Montedison S.p.a.

Moplefan S.p.a.

Montefibre S.p.a.

Pierpaolo Camprincoli

Enzo Marcaccioli

Luciano Rosati

Andrea Vittone

Luciano Clementini

Adriano Grandona

Alfredo Gemmi

Composite film for packing comprising an inner supporting layer of a polyolefinic film coated, on one or both faces hereof, with a polyolefin containing free carboxylic acid along the polymeric chain and with a vinyl polymer or with a polyamide.

Composite packing film

Fibrillated films or flat netlike structures made of synthetic polymers and having a specific surface area of more than 12 m.sup.2 /g. the thickness thereof in microns are disclosed, as is use of said films or flat netlike structures as reinforcement for hydrosetting binders such as cement. A method of preparing the fibrillated films or flat netlike structures is also disclosed.

Process for preparing fibrillated films or netlike structures of

Fibrilled polyolefinic films, of a net-like structure, containing, incorporated therein, from 1% to 20% by weight of a cement-based material, are used as a reinforcement in the preparation of manufactured products based on hydraulic binders. A process for preparing the fibrilled films and hydraulic binder-based manufactured products comprising them are also disclosed.

Fibrilled polymeric films as reinforcement in manufactured products

Fibrillated polymeric films, having a netlike structure, containing incorporated therein from 1 to 30% by weight of a car bonate of an alkaline-earth metal, are utilized as reinforcement in the manufacture of articles based on hydraulic binders.

Fibrillated polymeric films as reinforcement in manufactured articles

There are disclosed new conglomerates for use in the construction or building industry and which consist of cement, gypsum, concrete and similar materials reinforced by additives which are modified polyolefin fibers plus, optionally, asbestos fibers. Processes for preparing the new and novel agglomerates are also disclosed.

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Terni, Italy

Pierpaolo Camprincoli