Abstract: The invention relates to new compounds of formula (I), (II), (III) or (IV) and their use in the recording layer of an optical recording medium comprising a substrate, a recording layer and optionally one or more reflecting layers.

Abstract: A coloured porous material comprising in its pores an effectively colouring amount of an organic pigment which is obtainable by fragmenting a meltable or solvent-soluble pigment precursor, and a process for its preparation. The instant coloured porous material powders are used as pigments for high molecular weight organic materials.

Abstract: The present invention relates to a colored porous material comprising in its pores an effectively coloring amount of an organic pigment which is obtainable by fragmenting a meltable or solvent-soluble pigment precursor, and to a process for its preparation.

Abstract: The present invention relates to a coloured porous material comprising in its pores an effectively colouring amount of an organic pigment which is obtainable by fragmenting a meltable or solvent-soluble pigment precursor, and to a process for its preparation. The present invention also relates to the use of the instant coloured porous material powders as pigments for high molecular weight organic materials.

Abstract: Novel compositions for making structured color images and application thereof Compositions for making structured color images comprising (a) a soluble pigment precursor which can be transformed to an insoluble pigment by means of chemical, thermal, photolytic or radiation-induced method, and (b) a binder polymer or prepolymer, or a positive or negative resist-type resin which can be structured by crosslinking, polymerization or depolymerization by applying heat or electromagnetic irradiation. The compositions can be applied to optical and thermal recording, printing, and the production of color filters for Liquid Crystal Displays, with high accuracy, high transparency and high stability.

Abstract: Compositions for making structured color images comprising(a) a soluble pigment precursor which can be transformed to an insoluble pigment by means of chemical, thermal, photolytic or radiation-induced method, and(b) a binder polymer or prepolymer, or a positive or negative resist-type resin which can be structured by crosslinking, polymerization or depolymerization by applying heat or electromagnetic irradiation.The compositions can be applied to optical and thermal recording, printing, and the production of color filters for Liquid Crystal Displays, with high accuracy, high transparency and high stability.

Abstract: Compounds of the formula ##STR1## in which R is hydrogen or hydroxyl, R.sub.1 is alkyl, alkoxy, amino or aryl, and R.sub.2 is hydrocarbylcarbonyl or hydrocarbylsulfonyl, are highly suitable for stabilizing magenta couplers in photographic materials.

Abstract: Compounds of the formula ##STR1## in which R is hydrogen or hydroxyl, R.sub.1 is alkyl, alkoxy, amino or aryl, and R.sub.2 is hydrocarbylcarbonyl or hydrocarbylsulfonyl, are highly suitable for stabilizing magenta couplers in photographic materials.

Abstract: Lubricant compositions or hydraulic fluid compositions containing(a) at least one lubricant or one hydraulic fluid and(b) at least one compound of the formula ##STR1## in which R.sup.1 and R.sup.2 are identical or different and are each an alkyl group having 1 to 30 C atoms, an unsubstituted or C.sub.1 -C.sub.8 alkyl-substituted cycloalkyl group having 5 to 12 C atoms or an unsubstituted or C.sub.1 -C.sub.12 -alkyl-substituted C.sub.6 -C.sub.10 aryl group, or R.sup.1 and R.sup.2 together are an unsubstituted or C.sub.1 -C.sub.12 alkyl-substituted alkylene group haivng 2 to 20 C atoms or an arylene group having 6 to 20 C atoms, and R.sup.5 and R.sup.6 are identical or different and are each an alkyl group having 1 to 30 C atoms, or R.sup.5 and R.sup.6 together are an unsubstituted or C.sub.1 -C.sub.12 alkyl-substituted alkylene group having 2 to 20 C atoms or an alkylene group which has 2 to 10 C atoms and is interrupted by --O--, --S-- or --NR.sup.9 --, in which R.sup.9 is H or C.sub.1 -C.sub.

Abstract: A composition containing a lubricant or a hydraulic fluid and at least one compound of the formula I ##STR1## in which both R.sup.1, independently of one another, are a hydrogen atom, a metal cation, NH.sub.4.sup..sym., primary, secondary, tertiary or quaternary ammonium, linear or branched C.sub.1 -C.sub.24 -alkyl, unsubstituted or C.sub.1 -C.sub.18 -alkyl-substituted cycloalkyl or cycloalkylalkyl having 3 to 7 ring C atoms, C.sub.7 -C.sub.16 -aralkyl or C.sub.8 -C.sub.40 -alkaralkyl, where C.sub.1 -C.sub.24 alkyl may be substituted by --NR.sup.4 R.sup.5, --N.sup..sym. R.sup.4 R.sup.5 R.sup.6, --OR.sup.7, --SR.sup.7, --(C.sub.m H.sub.2m O).sub.n R.sup.8, --C(O)OR.sup.9 or C.sub.1 -C.sub.20 -acyloxy, in which R.sup.4, R.sup.5 and R.sup.6, independently of one another, are a hydrogen atom or unsubstituted or --OH-substituted C.sub.1 -C.sub.20 -alkyl, or R.sup.4 and R.sup.5 together are tetramethylene, pentamethylene or 3-oxapentylene, R.sup.7 is a hydrogen atom, linear or branched C.sub.1 -C.sub.

Abstract: The invention relates to lubricant compositions containing(a) a mineral and/or synthetic base oil,(b) a compound of the formula IA--(S).sub.n --G (I)wherein n is preferably 2 and A and G are the same or different and represent either a radical ##STR1## wherein R.sup.1 and R.sup.2 may be methyl, or are a nitrogen-containing 5- to 7-membered heterocyclic radical such as ##STR2## and (c) optionally further additives.