Anic S.p.a.

Snamprogetti S.p.a.

Eniricerche S.p.a.

Enichem Anic S.p.a.

Aldo Brancaccio

Sebastiano Cesca

Sergio Arrighetti

Gianfranco Boccalon

Giampaolo Giuliani

Alberto Pelacani

Giampaolo Guiliani

Giuseppe Tigani

Gianpaolo Giuliani

A tough and long-lasting adhesion of polyolefins to metal substrates is realized by means of a process comprising the following four process steps, carried out in succession:

Process for coating metal surfaces with polyolefins

Novel thermoplastic materials can be obtained in which besides the resin formed by polymerizing alkenylaromatic with or without acrylic and vinylic monomers, there is also a branched interpolymer the main carbon atom chain of which has a saturated elastomeric nature, whereas the chains which make up the branch-offs have a plastic character. Side-chains on the saturated rubber, which have the same composition as the non-grafted resin, favors the even dispersion of the rubber in the resin matrix so that the physical and mechanical properties of the resin are considerably improved: an improved resistance to ageing is also achieved. A styrene-acrylonitrile resin grafted on a saturated ethylene-propylene copolymer is but an example. The preparation process is carried out in solution: critical conditions, additives, adjuvants, initiators and promoters are indicated and exemplified. Irradiation with ultraviolet rays may be of help.

Method for the preparation of novel thermoplastic materials, and

Improved shock-resistant resins are obtained by graft-copolymerizing a monomer selected from among alkenyl aromatics, vinylics, acrylics, their halogenated derivatives or admixtures of same, with maleic anhydride and/or an imide derivative of such anhydride and with a terpolymer composed by ethylene, a higher homolog of ethylene and a polyene having at least one system of conjugated double bonds.

Shock-resistant resin and method for their preparation

A polymeric material having high impact resistance and improved resistance to ageing is prepared by grafting monomers such as acrylonitrile and styrene upon a rubbery terpolymer of ethylene, an alpha-olefin such as propylene and a triene termonomer such as 2-(1' or 2' or 3' methyl-1' or 2' or 3' cyclopenta-2' or 4' dienyl) norborn-5-enyl-methane, containing from 0.1 to 20 pairs of conjugate double bonds per thousand carbon atoms in the polymer chain.

Polymeric material having impact resistant properties and process for

Growing community of inventors

Cremona, Italy

Aldo Brancaccio