US PATENT SUBCLASS 525 / 495
.~.~.~.~ Additional material is amine-, N-C(=X)-, or N-S(=O)-containing reactant- aldehyde or -aldehyde derivative polymer, condensate, or reactants therefrom (X is chalcogen)

Current as of: June, 1999
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525 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {4}
50  DF  .~ MIXING OF TWO OR MORE SOLID POLYMERS; MIXING OF SOLID POLYMER OR SICP WITH SICP OR SPFI; MIXING OF SICP WITH AN ETHYLENIC AGENT; MIXING OF SOLID POLYMER WITH A CHEMICAL TREATING OR ETHYLENIC AGENT; OR PROCESSES OF FORMING OR REACTING; OR THE RESULTANT PRODUCT OF ANY OF THE ABOVE OPERATIONS {32}
480  DF  .~.~ Solid polymer or specified intermediate condensation product derived from at least one phenolic reactant and at least one aldehyde or aldehyde-type reactant or polymer therefrom {10}
491  DF  .~.~.~ Mixed with additional aldehyde or aldehyde-type reactants which are part of a SPFI system or polymer thereof {5}
495.~.~.~.~ Additional material is amine-, N-C(=X)-, or N-S(=O)-containing reactant- aldehyde or -aldehyde derivative polymer, condensate, or reactants therefrom (X is chalcogen) {4}
496  DF  .~.~.~.~.~> Contains 1,2-epoxy-containing reactant or polymer derived therefrom
497  DF  .~.~.~.~.~> Heterocyclic nitrogen reactant or polymer therefrom, e.g., melamine, etc.
498  DF  .~.~.~.~.~> -N-C(=X)-N-containing reactant or polymer, e.g., urea, etc. (X is chalcogen)
499  DF  .~.~.~.~.~> Contains sulfur reactant or polymer therefrom

DEFINITION

Classification: 525/495

Additional material is amine-, N-C- or N-S- containing reactant -aldehyde or -aldehyde derivative polymer, condensate, or reactants therefrom (X is chalcogen):

(under subclass 491) Subject matter wherein the additional material is an amine and/N or N- containing reactant aldehyde oraldehyde-type polymer, condensate, or reactants (X is chalcogen).