Bleaching composition
AssigneeInterox Chemicals Limited
InventorsJoseph E. McCrudden, Alan Smith
Life of this patent
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Abstract
The present invention provides aromatic peroxyacids containing at least two peroxyacid groups and a total of at least three peroxyacid or carboxy acid groups, which can be incorporated in detergent or bleaching compositions. The aromatic peroxyacids can be desensitized by intimate contact with a diluent e.g. magnesium sulphate or lauric acid, and coated to reduce destructive interaction with other components of the detergent or bleaching composition. Preferred aromatic peroxyacids include triperoxy trimellitic acid, triperoxy trimesic acid and tetraperoxy pyomellitic acid. The aromatic peroxyacids are especialy suitable for washing white fabrics or cleaning hard surfaces, particularly at a temperature of from 30.degree. to 60.degree. C.
Claims14
A bleaching agent comprising a compound having the general formula:
- ##STR4## wherein p.gtoreq.3, or an anion thereof, the benzene nucleus being optionally substituted by a lower alkyl, chloro or nitro group, said compound being coated with from 3% to 35% by weight of a coating agent.
A bleaching agent comprising a compound having the general formula:
- ##STR5## wherein p.gtoreq.3, or an anion thereof, the benzene nucleus being optionally substituted by a lower alkyl, chloro or nitro group, said compound being in intimate contact with a desensitizing amount of a desensitizing diluent.
A bleaching or detergent composition comprising a surfactant, a builder salt and a bleaching agent, said bleaching agent comprising a compound having the general formula:
- ##STR6## wherein p.gtoreq.3 or an anion thereof.
A bleaching or detergent composition comprising a surfactant, a builder salt, and a bleaching agent, said bleaching agent comprising a compound having the general formula:
- ##STR7## wherein p.gtoreq.3, or an anion thereof, the benzene nucleus being optionally substituted by a lower alkyl, chloro or nitro group.
A process of bleaching comprising contacting a material to be bleached with an aqueous solution comprising a peroxyacid having the general formula:
- ##STR8## wherein p.gtoreq.3, or an anion thereof, the benzene nucleus being optionally substituted by a lower alkyl, chloro or nitro group.
Dependencies are inferred from the claim text.