Process for fracture toughening resins and resins produced...

Details Process for fracture toughening resins and resins produced... Process for fracture toughening resins and resins produced...

C - Chemistry, Metallurgy

08

G

400/5046

C08G 81/00 (2006.01) C08C 19/38 (2006.01) C08L 67/00 (2006.01)

Patent

CA 1152682

ABSTRACT OF THE DISCLOSURE A method for fracture toughening a resin which is cured by addition polymerization through its double bonds. A fracture toughening agent comprising an esterification product of a very low viscosity hydroxy-terminated polydiene and maleic anhydride is added to the resin. A process for in situ fracture toughening a resin is also disclosed. The cured resins show increased frac- ture toughness without a reduction in other mechanical properties, chemical resistance or heat distortion temperature.

361484

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