Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1987-09-21
1989-03-14
Bleutge, John C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525119, 525121, 525122, C08L 1100, C08L 902, C08L 3326, C08L 6302
Patent
active
048125210
ABSTRACT:
Epoxy and epoxy novolak resins are impact modified by adding an effective amount of an acrylamide diene nitrile rubber terpolymer to the resin. In a preferred embodiment, the acrylamide diene nitrile rubber includes an acid or ester group attached to the acrylamide portion of the polymer generally through a thiol group. The liquid terpolymer is reacted in the presence of acid catalysts with the resin to provide impact modification.
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F. J. McGarry et al: "Crack Toughened Epoxy Resin Formulations" American Chemical Society, vol. 28 #1, 4/68, 512-525.
F. J. McGarry et al: "Toughening of an Epoxy Resin by an Elastomeric Second Phase" Research Report R68-8, 3/68.
Bleutge John C.
Eagle-Picher Industries, Inc.
Sellers Robert E. L.
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