Abstract:
NOVEL PLASTIC MEMBRANES AND MEMBRANE LAMINATES USEFUL IN ONE-PLY ROOFING SYSTEMS AND IN SIMILAR APPLICATIONS MAY BE PREPARED FROM CHLORINATED LINEAR POLYETHYLENE PLUS FILLER, STABILIZER AND PIGMENT. THE CHLORINATED LINEAR POLYETHYLENE COMPRISES A MIXTURE OF TWO LINEAR POLYETHYLENES OF DIFFERENT COMPOSITIONS AND THE STABILIZER IS A MIXTURE OF 3,4 EPOXY-6-METHYLCYCLOHEXYLMETHYL 1-3, 4-EPOXY-6-METHYLCYCLOHEXANECARBOXYLATE; 2-6DITERT-BUTYL-4-METHYLPHENOL, AND AN ALCOHOL SELECTED FROM THE GROUP CINSISTING ESSENTIALLY OF SORBITOL, PENTAERYTHRITOL AND MIXTURES THEREOF
Abstract:
A floor covering composition comprises chlorinated polyethylene + polyvinyl chloride, vinyl chloride/vinyl acetate copolymer or a mixture of polyvinyl chloride with polyvinyl acetate + filler + plasticizer. The filler may be selected from clays (e.g. kaolin), calcium carbonate, barytes, asbestine, talc, calcium sulphate, silica, mica, titanium dioxide, carbon black, phthalocyanine blue or green, chrome yellow, pulverized marble or limestone, asbestos, cork and wood flour. The plasticizer may be any of the monomeric esters of phosphoric, phthalic, adipic or sebacic acids, and/or an epoxidized drying oil, e.g. epoxidized soya bean oil. Optional ingredients are stabilizers such as complexes and/or salts of Pb, Sn, Ba, Cd, Zn or Na, and lubricants such as stearic acid, stearamide or polyethylene wax.