Method for production of abrasive composition for use in toothpa

Abrasive tool making process – material – or composition – With inorganic material – Clay – silica – or silicate

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51309, 423335, 424 52, C09C 102, C09C 168

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active

042808227

ABSTRACT:
The corrosion and staining of unlined aluminum tube surfaces by dentifrices such as toothpastes, particularly when the dentifrices contain therapeutic agents, is substantially prevented by incorporation into the dentifrice of a controlled amount of an alkaline earth metal ion such as calcium ion, in the range of 0.005-0.2 weight percent, and preferably in the range of 0.005-0.070 weight percent of the dentifrice. The alkaline earth metal may be provided from any water soluble alkaline earth metal salt or as a reaction product of the alkaline earth metal salt with an amorphous silica abrasive and/or thickener.

REFERENCES:
patent: 2399237 (1946-04-01), Maloney
patent: 2649388 (1953-08-01), Wills et al.
patent: 2744001 (1956-05-01), Harman et al.
patent: 4062658 (1977-12-01), Byrne
patent: 4159280 (1979-06-01), Wason
patent: 4244707 (1981-01-01), Wason

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