Kathleen G Thomas

US Patent:

51087340, Apr 28, 1992

Filed:

Jul 1, 1991

Appl. No.:

7/724247

Inventors:

Daniel Colodney - Hampton NJ
Kathleen P. Thomas - Somerset NJ

Assignee:

Colgate-Palmolive Company - Piscataway NJ

International Classification:

A61K 716

US Classification:

424 49

Abstract:

A dentrifrice cream composition and the process for its preparation is disclosed. The dentrifrice has an RDA value less than 150 which provides a crunchy prophy mouthfeel to the user during toothbrushing. The dentifrice comprises a vehicle having dispersed therein a siliceous polishing agent having a particle size distribution of about 1 to about 100 microns wherein (1) more than 25% of the particles have a size greater than about 40 microns and (2) at least about 10% of the particles of (1) have a particle size greater than about 60 microns and at least about 5% of the particles have a particle size greater than about 80 microns. In the preparation of the dentifrice, the dispersion of the silica particles in the dentifrice is accomplished under low shear conditions.