US PATENT SUBCLASS 525 / 343
.~.~.~ Chemical treating agent contains a sulfur atom


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}
55  DF  .~.~ At least one solid polymer derived from ethylenic reactants only {25}
343.~.~.~ Chemical treating agent contains a sulfur atom {8}
344  DF  .~.~.~.~> Inorganic sulfur compound contains sulfur atom bonded to at least two oxygen atoms
345  DF  .~.~.~.~> With peroxide, ozone, or free oxygen
346  DF  .~.~.~.~> With sulfur-free organic compound {1}
348  DF  .~.~.~.~> Sulfur-containing heterocyclic compound {1}
350  DF  .~.~.~.~> Mercaptan or mercaptide
351  DF  .~.~.~.~> Organic compound contains sulfur and nitrogen atoms {1}
353  DF  .~.~.~.~> Sulfur compound contains sulfur atom bonded to at least two oxygen atoms, e.g., sulfonate, etc.
354  DF  .~.~.~.~> Elemental sulfur or inorganic sulfur compound


DEFINITION

Classification: 525/343

Chemical treating agent contains a sulfur atom:

(under subclass 55) Subject matter wherein the chemical treating is performed in the presence of a sulfur-containing atom.