US PATENT SUBCLASS 525 / 528
.~.~.~ Mixed with -N=C=X-containing 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}
523  DF  .~.~ Solid polymer contains more than one 1,2-epoxy group or is derived from reactant containing at least one 1,2-epoxy group {4}
528.~.~.~ Mixed with -N=C=X-containing reactant or polymer therefrom

DEFINITION

Classification: 525/528

Mixed with -N=C=X-containing reactant or polymer therefrom:

(under subclass 523) Subject matter wherein a solid polymer containing more than one 1,2-epoxy group or derived from

reactant containing at least one 1,2-epoxy group is mixed with an -N=C=X-containing reactant or polymer derived therefrom (X is chalcogen).