US PATENT SUBCLASS 528 / 17
.~.~.~.~ Material contains a Group IVB metal atom

Current as of: June, 1999
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528 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {23}
10  DF  .~ FROM SILICON REACTANT HAVING AT LEAST ONE SILICON-TO-HYDROGEN OR -CARBON BOND {12}
12  DF  .~.~ Polymerizing in the pressence of a specified material other than a reactant {6}
14  DF  .~.~.~ Material is a metal-containing material {5}
17.~.~.~.~ Material contains a Group IVB metal atom

DEFINITION

Classification: 528/17

(under subclass 14) Subject matter wherein the specified material contains a Group IVB metal atom in elemental or compound form, i.e., Ti, Zr, Hf.