Back to results
US 6,475,472 B2Granted
Oral bleaching composition
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorsAndrew Joiner, Philip Christopher Waterfield
Life of this patent
Estimating the term…
Abstract
The present invention relates to oral care compositions with an improved teeth whitening effect. This effect is achieved by inclusion in the oral care compositions of certain organic peroxy acids as teeth whitening/bleaching agents, particularly peroxyamidophthalamides together with hydrogen peroxide.
Drawings
Claims6
An oral tooth cleaning composition comprising:
- a peracid that is acceptable for physical contact with the inside of a mammalian mouth, the peracid being present in a range from 0.01% to 5.0% w/w of the composition, characterised in that the composition comprises hydrogen peroxide in the range from 0.01 to 5.0 % w/w of the composition or peroxy source thereof, wherein said source generates hydrogen peroxide in the range from 0.01 to 5.0 % w/w of the composition, characterised in that the peracid is a peroxy amido phthalamide having the following formula:
- wherein R=hydrogen or C1-C4 alkyl;
- n=1 to 8;
- and X=C=0 or SO2, said oral composition including an active selected from the group consisting of an anti-inflammatory agent, an anti-caries agent, a vitamin, a desensitising agent which is potassium nitrate, a flavor, a sweetening agent and combinations thereof in functionally effective amounts, wherein said hydrogen peroxide or peroxy source thereof in combination with peracid provides a more effective tooth bleaching or stain removal composition as compared to PAP alone.
1 more element
Dependencies are inferred from the claim text.