Special receptacle or package – With specified material for container or content – For content inhibitor or stabilizer
Patent
1977-08-24
1979-06-26
Rose, Shep K.
Special receptacle or package
With specified material for container or content
For content inhibitor or stabilizer
424 52, A61K 718, B65D 8124, B65D 8126, B65D 8514
Patent
active
041592808
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.
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Degussa Technical Bulletin Pigments No. 9 "Synthetic Products for Toothpastes" 12 pp. (1970).
Degussa Technical Bulletin No. 49 "Aerosil.RTM. in Pharmaceuticals and Cosmetics" reprint from Drugs made in Germany, vol. 13, pp. 47-58, 108-117 (1970), p. 3, part 3.7 Preventing Corrosion-Toothpaste Tubes.
Flanders Harold H.
J. M. Huber Corporation
Price Robert L.
Rose Shep K.
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