Patent ID: 7867568

Claim:
Continuous pultrusion process for producing structural profiles wherein a) one or more textile sheets are impregnated with a resin composition comprising a combination of (i) at least one epoxy resin which is a tri- or tetrafunctional epoxy resin, and (ii) a curing agent system comprising at least two types of reactive groups of different reactivity, b) the impregnated textile sheets are subjected to heat to cause a partial reaction between the at least one epoxy resin and the curing agent system, so that the viscosity of the resin composition is increased, wherein the initial viscosity is in the range of between 10 and 500 mPa·s and is increased in a controlled manner by a factor of between 5 and 200, while the degree of crosslinking is limited to a degree of curing in the range of between 0% and 10%, and c) the partially reacted impregnated resin composition is gelled using heat and/or pressure.