US 11,839,666 B2
Oral care article comprising a hydrophobic delivery carrier and solid hydrophilic particles comprising an agent
Paul Albert Sagel, Maineville, OH (US); and Jayanth Rajaiah, Loveland, OH (US)
Assigned to The Procter & Gamble Company, Cincinnati, OH (US)
Filed by The Procter & Gamble Company, Cincinnati, OH (US)
Filed on Sep. 22, 2021, as Appl. No. 17/481,397.
Claims priority of provisional application 63/093,523, filed on Oct. 19, 2020.
Claims priority of provisional application 63/093,518, filed on Oct. 19, 2020.
Claims priority of provisional application 63/093,513, filed on Oct. 19, 2020.
Claims priority of provisional application 63/093,536, filed on Oct. 19, 2020.
Claims priority of provisional application 63/093,529, filed on Oct. 19, 2020.
Prior Publication US 2022/0117864 A1, Apr. 21, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61K 8/02 (2006.01); A61K 8/22 (2006.01); A61K 8/81 (2006.01); A61Q 11/00 (2006.01)
CPC A61K 8/0204 (2013.01) [A61K 8/0208 (2013.01); A61K 8/0233 (2013.01); A61K 8/22 (2013.01); A61K 8/8176 (2013.01); A61Q 11/00 (2013.01); A61K 2800/412 (2013.01); A61K 2800/56 (2013.01); A61K 2800/81 (2013.01); A61K 2800/88 (2013.01)] 26 Claims
 
1. An oral care article comprising:
a) a solid hydrophobic delivery carrier in the form of a strip having a length and a width forming a first surface and having a thickness extending from the first surface to a second surface, wherein an average thickness is less than about 3 mm; and
b) solid hydrophilic particles comprising an active agent for oral care comprising at least one of healing agent(s), anti-calculus agent(s), anti-caries agent(s), antimicrobial agent(s), dentinal desensitizing agent(s), anesthetic agent(s), antifungal agent(s), coolant(s), anti-inflammatory agent(s), selective H-2 antagonist(s), nutrient(s), erythritol, probiotics, fluoride ion source(s), hydrophilic bleaching agent(s), tooth whitening agent(s), or combinations thereof;
wherein the solid hydrophilic particles are disposed in and embedded in the solid hydrophobic delivery carrier, wherein the solid hydrophilic particles are disposed i) at least partially below the first surface, and ii) at least partially at or above the first surface of the solid hydrophobic delivery carrier; and
wherein a concentration of the active agent at the first surface is greater than a concentration of the active agent at the second surface.