Patent GB-1104891-A (GB)
Title: Activator for peroxygen compounds
IPC: C11D3/39
Filed: 1965-11-23
Abstract: A composition suitable for bleaching fats and oils, or in admixture with an anionic or nonionic surfactant as a detergent composition for use in the cleaning of textiles comprises a peroxygen compound, e.g. hydrogen peroxide, an alkali metal perborate, percarbonate, persilicate, perphosphate or perpyrophosphate or sodium, zinc, calcium, magnesium or urea peroxide, and an activator having the formula <FORM:1104891/C4-C5/1> in which at least one of R1, R2 and R3 are acyl groups having the formula <FORM:1104891/C4-C5/2> in which R is hydrogen, an aromatic group or an aliphatic group having 1-6 carbon atoms, and any remaining R1, R2 and R3 groups are hydrogen, the activator being soluble in an aqueous solution of the composition in amounts of at least 100 p.p.m.  The groups R of the activator may be substituted by chlorine, bromine, phenyl, nitro or carboxy groups. Specified activators are the mono-, di- and tri-acetyl derivatives, mono-and di-benzoyl derivatives, mono- and di-cyclohexyl derivatives and mono- and di-propyl derivatives of 2,4 2,4,6-trihydroxy-1,3,5-triazine. The composition may also contain sodium tripolyphosphate, sodium carboxymethyl cellulose, and sodium silicate. In making up solid compositions the activator may be kept out of contact with the solid peroxygen compound by coating it with a water-soluble coating prior to mixing or the solid peroxygen compound may be packaged separately from the activator. ALSO:A composition suitable for bleaching textiles, e.g. cotton, and wood pulp comprises a peroxygen compound, e.g. hydrogen peroxide, an alkali metal perborate, percarbonate, persilicate, perphosphate or perpyrophosphate or sodium, zinc, calcium, magnesium or urea peroxide, and an activator having the formula: <FORM:1104891/D1-D2/1> in which at least one of R1, R2 and R3 are acyl groups having the formula <FORM:1104891/D1-D2/2> in which R is hydrogen, an aromatic group or an aliphatic group having 1 - 6 carbon atoms and any remaining R1, R2 and R3 groups are hydrogen, the activator being soluble in an aqueous solution of the composition in amounts of at least 100 ppm.  The groups R of the activator may be substituted by chlorine, bromine, phenyl, nitro or carboxy groups. Specified activators are the mono-, di- and tri-acetyl derivatives, mono- and dibenzoyl derivatives, mono- and di-cyclohexyl derivatives and mono- and dipropyl derivatives of 2, 4, 6- trihydroxy- 1, 3, 5-triazine.  The composition may also contain sodium tripolyphosphate, sodium carboxymethyl cellulose, anionic or nonionic surfactants and sodium silicate.  In making up solid compositions the activator may be kept out of contact with the solid peroxygen compound by coating it with a water soluble coating prior to mixing or the solid peroxygen compound may be packaged separately from the activator.ALSO:A disinfecting and sanitizing composition comprises a peroxygen compound, e.g. hydrogen peroxide, an alkali metal perborate, percarbonate, persilicate, perphosphate or perpyrophosphate or sodium, zinc, calcium, magnesium or urea peroxide, and an activator having the formula <FORM:1104891/A5-A6/1> in which at least one of R1, R2 and R3 are acyl groups having the formula <FORM:1104891/A5-A6/2> in which R is hydrogen, an aromatic group or an aliphatic group having 1-6 carbon atoms, and any remaining R1, R2 and R3 groups are hydrogen, the activator being soluble in an aqueous solution of the composition in amounts of at least 100 ppm.  The groups R of the activator may be substituted by chlorine, bromine, phenyl, nitro or carboxy groups.  Specified activators are the mono-, di- and tri-acetyl derivatives, mono- and dibenzoyl derivatives, mono- and dicyclohexyl derivatives and mono- and dipropyl derivatives of 2, 4, 6-trihydroxy-1, 3, 5-triazine.  The composition may also contain sodium tripolyphosphate, sodium carboxymethyl cellulose, anionic or nonionic surfactants and sodium silicate.  In making up solid compositions the activator may be kept out of contact with the solid peroxygen compound by coating it with a water soluble coating prior to mixing or the solid peroxygen compound may be packaged separately from the activator.