Elf Atochem S.a.

Atofina

Arkema France

Arkema Inc.

Arkema France (formerly Atofina)

Alain F Riondel

Marc Esch

Gilles Herbst

Coralie Graire

Jean-Michel Paul

Vladimir Chaplinski

Serge Tretjak

Reinhard Linemann

Andre Levray

Jacqueline Bessalem

Frank Cogordan

Michel Camail

Andre Margaillan

Denis Tembou N'Zudie

Marie Humbert

Jean-Louis Vernet

Herve W Ozeray

Rosangela Pirri

Sylvain Rault

Gregory A Delmas

Patricia Beurdeley

Michael Kurczak

Robert Legros

Jerome Mazajczyk

Peter Meyer

Clement Becker

Andr E Levray

Fabrice Castellani

Emile Harlay

Cecile Chaineau

Thierry Druzkowski

Didier Vanhoye

Thomas Jeanmaire

Eric Jouandon

Eric Delaunay

Fr&eacute;d&eacute;ric Fabis

Hervé Ozeray

Emilie Harlay

Cécile Chaineau

Jérôme Mazajczyk

Grégory Delmas

André Levray

The present invention relates to aqueous alkyd resin dispersions comprising a) a short oil alkyd resin comprising, in its fatty acid component a1), at least one polyunsaturated fatty monoacid a11) having at least two unsaturations per molecule and comprising at least 35% by weight of a monoacid a111) having conjugated unsaturations, the content by weight of said fatty monoacid a111), with respect to said alkyd resin, being at least 5%, preferably from 5% to 40% and more preferably from 5% to 35%, and b) at least one anionic phosphate surfactant. The invention also covers a preparation process and its use in decorative coatings. The coatings based on these aqueous dispersions exhibit improved performance qualities in resistance to blocking and yellowing, in development of hardness and in gloss.

Aqueous alkyd dispersions with improved application performances in terms of resistance to blocking and yellowing, hardness development and shine

The present invention relates to a linear or branched structured hydroxylated or carboxylated polyester resin that is free of unsaturated fatty acids, that is made from an acid component and an alcohol component, said acid component comprising at least one C4 to C6 carboxylic polyacid or anhydride, and at least one C5 to C54 carboxylic polyacid or anhydride, and with said alcohol component comprising at least one biobased polyol having a functionality of at least 2 bearing a 1,4:3,6-dianhydrohexitol unit, and at least one of two polyols b2) and b3).

Biobased hydroxyl or carboxyl polyester resins

The invention relates to the production of alkyl acrylate according to a continuous transesterification process. In one embodiment the process of the invention uses a simple column to purify a reaction mixture of acryl acrylate in one step yielding alkyl acrylate with a purity of greater than 99.8%.

Process for producing alkyl acrylate

The present invention relates to a method for preparing a linear or branched hydroxylated and/or carboxylated polyester resin that is free of unsaturated fatty acids, comprising reacting an acid component with an alcohol component, said acid component comprising at least one C4 to C6 polycarboxylic acid or anhydride, and at least one C8 to C54 polycarboxylic acid or anhydride, and said alcohol component comprising at least one biobased polyol having a functionality of at least 2 bearing a 1,4:3,6-dianhydrohexitol unit, and at least one of two polyols b2) and b3).

Specific method for preparing biobased polyesters

The invention relates to the industrial production of highly pure 2-propylheptyl acrylate with a high yield according to a process by transesterification, preferably in semi-continuous mode. The process according to the invention uses ethyl titanate in solution in 2-propylheptanol or 2-propylheptyl titanate as transesterification catalyst, and implements a purification sequence comprising a single distillation column and a film evaporator.

Process for producing 2-propylheptyl acrylate by transesterification

The invention relates to a process for continuously producing 2-octyl acrylate by reacting acrylic acid and 2-octanol in the presence of a sulfonic acid esterification catalyst and at least one polymerization inhibitor. The water formed by the esterification reaction is entrained by distillation in a column surmounting the reactor in the form of a heteroazeotropic mixture with the 2-octanol which is then subjected, after condensation, to separation in a decanter so as to give an upper organic phase and a lower aqueous phase. The reaction mixture containing the reaction product and residual by-products are purified by separation means in order to obtain: (1) pure 2-octyl acrylate and (2) unreacted 2-octanol and acrylic acid compounds that will be recycled along with the catalyst.

Method for producing 2-octyl acrylate by direct esterification

The invention relates to the production of 2-octyl acrylate of high purity and in good yield, that includes the recycling of economically upgradable products, such as un-reacted reactants and catalyst. The process uses ethyl titanate in solution in 2-octanol or 2-octyl titanate as a tranesterification catalyst and employs a purification train comprising only two distillation columns.

Method for the production of 2-octyl acrylate by means of transesterification

The invention relates to the production of 2-octylacrylate of high purity and in good yield using ethyl titanate in solution in 2-octanol or 2-octyl titanate as a transesterification catalyst.

