Patent ID: 6379456
Filing Date: 2002-04-30
Classification: C04B,C09K,Y02W

Abstract:
A method of improving the flow properties of at least one dry particulate non-cementitious material comprising dry-blending a particulate flow enhancing additive with said non-cementitious material, said additive being comprised of a particulate solid adsorbent material having a flow inducing polar molecule producing chemical adsorbed thereon;wherein said flow inducing chemical is selected from the group consisting of polar molecule producing organic acids, their salts and acid anhydrides; wherein the weight ratio of said solid adsorbent material to said flow inducing chemical in said flow enhancing additive is in the range of from about 90:10 to about 10:90; and wherein said flow enhancing additive is blended with said non-cementitious material in an amount in the range of from about 0.01% to about 1.0% by weight of said non-cementitious material.