Montedison S.p.a.

Keramont Italia S.p.a.

Montedipe

Himont Italia S.r.l.

Giovanni Giunchi

Enrico Albizzati

Luigi Resconi

Umberto Giannini

Italo Borghi

Romano Mazzocchi

Alfredo Coassolo

Franco Fattorini

Andrea Adembri

Ching-Fong Chen

Alberto Grenni

Mauro Maritano

Giuseppe Motroni

Michele Petrera

Ender Savrun

Thermotropic melt processable liquid crystalline aromatic polyesters comprising units derived from a dicarboxylic acid and from a mixture of aromatic diols in which from 50% to 80% is (1-phenylethyl)hydroquinone and from 20% to 50% is hydroquinone.

Thermotropic liquid crystal aromatic polysters

Preforms for metal matrix composites consisting of ceramic material belonging to the class of oxides, nitrides, carbides, borides, oxynitrides and the like, prevailingly in an acicular form and having monocrystalline or polycrystalline structure, having a density ranging from 0.2 to 1.6 g/cm.sup.3 and porosity ranging from 50 to 95%.

Ceramic preforms having high mechanical strength, a process for their

A process for the production of primarily syndiotactic vinyl aromatic polymers by polymerizing or copolymerizing vinyl aromatic monomers such as styrene or styrene derivatives in the presence of a catalyst system comprising the product of the reaction between:

Process for producing crystalline vinyl aromatic polymers having mainly

Refractory and electroconductive ceramic compositions having a density higher than 4 g/cm.sup.3, ultimate tensile strength higher than 250 MPa, Vickers microhardness higher than 1000 kg/mm.sup.2 and electric resistivity lower than 600 microohm.cm, essentially consisting of alumina and of a nitride component of at least one transition metal belonging to groups IVB, VB or VIB of the Periodic Chart of the Elements.

Refractory and electroconductive ceramic compositions and process for

Compositions comprising from 5 to 50% by weight of a polyphenylene ether and from 95 to 50% by weight of a styrene polymer having a syndiotactic structure. Such compositions are endowed with enhanced mechanical properties compared to those containing amorphous polystyrene, or polystyrene having an isotactic structure.

Thermoplastic compositions based on syndiotactic polymers of styrene and

Polyacetylene having an apparent density at 20.degree. C. greater than 0.6 g/ccm and a surface area below 60 m.sup.2 /g is prepared by polymerizing gaseous acetylene in the presence of a catalytic system consisting of:

Process for the preparation of polyacetylene

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Novara, Italy

Giovanni Giunchi