US 12,577,505 B2 · Granules comprising protonated triazacyclic compounds and bleaching agent and cleaning agent comprising the same

Abstract

The present invention concerns a granule comprising Mn(II) oxalate, a protonated salt of a cyclic triamine, a polysaccharide absorbent and a coating agent. In another embodiment the invention concerns a granule comprising a polysaccharide absorbent, a protonated salt of a cyclic triamine and no or very small amounts of Mn. The invention also concerns methods of preparing said granules comprising Mn(II) oxalate, polysaccharide absorbent and such salts or comprising polysaccharide absorbent, such salts and no Mn compound and bleaching formulations comprising the granules and a peroxy compound or a precursor thereof. Granules comprising Mn(II) oxalate, polysaccharide absorbent and the salt or comprising polysaccharide absorbent, the salt and no Mn compound, and formulations comprising these are suitable for use in catalysing oxidation, for example as a component of a dishwasher bleaching composition. The invention further relates to methods of oxidising with the bleaching formulations described herein.

Claims19

Dependent claims

A granule that comprises:

a salt of composition [HL]+(Xi−)1/i, [H2L]2+(Xi−)2/i, H3L]3+(Xi−)3/i, [(HL-BG-LH)]2+(Xi−)2/i, [(HL-BG-LH2)]3+(Xi−)3/i, [(H2L-BG-LH2)]4+(Xi−)4/i, [(H3L-BG-LH2)]5+(Xi−)5/i, and/or [(H3L- BG-LH3)]6+(Xi−)6/i, whereby
L is a monocyclic triamine,
BG is a divalent organic bridge group,
i is 1 or 2, and
Xi− is a mono- or divalent anion,
wherein said granule comprises a coating agent,
a polysaccharide absorbent,
0.02-25 wt-% of Mn(II) oxalate, and
0.1-25 wt-% of said salt;
or wherein said granule comprises
a polysaccharide absorbent,
0.02-25 wt-% of said salt, and
no or less than 0.01 wt-% of Mn.

10 more elements

A salt of composition [H2L]2+(Yi−)2/i, [H3L]3+(Xi−)3/i, [(HL-BG-LH)]2+(Xi−)2/i, [(HL-BG-LH2)]3+(Xi−)3/i, [(H2L-BG-LH2)]4+(Xi−)4/i, [(H3L-BG-LH2)]5+(Xi−)5/i or [(H3L-BG- LH3)]6+(Xi−)6/i, whereby

L is a monocyclic triamine,
BG is a divalent organic bridge group,
i is 1 or 2,
X is a mono- or divalent anion, and Yi− is selected from Br−, I−, NO3−, ClO4−, PF6−, BF4−, OCN−, SCN−, SO42−, R′SO4−, R′COO−, R″oxalate−, oxalate2−, CF3SO3−;
and R′SO3−, whereby R′ is selected from hydrogen, C1-C8 alkyl, phenyl or methyl substituted phenyl, and whereby R″ is selected from H, Na, K and Li.

2 more elements

Dependencies are inferred from the claim text.

Granules comprising protonated triazacyclic compounds and bleaching agent and cleaning agent comprising the same

Life of this patent

Granules comprising protonated triazacyclic compounds and bleaching agent and cleaning agent comprising the same

Life of this patent

Abstract

Claims19