DE 3046450, Aug. 1981.
Klopp Ingo
Nordmann Gero
Reichelt Helmut
Schroeder Gunter-Rudolf
Douyon Lorna M.
Khan Amina
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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