Rhodia Chimie

Perstorp France

Rhone-poulenc Chimie

Vencorex France

Other

Rhodia Operations

Rhodia Limited

Rhodia Polyamide Intermediates

Vencorex Us, Inc.

Jean-Marie Bernard

Denis Revelant

Bernard Jousseaume

Bernard Vogin

Jean-Marc Frances

Philippe Olier

Jean-Pierre Genet

Pierre Marcel Ardaud

Monique Savignac

Francis John Williams

Errol Blart

Sandrine Lemaire-Audoire

Michel Pereyre

Thierry Toupance

Minou Nabavi

Johannes Schwarz

Christian Laporte

Thierry Jeannette

Fr&eacute;d&eacute;ric Dallemer

Philippe Barbeau

Nicholas Noiret

Eugénie Charriere

Mathias Dubecq

Philippe Marion

Florence Tournilhac

Shiming Wo

Damien Bourgeois

Ming J Chen

Jean-Luc Lepage

Eric Roche

Christian Gervais

Lise Trouillet-Fonti

Arnaud Ponce

Richard P Rosen

Fr&eacute;d&eacute;ric Leising

Eug&eacute;nie Charriere

Minow Nabavi

Eugenie Perroud

Kamel Bouzid

Corinne Simone Duffy

Qiwen Han

Philippe Galy-Jammou

Jean-Pierre Corbet

Marc Visseau

Damien Bonneau

Michel Carlo

Stéphane Randu

Eugènie Charriere

Cédric Amouyal

Johannès Schwarz

François Briois

Aurore Jomier

Anne-Marie Rataboul-leduc

Julien Tournayre

Corinne Varron

Compositions containing particular branched carboxylic acid diesters obtained from a mixture of branched dinitriles exhibit especially advantageous solvating properties and thus are useful substitutes for conventional solvents, in particular halogenated solvents.

Solvent media comprising branched carboxylic acid diesters

The invention relates to a modified (poly)isocyanate composition that contains a modified (poly)isocyanate and at least one solvent. The invention also relates to the use of this composition for preparing coatings such as paints and varnishes.

Composition containing a modified (poly) isocyanate and a solvent of the acetal or aliphatic ketone type, and use of said composition for producing coatings

The present invention relates to an expandable polyamide composition and to a polyamide foam obtained therefrom. This composition comprises a compound comprising at least one isocyanate function, a polyamide and a compound comprising at least one carboxylic acid function. The invention also relates to a process for preparing a polyamide foam from this composition.

Expandable polyamide composition and polyamide foam obtained therefrom

Hydrodispersible polyisocyanate compositions

A process for the preparation of an allophanate of one or more identical or different isocyanates, compositions obtained by the process, and uses of the compositions are disclosed. The process comprises reacting an isocyanate with at least one monoalcohol comprising an ether or polyether functional group in the presence of a bismuth-comprising catalyst and a metal compound as co-catalyst.

Method for preparing an allophanate, allophanate, and low-viscosity composition containing the allophanate

Disclosed is a compositions comprising isocyanate sub-composition comprising by weight not more than 5% of diisocyanate monomers, a dehydrating agent selected among compounds bearing dihydrocarbylsilyl groups bonded to a metalloid of the chalcogen column or to an atom of the nitrogen column. The invention is applicable to the coatings industry, in particular paints and adhesives.

Composition comprising silyl derivative as dehydrating agent

Compositions that can be polymerized and/or crosslinked into coatings by cationic and/or radical irradiation contain at least one photoinitiator and at least one compound having at least one isocyanate function.

Compositions polymerizable/crosslinkable by cationic/radical irradiation

Polyisocyanate coating compositions, the polyisocyanates of which include dimer structural units (patterns) and imino-trimer structural units (patterns), are converted, via cross-linking, into useful such coatings as paints or varnishes having enhanced shock-resistant properties, notably chip-resistant properties for vehicle body parts.

Polyisocyanate coating compositions cross-linkable into enhanced anti-shock coatings

The invention relates to a composition comprising at least one (poly)isocyanate and at least one surfactant comprising an amino acid and a mixture of compounds of formulae (I) and (II) wherein i and j independently represent 0 or 1; and Ret Rare identical or different and independently represent a hydrocarbonated chain. Said mixture of compounds of formulae (I) and (II) is characterized in that the molar ratio between compound (II) and compound (I) is higher than 1. 

Hydrophilic polyisocyanate compositions based on phosphate esters

The invention relates to the use of additived (poly)isocyanate compositions for producing coatings, especially paints or varnishes for car bodywork parts, said compositions having excellent impact-resistant properties, especially grit-resistant properties.

Polyisocyanate composition having improved impact-proof properties

The invention relates to a composition and a method of preparing one such composition and an isocyanatoalkoxysilane; the polyisocyanate composition contains at least two different oligomeric compounds comprising at least three units and at most five units selected from aminoalkylsilane units and diamine units and at least one function selected from isocyanate functions and from those derived therefrom, the aforementioned compounds having at least two aminoalkylsilane units and another compound having at least two diamine units; the invention is suitable for coatings.

Synthesis of biurets and isocyanates with alkoxysilane functions, formulations containing same and use thereof

The invention relates to a process for the synthesis of a polyisocyanate composition comprising acylureas. According to the invention, a starting composition comprising a compound having at least two isocyanate functional groups is subjected to a reaction with at least two acid functional groups, with at least one of the acid functional groups having a pKa value of less than or equal to 3, and at least one of the acid functional groups having a pKa value of more than 3 and less than or equal to 6, at a temperature at least equal to 50 &#xb0; C., wherein the acid functional group having a pKa value of less than or equal to 3 and the acid functional group having a pKa value of more than 3 and less than or equal to 6 are present on two different acids or on the same acid.

Synthesis of acylureas and composition comprising acylureas

A low viscosity polyisocyanate composition containing at least one isocyanate dimer having a uretidinedione unit is prepared from a reaction medium containing at least one isocyanate monomer in which the isocyanate groups are borne by spcarbon atoms. The reaction medium is heated, in the absence of a dimerization catalyst, to a temperature of at least 50&#xb0; C. and not more than 200&#xb0; C. for a period of not more than 24 hours.

Method for the preparation of low-viscosity (poly) isocyanates

The invention relates to a method for preparing polyhydroxy-urethanes without using a compound having an isocyanate function, and from amino compounds and compounds carrying carbonate functions, in particular cyclic carbonate functions. The invention also relates to a method for preparing aqueous or hydro-organic formulations containing polyhydroxy-urethanes, and to the use of said polyhydroxy-urethanes and of said aqueous or hydro-organic formulations.

Method for preparing polyhydroxy-urethanes

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Mornant, France

Jean-Marie Bernard