The invention relates to special (methyl)acrylaic monomers and concerns more particularly an enhanced process for preparing solutions of alkylimiozolidone (meth)acrylates in water solutions of alkylimidazolidone (meth)acrylates in a light (meth)acrylate.

Preparation of alkylimidazolidone (meth)acrylates in water

The invention concerns a method for making aqueous solutions of unsaturated quaternary ammonium salts of formula (I) by reacting, in the presence of water, N,N-dimethylaminoethyl acrylate with a quaternizing agent of formula (II): R&#x2014;Cl, said method is characterized in that it consists in: (a) in a closed reactor containing 5 60 wt. % of N,N-dimethylaminoethyl acrylate required for the reaction and which has been pressurized with air or depleted air at 0.5 to 3 bars, carrying out the reaction by continuously introducing, at a temperature ranging between 35 to 65&#xb0; C., the quaternizing agent (II), and water, and finally the remaining N,N-dimethylaminoethyl acrylate, until the desired concentration of salt (I) in the water is reached, the water being introduced only when 0&#x2013;20 wt. % of the amount required for the quaternizing agent (II) reaction has been added; the introduction of the remaining N,N-dimethylaminoethyl acrylate starting only when 20&#x2013;80 wt. % required for the quaternizing agent (II) reaction has been added; and the pressure at the end of the reaction capable of reaching 9 bars; then (b) in depressurizing while maintaining the oxygen content constant by simultaneous introduction of air and, after returning to atmospheric pressure, eliminating the residual quaternizing agent. In formule (I) and (II). R=methyl or benzyl.

Method for making aqueous solutions of unsaturated quaternary ammonium salts

This process for the manufacture of an aqueous solution of (meth)acryloyloxyethylbenzyl-dimethylammonium chloride ((M)ADAMQUAT BZ) by reaction, in the presence of water, of N,N-dimethylaminoethyl (meth)acrylate ((M)ADAME) with benzyl chloride is characterized in that the reaction is carried out continuously in a reactor operating according to the perfectly stirred reactor technology.

Method for making aqueous solutions of (meth)acryloyloxyethylbenzyldimethylammonium chlorides

2-Ethylhexyl acrylate is manufactured according to a process for the direct esterification of acrylic acid with 2-ethylhexanol catalysed by sulphuric acid, the acrylic acid subjected to the esterification being stabilized by at least one stabilizing agent, the said esterification being followed by the neutralization by a base of the crude reaction mixture (B1) obtained, the resulting salts passing into the aqueous phase (A1) of the said mixture, the organic phase (O1) and the aqueous phase (A1) resulting from this neutralization being separated and the 2-ethylhexyl acrylate being recovered from the organic phase (O1). To suppress the emulsions which appear during the said neutralization, the stabilizer or stabilizers of acrylic acid is/are chosen with the exclusion of hydroquinone, in the absence of which the aqueous phase of the process is stabilized before and/or during the neutralization.

Process for the manufacture of 2-ethylhexyl acrylate

The invention relates to compounds of formula (I), prepared by quaternising a compound (II) by means of at least one compound R&#x2014;X:R=H or &#x2014;CH; R=&#x2014;CH; &#x2014;CH; &#x2014;CHor &#x2014;CH; and compound (I) is optionally quaternised on one of the nitrogens, which is symbolised by the fact that the R, Xand &#x2295; associated with this nitrogen are shown between brackets; if compound (I) is quaternised on a single nitrogen, Rand Xhave the following meanings: (1) R=&#x2014;CHor &#x2014;CHCH; and X=Clor CHOSO; or (2) R=a C-C-alkyl group; and X=Bror I; if compound (I) is quaternised on both nitrogens, the two Xmay be the same or different and the two Rmay be the same, in which case: (3) R=a C-Calkyl group; and X=CHOSO, Bror I; or different, in which case: (4) one of the R=&#x2014;CHor &#x2014;CHCH; and X=Clor CHOSO; and the other=a C-C-alkyl group; and X=Bror I.

Monomers with quaternary amino groups, methods for making same, and novel (co)polymers obtained from said novel monomers

Butyl acrylate is prepared by reacting acrylic acid and butanol in a reactor in the presence of an esterification catalyst the water formed being entrained by distillation in a column () in the form of a heteroazeotropic mixture with butanol mixture following condensation, being separated in a decanter () to give an upper, organic phase which is recycled to the top of the distillation column () and a lower, aqueous phase which is drawn off. The reaction is conducted with deferred introduction of part of the butanol at the top of the distillation column () or to the decanter () or to the reactor (), the butanol/acrylic acid molar ratio being initially between 0.5 and 1 before rising to between 1 and 1.5 following the completion of the deferred introduction of the butanol.

Process for preparing butyl acrylate by direct esterification

Process for preparing a compound (I) by reacting a compound of formula (II) with the alcohol (III). The reaction is carried out using dibutyltin oxide as transesterification catalyst.

Process for preparing 2-(dimethylamino)-1-(dimethyl-aminomethyl) ethyl meth (acrylate)

Growing community of inventors

Saint Pathus, France

Alain F Riondel