Enichem S.p.a

Polimeri Europa S.p.a.

Ministero Dell 'Universita'e Della Ricerca Scientifica E Technologica

Versalis S.p.a.

Roberto Tassinari

Daniele Bianchi

Thomas Paul Lockhart

Pietro Cesti

Rino D'Aloisio

Marco Ricci

Rossella Bortolo

Ezio A Battistel

Lucilla Del Gaudio

Alessandra Belloni

Giuliana Franzosi

Sandra Cobianco

Rodolfo Vignola

Sandro Spezia

Cristina Tonini

Process for the preparation of a water-in-oil or oil-in-water nanoemulsion wherein the dispersed phase is distributed in the dispersing phase in the form of droplets having a diameter ranging from 1 to 500 nm, comprising:

Process for the preparation of water-in-oil and oil-in-water nanoemulsions

Process for the preparation of a water-in-oil or oil-in-water nanoemulsion wherein the dispersed phase is distributed in the dispersing phase in the form of droplets having a diameter ranging from 1 to 500 nm, comprising: 1) the preparation of a homogeneous water/oil blend (I) characterized by an interface tension lower than 1 mN/m, comprising water in an amount of 30 to 70% by weight, at least two surface-active agents having a different HLB, selected from non-ionic, anionic, polymeric surface-active agents, said surface-active agents being present in such a quantity as to make the blend homogeneous; 2) the dilution of the blend (I) in a dispersing phase consisting of oil or water with the addition of a surface-active agent, selected from non-ionic, anionic, polymeric surface-active agents, the quantity of the dispersing phase and surface-active agent being such as to obtain a nanoemulsion having a HLB different from that of the blend (I).

The invention relates to a process for the hydroxylation of aromatic hydrocarbons by direct oxidation with hydrogen peroxide. The process is carried out in the presence of a catalyst comprising:

Process for the hydroxylation of aromatic hydrocarbons

A process is described for the separation of the optical isomers of alphayl- or alpha-aryloxy- carboxylic acids by means of the stereoselective hydrolysis of racemic alkyl esters of the above acids in the presence of bacteria or their enzymes, selected from the species Brevibacterium, Bacteridium, Micrococcus, and Bacillus.

Process for the enzymatic separation of the optical isomers of

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Novara, Italy

Roberto Tassinari