Patent ID: 8067355
Filing Date: 2011-11-29
Classification: A61K,A61Q,C11D,Y10T

Abstract:
1. A particle composition comprising one or more particles comprising a core material and a wall, material that at least partially surrounds said core material, said particles being selected from the group consisting of Type 1 particles, Type 2 particles, Type 3 particles, Type 4 particles and mixtures thereof; wherein the Type 1 particles have a Volume Weighted Fracture Strength of less than 0.8 MPa; wherein the Type 2 particles have a Volume Weighted Fracture Strength of from 0.5 MPa to about 2 MPa; wherein the Type 3 particles have a Volume Weighted Fracture Strength of from about 1.5 MPa to about 5 MPa; wherein the Type 4 particles have a Volume Weighted Fracture Strength of from about 5 MPa to about 16 MPa, wherein the volume weight of each type of particle in said particle composition is a follows: