Process for bonding polymer to siliceous solid of high specific surface area and product

Claim 1

IN A PROCESS FOR MAKING A POLYMER WHICH CONTAINS AN INORGANIC SOLID THE STEPS COMPRISING POLYMERIZING AN ETHYLENICALLY-UNSATURATED COMPOUND IN THE PRESENCE OF A SOLID MATERIAL INTROUDUCED BEFORE POLYMERIZATION IS COMPLETE, SAID SOLID MATERIAL CONSISTING OF AN INORGANIC SOLID SUBSTRATE SURFACE-COATED WITH -OR GROUPS, THE SUBSTRATE HAVING A SURFACE OF SILICA AND HAVING A SPECIFIC SURFACE AREA OF AT LEAST ONE SQUARE METER PER GRAM, THE COATING OF -OR GROUPS BEING ATTACHED BY CHEMICAL REACTION TO SAID SILICA THROUGH -SI-O-C- BONDS, R BEING A BROMINEREACTIVE, ETHYLINICALLY-UNSATURATED HYDROCARBON RADICAL OF 2 TO 18 CARBON ATOMS, WHEREIN THE CARBON ATOM ATTACHED TO OXYGEN IS ALSO ATTACHED TO HYDROGEN, AND THERE BEING AT LEAST ONE R RADICAL FOR EACH SQUARE MILLIMICRON OF SURFACE-COATED SOLID.