US PATENT SUBCLASS 516 / 35
.~.~.~.~ The inorganic material primarily contains elemental alkali metal or primarily contains an alloy which primarily contains elemental alkali metal (e.g., sodium)

Current as of: June, 1999
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516 /   HD   COLLOID SYSTEMS AND WETTING AGENTS; SUBCOMBINATIONS THEREOF; PROCESSES OF

9  DF  CONTINUOUS LIQUID OR SUPERCRITICAL PHASE: COLLOID SYSTEMS; COMPOSITIONS CONTAINING AN AGENT FOR MAKING OR STABILIZING COLLOID SYSTEMS; PROCESSES OF MAKING OR STABILIZING COLLOID SYSTEMS; PROCESSES OF PREPARING THE COMPOSITIONS (E.G., THICKENING AGENT; PROTECTIVE COLLOID AGENT; COMPOSITION CONTAINING AN EMULSIFYING AGENT WITH NO DISPERSANT* DISCLOSED; ORGANIC LIQUID EMULSIFIED IN ANHYDROUS HF) {5}
20  DF  .~ Primarily organic continuous liquid phase (e.g., organic liquid emulsified in an organic liquid) {2}
31  DF  .~.~ Discontinuous phase material primarily solid or semisolid (e.g., colloid- sized dispersion of gel particles, or paraffin wax, or polytetrafluoroethylene) {2}
33  DF  .~.~.~ The material primarily contains inorganic material (e.g., chrome yellow, sodium nitrite) {4}
35.~.~.~.~ The inorganic material primarily contains elemental alkali metal or primarily contains an alloy which primarily contains elemental alkali metal (e.g., sodium)

DEFINITION

Classification: 516/35

The inorganic material primarily contains elemental alkali metal or primarily contains an alloy which primarily contains elemental alkali metal (e.g., sodium):

(under subclass 33) Subject matter in which the inorganic* material* primarily contains elemental alkali metal or primarily contains an alloy which primarily contains elemental alkali metal, such as sodium.

(1) Note. "Primarily contains" means that 50% or more of the inorganic* material* is elemental alkali metal or metals or 50% or more of the inorganic* material* is an alloy which is 50% or more elemental alkali metal or metals, by weight, volume, molecule, or atom.

SEE OR SEARCH THIS CLASS, SUBCLASS:

78+, for colloid systems (e.g., suspensions, or dispersions) in which the continuous liquid phase is aqueous and the discontinuous phase is primarily solid which is primarily inorganic* material*.