Patent ID: 9174394
Filing Date: 2015-11-03
Classification: B29C,C08J,Y10T

Abstract:
1. A modified prepreg wherein regions of cured ink are located on uncured thermosetting resin that forms the uncured surface of a prepreg in order to reduce the porosity of laminates made from said prepreg, said prepreg comprising: a prepreg comprising a layer of fibers and an uncured matrix, said uncured matrix comprising uncured thermosetting resin wherein said prepreg comprises an outer uncured fibre-free surface that is formed by said uncured thermosetting resin; and a plurality of hardened fibre-free raised regions of cured ink that are located on top of said outer uncured fibre-free surface, said regions of cured ink having a thickness that extends a height above said outer uncured fibre-free surface wherein the thickness of said regions of cured ink is from 10 to 100 micrometers.