Patent ID: 6585960
Filing Date: 2003-07-01
Classification: A61K,A61Q

Abstract:
A method of preparing a dentifrice composition comprising adding a silica gel additive (a):(i) having a median particle size below about 7 microns, (ii) a pH of from about 6 to about 11, and (iii) a hardness defined by a powder RDA of 100 to 200, and a PCR of 100 to about 150 when said silica gel additive (a) is formulated by itself into a dentifrice paste to a composition comprising abrasive silica gel or precipitated silica (b) wherein the silica gel additive (a) is added in an amount such that the ratio of the silica gel or precipitated silica (b) to silica gel additive (a) is at least 1:1 and the resulting dentifrice composition has an RDA of about 150 or below, and a PCR of at least 80 and up to about 150, and an REA of less than about 30, as measured on the IU scale.