Politecnico Di Milano

Prysmian S.p.a.

Pirelli Tyre S.p.a.

Brichima, S.p.a.

Bracco Imaging S.p.a.

Blaschim S.p.a.

Cam Tecnologie S.p.a.

Other

Consiglio Nazionale Delle Ricerche

Cam Technologie S.p.a.

Peysmian S.p.a.

Enicham Synthesis

Biaschim S.p.a.

Pirelli & C. Eco Technology S.p.a.

Attilio Citterio

Lidia Terruzzi

Gabriella Leonardi

Pamela De Martino

Maurizio Stefano Galimberti

Massimo Gola

Vincenzina Barbera

Tiziano Ambrosini

Roberto Sebastiano

Fulvio Uggeri

Luciano Lattuada

Enrico Albizzati

Massimo Visigalli

Aldo Belli

Paolo Maggioni

Antonio Marco Valerio

Evelin Vignale

Carlo Neri

Daniele Fancelli

Thomas Hanel

Francesco Minisci

Ehsan Fallahmohammadi

Luciano Pallini

Luca Giannini

Guido Rivolta

Luigi Caimi

Diego Tirelli

Roberta Fretta

Rodolfo Sica

Pier Giorgio Righetti

Silvia De Bernardinis

Elena Vismara

Federica Buonsanti

Giovanni Villa

Oreste Piccolo

Emiliano Resmini

Vito Scrima

Mariano Correale

Elisa Battistini

Aurelia Ferrigato

Roberta Mazzon

Alberto De Amicis

Luigi Fino

Carlo Vittorio Mazzocchia

Matteo Antonio Daghetta

Lorenzo Pellegrino

Enrico Zen

Gabriele Meli

Davide Belnome

Dario Bartolini

Francesca Baione

Cecilia Gelfi

Francesco Mauri

Suresh Udhavrao Shisodia

Lucio Filippini

Laura Tinucci

Jiemeng Li

Clementina Spera

Ombretta Motta

Giuditta Lampignano

The present invention relates to elastomer compositions comprising adducts between compounds of formula (I) preferably derived from natural sources such as mucic, pyromucic, glucaric, glycaric, galactaric, muconic acid and/or linear derivatives thereof containing ester or amide groups and/or cyclic derivatives thereof with heteroatoms in the ring, such as oxygen or nitrogen, and carbon allotropes in which the carbon is sphybridized, such as for example carbon nanotubes, graphene or nanographites, carbon black.

Elastomer compositions comprising an adduct between an SP2 hybridized carbon allotrope and a dicarboxylic acid derivative

Disclosed herein are flame-retardant electric cables () having a core containing an electric conductor () and an electrically insulating layer () made from a flame-retardant polyolefin-based composition including a) a cross-linked polyolefin as base polymer, b) silica, and c) carbon nanotubes, wherein the amount of silica is from 5 wt % to 10 wt % of the polyolefin-based composition, and the amount of carbon nanotubes is from 0.5 wt % to 2 wt % of the polyolefin-based composition. Such cables have improved flame retardant performances, especially regarding a lower occurrence of droplets during burning, which render them capable of being certified in higher classes of the current international standards, for example of the standard EN 50399:2011/A1 (2016).

Flame retardant electrical cable

An optical fibre comprising: an optical waveguide comprising a glass core surrounded by a glass cladding; a coating surrounding said optical waveguide comprising a polymer material comprising a cured polyester obtained by: (a) esterification of a reactant (A) selected from carboxylic acids, triglycerides, and mixtures thereof, having a C16-C24 aliphatic chain comprising at least two conjugated double bonds, with a reactant (B) selected from polyols having at least 3 hydroxyl groups, the polyols being thermally stable up to 300&#xb0; C.; (b) curing of the 10 so obtained polyester, in the presence of a transition metal salt, the transition metal being selected from Mn, Fe, Co, Cu, and Ni. Preferably, the step of curing is a thermal curing, preferably up to 300&#xb0; C. The transition metal salt acts as curing accelerator, i.e. it increases the curing rate so as to match the optical fibre drawing speed, the temperature of the glass exiting the drawing step and the drawing tower height commonly used in industrial plants for optical fibre production.

