Patent ID: 7252726
Filing Date: 2007-08-07
Classification: B29C,B32B,C08J,D06N

Abstract:
1. A method for preparing a fabric substantially consisting of carbon fibers for impregnation with a thermoplastic plastic, which method comprises the following steps of: (a) providing a fabric which substantially consists of carbon fibers with a coating of an epoxy material without curing agent; (b) bringing the fabric to a temperature in the range of 330° C. to 430° C. and holding the fabric at the temperature for 120 to 240 minutes such that the carbon fibers remain unaffected, the epoxy material is aged or neutralized and loses its tacky character and the epoxy material remains present on the carbon fibers; and (c) adhering a thermoplastic plastic to the aged or neutralized epoxy material.