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Ensinger PEI
Milliken® DDSA (TPSA) Tetrapropenyl Succinic Anhydride
Categories: Fluid

Material Notes: DDSA (Dodecenyl Succinic Anhydride) or more accurately called TPSA is a liquid mixture of several isomeric alkenyl succinic anhydrides. It is the product resulting from the reaction between a hydrocarbon distillate and maleic anhydride. The hydrocarbon distillate is predominantly the C12 branched-olefin derived from propylene tetramer. The large alkenyl side chain and the mixture resulting from the higher and lower fractions in the distillate give a liquid product. Side chain unsaturation is retained in the “ene” reaction, therefore TPSA undergoes all the reactions typical for an internal double bond as well as those of a carboxylic anhydride.

Uses and Applications:

  • Resin Intermediate- Increases flexibility in paints, lacquers, and drying oils- Increases resin toughness over maleic anhydride alone
  • Corrosion Inhibitor- Water scavenger in lubricants and greases- Anticorrosion agent and water remover in fuels
  • Curing Agent for Epoxy Resins- Increases flexibility while reducing shrinkage- Improves dielectric performance in electronic potting
  • Chemical Intermediate- Precursor in surfactant and wetting agent formation- Starch modifier in cellulose ester preparation

    Information provided by Milliken®

Available Properties
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Master Bond adhesives
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