US PATENT SUBCLASS 525 / 350
.~.~.~.~ Mercaptan or mercaptide


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  DF  .~.~.~ Chemical treating agent contains a sulfur atom {8}
350.~.~.~.~ Mercaptan or mercaptide


DEFINITION

Classification: 525/350

Mercaptan or mercaptide:

(under subclass 343) Subject matter wherein the chemical treating is performed in the presence of a mercaptan or mercaptide thereof.

(1) Note. A mercaptan denotes an organic compound having the general structure -C-SH wherein the carbon atom bound to the sulfur atom of the thiol group is not double bonded to oxygen, sulfur, selenium, or tellurium, or triple bonded to nitrogen.

(2) Note. A mercaptide denotes a salt of a mercaptan.