US PATENT SUBCLASS 570 / 103
.~.~.~ To prevent or reduce polymerization

Current as of: June, 1999
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570 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
101  DF  .~ HALOGEN CONTAINING {21}
102  DF  .~.~ With preservative or stabilizer {10}
103.~.~.~ To prevent or reduce polymerization {3}
104  DF  .~.~.~.~> Nitrogen bonded directly to oxygen in preservative or stabilizer
105  DF  .~.~.~.~> Oxygen single bonded directly to benzene ring in preservative or stabilizer
106  DF  .~.~.~.~> Sulfur containing preservative or stabilizer

DEFINITION

Classification: 570/103

To prevent or reduce polymerization:

(under subclass 102) Compositions wherein the stabilizer or preservative prevents the halogen containing compound from reacting with itself to produce a high molecular weight, usually solid product.

(1) Note. There must be a positive disclosure or claim that polymerization is being prevented or reduced. In cases of doubt, the patent will be placed below and cross-referenced to this or indented subclasses if desired.