IP Library Granted Patent US 6,929,666
Granted Patent B2
US 6,929,666 · App. 10/791,114 · Granted Aug 16, 2005

Composition comprising a dye

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Quick Facts
Patent No.
US 6,929,666
App. No.
10/791,114
Granted
Aug 16, 2005
Kind
B2
Abstract

A composition of matter (e.g., a molded article) is described. More particularly, the composition of matter includes: (a) a resinous component selected from at least one member of the group consisting of (co)polyester, (co)polycarbonates, acrylontrile-butadiene-styrene, polyamide, polyurethane, polyalkyl(meth)acrylate and styrene copolymers; (b) at least one dye; (c) a carrier represented by the following formula, R 1 [—O—(CH 2 ) n ] m OR 2 wherein R 2 is butyl, R 1 is H, n is 2 or 3, and m is 2-35; and (d) optionally emulsifier. Also described is a dye bath that includes: (a) water; (b) at least one dye; (c) a carrier represented by the above formula; and (d) optionally an emulsifier.

Claims (12)

1. A dye composition consisting of:

(a) 94 to 96 percent by weight of water,

(b) a tinctorial amount of at least one dye,

(c) 1 to 2 percent by weight of a carrier represented by the following formula,

R 1 —[—O—(CH 2 ) n —] m —OR 2

wherein R 2 and R 1 are each independently selected from H, C 1-18 alkyl, benzyl, benzoyl or phenyl radical, n is 2 or 3, and m is 2-35; and

(d) 3 to 4 percent by weight of a emulsifier selected from at least one of: ionic emulsifiers; amphoteric emulsifiers; and non-ionic emulsifiers selected from at least one of C 14 -C 18 ethoxylated unsaturated fatty acids, octylphenoxypolyethyleneoxyethanol and poly(oxy-1,2-ethanediyl), alpha-phenyl-omega-hydroxy, styrenated, the percents by weight being based on the weight of said dye composition,

wherein said dye composition is prepared by,

(i) mixing said dye with said carrier and said emulsifier to form a dye-carrier mixture, and

(ii) adding water to said dye-carrier mixture to form said dye composition.

2. The dye composition of claim 1 wherein said dye is a disperse dye.

3. The dye composition of claim 1 wherein said dye is a water-insoluble dye selected from the group consisting of azo, diphenylamine and anthraquinone compounds.

Assignments (2)
CHANGE OF NAME Recorded Oct 16, 2015
From: BAYER MATERIALSCIENCE LLC
To: COVESTRO LLC
Reel/Frame 036876/0585 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 14, 2004
From: BAYER POLYMERS LLC
To: BAYER MATERIALSCIENCE LLC
Reel/Frame 016411/0377 →