US 5,246,620 AGranted

Stable peroxycarboxylic acid granules

AssigneeHoechst Aktiengesellschaft

InventorsHanspeter Gethoffer, Gerd Reinhardt, Gerhard Noltner, Christoph Porz

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Abstract

Stable peroxycarboxylic acid granules, consisting essentially of (1) an imidoperoxycarboxylic acid or a salt thereof of the formula ##STR1## wherein A is a group of the formulae ##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.1 -C.sub.20 -alkenyl, aryl or alkylaryl, R.sup.2 is hydrogen, chlorine, bromine or a group of the formula --SO.sub.3 M, --CO.sub.2 M or --OSO.sub.3 M, M is hydrogen, an alkali metal or ammonium ion or one equivalent of an alkaline earth metal ion and X is C.sub.1 -C.sub.19 -alkylene or arylene, and (2) an inorganic sulfate and/or phosphate salt and/or a nonoxidizable surfactant as granulation auxiliary and a copolymer based on alkenylaminomethylenephosphonic acids as a film-forming coating substance.

Stable peroxycarboxylic acid granules, consisting essentially of (1) an imidoperoxycarboxylic acid or a salt thereof of the formula ##STR11## wherein A is selected from the group consisting of the formula ##STR12## n is selected from the group consisting of 0, 1 and 2, R.sup.1 is selected from the group consisting of hydrogen, chlorine, bromine, C.sub.1 -C.sub.20 -alkyl, C.sub.1 -C.sub.20 -alkenyl, aryl, and alkylaryl,

R.sup.2 is selected from the group consisting of hydrogen, chlorine, bromine, --SO.sub.3 M, --CO.sub.2 M and -OSO.sub.3 M,
M is selected from the group consisting of hydrogen, alkali metal, ammonium ion and one equivalent of an alkaline earth metal ion an
X is selected from the group consisting of C.sub.1 -C.sub.19 -alkylene and arylene,
(2) a granulation auxiliary selected from the group consisting of an inorganic sulfate, a phosphate salt, a non-oxidizable surfactant and mixtures thereof and
(3) a copolymer as a film-forming coating substance consisting of 0.1-99.9% by weight, of one or more monomers of the formula ##STR13## wherein R.sub.1 is selected from the group consisting of hydrogen, C.sub.4 -C.sub.10 -alkyl, phenyl, naphthyl, methylphenyl, hydroxyphenyl, methoxyphenyl, methylnaphthyl, hydroxynaphthyl and methoxynaphthyl,
R.sub.2 is hydrogen or a group of the formula --Ch.sub.2 PO.sub.3 M.sub.2,
R.sub.3, R.sub.4 and R.sub.6 are hydrogen or methyl
R.sub.5 is hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl, and
M is hydrogen or a cation, and
99. 9-0.1% by weight of one or more monomers of the formula
R'.sub.1 R'.sub.2 C=CR'.sub.3 X (II)
wherein R.sub.1 ' is hydrogen or a group of the formula --COOM,
R.sub.2 ' is selected from the group consisting of hydrogen, phenyl, and --COOM,
R.sub.3 ' is selected from the group consisting of hydrogen, methyl, --COOM and --CH.sub.2 COOM,
X is a group of the formula --COOM or
R.sub.2 ' and R.sub.3 ' together form a C.sub.4 -alkylene radical or
R.sub.1 ' and X together form a group of the formula ##STR14## or R.sub.3 ' and X together form a group of the formula ##STR15## .

14 more elements

Abstract

Claims14