Acrylic thermosets prepared by dual curing at room temperature fit for coatings and adhesives

Summary of the technology

Formulations for the preparation of thermosets by dual curing, at room temperature in two stages, stable over time, from the reaction of amine compounds with 2 or more N-H bonds with a vinyl compounds with a minimum of 2 double α, β- conjugated bonds to carbonyl ester groups and further polymerization of vinyl groups in excess, with completely controlled characteristics of the material at the intermediate stage.

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New and innovative aspects

  • Very versatile procedure that allows the production of materials ranging from elastomers to thermosets.
  • Process controlled in two stages through different chemistries of the two processes and through the composition of the formulation.
  • The second stage of curing is not inhibited by the effect of oxygen present in the air, facilitating their use in batch processes and drastically reducing rejected products as a result of impaired quality of the material.
  • The curing system allows the application on thermosensitive substrates

Main advantages of its use

  • Getting completely crosslinked non-sticky materials or changeable over time at the end of curing.
  • Obtaining stable materials at the end of the first curing step, which can be stored before they reach their final properties in the second stage of curing.
  • Energetically favorable curing conditions since it can be carried out at room temperature.
  • No VOCs (Volatile Organic Compounds) evolved during curing.


  • The curing of the formulations is done in two different steps and can be performed at room temperature. The first stage consists in the addition of non-aromatic amines or polyamines to vinyl compounds conjugated to electronwithdrawing groups by an aza-Michael addition. The second stage, vinyl polymerization thermally or photochemically induced, is not inhibited by the oxygen in the atmosphere, allowing its application in discontinuous manufacturing processes and reaching highly crosslinked materials.


  • Application for adhesives, coatings, manufacturing

Related Keywords

  • Organic Substances
  • Coatings
  • Adhesives
  • Surface treatment (painting, galvano, polishing, CVD, PVD)
  • Plastics and Rubber related to Chemical Technology and engineering
  • Coatings and adhesives manufactures
  • Industrial chemicals
  • Polymer (plastics) materials
  • thermosets
  • acrylate
  • amine
  • dual curing

About Fundació URV

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