摘要:
Disclosed are marking particles comprising a first polymer a second polymer, a chelating agent, and a spiropyran material of the formula wherein n is an integer representing the number of repeat —CH2— units and R is —H or —CH═CH2. The marking particles comprise a core containing the first polymer in which is dispersed the chelating agent and the spiropyran and encapsulated within a shell of the second polymer formulated by an interfacial polymerization.
摘要:
Disclosed is a display comprising an arrangement of a plurality of optically anisotropic rotatable elements, each of the rotatable elements having a surface in contact with an enabling fluid, the rotatable elements being electrically dipolar in the presence of the enabling fluid and thus being subject to rotation upon application of an electric field, the rotatable elements being free to rotate in place but not free to translate substantially so as to disrupt the arrangement of rotatable elements, wherein a first portion of the surface contains a mixture of a chelating agent and a spiropyran material of the formula wherein n is an integer representing the number of repeat —CH2— units and R is —H or —CH═CH2, and wherein a second portion of the surface contains substantially no spiropyran.
摘要:
Disclosed are marking particles comprising a first polymer, a second polymer, a chelating agent, and a spiropyran material of the formula wherein n is an integer representing the number of repeat —CH2— units and R is —H or —CH═CH2. The marking particles comprise a core containing the first polymer in which is dispersed the chelating agent and the spiropyran and encapsulated within a shell of the second polymer formulated by an interfacial polymerization.
摘要:
Disclosed is an electrophoretic ink comprising a suspending fluid and, suspended in the suspending fluid, a plurality of particles comprising a mixture of a chelating agent and a spiropyran material of the formula wherein n is an integer representing the number of repeat —CH2— units and R is —H or —CH═CH2, the particles being free to migrate within the suspending fluid under the influence of an electric field.
摘要:
Disclosed are marking particles comprising a resin, a chelating agent, and a spiropyran material which is of the formula The marking particles are prepared by an emulsion aggregation process.
摘要:
Disclosed are marking particles comprising a resin, a chelating agent, and a spiropyran material which is of the formula The marking particles are prepared by an emulsion aggregation process.
摘要:
Various techniques are disclosed for forming bichromal balls or multicolored balls by laser-based methods. In one method, a laser and a template are used to form small discrete precursors that are subsequently spherodized. In another method a laser is used to cut or otherwise form small discrete precursors that are also subsequently spherodized. These methods are particularly well suited for forming balls or other sphere-like bodies having diameters less than 100 microns.
摘要:
Disclosed is a process which comprises (a) applying to a recording sheet a marking material comprising a Raman-detectable component which, when irradiated with monochromatic radiation, exhibits a detectable Raman spectrum, thereby forming a mark on the recording sheet; (b) irradiating the mark on the recording sheet with monochromatic radiation; and (c) measuring the Raman spectrum of radiation scattered from the mark when the mark is irradiated with monochromatic radiation.
摘要:
A process comprising:reacting a first polymer containing at least one haloalkyl substituted styrene, with a reactive acrylate compound wherein the haloalkyl substituent is converted to an alkylacrylate ester or an alkylacrylate ester ammonium salt to form an acrylated second polymer, andirradiating said acrylated second polymer.
摘要:
A process for printing a metal wire pattern on a substrate, including: printing a first salt solution including a metal ion that will undergo a reduction half-reaction; printing a second salt solution containing a reductant that will undergo an oxidation half-reaction in contact with the first salt solution, resulting in the reduction of the metal ions of the first salt solution; and allowing the first and second salt solutions to react by a galvanic reaction, causing reduced metal ions of the first salt solution to precipitate as a solid, on the substrate.