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0304-7-abs - PERP Program Maleic Anhydride New Report Alert...

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PERP Program – Maleic Anhydride - New Report Alert April 2005 Nexant’s ChemSystems Process Evaluation/Research Planning (PERP) program has published a new report, Maleic Anhydride (03/04-7) . To view the table of contents or order this report, please click on the link below: http://www.nexant.com/products/csreports/index.asp?body=http://www.chemsystems.com/reports/show_cat.cfm?catID=2 Uses Maleic anhydride (MAN) is a versatile molecule that lends itself to many applications requiring multifunctionality. With three active sites (two carboxyl groups and one double bond), it is an excellent joining and cross-linking agent. The broad range of derivatives is shown in Figure 1. Starting at the top of Figure 1 and moving clockwise, a description of major maleic anhydride chemistries and derivatives now follows: The catalytic hydration of maleic anhydride yields malic acid – an important acidulant in the food and personal care industry. The catalytic hydrogenation of maleic anhydride yields succinic anhydride which can be hydrolyzed to the acid. Esters of succinic acid are used in the agrichemicals industry. The reaction of maleic anhydride with phthalic anhydride with propylene glycol yields a commodity unsaturated polyester resin which is usually dissolved in styrene for use in reinforced compounds, artificial marble, etc. The Diels Alder addition of maleic anhydride with polyisobutylenes yields succinimides which form key components in lubricant additives when reacted with polyamines, etc. Maleic anhydride copolymers with styrene, ethylene vinyl acetate, etc, serve a number of niche market segments for adhesives, coatings, anti-fouling agents, etc. Polysuccinimides and polyaspartic acid are newer developments targeted at detergent and anti- corrosion applications. Butanediol and derivatives represent the outlet for unrefined maleic anhydride supporting downstream industries such as engineering polymers, spandex fibers, solvents and specialties.
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- 2 - Figure 1 Maleic Anhydride Derivative Tree Tartaric Acid Aspartic Acid Fumaric Acid Maleic Acid Succinate Esters Succinic Acid Succinic Anhydride Malic Acid Diisobutyl Hexahydrophthalic Anhydride Tetrahydrophthalic Anhydride Compounds Lubricant Additives Unsaturated Polyesters
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