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US 8,524,200 B2Granted
Tooth whitening products
AssigneeThe Procter & Gamble Company
InventorsPaul Albert Sagel, Lan Ngoc Nguyen, Randy P. Washington
Life of this patent
Estimating the term…
Abstract
A tooth whitening product is provided. The tooth whitening product has a backing layer and a tooth whitening composition. The tooth whitening composition includes first and second water soluble polymers, water, and a tooth whitening agent, wherein the first water soluble polymer is polyethelene oxide and the second water soluble polymer is polyvinyl alcohol.
Claims18
A packaged tooth whitening product, comprising:
- a backing layer;
- and
- an adhesive layer of a water hydratable tooth whitening composition comprising first and second polymers, from about 10% to about 90% water, and a tooth whitening agent, wherein said first polymer is polyethylene oxide having an average molecular weight between about 300,000 and about 900,000 and said second polymer is polyvinyl alcohol.
Dependencies are inferred from the claim text.