Patent ID: 8747544
Filing Date: 2014-06-10
Classification: C01P,C08K,C09C,C09D

Abstract:
1. A solid silica preparation in granule form comprising (A) 30% to 60% by weight, based on the total weight of the preparation, of a silica; (B) 20% to 50% by weight, based on the total weight of the preparation, of at least one additive selected from the group consisting of a water-soluble, nonionic, surface-active additive based on polyethers, a water-soluble, surface-active additive comprising carboxylate groups, a polyurethane, and an anionic, surface-active additive based on acidic phosphoric, phosphonic, sulfuric or sulfonic esters; (C) further components comprising no pigments, wherein component (C) comprises 0.1% to 5% by weight, based on the total weight of the preparation, of an antioxidant, and the sum of all components (A), (B), and (C) comprise 100% by weight of the solid silica preparation.