Storage-stability additives for unsaturated thermosettable resins
AssigneeThe Dow Chemical Company
InventorPaul L. Wykowski
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Abstract
Storage stable thermosettable ethylenically unsaturated resins containing at least one 1,4-naphthoquinone substituted on the 2 or 3 or both the 2 and 3 positions. The reactivity of these storage stable resins with curing agents is not unacceptably reduced by the presence of the stabilizer. The compositions are useful in the preparation of laminates or composites and in filament winding pultrusion, braiding and resin transfer molding applications.
Claims8
A storage stable thermosettable ethylenically unsaturated resin composition comprising (1) at least one vinyl ester resin resulting from reacting a polyepoxide with an unsaturated monocarboxylic acid;
- and (2) at least one 1,4-naphthoquinone substituted on the 2 or 3 or both the 2 and 3 positions with a Cl, Br, nitro or cyano substituent;
- wherein component (2) is present in an amount of from about 5 to about 20,000 parts per million parts by weight based upon the combined weight of components (1) and (2).
Dependencies are inferred from the claim text.