US PATENT SUBCLASS 525 / 270
.~.~.~.~.~.~ With nonmetal, nonhydrocarbon compound


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



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}
242  DF  .~.~.~ Polymer derived from ethylenic reactants only mixed with ethylenic reactant {21}
267  DF  .~.~.~.~ Including step of preparing a polymer in the presence of a specified material and in the absence of a preformed polymer derived from ethylenic reactant only {3}
268  DF  .~.~.~.~.~ Specified material contains a transition metal atom {2}
270.~.~.~.~.~.~ With nonmetal, nonhydrocarbon compound


DEFINITION

Classification: 525/270

With nonmetal nonhydrocarbon compound:

(under subclass 268) Subject matter wherein, in addition to the transition metal, there is present a nonmetal, nonhydrocarbon compound, e.g., tetrakis (dialkyl amino) silane, etc.