Patent ID: 9725567
Date: 2017-08-08
CPC Classifications: C08G,C08J,C08L

Claim:
1. A resin composition for forming a thermosetting surfacing film, the composition comprising: a resin component comprising one or more epoxy resins selected from a liquid resin, a solid resin, a semi-solid resin and a combination thereof; from about 1% to about 20% (by weight of the total composition) of a carboxylic acid functionalized polymer having an average functionality of about 2 or more carboxylic acids prior to reacting said polymer with said resin component; from about 2% to less than 25% (by weight of the total composition), with or without an organic surface treatment, of a filler material, comprising 2 or more fillers and optionally one or more pigments, wherein the first filler has a mean primary particle size of from about 5 nm to about 60 nm and is present in said composition in an amount of from about 1% to about 10% (by weight of the total composition), and the second filler is different from the first filler and has a mean primary particle size of about 1 to about 30 microns, said resin composition having a viscosity of less than about 100 Pa·s at 71° C., and being free of solvent.