Process for the production of marbleized reinforced polyacrylic compositions

Abstract

Abstract METHOD FOR PREPARING MARBLEIZED INORGANIC FILLER REINFORCED POLYACRYLIC COMPOSITE PRODUCTS BY THE FREE RADICAL CATALYZED POLYMERIZATION OF AN ACRYLIC MONOMER IN THE PRESENCE OF AT LEAST 25 AND UP TO 90 WEIHT PERCENT OF AN INORGANIC PARTICULATE FILLER AND A COUPLING AGENT TO EFFECT CHEMICAL BONDING BETWEEN THE FILLER AND THE POLYMER; CHARACTERIZED BY THE ADDITION TO A MOVING MONOMER-COUPLING AGENT-FILLER SLURRY COMPOSITION, WHICH SLURRY COMPOSITION MAY BE PARTIALLY POLYMERIZED PRIOR TO SAID ADDITION, OF RIBBONS OF PIGMENTED SOLID POLYMERIC COMPOSITIONS CONSISTING OF A POLYBLEND OF A POLYVINYL CHLORIDEPOLYVINYL ACETATE COPOLYMER WITH A POLYALKYL METHACRYLATE AND PLASITICIZER THEREFOR TOGETHER WITH ONE OR MORE PIGMENT ADDITIVES IN AN AMOUNT TO GIVE THE DESIRED COLOR AND OPTIONALLY CONTAINING ONE OR MORE INORGANIC FILLERS AND COUPLING AGENTS OF THE SAME GENERAL NATURE AS THAT PRESENT IN THE SLURRY COMPOSITION, WHEREIN SAID ADDITION OF THE PIGMENTED POLYMERIC RIBBONS IS EFFECTED JUST PRIOR TO CASTING AND FOR A SUFFICIENT EXPOSURE TIME IN THE SLURRY TO CAUSE SAID RIBBONS TO PARTIALLY DISSOLVE IN SAID SLURRY AND FORM COLOR-SHAPED STRIATIONS THEREIN SIMULATING THE NATURAL TEXTURE AND COLORATION OF VARIEGATED AND BANDED MARBLES AND OTHER SIMILAR QUARRIED ROCK.

Inventors

• 👤 Robert E Miller

Bibliographic Details