US PATENT SUBCLASS 510 / 177
.~.~.~ Azeotropic or azeotrope-like composition (e.g., for defluxing, etc.)

Current as of: June, 1999
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510 /   HD   CLEANING COMPOSITIONS FOR SOLID SURFACES, AUXILIARY COMPOSITIONS THEREFOR, OR PROCESSES OF PREPARING THE COMPOSITIONS

108  DF  CLEANING COMPOSITIONS OR PROCESSES OF PREPARING (E.G., SODIUM BISULFATE COMPONENT, ETC.) {21}
109  DF  .~ For cleaning a specific substrate or removing a specific contaminant (e.g., for smoker's pipe, etc.) {50}
175  DF  .~.~ For printed or integrated electrical circuit, or semiconductor device {2}
177.~.~.~ Azeotropic or azeotrope-like composition (e.g., for defluxing, etc.) {1}
178  DF  .~.~.~.~> Nitrogen-containing component

DEFINITION

Classification: 510/177

Azeotropic or azeotrope-like composition (e.g., for defluxing, etc.):

(under subclass 175) Liquid compositions which are substantially constant boiling and which approximate or duplicate the behavior of a single-substance solvent at a given temperature.

(1) Note. The distillates of azeotropes have the same composition as the original mixture.