Modification of vinyl ester resins with reactive liquid...

Details Modification of vinyl ester resins with reactive liquid... Modification of vinyl ester resins with reactive liquid...

C - Chemistry, Metallurgy

08

L

400/4008

C08L 63/10 (2006.01) C08F 36/04 (2006.01) C08L 63/00 (2006.01)

Patent

CA 2035152

ABSTRACT Vinyl ester resins of the type already having reactive liquid polymers reacted into the backbone of the resins, are cured in the presence of a reactive liquid polymer additive admixed with the prereacted vinyl ester resin. Heating of the system during cure causes the reactive liquid polymer additive to mis- cibilize with the vinyl ester base resin. The vinyl ester resin modified in the manner described above shows a significant enhancement in toughness as measured by fracture energy over unmodified counterparts or counter- parts modified by known methods of adduction or admixing alone.

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