Optical fibre having a crosslinked polyester coating

The present invention concerns an optical fibre comprising: an optical waveguide comprising a glass core surrounded by a glass cladding; a coating surrounding said optical waveguide comprising a cured polymer material comprising a polyester obtained by esterification of: a reactant A selected from an acid, a triglyceride, or a mixture of triglycerides having a C-Caliphatic chain comprising at least two conjugated double bonds; and a polyol made of at least one monomer comprising at least 3 hydroxyl groups, the polyol being thermally stable up to 300&#xb0; C. (reactant B). The present invention concerns also the above said polyester coating, a method for coating an optical fibre with said polyester coating and a method for obtaining predetermined mechanical properties of a coating for an optical fibre. The cured polymer forming the coating can be prepared by curing the polyester of the invention either thermally or by radiation.

Optical fibre coated with a polyester coating

The present invention relates to an energy cable comprising a cable core comprising an electric conductor and a crosslinked electrically insulating layer, wherein the cable core further comprises a microporous material having a bimodal pore volume distribution with a first peak of the distribution having a maximum at a pore diameter value within the range 5.5-6.5 &#x212b; and a second peak of the distribution having a maximum at a pore diameter value within the range 7.5-8.5 &#x212b;, the maximum values of the first and the second peak corresponding to an incremental pore volume of at least 4&#xd7;10cm/g. The present invention also relates to a method for extracting methane crosslinking by-products from a crosslinked electrically insulating layer of an energy cable.

Energy cable having a crosslinked electrically insulating layer, and method for extracting crosslinking by-products therefrom

An optical fibre comprising: an optical waveguide comprising a glass core surrounded by a glass cladding; a primary coating surrounding the optical waveguide; a secondary coating, surrounding the primary coating, comprising a cured polymer material obtained by curing a curable coating composition comprising: (a) a polyester obtained by esterification of a reactant A selected from carboxylic acids, triglycerides, and mixtures thereof, having a C-Caliphatic chain comprising at least two double bonds spaced by one carbon atom at most, with a reactant B selected from polyols having at least 3 hydroxyl groups, the polyols being thermally stable up to 300&#xb0; C.; (b) an aromatic glycidyl epoxy resin; (c) an aliphatic polyether hardener containing from 8 to 64 hydroxy groups and/or from 2 to 4 epoxy groups; and (d) a secondary amine compound as curing agent. Preferably, the step of curing is a thermal curing, preferably up to 300&#xb0; C. When cured by heat, the coating material can be applied during the drawing process of the fibre so as to exploit the heat of the just drawn glass fibre as heat source for curing.

Optical fibre having a crosslinked secondary coating

An optical fibre comprising: an optical waveguide comprising a core surrounded by a cladding; a primary coating surrounding the optical waveguide; and a coating, surrounding the primary coating, comprising a polymer material obtained by radiation curing a polymerizable composition, the polymer material having a degree of crystallinity of at most 12. The coating of the optical fiber according to the present invention exhibits enhanced resistance upon exposure to high temperature, preferably a temperature over 250&#xb0; C., while endowed with required features such as protective capability, elasticity, adhesion to underlying layer and simple manufacturing.

Optical fibre with enhanced high temperature resistance

The present invention relates to a process for the synthesis of molecules that have a pyrrole ring bonded to a diol. In particular, the invention relates to the synthesis of molecules that have the pyrrole ring and a diol derived from serinol by means of a process that does not demand the use of solvents or chemical catalysts. The process consists of a first reaction phase that takes place without any solvents and/or organic diluents, giving rise to an intermediate compound, and a second phase in which the intermediate compound is converted into the required compound by heating the reaction mixture to a temperature ranging from 100&#xb0; to 200&#xb0; C. for an interval in the range of 1 to 500 minutes, or by adding a carbon allotrope or its derivatives.

