Method for production of abrasive composition for use in toothpa

Details Method for production of abrasive composition for use in toothpa Method for production of abrasive composition for use in toothpa

1980-03-28

1981-07-28

Czaja, Donald E.

Abrasive tool making process, material, or composition

With inorganic material

Clay, silica, or silicate

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

Patent

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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