The Dow Chemical Company

Nanocyl S.a.

Futerro S.a.

S.a. Nanocyl

Michael Alexandre

Philippe Dubois

Daniel Bonduel

Michael Mainil

Juan M Garces

Dean M Millar

Philippe Coszach

Gloria Vendrell

Tao Sun

Philippe Degee

Alexander Kuperman

Jean Marie Raquez

Ibrahim Barakat

Myriam Devalckenaere

Robert J E G Jerome

Miguel Garcia-Marti

Fran&ccedil;ois J Hindryckx

Robert J E G J&eacute;r&ocirc ;me

Miguel Garc&iacute;a Mart&iacute;

The present invention concerns a fireproof composition consisting of reticulated polysiloxane and raw carbon nanotubes with a 'bound rubber' value greater than or equal to 15 grams of carbon nanotube, said carbon nanotubes representing between 0.05 and 1% of the total weight of said composition.

Fireproof composition

The process of obtaining a polylactide-urethane copolymer is described which includes contacting an &#x3b1;, &#x3c9; dihydroxyl polylactide prepolymer of general formula I wherein X is NH or O, R is an alkyl or an aryl group, n and n' are integer numbers which are substantially the same and are in the range from 20 to 140, with a diisocyanate compound of general formula IIO&#x2550;C&#x2550;N&#x2014;R&#x2032;&#x2014;N&#x2550;C&#x2550;Owherein R&#x2032; is an alkyl or an aryl group and with an amine or an alcohol of general formula IIIR&#x2033;X&#x2032;]wherein R&#x2033; is an alkyl or an aryl group and X&#x2032; is NHor OH, and with the proviso that at least one of R or R&#x2033; is an aryl group.

Polylactide-urethane copolymers

This invention relates to a method for producing carbon nanotubes in a dispersed state. The method comprises a stage whereby polymerization is carried out from at least one so-called monomer of interest, in the presence of a catalytic system. The catalytic system comprises a co-catalyst/catalyst catalytic couple that is supported by a catalyst carrier, which corresponds to said carbon nanotubes. The invention also relates to composite materials obtained by said method, and to a catalytic system for implementing said method. The invention further relates to the use of the inventive method and products in a field of polymers, especially that of nanotechnologies.

Polymer-based composites comprising carbon nanotubes as a filler, method for producing said composites, and associated uses

The invention relates to a method for producing carbon nanotubes in a dispersed state. The method comprises a stage whereby polymerization is carried out from at least one so-called monomer of interest, in the presence of a catalytic system. The catalytic system comprises a cocatalyst/catalyst catalytic couple that is supported by a catalyst carrier, which corresponds to said carbon nanotubes. The invention also relates to composite materials obtained by said method, and to a catalytic system for implementing said method. The invention further relates to the use of the inventive method and products in the field of polymers, especially that of nanotechnologies.

The present invention is a nanocomposite which is a dispersion of nanofiller particles derived from layered metal oxides or metal oxide salts. The nanocomposite is advantageously prepared by first swelling an untreated clay in water, then removing the water to form an organophilic clay that is dispersible in non-polar organic solvents. The organophilic clay can then be treated with an alkyl aluminoxane and subsequently a catalyst to form a complex that promotes olefin or styrenic polymerization and platelet dispersion. The nanocomposite can be prepared directly by in situ polymerization of the olefin or the styrene at the nanofiller particles without shear, without an ion exchange step, and without the need to incorporate polar substituents into the polyolefin or polystyrene.

Polyolefin nanocomposites

The present invention relates to a process for preparing a filled polymer composite comprising from 1 to 98 percent by weight of an interpolymer and from 2 to 99 percent by weight of a filler, said process comprising copolymerization in the presence of a cyclopentadienyl-containing transition metal catalyst and a filler, said filler having immobilized thereon a suitable cocatalyst.

Homogeneous filled polymer composite

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Ougree, Belgium

Michael Alexandre