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US 6,986,811 B2Granted
Perylene derivatives and their application as dispersants
AssigneeBASF SE
InventorsMartin Könemann, Ulrike Hees, Valerie Pierre
Life of this patent
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Abstract
The present invention relates to substituted perylene derivatives in which the substituent has a sterically stabilizing and/or electrostatically stabilizing effect. The perylene derivatives of the invention are particularly suitable as pigment dispersants. The present invention additionally relates to pigment preparations in which the perylene derivatives of the invention are used.
Claims13
A perylene derivative of the formula (I)
- where
- A has the definition O, CH2 or NR1 with R1 being H, aryl, aralkyl, heteroaryl, cycloalkyl, C1–C22 alkyl,
- Y, each identical or different, is —CO2, —CONR2, —SO3 or —SO2NR2, R2 being H, aryl, aralkyl, heteroaryl, cycloalkyl, C1–C22 alkyl, alkylamine, in which the amine function may carry one or more further substituents and may be part of a polyamine,
- X, each identical or different, is bonded covalently to the perylene derivative and is selected from the group consisting of sterically stabilizing substituents and electrostatically stabilizing substituents, at least one X being selected from the sterically stabilizing substituents,
- Z, each identical or different, represents where present one or more further substituents, selected from the group consisting of alkyl, alkoxy, and aryloxy groups and halogens,
- n is an integral number greater than or equal to 1, and
- m is an integral number greater than or equal to 0;
- and
- wherein the sterically stabilizing substituents are selected from the group consisting of polymers based on alkylene oxides, polymers based on polyesters, polymers based on polyacrylates, polymers based on alkyl sulfides, and polymers based on alkyl compounds.
6 more elements
A perylene derivative of the formula (IV)
- in which
- m is an integral number from 1 to 100,
- n is an integral number from 1 to 20,
- R5 is C1-64-alkyl-SO2, and
- R6 is H or C1–C6 alkyl.
2 more elements
A process for preparing a perylene derivative of the formula (I)
- where
- A has the definition O, CH2 or NR1 with R1 being H, aryl, aralkyl, heteroaryl, cycloalkyl, C1–C22 alkyl,
- Y, each identical or different, is —CO2, —CONR2, —SO3 or —SO2NR2, R2 being H, aryl, aralkyl, heteroaryl, cycloalkyl, C1–C22 alkyl, alkylamine, in which the amine function may carry one or more further substituents and may be part of a polyamine,
- X, each identical or different, is a predominantly sterically stabilizing and/or electrostatically stabilizing substituent,
- Z, each identical or different, represents where present one or more further substituents, selected from the group consisting of alkyl, alkoxy, and aryloxy groups and halogens,
- n is an integral number greater than or equal to 1, and
- m is an integral number greater than or equal to 0, and
- wherein the predominantly sterically stabilizing and/or electrostatically stabilizing substituent is/are bonded covalently to the perylene derivative;
- and
- wherein a COCl- and/or SO2Cl-substituted perylene derivative of the formula (V)
- in which A is O, CH2 or NR1 with R1 being H, aryl, aralkyl, heteroaryl, cycloalkyl, C1 to C22 alkyl,
- Z, each identical or different, is where present one or more further substituents, selected from the group consisting of alkyl, alkoxy, and aryloxy groups and halogens, and
- m is an integral number greater than or equal to 0
- is reacted with alcohols, thiols and/or amines.
11 more elements
Dependencies are inferred from the claim text.