US PATENT SUBCLASS 507 / 122
.~.~.~.~ Sulfur is attached directly or indirectly to the ethylenic monomer by nonionic bonding

Current as of: June, 1999
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507 /   HD   EARTH BORING, WELL TREATING, AND OIL FIELD CHEMISTRY

100  DF  EARTH BORING {4}
103  DF  .~ Contains organic component {14}
117  DF  .~.~ Organic component is solid synthetic resin {1}
118  DF  .~.~.~ Resin is polymer derived from ethylenic monomers only (e.g., maleic, itaconic, etc.) {5}
122.~.~.~.~ Sulfur is attached directly or indirectly to the ethylenic monomer by nonionic bonding

DEFINITION

Classification: 507/122

Sulfur is attached directly or indirectly to the ethylenic monomer by nonionic bonding:

(under subclass 118) Composition, wherein said polymer contains sulfur attached to an ethylenic moiety directly or indirectly by nonionic bonding.

(1) Note. A composition with sulfur as part of a mere counterion to an ethylenic moiety is not a basis for including such a composition in this subclass. For example, a poly(vinylpyridinium) sulfate is included in subclass 123.