US PATENT SUBCLASS 507 / 219
.~.~ Organic component is solid synthetic resin

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

200  DF  WELL TREATING {4}
203  DF  .~ Contains organic component {17}
219.~.~ Organic component is solid synthetic resin {2}
220  DF  .~.~.~> Resin is polymer derived from phenolic and aldehydic monomers
221  DF  .~.~.~> Resin is polymer derived from ethylenic monomers only (e.g., maleic, itaconic, etc.) {6}

DEFINITION

Classification: 507/219

Organic component is solid synthetic resin:

(under subclass 203) Compositions wherein the organic component is a solid synthetic resin.

(1) Note. A solid synthetic resin is a polymer which is described as a solid or is described in one of the following terms: (a) coagulated; (b) elastic; (c) elastomeric; (d) friable; (e) meltable; (f) molten; (g) powder; (h) rubber; (i) thermoplastic. A wax is not considered to be a solid even if defined by one or more of the above terms.

(2) Note. In this area, the classification is dependent on a monomer which is either part of the polymeric backbone or has been reacted subsequent to polymerization, such as a graft or block copolymer, and appears first in the instant schedule. A

monomer is a material which occurs in a polymer as a repeating unit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

206+, for humate, lignin, lignite, or lignosulfonate graft copolymers.

209+, for carbohydrate or gum graft copolymers.

261, for polyalkoxylates (e.g., polyalkoxylated alkylphenol, etc.) or PEG-type polymers which are not resins.