Patent ID: 9096734
Filing Date: 2015-08-04
Classification: B29B,C08J,Y10T

Abstract:
1. A method for making a composite part comprising the steps of: providing a fibrous element comprising a first side and a second side; applying a sheet of resin as a single entity to the first side of said fibrous element, said sheet of resin comprising a flat side and a notched side, said flat side being located on the first side of said fibrous element and said notched side having alternating upper resin surfaces and lower resin surfaces; said sheet of resin comprising a plurality of resin elements consisting of parallel lines of one or more thermosetting resins that are separated from each other by a resin barrier zone comprising a penetrable barrier material wherein said resin elements extend between the flat side of said sheet of resin and the upper resin surfaces, said sheet of resin further comprising resin bridges which extend across said resin barrier zones at the flat side of said sheet of resin to form partially closed resin hairier zones that are partially filled with said penetrable barrier material, said resin bridges providing connections between said resin elements along the flat side of said sheet of resin, said resin bridges consisting of one or more thermosetting resins and each of said resin bridges having a thickness extending between the flat side of said sheet of resin and one of said lower resin surfaces; applying one or more curative elements consisting of one or more curatives for said one or more thermosetting resins to said fibrous element, said curative elements being located on the second side of said fibrous element; and curing said sheet of resin to form said composite part wherein said thickness of said resin bridges is such that said resin bridges flow during curing into said fibrous element in order to open the partially closed resin barrier zones to form a gas venting network which provides multi-dimensional escape of gas during curing of said sheet of resin.