STORAGE-STABLE PREPREGS ON THE BASIS OF DUROPLASTIC, OLEOCHEMICAL MATRICES

摘要

The aim of the invention is to obtain prepregs on the basis of duroplastic, oleochemical matrices that can be stored at room temperature. To this end, a fiber material that preferably contains natural fibers is contacted with a matrix material at temperatures of 40 to 80 ~C in the presence of a suitable catalyst and the fiber material impregnated with the matrix is cooled to temperatures of 30 ~C and less. The matrix material is chosen from a fatty substance with at least 12 C atoms that contains epoxide and/or hydroxyl groups, a cross-linking agent and a catalyst, and the matrix material has a Brookfield viscosity of 600 to 1400 MPa at temperatures of 40 to 80 ~C.