Patent ID: 9693552
Date: 2017-07-04
CPC Classifications: A01N,A61K,A61P

Claim:
1. Particles for delivering a bioactive agent, each of said particles comprising a polymer matrix, droplets of an oil with at least one bioactive agent dissolved or dispersed therein, at least first and second density-adjusting compounds and at least one nutrient, wherein the first density-adjusting compound is polypropylene wax having a density lower than 1 g/cm 3 , and the second density-adjusting compound has a density greater than 1 g/cm 3 and is tricalcium phosphate; wherein the polymer matrix comprises at least one bioadhesive polymer and wherein the droplets with the at least one bioactive agent dissolved or dispersed therein are embedded in the polymer matrix; wherein the bioactive agent is approximately 0.05% to 10% by weight, the bioadhesive polymer is approximately 0.05% to 10% by weight, the first and second density-adjusting compounds together are approximately 0.05% to 30% by weight and the nutrient is approximately 0.05% to 50% by weight of the particles.