Polymeric epoxy resin composition

摘要

The invention relates to a polymeric composition containing: a) at least one epoxy resin; b) at least one copolymer with groups, which react with epoxy resins, and with a glass transition temperature Tg of −20° C. or lower, c) nanoparticles having a mean particle size dmax ranging from 5 to 150 nm that is measured by means of a small-angle neutron scattering (SANS). The inventive composition enables the production of adhesives, composite materials, coatings and casting compounds exhibiting improved mechanical properties, particularly improve impact strength.

主权项

1. A polymeric composition comprising:
a) at least one epoxy resin, b) at least one copolymer having epoxide-reactive groups and a glass transition temperature Tg of −20° C. or less, c) nanoparticles having an average particle size dmax as measured by means of small-angle neutron scattering of 5 to 40 nm, wherein when the composition is cured, the copolymer forms rubber domains having an average size of 0.05 to 20 μm.