Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2011-01-11
2011-01-11
Sellers, Robert (Department: 1796)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C523S468000, C525S504000, C525S523000, C528S120000
Reexamination Certificate
active
07868067
ABSTRACT:
One aspect of the current invention is a halogen containing epoxy composition and a method of producing the same. A functional halogen group, fluorine in one case, is incorporated into an epoxy coating by using a functionalized amine curing agent in small amounts. Functionalized amine curing agents are cheaper and easier to produce from small amine precursors when compared to the cost and complexity of functionalizing bulky epoxy resins. Amine curing agents are incorporated into a cured epoxy network. However, many functional groups will affect the reactivity of the curing reaction due to electronegativity effects. By using small amounts of functionalized amines with a large amount of non-functionalized agent, the effect is small and in the case of migration, it can be advantageous for tribological, mechanical and other properties of epoxies and epoxy-containing materials. Additionally, in stratified coatings, it is advantageous to use smaller functionalized amine molecules that can migrate more quickly into the composition before the composition becomes fully cured.
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Bilyeu Bryan
Brostow Witold
Menard Kevin
Jackson Walker L.L.P.
Sellers Robert
University of North Texas
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