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US 2004/0016370 A1Published application
Functional fluorescent dyes
Assignee3M Innovative Properties Company
InventorDavid B. Olson
Life of this patent
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Abstract
Fluorescent functional dyes represented by the following formulas: 1 wherein R1 is hydrogen or methyl; R2, R3, R4, R5, and R6 are each independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, aralkyl, alkaryl, halo, and trifluoromethyl; and L is a straight chain or branched chain alkylene containing 3 to about 15 carbon atoms, the alkylene group optionally containing one or more catenary heteroatoms.
Claims16
A compound represented by the following general formula:
- 23
- wherein R1 is hydrogen or methyl;
- R2, R3, and R4 are each independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, aralkyl, alkaryl, halo, and trifluoromethyl;
- and L is a divalent alkylene containing 3 to about 15 carbon atoms, the alkylene group optionally containing one or more catenary heteroatoms.
1 more element
A compound represented by the following formula:
- 25
- wherein R1 is hydrogen or methyl;
- R5 and R6 are each independently selected from the group consisting of hydrogen, alkyl, aryl, alkoxy, aralkyl, alkaryl, halo, and trifluoromethyl;
- and L is a divalent alkylene containing 1 to about 15 carbon atoms, the alkylene group optionally containing one or more catenary heteroatoms.
1 more element
Dependencies are inferred from the claim text.