	US 11,883,520 B2
	Leave-on oral care compositions
Ross Strand, Singapore (SG); Yang Su, Beijing (CN); Yunming Shi, Beijing (CN); Thanigaivel Shanmugam, Beijing (CN); Guannan Wang, Beijing (CN); and Xiaoxiao Li, Beijing (CN)
Assigned to The Procter & Gamble Company, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Jun. 12, 2020, as Appl. No. 16/899,882.
Claims priority of application No. PCT/CN2019/091294 (WO), filed on Jun. 14, 2019; and application No. PCT/CN2020/095575 (WO), filed on Jun. 11, 2020.
Prior Publication US 2020/0390677 A1, Dec. 17, 2020
Int. Cl. A61K 8/73 (2006.01); A61K 8/04 (2006.01); A61K 8/49 (2006.01); A61K 8/81 (2006.01); A61Q 1/00 (2006.01); A61Q 11/00 (2006.01)

CPC A61K 8/735 (2013.01) [A61K 8/042 (2013.01); A61K 8/4946 (2013.01); A61K 8/8147 (2013.01); A61Q 11/00 (2013.01); A61K 2800/30 (2013.01); A61K 2800/87 (2013.01); A61K 2800/92 (2013.01)]

16 Claims

1. An oral care composition comprising:

a) from about 0.1% to about 10%, by weight of the composition, of a hyaluronic acid or a salt thereof, wherein the hyaluronic acid has a weight average molecular weight of from about 900,000 Daltons to about 2,000,000 Daltons;

b) from about 0.5% to about 10%, by weight of the composition, of a polyacrylic acid;

c) from about 0.5% to about 10%, by weight of the composition, of an additional polymer, wherein the additional polymer comprises polyvinyl pyrrolidine, hydroxyethyl cellulose, or combinations thereof, wherein the additional polymer does not include an anionic cellulose;

d) from about 30% to about 70%, by weight of the composition, of total water content; and

e) allantoin;

wherein the oral care composition is substantially free of abrasives; and

wherein the oral care composition is a leave-on composition.