Acrylic/Arkema

A. Riondel and J. Bessalem, Process for preparing butyl acrylate by direct esterification, US Patent 6 846 948, assigned to Arkema (Puteaux, FR), January 25, 2005. 

Arkema has recently issued patents on the gas-phase dehydration of glycerol to acrolein and on the oxidation of glycerol to acrylic acid [ 107]. The dehydration can be carried out at 300 ° C, with a Zr02/W03 catalyst the conversion of glycerol is total, and the yield to acrolein is 72%, when a feed made of an aqueous solution of glycerol (20%) is used. The addition of 02 in the feed stream has the effect of yielding also the formation of acrylic acid (4.5%), and of lowering the yield to acrolein. 

Coons R. Arkema finds glycerol-to-acrylic acid catalysts, demo-scale plant possible. Chem Week. 2009 171 36. 

In addition to the list, maleated polymers as coupling agents are produced by Arkema as Lotader series. They are not made by reactive extrusion. These compounds are terpolymers of ethylene, maleic anhydride and methyl, ethyl, or butyl acrylates. Acrylates make the compound rubbery and, therefore, reportedly decrease flexural modulus. 

CaUais P, Moskal M. Higher solids higher quality acrylic coatings resins. Available at www.arkema-inc.eom/literature/pdf/304.pdf. Accessed 2012 Mar. 

Vinyl foam containing acrylic process aid. [Data from Lavaiiee,p.R., World Patent W02011041195, Apr. 7,2Q, Arkema Inc.]... 

Arkema Biostrength M Acrylic core—shell Transparent 2-6 Transparent Films [124-130] ... 

Arkema (2013) LOTADER AX8900 Ethylene - Acrylic Ester - Glycidyl Methacrylate Terpolymer, http //www. lotryl. com/export/sites/lotryl/. content/ medias/downloadsAiterature/tds ... 

Arkema (2013) Acrylic Block Copolymers for Pressure Sensitive Adhesives, http //www.pstc.org/jiles/puhlic/ LehouvierDarcpdf (accessed 05 November 2013). 

Plexiglas Technology Acrylic Resins. Altuglas International (Arkema) 2005. 

PMMA/acrylic rubber MMA-SAN terpolymer/acrylic rubber Arkema-Altuglass Evonik Industries Plexiglas Cyrolite , XT Miscibility Miscibility Amorphous/ amorphous... 

Acrylic acid Existing 4.2 Arkema, Cargill/Novozymes Glycerol or glucose... 

A variety of commercial products specifically aimed at being used in filled polymers are available, notably from Arkema (Lotader and Orevac ), DuPont (Fusabond ), Westlake Chemicals (Epolene ), ExxonMobil (Exxelor ), and Crompton (Polybond ). The terminology used in this discussion is as follows acrylic acid grafted PE or PP=AA-g-PE or AA-g-PP maleic anhydride grafted = MA-g-PE or MA-g-PP. 

In some cases, copolymerization is used. Typical of the products made in this way are terpolymers of ethylene, n-butyl acrylate, and maleic anhydride, such as the Lotader products from Arkema, which have proved to be very good coupling agents in filled EVA copolymers. 

Arkema s Clearstrength 303H is a methyl methacrylate-butadiene-styrene modifier for unplasticised PVC. Rohm and Haas introduced an all-acrylic impact modifier, called Paraloid KM-348, to the American PVC market in 2001. It was claimed to perform well at lower dose levels than the competition, and was also intended to improve processing by lowering the melt temperature, die pressure and torque level. 

Arkema (when under its former name AtoFina) acquired the business interests of Metablen BV and changed the names of its MBS impact modifiers and its acrylic process aids. The impact modifiers once called Metablen are now called Clearstrength and the process aids are called Plastistrength. 

Early in 2004 AtoFina armoimced its intention to spin off its additives, together with its substantial PVC interests and its acrylics and engineering plastics businesses, to form a new division ( CIP , or Chlorochemicals, Intermediates and Performance products), employing around 19,000 people. The turnover was estimated at 5 bilhon euros, and the headquarters would be in Paris. The name of the new organisation has since been disclosed as Arkema. 

Recently, Arkema has introduced a BCP family to the market under the trade name Nmostrength These poly(methyl methacrylate)- -poly(butyl acrylate)- -poly (methyl methacrylate) polymers rely on the incompatibility between the blocks to generate useful assembled structures for fillers and rheological control, again in thermoplastic and composite applications. 

Acrylic acid represents a 4.5 million metric ton per year global market with BASF, Dow, and Arkema being major manufacturers [15]. AcryUc acid is manufactured by the oxidation of propylene. The reaction is a two-step process with oxidation to acrolein followed by further oxidation of the aldehyde to the carboxylic acid. Acrolein is a raw material for cosmetics, flavors, and pharmaceuticals. The major use of acrylic acid is as a monomer to make acrylic acid polymers and conversion to acrylate esters which are also used to make polymers. 

Blends of ethylene copolymers (such as ethylene-vinyl acetate, ethylene-ethyl acrylate, ethylene-acrylic acid copolymers) have been typically added to LDPE, HDPE and LLDPE to improve filler and additive acceptance, balance film properties, improve environmental stress crack resistance, tear resistance, toughness and surface properties. These blends are particularly prevalent in film formulations and as such are rarely disclosed by the manufacturer. Equistar has introduced functionalized polyolefins (Integrate ) to improve dispersion and adhesion in wood fiber filled and mineral filled polyolefin composites. Arkema Group offers Lotryl ethylene-acrylate (methyl, butyl and 2-ethyl hexyl) copolymers and notes the wide range of compatibility with other polyolefins as well as polyamides and polyesters. 

Adapted from GPS Safety Summary, Arkema-Acrylics-Ethyl Acrylate-2O12J09fi4r-V0,1-5. 

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