Powderous formulations of organic acid amides having an aromatic ring system

Abstract

The present invention relates to improved powderous formulations comprising organic acid amides having an aromatic ring system as well as to the production of such formulations.

Claims

1. A powderous formulation comprising: (i) 70-90 wt-%, based on the total weight of the powderous formulation, of at least one compound of formula (I): ##STR00007## wherein X is N; and each of R.sup.1 and R.sup.2 is H, CH.sub.3, CH.sub.2CH.sub.3, (CH.sub.2).sub.2CH.sub.3 or (CH.sub.2).sub.3CH.sub.3; and (ii) 10-30 wt-%) based on the total weight of the powderous formulation, of at least one auxiliary compound selected from the group consisting of ammonium dihydrogen phosphate, purified diatomaceous earth, potassium hydrogen carbonate, potassium sulphate, potassium carbonate, sodium chloride and sodium hydrogen carbonate, wherein the powderous formulation has a minimum ignition energy (MIE) value of 10 mJ or greater.

2. The powderous formulation according to claim 1, wherein each of R.sup.1 and R.sup.2 is H or CH.sub.3.

3. The powderous formulation according to claim 1, wherein the compound of formula (I) is a compound of formula (Ia): ##STR00008##

4. The powderous formulation according to claim 1, wherein the compound of formula (I) is a compound of formula (Ia): ##STR00009##

5. The powderous formulation according to claim 1, wherein the auxiliary compound has an average particle size (d 0.5) of 10 m-100 m.

6. The powderous formulation according to claim 1, having MIE values of 10-100 mJ as determined by EN 13821:2002.

7. The powderous formulation according to claim 1, wherein the formulation further comprises 0-5 wt-%, based on the total weight of the formulation, of water is present.

8. The powderous formulation according to claim 1, which further comprise a carrier material selected from the group consisting of synthetically produced precipitated silicas, synthetically produced precipitated formates, proteins, starches, lignosulfonates and gums.

9. The powderous formulation according to claim 1, consisting of: (i) 70-90 wt-%, based on the total weight of the powderous formulation, of a compound according to formula (Ia): ##STR00010## (ii) 10-30 wt-%, based on the total weight of the powderous formulation, of the at least one auxiliary compound, and (iii) 0-5 wt-%, based on the total weight of the powderous formulation, of water.

10. The powderous formulation according to claim 6, having a MIE of 30-100 mJ.

11. Food products, feed products and personal care products comprising the powderous formulation according to claim 1.

Description

EXAMPLES

Example 1

(1) 850 g nicotinamide (Rovimix Nicotinamide from DSM) (purity 99.5%) was filled into an appropriate blender (Turbula) and 150 g sodium chloride having a particle size, analysed by laser diffraction, of 54 m was added, the mix then blended for 10 minutes. The material was then transferred to a Retsch Grindomixer and milled (10000 rpm/1 min.). The median size of this material was 31 m. The obtained white powder was filled into a container.

(2) The powder was analysed according to the above mentioned EN 13821:2002 and the minimum ignition energy was found to be 10-30 mJ.

Example 2

(3) 750 g nicotinamide (Rovimix Nicotinamide from DSM) (purity 99.5%) was filled into an appropriate blender (Turbula) and 250 g sodium chloride having a particle size, analysed by laser diffraction, of 54 m was added, the mix then blended for 10 minutes. The material was then transferred to a Retsch Grindomixer and milled (10000 rpm/1 min.). The median size of this material was 30 m. The obtained white powder was filled into a container.

(4) The powder was analysed according to the above mentioned EN 13821:2002 and the minimum ignition energy was found to be 30-100 mJ.