US PATENT SUBCLASS 525 / 428
.~.~.~.~.~.~ Contains amine-, N-C(=X)-, or N-S(=O)- containing reactant or polymer thereof (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}
418  DF  .~.~ Solid polymer derived from at least one carboxylic acid or derivative {3}
419  DF  .~.~.~ Solid polymer derived from at least one lactam; from an amino carboxylic acid or derivative; or from a polycarboxylic acid or derivative {3}
420  DF  .~.~.~.~ Solid polymer derived from an amino carboxylic acid or derivative; from a polyamine and a polycarboxylic acid or derivative; from at least one lactam; or from a polyamine salt of a polycarboxylic acid {14}
427  DF  .~.~.~.~.~ Mixed with aldehyde or aldehyde derivative reactant or polymer therefrom {2}
428.~.~.~.~.~.~ Contains amine-, N-C(=X)-, or N-S(=O)- containing reactant or polymer thereof (X is chalcogen)

DEFINITION

Classification: 525/428

Contains amine, N-C-, N-S-containing reactant or polymer thereof (X is chalcogen):

(under subclass 427) Subject matter which contains an amine, N, N-containing reactant (X is chalcogen) which is not in the solid polymer backbone or a polymer thereof.

(1) Note. The amine, N or N- containing reactant can be part of, or in addition to, the aldehyde or aldehyde derivative reactant.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, the Glossary, for a definition of the term "phenolic reactant".