Patent ID: 9725563
Date: 2017-08-08
CPC Classifications: C08J

Claim:
1. A method of making a fiber-reinforced epoxy composite, the method comprising: applying a sizing composition to a plurality of fibers to make sized fibers, wherein the sizing composition comprises at least one of a curing agent chosen from at least one of an aliphatic polyamine, a cycloaliphatic polyamine, an aromatic polyamine, a polyamide, an amidoamine, a polyol, an acid anhydride, dicyandiamide, guanidine, and a formaldehyde resin; contacting the sized fibers with an epoxy resin composition to form a resin-fiber amalgam, wherein the epoxy resin composition includes 50 wt. % to 5 wt. % of an amount of the curing agent present in the resin-fiber amalgam; and curing the resin-fiber amalgam to form the fiber-reinforced epoxy composite.