03.29.24
US Patent No. 11,931,437 B2 (Madhuleena Bhadra, Michael Prencipe, Aarti Rege); Colgate-Palmolive Company has patented a dentifrice composition that contains a zinc ion source that is a soluble or sparingly soluble compound of zinc with inorganic counterions; stannous fluoride; and a silica abrasive having a N2 BET surface area of less than 50 m2/g and an Einlehner hardness of from 4 to 11, and an oil absorption of from 80 cc/100 g to 100 cc/100 g.