C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
403/54
C08J 9/10 (2006.01) C08G 59/38 (2006.01) C08L 63/00 (2006.01)
Patent
CA 1312174
Hot-foamable, thermosetting epoxy resin mixture Abstract Cured foams with a high degree of closed cellular structure, good stabil- ity under prolonged heat exposure and good compressive strength can be produced from a hot-foamable, thermosetting epoxy resin mixture contain- ing (a) an epoxy resin or a mixture of epoxy resins with an average epoxide content of 4.4 to 5.0 equivalents/kg and an average epoxide func- tionality of more than 2.0, (b) a novolak with a hydroxyl equivalent weight of 90 to 120, 0.8 to 0.95 hydroxyl equivalents of component (b) being present in the epoxy resin mixture per 1 epoxide equivalent of com- ponent (a), (c) 0.1 to 1% by weight, based on the amount of components (a) and (b), of a curing accelerator, (d) 0.5 to 10% by weight, based on the amount of components (a) and (b), of a blowing agent which splits off nitrogen above 100°C with decomposition, (e) 0.3 to 1% by weight, based on the total amount of the epoxy resin mixture, of an emulsifier, and if appropriate (f) foam modifiers.
566465
Fetherstonhaugh & Co.
Vantico Ag
LandOfFree
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