Patent ID: 7198741

Claim:
A method for manufacturing press molded bodies having at least two separate layers of material, comprising the steps of: providing a pair of cooperating parallel arranged rollers ( 1 , 2 ) defining a nip ( 3 ) therebetween and having cavities defined on their outer surfaces, each cavity on one of the rollers ( 1 , 2 ) cooperating with another cavity of the other roller ( 2 , 1 ) to form die means, the axes ( 4 , 5 ) of the rollers ( 1 , 2 ) being arranged substantially horizontally, feeding at least two contiguous separate streams of different particulate materials into die means adjacent to the nip ( 3 ), so that each die means will be filled with portions of different material, counter-rotating the rollers ( 1 , 2 ) so that the materials contained in the die means will be compressed into press molded bodies having at least two separate layers of material.