US PATENT SUBCLASS 528 / 383
.~.~.~.~ Polymerizing in the presence of a specified material other than a reactant

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}
373  DF  .~ FROM SULFUR-CONTAINING REACTANT {5}
381  DF  .~.~ From inorganic sulfur-containing reactant {4}
382  DF  .~.~.~ Sulfur dioxide is a reactant {2}
383.~.~.~.~ Polymerizing in the presence of a specified material other than a reactant {2}
384  DF  .~.~.~.~.~> Material contains a metal atom
385  DF  .~.~.~.~.~> Material is free oxygen, peroxide, air, or ozone

DEFINITION

Classification: 528/383

(under subclass 382) Subject matter wherein sulfur dioxide 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".