Epoxy novolac resins having a narrow molecular weight...

Details Epoxy novolac resins having a narrow molecular weight... Epoxy novolac resins having a narrow molecular weight...

C - Chemistry, Metallurgy

08

G

402/43

C08G 59/04 (2006.01) C08G 59/50 (2006.01) C08J 3/00 (2006.01)

Patent

CA 1038994

ABSTRACT Epoxy novolac resins having a narrow molecular weight distribution are prepared by dissolving an epoxy novolac resin prepared by conventional means in a suitable solvent such as xylene, cooling below 50°C until separation into 2 phases occurs, separating the two phases and removing the solvent therefrom thereby producing a resin of relatively low molecular weight and a resin of relatively high molecular weight wherein each resin has a narrow molecular weight distribution.

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