Process for the synthesis of 2-(2,5-dimethyl-1H-pyrrol-1-yl)-1,3-propanediol and its substituted derivatives

A power cable having a metallic electrical conductor surrounded by one or more semiconductive layer and more or more insulating layer, wherein the cable has at least one metallic element made of aluminum, having a corrosion inhibitor provided in direct contact with the at least one metallic element made of aluminum.

Power cable having an aluminum corrosion inhibitor

An adduct consists of derivatives of serinol pyrrole and of carbon allotropes in which the carbon is sphybridized, such as carbon nanotubes, graphene or nano-graphites or carbon black, in order to improve the chemical-physical properties of the allotropes increasing above all their dispersibility and stability in liquid media and in polymer matrices, and a process for preparation of the adduct.

Adducts between carbon allotropes and serinol derivatives

The present invention relates to a process for the preparation of iodinated anilines; in particular, it relates to a process including the direct iodination, with suitably activated iodine, of 3,5-disubstituted anilines to the corresponding 3,5-disubstituted-2,4,6-triiodoanilines, which are useful intermediates for the synthesis of x-ray contrast media, and to the preparation of the contrast media themselves. 

Process for the iodination of aromatic compounds

The present invention relates to a process for the preparation of iodinated phenols; in particular; it relates to a process including the direct iodination, with suitably activated iodine, of 3,5-disubstituted phenol compounds to the corresponding 3,5-disubstituted-2,4,6-triiodophenols, which are useful intermediates for the synthesis of x-ray contrast media, and to the preparation of the contrast media themselves.

Process for the iodination of phenolic derivatives

A tire includes at least one structural element including a crosslinked elastomeric material obtained by crosslinking a crosslinkable elastomeric composition including: (a) an amount higher than or equal to 30 phr, preferably 40 phr to 100 phr, of at least one polyisoprene rubber; (b) an amount lower than or equal to 70 phr, preferably 0 phr to 60 phr, of at least one diene elastomeric polymer other than the polyisoprene rubber (a); (c) an amount higher than or equal to 30 phr, preferably 40 phr to 120 phr, of at least one carbon black reinforcing filler; (d) 0.2 phr to 10 phr, preferably 1 phr to 5 phr, of at least one copolymer of at least one ethylenically unsaturated carboxylic acid or a derivative thereof with at least one ethylenically unsaturated monomer containing at least one polyoxyalkylene side chain. Preferably, the structural element is a tire's sidewall.

Tire and crosslinkable elastomeric composition

A polymeric surfactant obtained by the reaction of: (i) a polyolefin oligomer functionalized with at least one group deriving from a dicarboxylic acid, or a derivative thereof; and (ii) a polyoxyalkylene of linear oxyalkylene units. The polyoxyalkylene is linked to a long-chain alkyl group optionally containing one or more ethylenic unsaturations. The polymeric surfactant may be utilized to stabilize a fuel of an emulsion between water and a liquid hydrocarbon. The fuel has high stability over time, without forming carbonaceous deposits which adhere to metal surfaces.

Fuel comprising an emulsion between water and a liquid hydrocarbon

Fuel made from an emulsion between water and a liquid hydrocarbon and polymeric surfactant, used to stabilize the emulsion, obtainable by (a) reacting (i) at least one polyolefin oligomer functionalized with at least one group deriving from a dicarboxylic acid, or a derivative thereof; and (ii) at least one polyoxylalkylene having linear oxyalkylene units, the polyoxyalkylene being linked to a long-chain alkyl group optionally containing at least one ethylenic unsaturation; and (b) reacting the product of step (a) with (ii) at least one nitrogen compound selected from monoamines, polyamines and quaternary ammonium hydroxides. The fuel has high stability over time, without forming carbonaceous deposits adhering to metal surfaces.

Growing community of inventors

Milan, Italy

Attilio Citterio