Enichem S.p.a

Montedipe

Polimeri Europa S.p.a.

Ecp Enichem Polimeri S.r.l.

Versalis S.p.a.

Anna Grazia Rossi

Italo Borghi

Davide Preti

Roberto Nocci

Dario Ghidoni

Gian C Fasulo

Giuseppe Cigna

Nicola Vecchini

Alessandro Casalini

Savino Matarrese

Luca Monti

Mauro Lo Consolo

Luigi Bonetti

Vilma Fornasari

Rubber-reinforced vinyl aromatic polymers having a strictly bimodal morphology, comprising from 55 to 90% by weight of a rigid polymeric matrix and from 10 to 45% by weight of a rubbery phase dispersed inside said rigid polymeric matrix, in the form of grafted and occluded particles and wherein said rubber particles consist of from 60 to 99% by weight of particles with a capsule or 'core-shell' morphology and from 1 to 40% by weight of particles with a 'salami' morphology, said percentages being measured on the basis of the weight of the rubber particles only.

Rubber-reinforced vinyl aromatic polymers

Process for the preparation of vinylaromatic copolymers reinforced with rubber which comprises:

Process for the preparation of vinylaromatic copolymers reinforced with

Process for the preparation of ABS which comprises:

Process for the preparation of ABS resins

A rubber-reinforced vinyl aromatic (co)polymer comprising a polymeric matrix and a rubber phase dispersed and/or grafted in the polymeric matrix and consisting of a mixture of(i) a diene rubber and(ii) a vinyl aromatic monomer/conjugated 1,3-diene linear block copolymer, said block copolymer having a diene content exceeding 80 wt % and, respectively, a vinyl aromatic monomer content of less than 20 wt %.

Rubber-reinforced vinyl aromatic (CO) polymer

Thermoplastic compositions having improved mechanical characteristics and particularly an improved impact resistance, especially when measured on test pieces having high thickness, comprising:

Thermoplastic compositions based on a vinyl aromatic graft copolymer and

Thermoplastic compositions having improved mechanical, thermal and rheological characteristics comprising a blend of:

Thermoplastic compositions based on a vinyl aromatic co-polymer and a

Process for the continuous production in solution of styrene thermoplastic resins by polymerization of a vinyl-aromatic monomer and of a vinyl-nitrile monomer in the presence of an elastomer and of a starter, wherein polymerization is conducted in two or more steps, wherein the elastomeric component is fed, in solution in the solvent and/or in the monomers, to the first step, polymerization is carried out in the subsequent steps at temperatures ranging from 70.degree. to 150.degree. C., in each step the reaction mass is gently and homogeneously stirred and the reaction product is caused to flow to a thin evaporator heated at 150.degree.-300.degree. C.

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Anna Grazia Rossi