Patent ID: 6228432
Filing Date: 2001-05-08
Classification: B29B,B29C

Abstract:
An apparatus for the production of continuous composite materials by impregnating a fiber bundle with thermoplastic melt, comprising:a partially closed impregnating appliance, said impregnating appliance comprising:(i) at least one inlet for a fiber bundle to be impregnated;(ii) an outlet for the composite material;(iii) an impregnation passageway which connects the inlet to the outlet;(iv) at least one supply line for supplying thermoplastic melt to said appliance, said supply line opening into said impregnation passageway; and(v) a pair of movable shearing elements for applying mechanical energy to the thermoplastic melt in the impregnation passageway, said shearing elements comprising two closely adjacent toothed wheels which are freely rotatable or are provided with an external rotary drive and which around them and between them define said impregnation passageway in which mechanical energy is imparted to the thermoplastic melt, wherein said supply line for the thermoplastic melt opens in the outer circumference of at least one of said rotatable toothed wheels.