US PATENT SUBCLASS 210 / 733
.~.~.~.~ Acrylic

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

600  DF  PROCESSES {14}
702  DF  .~ Making an insoluble substance or accreting suspended constituents {14}
729  DF  .~.~ Utilizing organic precipitant {2}
732  DF  .~.~.~ Synthetic polymer {2}
733.~.~.~.~ Acrylic {1}
734  DF  .~.~.~.~.~> Nitrogen containing (e.g., amine, azo, etc.)

DEFINITION

Classification: 210/733

Acrylic:

(under subclass 732) Process wherein the organic compound contains recurring units formed by the addition reaction of acrylic acid, alpha-substituted acrylic acid or functional derivatives of such acids.

(1) Note. The functional derivatives include the salts, esters, nitriles, amides, acyl halides, and anhydrides of the acids. The compound may include units of other monomers such as, e.g., stryrene or butadiene.