US PATENT SUBCLASS 528 / 408
.~.~ Polymerizing in the presence of a specified material other than a reactant

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

Internet Version by PATENTEC © 1999      Terms of Use


528 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {23}
403  DF  .~ FROM HETEROCYCLIC REACTANT CONTAINING AS RING ATOMS OXYGEN, SELENIUM OR TELLURIUM, E.G., EPOXY, ETC. {7}
408.~.~ Polymerizing in the presence of a specified material other than a reactant {1}
409  DF  .~.~.~> Material contains a metal atom {4}

DEFINITION

Classification: 528/408

(under subclass 403) Subject matter wherein a heterocyclic reactant containing oxygen, selenium, or tellurium as ring atoms is polymerized in the presence of a specified material.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, see the Glossary for a definition of the term "specified material".