Optical brighteners compositions their production and their use

Details Optical brighteners compositions their production and their use Optical brighteners compositions their production and their use

2005-05-10

2005-05-10

Koslow, C. Melissa (Department: 1755)

Compositions

Organic luminescent material containing compositions

Optical brightening compositions

C252S301220, C252S301260, C252S301230, C008S119000, C008S189000, C008S648000, C544S193200, C544S083000, C427S158000, C162S135000, C162S158000, C162S162000, C162S169000, C162S168100

Reexamination Certificate

active

06890454

ABSTRACT:
The invention relates to an optical brightener mixture (W) comprising optical brighteners (A) of formula (Ia), and (B) of formula (Ib) and optionally (C) of formula (Ic) as defined herein, their concentrated aqueous solutions (S), their production and their use.

REFERENCES:
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patent: 4717502 (1988-01-01), Schmid
patent: 5493022 (1996-02-01), Kaul et al.
patent: 5518657 (1996-05-01), Fringeli et al.
patent: 5873913 (1999-02-01), Cowman et al.
patent: 6025490 (2000-02-01), Feldhues et al.
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patent: 20030010459 (2003-01-01), Farrar et al.
patent: 20030013628 (2003-01-01), Farrar et al.
patent: WO 0046336 (2000-08-01), None
Findley, William R., “Fluorescent Whitening Agents for Modern Detergents,” J. of the American Oil Chemists Society, V. 65, pp. 679-683 (1988).

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