Bituminous extrusion or moulding composition contain - ing ethylene or propylene (co) polymers

摘要

Moulded articles, lining and sealing sheets and carpet backings are made from compositions of (a) 100 parts weight bitumen of 1-150 penetration (DIN 1 995) as deacidified petroleum distillation residue containing (1) 20-40% aromatic, (2) 16-25% naphthenic bituminous hydrocarbons, (3) 27-45% Ca naphthenates and sulphonates, (4) 11-20% Ca(OH)2 and CaSO4 and (5) 0.5-5% S(1 to 5 = 100%); (b) 25-200 parts weight ethylene or propylene homopolymer or copolymer of (b1) 30-97% ethylene and (b2) 3-70% vinyl ester of 2-3C alkanecarboxylic acid and/or 1-4C alkyl ester of 3-4C alkanecarboxylic acid (b1 + b2 = 100) and optionally (c) usual additives.