US PATENT SUBCLASS 526 / 82
.~.~.~ Adding polymerization inhibitor or terminator, e.g., short-stopper, etc.

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {8}
72  DF  .~ POLYMERS FROM ONLY ETHYLENIC MONOMERS OR PROCESSES OF POLYMERIZING, POLYMERIZABLE COMPOSITIONS CONTAINING ONLY ETHYLENIC MONOMERS AS REACTANTS OR PROCESSES OF PREPARING {43}
78  DF  .~.~ Adding material to an on-going polymerization reaction, said addition being other than the continuous addition of the initial charge {4}
82.~.~.~ Adding polymerization inhibitor or terminator, e.g., short-stopper, etc. {3}
83  DF  .~.~.~.~> Added material contains nitrogen compound
84  DF  .~.~.~.~> Added material contains oxygen compound
85  DF  .~.~.~.~> Added material contains sulfur atom

DEFINITION

Classification: 526/82

(under subclass 78) Subject matter wherein the added material terminates or retards the polymerization reaction (e.g., polymerization inhibitor, terminator, chain-transfer agent, short-stopper, etc.).