Modification of vinyl ester resins with reactive liquid polymers

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

1991-01-22

1993-03-30

Sellers, Robert E.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525530, 525532, 525119, 525922, 525911, C08F28300, C08G 5946

Patent

active

051985101

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 miscibilize 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 counterparts modified by known methods of adduction or admixing alone.

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