Abstract: A process for preparing quaterrylene-3,4:13,14-tetracarboximides of the general formula I in which R, R? are each independently hydrogen or optionally substituted C1-C30-alkyl, C5-C8-cycloalkyl or aryl or hetaryl; which comprises reacting a perylene-3,4-dicarboximide of the general formula IIa in the presence of a base-stable, high-boiling, organic solvent and of an alkali metal base or alkaline earth metal base, with a perylene-3,4-dicarboximide of the general formula IIb in which X is hydrogen, bromine or chlorine.

Abstract: 1,6,9,14-Tetrasubstituted terrylenetetracarboxylic diimides are particularly useful for absorbing and emitting in the long-wavelength red and near infrared region of the electromagnetic spectrum.

Abstract: A process for preparing quaterrylene-3,4:13,14-tetracarboximides of the general formula I in which R, R? are each independently hydrogen or optionally substituted C1-C30-alkyl, C5-C8-cycloalky or aryl or hetaryl; which comprises reacting a perylene-3,4-dicarboximide of the general formula IIa in the presence of a base-stable, high-boiling, organic solvent and of an alkali metal base or alkaline earth metal base, with a perylene-3,4-dicarboximide of the general formula IIb in which X is hydrogen, bromine or chlorine.

Abstract: Rylene dyes of the general formula I where the variables are defined as follows: R is hydrogen; optionally substituted C1-C30-alkyl, C5-C8-cycloalkyl, aryl or hetaryl; R? is bromine; cyano; —NR32; optionally substituted aryloxy, arylthio, hetaryloxy or hetarylthio; optionally substituted C3-C18-alk-1-ynyl; X, Y are both hydrogen or together are a radical of the formula Ia n is 2, 3, 4 or additionally 1 when X and Y are a radical of the formula Ia; n? is from 1 to 4; m is from 0 to 6.

Abstract: Tert-alkylphenoxy-substituted polycyclic compounds of the general formula I where P is a conjugated polycyclic radical which is stable to bases and nucleophiles, optionally bears aryl substituents and contains no group from the group consisting of —CO—NH—CO—, —COOH and —CO—O—CO—; R is C1–C8-alkyl, whose carbon chain may be interrupted by one or more groups selected from the group consisting of —O—, —S—, —NR1—, —CO— and/or —SO2— and which may be monosubstituted or polysubstituted by C1–C6-alkoxy or by a 5- to 7-membered heterocyclic radical which is attached via a nitrogen atom and may contain further heteroatoms and be aromatic; C5–C8-cycloalkyl whose carbon chain may be interrupted by one or more groups selected from the group consisting of —O—, —S—, —NR1—, —CO— and/or —SO2— and which may be monosubstituted or polysubstituted by C1–C6-alkyl; R1 is hydrogen or C1–C6-alkyl; Hal is chlorine and/or bromine; m is from 0 to 15; n is from 1 to 16, subject to the proviso that the sum m+n is ?16, are prepared a

Abstract: Rylene derivatives of the general formula I where the variables have the following meanings: R is hydrogen or substituted or unsubstituted C1–C30-alkyl, aryl or hetaryl; R1 is hydrogen or bromine; R2 is hydrogen or C1–C6-alkyl; R3 is hydrogen, C1–C18-alkyl or substituted or unsubstituted aryl or hetaryl; and n is 2 or 3.

Abstract: Rylene dyes of the general formula I where the variables are defined as follows: R is hydrogen; optionally substituted C1-C30-alkyl, C5-C8-cycloalkyl, aryl or hetaryl; R? is bromine; cyano; —NR32; optionally substituted aryloxy, arylthio, hetaryloxy or hetarylthio; optionally substituted C3-C18-alk-1-ynyl; X, Y are both hydrogen or together are a radical of the formula Ia n is 2, 3, 4 or additionally 1 when X and Y are a radical of the formula Ia; n? is from 1 to 4; m is from 0 to 6.

Abstract: Rylene derivatives of the general formula I where the variables have the following meanings: R is hydrogen or substituted or unsubstituted C1-C30-alkyl, aryl or hetaryl; R1 is hydrogen or bromine; R2 is hydrogen or C1-C6-alkyl; R3 is hydrogen, C1-C18-alkyl or substituted or unsubstituted aryl or hetaryl; and n is 2 or 3.

