US PATENT SUBCLASS 525 / 453
.~.~.~ Solid polymer derived from -N=C=X reactant and polyhydroxy reactant


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}
452  DF  .~.~ Solid polymer derived from -N=C=X reactant (X is chalcogen) {1}
453.~.~.~ Solid polymer derived from -N=C=X reactant and polyhydroxy reactant {6}
454  DF  .~.~.~.~> Mixed with carboxylic acid or derivative reactant or polymer derived therefrom; or with heterocyclic reactant containing more than one heterocyclic ring; or polymer therefrom
455  DF  .~.~.~.~> Mixed with ethylenically unsaturated reactant or polymer therefrom
456  DF  .~.~.~.~> Mixed with aldehyde or aldehyde derivative reactant or polymer therefrom
457  DF  .~.~.~.~> Mixed with -N=C=X reactant or polymer therefrom {1}
459  DF  .~.~.~.~> Solid polymer derived from -N=C=X reactant and polyhydroxy reactant also derived from polyamine reactant
460  DF  .~.~.~.~> Solid polymer derived from -N=C=X reactant and polyhydroxy reactant derived from polyhydroxy reactant containing an ether group


DEFINITION

Classification: 525/453

Solid polymer derived from -N=C=X reactant and polyhydroxy reactant:

(under subclass 452) Subject matter wherein the solid polymer dericed fron a N=C=X or blocked N=C=X reactant is also derived from a polyhydroxy reactant.