COMPOSITE SURFACING FILM WITH ULTRAVIOLET LIGHT AND ABRASION RESISTANCE
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United States of America Patent
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Issued Date -
Jul 26, 2012
app pub date -
Nov 9, 2007
filing date -
Nov 9, 2007
priority date (Note) -
Abandoned
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Abstract
The present invention is a one-part ultraviolet light and abrasion resistant pigmented surfacing film composition adapted for co-curing with an amine cured composite prepreg material using a chain extended base cycloaliphatic epoxy resin. The chain extended cycloaliphatic epoxy resin is formed through the pre-reaction of a base cycloaliphatic epoxy resin with a chain extension agent such as bisphenol and a high molecular weight elastomer in the presence of triphenyl phosphine to chain link the base cycloaliphatic epoxy resin to form a film formable cycloaliphatic resin prereact capable of low temperature curing when added to a latent amine based epoxy curing agent; an amine catalyst; at least one filler; at least one pigment; and a flow control agent to form surfacing film composition. The surfacing film composition adapted for co-curing with an amine curable composite from about 180° F. to about 350° F.
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