US PATENT SUBCLASS 525 / 519
.~.~.~ Mixed with carboxylic acid or derivative reactant or polymer therefrom

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}
509  DF  .~.~ Solid polymer or SICP derived from at least one amine-, N-C(=X)- or N-S(=O) containing reactant and at least one aldehyde or aldehyde-type reactant (X is chalcogen) {5}
519.~.~.~ Mixed with carboxylic acid or derivative reactant or polymer therefrom {1}
520  DF  .~.~.~.~> Contains -N=C=X reactant or polymer therefrom (X is chalcogen)

DEFINITION

Classification: 525/519

Mixed with carboxylic acid or derivative reactant or polymer therefrom:

(under subclass 509) Subject matter wherein a solid polymer or specified intermediate condensation product derived from at least one amine-, N or N- containing reactant and at least one aldehyde or aldehyde-type reactant is mixed with a carboxylic acid or derivative or polymer derived therefrom (X is chalcogen).