Patent ID: 9267018
Filing Date: 2016-02-23
CPC Classification: B29B,B29C,B29K,C08K,C08L

Claim Text:
1. A process for making an epoxy composite comprising a particulate filler and having an ultimate stress under compression of greater than or equal to 100 MPa and a density of less than about 0.7 g/cc and an equilibrium water absorption at 100 MPa and 20° C. of less than about 0.5%, said process comprising: (a) combining an epoxy prepolymer, a curing agent and the particulate filler to form a curable mixture; (b) agitating the mixture under a non-air atmosphere to render it substantially homogeneous; (c) applying pressure to the mixture to reduce or eliminate gas pockets in the mixture; and (d) maintaining the pressure until the curable mixture is cured to form the epoxy composite.