Patent ID: 8304080

Claim:
An uncured structure that is suitable for storage at ambient temperatures, said uncured structure comprising: a) a resin composition wherein said resin composition forms a cured resin when exposed to a curing agent and heated to a curing temperature that is higher than said ambient temperature, said resin composition comprising: a first non-crystalline component, said non-crystalline component including one or more non-crystalline thermosetting resins; a second non-crystalline component, said non-crystalline component including one or more non-crystalline thermosetting resins; and a crystalline component that comprises one or more crystalline thermosetting resins wherein said crystalline component is located between said first and second non-crystalline components to provide a zone that is rich in said one or more crystalline thermosetting resins and wherein said one or more crystalline thermosetting resins has a melting point that is above said ambient temperature and below said curing temperature and wherein the viscosity of said resin composition changes from a high viscosity state to a low viscosity state when the temperature of said resin composition is increased from said ambient temperature to said curing temperature; and b) a curative component comprising a curing agent for said resin composition; and c) a removable barrier located between said resin composition and said curing agent during storage of said uncured structure at said ambient temperatures.