Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2005-05-03
2005-05-03
Sellers, Robert (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C252S609000, C525S480000, C525S523000, C528S398000, C549S219000, C568S017000
Reexamination Certificate
active
06887950
ABSTRACT:
A mixture of hydroxyarylphosphine oxides comprising (a) a mono(hydroxyaryl)phosphine oxide, (b) a bis(hydroxyaryl)phosphine oxide, (c) a tris((hydroxyaryl)phosphine oxide, and, optionally (d) a tri- aryl, alkyl, or aralkyl-substituted phosphine oxide combined with a phenolic co-crosslinking composition is useful as a polyhtdroxy mixture for co-crosslinking an epoxy resin which also imparts flame resistance.
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Edwards E. Bradley
Hanson Mark V.
Timberlake Larry D.
Ferrell Michael W.
PABU Services, Inc.
Sellers Robert
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