Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1993-01-06
1995-02-28
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525112, 525530, 525532, 525911, 525922, 528100, 5281113, 528113, 428 357, C08F28300
Patent
active
053938500
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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"The Chemistry of Rubber-Tougened Epoxy Resin" By: A. R. Siebert and C. K. Riew.
"Hycar R Reactive Liquid Polymers" Feb. 1990, By: BFGoodrich Company Chemical Group, Cleveland, Ohio.
Guiley C. Dale
Siebert Alan R.
Gulakowski Randy
Marquis Melvyn I.
Moxon II George W.
Pawl Debra L.
The B. F. Goodrich Company
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