C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
167/316
C11D 3/00 (2006.01) C11D 3/37 (2006.01) C11D 3/39 (2006.01) C11D 3/48 (2006.01) C11D 17/00 (2006.01)
Patent
CA 1175751
ABSTRACT OF THE DISCLOSURE A method is disclosed for the preparation of granulated per- borate salts having improved utility in compressible compo- sitions such as those formed into denture cleanser tablets. The method broadly comprises forming a mixture of one or more perborate salts such as sodium perborate monohydrate and anhydrous sodium perborate, with a polymeric fluorocarbon such as polytetrafluoroethylene, with the polytetrafluoro- ethylene present in an amount ranging from about 0.01% to about 0.70% by weight of the perborate salt. The particles thus prepared exhibit combination of improved hardness and specific weight that facilitates their participation in the compressible cleanser composition, together with enhanced disintegration characteristics that are favorably imparted to the cleanser tablets. The present invention also includes the granular salts prepared by the methods which have a broad range of utility in deter- gents, cleansers and the like.
410395
Macrae & Co.
Warner-Lambert Company
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