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US 6,949,677 B2Granted
Acetoacetylated N-phenyl-p-phenylenediamines
AssigneeLonza Ltd.
InventorsUta Glufke, Paul Hanselmann
Life of this patent
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Abstract
Compounds of the general Formula: in which R1 and R2 are at each occurrence independently hydroxyl, C1-6-alkyl, C1-6-alkoxy, halogen, phenyl or phenoxy; R2 is hydroxyl, C1-6-alkyl, C1-6-alkoxy, halogen, phenyl or phenoxy; R3 is C1-6-alkyl; m is an integer from 0 to 4; and n is an integer from 0 to 5.
Claims5
A compound of the formula:
- in which
- R1 and R2 are at each occurrence independently hydroxy, C1-6-alkyl, C1-6-alkoxy, halogen, phenyl or phenoxy;
- R3 is C1-6-alkyl;
- m is an integer from 0 to 4;
- and
- n is an integer from 0 to 5.
3 more elements
Dependencies are inferred from the claim text.