Composition of bisphenol or novolak epoxy resin, epoxy resin...

Details Composition of bisphenol or novolak epoxy resin, epoxy resin... Composition of bisphenol or novolak epoxy resin, epoxy resin...

2005-04-05

2005-04-05

Sellers, Robert (Department: 1712)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C428S297400, C525S486000

Reexamination Certificate

active

06875825

ABSTRACT:
A composition useful as a matrix for fiber-reinforced composites possesses a viscosity at 25° C. of no more than 1000 mPa's, and provides a cured product displays a breaking elongation of at least 5%. The composition comprises (A) at least one of a bisphenol epoxy resin (A1) and a phenol novolak type epoxy resin (A2), a polyvalent epoxy resin formed from a mononuclear aromatic backbone (B), and an aromatic amine curing agent (C).

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