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US 7,105,674 B2Granted
Perylene-derivative based crystallization modifiers
AssigneeBASF SE
InventorsClaus Hackmann, Paul Guenthert, Anton Dotter, Peter Blaschka
Life of this patent
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Abstract
Perylene derivatives of the general formula I where X and Y are independently oxygen, —NR1 or —NR2; R1 and R2 are independently hydrogen, C1–C18-alkyl, C5–C7-cycloalkyl, aryl or C1–C6-alkoxy; R3 to R10 are independently hydrogen, hydroxyl or aryl, although radicals conjointly attached to one carbon atom may also be ═O or ═CHR11, R11 is hydrogen or C1–C3-alkyl, with the proviso that said perylene derivative I contains from at least one to not more than three carbonyl groups per molecule.
Claims22
A perylene derivative represented by the formula I:
- wherein
- X and Y are independently oxygen, —NR1 or —NR2, with the proviso that X or Y is oxygen and X and Y are not both oxygen;
- R1 and R2 are independently hydrogen, C1–C18-alkyl, C5–C7-cycloalkyl, aryl or C1–C6-alkoxy;
- R3 to R10 are independently hydrogen, hydroxyl or aryl, although radicals conjointly attached to one carbon atom may also represent ═O or ═CHR11;
- and
- R11 is hydrogen or C1–C3-alkyl;
- with the proviso that said perylene derivative contains 1 to 3 carbonyl groups per molecule.
4 more elements
Dependencies are inferred from the claim text.