Abstract:
A TEMPERATURE-RESPONSIVE DISPLAY DEVICE OR COMPOSITION, COMPRISING MESOMORPHIC ("LIQUID CRYSTAL") MATERIALS(S) CONTAINED IN MINUTE CAPSULES AS THE TEMPERATURERESPONSIVE COMPONENT, IS PROVIDED. THE MINUTE CAPSULES, WHEN PLACED IN HEAT-CONDUCTIVE RELATION WITH A HEAT SOURCE TOGETHER WITH AN ASSOCIATED THERMAL GRADIENT PATTERN TO BE DISPLAYED, EXHIBIT AN IRIDENSCENCE INDICATIVE OF A CERTAIN CHARACTERISTIC TEMPERATURE RANGE, WHICH TEMPERATURE RANGE VARIES ACCORDING TO THE TYPES AND MIXTURES OF MESOMORPHIC MATERIALS AFFORDS PHYSICAL AND CHEMICAL PROTECTION FROM VARIOUS KINDS OF DEGRADATION AND ALLOWS THEIR USE IN PRACTICAL AND EFFICIENT THERMAL-GRADIENT DISPLAY SYSTEMS.
Abstract:
A PRESSURE-SENSITIVE RECORD UNIT COMPRISING SUPPORT SHEET MATERIAL HAVING MARK-FORMING COMPONENTS AND A PRESSURE-RELEASABLE LIQUID SOLVENT FOR SAID MARK-FORMING COMPONENTS ARRANGED IN CONTIGUOUS JUXTAPOSITION ON SAID SHEET MATERIAL, AT LEAST ONE OF THE MARK-FORMING COMPONENTS BEING MAINTAINED IN ISOLATION FROM THE OTHER MARKFORMING COMPONENT(S) PRIOR TO RELEASE OF THE SOLVENT, AND SAID MARK-FORMING COMPONENTS COMPRISING AT LEAST ONE
CHROMOGENIC MATERIAL AND AT LEAST ONE PHENOL-ALDEHYDE POLYMERIC MATERIAL SOLUBLE IN THE LIQUID SOLVENT AND REACTIVE WITH THE CHROMOGENIC MATERIAL TO PRODUCE A MARK.
Abstract:
An ink supply transfer medium is disclosed. The medium is of such a construction that marking pressure causes a transfer of colored ink material to any surface with which the medium is then in contact. The medium, usually in sheet form, includes a substrate and an ink supply layer with a dye decoloring layer located therebetween. The ink supply layer includes all of the reactive colorless components required to yield a colored marking ink but the components are separated and provide a potential colored mark available on occasion of component release. The decoloring layer includes a continuous polymeric barrier film with a dye decoloring reactant homogeneously dispersed therethroughout. Prior to application of marking pressure, the sheet does not include colored ink and does not appear to include colored ink transfer capabilities. After application of marking pressure, colored ink is produced and transferred and there is no trace of residual, untransferred, colored ink on the sheet.
Abstract:
A free-flowing powder of pigment particles having basereacting, chromogenic, colorless, dye-precursor material adsorbed thereon, and a novel pressure-sensitive record sheet material, utilizing said adsorptively-coated pigment material together with a source of colorless liquid ink which produces a color when and where applied to the dye-precursor-coated pigment particles.
Abstract:
A PROCESS OF MANUFACTURE OF MINUTE CAPSULE-FIBER UNITS, EN MASSE, COMPRISING THE STEPS OF (1) DISPERSING CELLULOSE FIBERS AND OIL MATERIAL AS DROPLETS IN AN AQUEOUS SOLUTION OF A FILM-FORMING POLYMERIC MATERIAL, (2) CHANGING THE CONDITIONS OF THE SOLUTION TO MAKE THE POLYMERIC MATERIAL LESS SOLUBLE SO AS TO GIVE AN EMERGENT COACERVATE PHASE OF POLYMERIC MATERIAL WHICH WRAPS THE OIL DROPLETS AND ATTACHES THEM TO THE FIBERS TO GIVE CAPSULE-FIBERS UNITS AND (3) HARDENING THE POLYMERIC MATERIAL OF THE CAPSULEFIBER UNITS.