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US 5,451,401 AGranted
Diphosphonic acid esters as tartar control agents
AssigneeThe Procter & Gamble Company
InventorsKim W. Zerby, Jeffrey C. Hayes
Life of this patent
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Abstract
Polyphosphonic acid ester compounds with flavorant, coolant and/or sweetener components, and tartar, plaque and/or calculus control compositions with improved taste comprising one or more polyphosphonic acid ester compounds are described.
Claims6
A compound of the formula ##STR5## where at least one of R1 through R4 is 1-menthol or d-menthol;
- R5 is selected from the group consisting of an alkyl containing 1 carbon and (CH.sub.2).sub.n where n is an integer from 3 to 5;
- and
- R6 is selected from the group consisting of hydrogen, lower alkyl, amino, benzyl, halogen, hydroxy, --CH2COOH, --CH2PO3H2, or CH2CH2PO3H2;
- and salts thereof.
1 more element
Dependencies are inferred from the claim text.