Stock material in which at least one constituent* is disposed to respond to a stimulus in a predetermined manner to produce a desired result.
(1) Note. The result may be due to the cooperative responses, to their respective stimuli, of several constituents of the stock material occurring either
simultaneously or consecutively (e.g., a chain reaction).
(2) Note. This collection is not intended to receive a disclosure which merely indicates a melting or softening at a particular temperature; but as exemplary of the disclosures to which this collection is restricted are: a layer which becomes opaque or transparent when subjected to light or heat to vary transmission of the light, a constituent which evolves CO2 gas when heated to a certain temperature in order to extinguish fire, or an adhesive which releases its bond between layers and allows insulating air spaces to form when the stock material is heated to a certain temperature.
(3) Note. Excluded from this collection are light sensitive materials of the type found in Class 430: a heat or light polymerizable material of the type found in Class 260, subclasses 2+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
1, for a stock material product comprising a liquid crystal which usually responds to varying temperature, light or electrical potential to produce a change therein.
