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US 6,784,301 B2Granted
Perylene-derivative based crystallization modifiers
AssigneeBASF SE
InventorsClaus Hackmann, Paul Günthert, 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.
Claims17
A perylene derivative of formula I
- wherein
- X and Y are oxygen;
- R3 to R10 are independently hydrogen, hydroxyl or aryl, or the radicals conjointly attached to one carbon atom may represent ═O or ═CHR11,
- R11 is hydrogen or C1-C3-alkyl,
- wherein said perylene derivative has 1 to 3 carbonyl groups per molecule.
2 more elements
Dependencies are inferred from the claim text.