초록 ▼

A method for the manufacture in a continuous process of a flat substrate from a fibres-reinforced matrix for a printed circuit, in which use is made of at least two moving layers of reinforcing fibres and the fibres are positioned in at least two crossing directions, whereupon the filaments layers p

A method for the manufacture in a continuous process of a flat substrate from a fibres-reinforced matrix for a printed circuit, in which use is made of at least two moving layers of reinforcing fibres and the fibres are positioned in at least two crossing directions, whereupon the filaments layers provided with matrix material, optionally together with one or more electrical conducting layers, such as a metal foil, and/or insulating layers on one or on either outer side, are passed through a preferably heated laminating zone, such as a double belt press, characterized in that use is made of filaments-containing layers made up of a plurality of mutually parallel filaments that are not bonded in the form of a fabric and extend substantially linearly.

대표청구항 ▼

A continuous process for the manufacture of a printed wire board from a fiber-reinforced matrix, the continuous process comprising a laying stage in which at least two layers of wholly unbonded unwoven threads of reinforcing fibers are superposed and laid on a transport element moving in a plane con

A continuous process for the manufacture of a printed wire board from a fiber-reinforced matrix, the continuous process comprising a laying stage in which at least two layers of wholly unbonded unwoven threads of reinforcing fibers are superposed and laid on a transport element moving in a plane continuously in a production direction, an impregnation stage in which the layers of threads are passed through an impregnating zone to provide the layers with matrix material and a lamination stage in which the layers of threads are passed through a laminating zone to form a laminate of the layers of threads provided with matrix material, the laminate being provided on one side or on both sides with means for generating electrically conductive tracks, said layers of threads being composed of a plurality of mutually parallel threads of reinforcing fibers which extend substantially rectilinearly, and the layers are superposed such that reinforcing fibers are disposed in at least two crossing directions while remaining wholly unbonded.