Hoechst Aktiengesellschaft

Frank Jaekel

Gerd Reinhardt

Gerhard Noltner

Wolf-Dieter Muller

Peter Naumann

Hanspeter Gethoffer

Walter Rupp

Manfred Muller

Eric Jacquinot

Wolf-Dieter Meller

Wolf-Dieter M Uller

The present invention relates to a process for the preparation of low-dust granules, which comprises applying an aqueous solution or suspension of a hydrate-forming compound to a particulate starting material, the particulate starting material being at a temperature below the transition temperature of the hydrate-forming compound during the application of the aqueous solution or suspension and the aqueous solution being at a temperature above the transition temperature, effecting granulation subsequently or simultaneously and, if desired, drying the granules obtained.

Process for the preparation of low-dust granules

This invention is directed to a process for preparing a compound containing a persalt activators and salts thereof which are derived from imidocarboxylic acids and sulfimidocarboxylic acids of the formula I: ##STR1## in which A is a group of the formula ##STR2## n is the number 0, 1 or 2, R.sup.1 is hydrogen, chlorine, bromine, C.sub.1 -C.sub.20 -alkyl, C.sub.2 -C.sub.20 -alkenyl, aryl, or alkylaryl,

Imidocarboxylic acid activators and sulfimidocarboxylic acid activators

This invention is directed to a process for bleaching textile objects and bleaching agent containing a persalt activators and salts thereof which are derived from imidocarboxylic acids and sulfimidocarboxylic acids of the formula I: ##STR1## in which A is a group of the formula ##STR2## n is the number 0, 1 or 2, R.sup.1 is hydrogen, chlorine, bromine, C.sub.1 -C.sub.20 -alkyl, C.sub.2 -C.sub.20 -alkenyl, aryl, or alkylaryl, R.sup.2 is hydrogen, chlorine, bromine, --SO.sub.3 M, --CO.sub.2 M or --OSO.sub.3 M, X is C.sub.1 -C.sub.9 -alkylene or arylene, B is a group of the formula C.dbd.O or SO.sub.2, L is a leaving group.

Imidocarboxylic acid activators and sulfimidocarboxylic acid activators,

Process for the preparation of purified phthalimidoalkanecarboxylic acids The present invention relates to a process for the preparation of purified phthalimidoalkanecarboxylic acids which are contaminated with phthalic acid, lactam and/or water, including the following measures:

Process for the preparation of purified phthalimidoalkanecarboxylic acids

A persalt activator or salt thereof which is derived from an imidocarboyxlic acid or sulimidocarboxylic acid of the formula I: ##STR1## in which A is a group of the formula ##STR2## n is the number 0, 1 or 2, R.sup.1 is hydrogen, chlorine, bromine, C.sub.1 -C.sub.20 -alkyl, C.sub.2 -C.sub.20 -alkenyl, aryl, or alkylaryl,

The present invention relates to stable granules comprising active substance, granulating auxiliary, enveloping substance and if appropriate additional components, wherein the enveloping substance in each case comprises

Stable granules for detergents, cleaning agents and disinfectants

A process for the preparation of ureidoperoxycarboxylic acids of the formula ##STR1## in which x is the number 1 or 2,

Process for the preparation of ureidoperoxycarboxylic acids

Sulfimidoperoxycarboxylic acids of the formula ##STR1## in which A is a group of the formula ##STR2## n is the number 0, 1 or 2, R.sup.1 is hydrogen, fluorine, chlorine, bromine, C.sub.1 -C.sub.20 - alkyl, C.sub.2 -C.sub.20 -alkenyl, aryl or C.sub.1 -C.sub.10 -alkylaryl,

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Kelkheim, Germany

Frank Jaekel