Uv resistant surfacing materials for composite parts
AssigneeCytec Industries Inc.
InventorsJunjie Jeffrey SANG, Dalip K. KOHLI
Life of this patent
Estimating the term…
Abstract
A surfacing material that can provide improved UV resistance while providing good surface properties. The surfacing material includes a resin layer formed from a curable resin composition containing: (A) one or more cycloaliphatic epoxy resin(s), each having two or more epoxy groups per molecule; (B) an epoxy-amine adduct having two or more epoxy groups per molecule and obtained by a reaction of (i) an epoxy compound having two or more alicyclic epoxy groups per molecule with (ii) an amine compound having two or more amino groups per molecule; (C) a curing agent and/or a catalyst; (D) ceramic microspheres; and (E) a flow control agent in the form of inorganic particles, which are not ceramic microspheres.
Claims22
1-41. (canceled)
A composite structure comprising:
- a composite substrate comprising reinforcement fibers and a curable matrix resin;
- and
- a surfacing material applied onto a surface of the composite substrate, wherein said surfacing material comprises a first curable resin layer comprising:
- (A) one or more cycloaliphatic epoxy resin(s), each having two or more epoxy groups per molecule;
- (B) an epoxy-amine adduct having two or more epoxy groups per molecule and obtained by a reaction of (i) an epoxy compound having two or more alicyclic epoxy groups per molecule with (ii) an amine compound having two or more amino groups per molecule;
- (C) curing agent and/or a catalyst;
- (D) ceramic microspheres;
- and
- (E) a flow control agent in the form of inorganic particles, which are not ceramic microspheres.
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Dependencies are inferred from the claim text.