Bleaching and dyeing; fluid treatment and chemical modification – Organic additive for dye composition – dye composition... – Ether
Reexamination Certificate
2006-02-07
2006-02-07
Einsmann, Margaret (Department: 1751)
Bleaching and dyeing; fluid treatment and chemical modification
Organic additive for dye composition, dye composition...
Ether
C008S506000, C008S509000, C008S510000, C008S512000, C008S513000, C008S514000, C008S515000
Reexamination Certificate
active
06994735
ABSTRACT:
A process for tinting a molded article is disclosed. The process entails applying by spraying or by flow coating a hot, dye-solution onto at least a portion of the surface of a molded article to obtain a tinted article and washing the tinted article. In addition to the dissolved dye, the dye solution that is substantially free of particulate matter contains an aqueous solution of a carrier and an optional emulsifier. The article is one molded of a thermoplastic molding composition. In an embodiment of the invention, the dye solution is prepared by filtering a hot aqueous solution through a bag filter that contains a dye to obtain a hot, dye-solution. In a further embodiment, activated carbon is used to purify the dye solution to obtain a dye-free aqueous solution.
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Handook of Detergents, Chapter 2 Surfactants:Classification, edited by Guy Broze, 1999.
Archey Rick L.
Derikart David M.
Nikolakopoulos Michael
Pyles Robert A.
Bayer Materialscience LLC
Einsmann Margaret
Gil Joseph C.
Preis Aron
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