Patent ID: 8501309
Filing Date: 2013-08-06
Classification: C08G,Y10T

Abstract:
1. A tack-free uncured assembly for curing at a cure temperature, said uncured assembly comprising: a fibrous reinforcement layer comprising a fibrous web; and a sintered material formed by sintering a powdered blend applied to the fibrous reinforcement layer, the powdered blend comprising a powdered amine-terminated epoxy resin of particles comprising an amine-terminated epoxy resin and a powdered epoxy resin of particles comprising an epoxy-terminated epoxy resin, the sintered material being present in the range of 20 to 50 weight percent of the tack-free uncured assembly; wherein said sintering causes the particles of the powdered amine-terminated epoxy resin and the particles of the powdered epoxy resin to adhere to each other and to the fibrous reinforcement layer, resulting in the tack-free uncured assembly; and wherein said sintered material is capable of melting and mixing within the fibrous web at said cure temperature.