Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1992-05-26
1994-01-18
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525113, 525114, 525118, 525119, 525120, 525121, 525122, 525502, 528103, 528111, 528112, 528113, 528114, 528115, 528120, 528123, 528393, C08F 808, C08G 6502, C08G 830
Patent
active
052800687
ABSTRACT:
Curable epoxy resins are toughened with statistical monofunctional carboxyl, amine or epoxy terminated reactive polymers and have low viscosities before cure thereby making them useful in a wide range of applications. The cured epoxy resin systems which are modified by the statistical monofunctional reactive polymers have physical properties, such as adhesion and elongation, generally equal to or better than those of cured epoxy resin systems modified with statistical difunctional reactive polymers. A process of preparation for the modified epoxy resin systems of the present invention includes admixing an epoxy resin with a statistical monofunctional carboxyl, amine, or epoxy-terminated reactive polymer in the presence of a curing agent and reaction therewith to form the toughened, cured epoxy resin system.
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Bertsch Robert J.
Siebert Alan R.
Cooney Jr. John M.
Kight III John
Moxon II George W.
Pawl Debra L.
The B.F. Goodrich Company
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