Abstract: The invention relates to 1,6,9,14-tetrasubstituted terrylene tetracarboxylic acid diimides of general formula (I), in which the variables are defined as follows: X, Y independently of one another represent bromium; cyano; aryloxy, arylthio, hetaryloxy or hetarylthio, which can respectively be mono- or polysubstituted by C1-C12 alkyl, C1-C12 alkoxy, —COOR1, —SO3R1, halogen, hydroxy, carboxy, cyano, —CONHR2 and/or —NHCOR2; a group of formula -L-R3; a group of formula —NR22; R, R? independently of one another represent hydrogen; C1-C30 alkyl, whose carbon chain can be interrupted by one or more groupings —O—, —S—, —NR1—, —CO— and/or —SO2— and which can be mono- or polysubstituted by cyano, C1-C6 alkoxy, aryl, which may be substituted by C1-C18 alkyl or C1-C6 alkoxy and/or a 5- to 7-membered heterocyclic group that is bonded by means of a nitrogen atom and that can contain additional heteroatoms and be aromatic; C5-C8 cycloalkyl, whose carbon skeleton can be interrupted by one or more groupings —O—, —S— and/or —N

Abstract: A device for the metered delivery of a viscous liquid has a pump body with a drill hole accommodating two pistons which connects a first chamber serving as an intake chamber and a second chamber serving as a discharge chamber. Two swivel arms driven by two cam discs are foreseen as the drive mechanism for the back and forth movement of the two pistons. For the metered delivery of an adhesive which contains flakes of silver the drill hole is designed such that it serves for guiding the pistons as well as for sealing the pump path.

Abstract: Rylene dyes of the general formula I where R is hydrogen; unsubstituted or substituted C1-C30-alkyl, aryl or hetaryl; R? is unsubstituted or substituted C2-C30-alkyl or C5-C8-cycloalkyl, or substituted methyl; n is 0 or 1, their preparation and use for coloring high-molecular-weight organic and inorganic materials, and aminorylene-3,4-dicarboximide of the formula IV as their intermediates.

Abstract: Rylene derivatives of the general formula I where the variables have the following meanings: R is hydrogen or substituted or unsubstituted C1-C30-alkyl, aryl or hetaryl; R1 is hydrogen or bromine; R2 is hydrogen or C1-C6-alkyl; R3 is hydrogen, C1-C18-alkyl or substituted or unsubstituted aryl or hetaryl; and n is 2 or 3.

Abstract: A device for the metered delivery of a viscous liquid has a pump body with a drill hole accommodating two pistons which connects a first chamber serving as an intake chamber and a second chamber serving as a discharge chamber. Two swivel arms driven by two cam discs are foreseen as the drive mechanism for the back and forth movement of the two pistons. For the metered delivery of an adhesive which contains flakes of silver the drill hole is designed such that it serves for guiding the pistons as well as for sealing the pump path.

Abstract: Rylene dyes of the general formula I 1

Abstract: The invention relates to rylene derivatives of the general formula (I), in which: R represents hydrogen or optionally substituted C1-C30 alkyl, aryl or heteroaryl; R1 represents hydrogen or bromine; R2 represents hydrogen or C1-C6 alkyl; R3 represents hydrogen, C1-C18 alkyl or optionally substituted aryl or heteroaryl; and n represents 2 or 3.

Abstract: A device for the metered delivery of a viscous liquid has a pump body with a drill hole accommodating two pistons which connects a first chamber serving as an intake chamber and a second chamber serving as a discharge chamber. Two swivel arms driven by two cam discs are foreseen as the drive mechanism for the back and forth movement of the two pistons. For the metered delivery of an adhesive which contains flakes of silver the drill hole is designed such that it serves for guiding the pistons as well as for sealing the pump path.

Abstract: tert-Alkylphenoxy-substituted polycyclic compounds of the general formula I 1

Abstract: A device for the metered delivery of a viscous liquid has a pump body with a drill hole accommodating two pistons which connects a first chamber serving as an intake chamber and a second chamber serving as a discharge chamber. Two swivel arms driven by two cam discs are foreseen as the drive mechanism for the back and forth movement of the two pistons.

Abstract: A method of aligning the bonding head of a bonder, in particular a die bonder, or of a pick and place machine comprising the steps of a) placing an alignment plate provided with two plane parallel surfaces on a supporting surface which is set plane parallel to the bonding surface upon which the semiconductor chip will be bonded to the carrier material; b) calibration of a measuring device, the signal of which is dependent upon the position of the alignment plate; c) grasping the alignment plate with the bonding head of the bonder and holding the alignment plate free at a slight distance above the measuring device; and d) alignment of the bonding head until the signal from the measuring device is equal to the signal following step b).