synthetic paper compositions and environmentally-friendly writing and printing films, synthetic papers and films obtained from and use of such compositions

摘要

synthetic paper compositions and environmentally-friendly writing and printing films, synthetic papers and films obtained from and use of such compositions. Compositions for synthetic papers, flat and tubular films and coextruded for writing and printing are described, from composites based on recycled and virgin thermoplastic polymers, mineral fillers and additives, and using multi-layer or monolayer biaxial or monaxial orientation processes. Polyolefin polymers such as polypropylene (pp), polyethylene and their copolymers, in addition to styrenic polymers, are preferably used in the form of recycled and virgin materials. The recycled polymers used include not only those from post-consumer waste, but also industrial waste. The present invention differs from the others either by the preferential use of recycled post-consumer waste mainly or by the compositions or by the distinct materials or processes employed in the production of synthetic films or sheets.