	US 11,690,791 B2
	Zinc phosphate complex
Shiri Nawrocki, Tenafly, NJ (US); Viktor Dubovoy, Cresskill, NJ (US); Long Pan, Somerset, NJ (US); Baohua Qiao, Howell, NJ (US); Gregory Szewczyk, Flemington, NJ (US); and Ravi Subramanyam, Belle Mead, NJ (US)
Assigned to Colgate-Palmolive Company, New York, NY (US)
Appl. No. 15/539,725
Filed by Colgate-Palmolive Company, New York, NY (US)
PCT Filed Dec. 26, 2014, PCT No. PCT/US2014/072422 § 371(c)(1), (2) Date Jun. 26, 2017, PCT Pub. No. WO2016/105431, PCT Pub. Date Jun. 30, 2016.
Prior Publication US 2017/0340534 A1, Nov. 30, 2017
This patent is subject to a terminal disclaimer.
Int. Cl. A61K 8/27 (2006.01); A61K 8/24 (2006.01); A61Q 11/00 (2006.01); A61K 8/365 (2006.01); A61Q 15/00 (2006.01)

CPC A61K 8/27 (2013.01) [A61K 8/24 (2013.01); A61K 8/365 (2013.01); A61Q 11/00 (2013.01); A61Q 15/00 (2013.01); A61K 2800/92 (2013.01)]

4 Claims

1. An oral care composition, comprising:

a soluble zinc polyphosphate complex, made by combining zinc citrate and sodium hexametaphosphate, and water;

wherein the relative amounts of zinc citrate and sodium hexametaphosphate to provide the soluble zinc polyphosphate complex with a phosphorus to zinc mole ratio of 20:1.