Abstract: An improved imbibitive polymer is prepared by a method which comprises linearly polymerizing methyl acrylate with a free radical-yielding catalyst while the acrylate is suspended in an aqueous medium containing selected suspending agent and while cross-linking the acrylate to a low level with selected cross-linking agent in a concentration of about 0.02-3%, by weight of the acrylate. The aqueous medium is heated and agitated during the reaction to keep the acrylate in fine suspension so that polymethyl acrylate beads are formed which do not agglomerate and which are capable of imbibing liquids having solubility parameters of about 8.5-11.5 Hildebrands. The catalyst concentration is usually about 1%, by weight of the methyl acrylate, and benzoyl peroxide and azo-bis-isobutyronitrile are preferred as the catalyst. The cross-linking agent is preferably divinyl benzene, 1,6-hexane-diol acrylate, ethylene glycol dimethacrylate and mixtures thereof, and is preferably used in a concentration of about 0.11-0.

Abstract: Ink compositions suitable for ink jet printing on metal, plastic, or paper surfaces, the ink characterized by light fast properties, incorporating in solution, silver nitrate and at least one solvent, said inks are subsequently exposed to ordinary light so as to render them particularly as a means for marking various materials whereby marking is normally visible.

Abstract: This invention relates to a radiation curable decorating ink comprising:at least one acrylic monomer or oligomer;at least one photoreactive resin;at least one photoinitiator;at least one free radical inhibitor; andat least one pigment.This invention also relates to novel photoreactive resins.

Abstract: An ink composition for use in jet printing comprising an aqueous solution of a water-soluble dye and a humectant consisting of at least one member of the group consisting of organic phosphonates and organic phosphites.

Abstract: Light sensitive ink compositions suitable for ink jet printing on metal, plastic, or paper surfaces, the ink characterized by opaque properties in light, incorporating in solution, at least one diazo derivative and at least one solvent.According to another of its aspects, this invention is a process for information recording comprising producing a fine jet of liquid containing at least one diazo derivative, directing said jet of liquid onto a recording medium, modulating the density of said applied jet by an electric field in accordance with the information to be recorded, thereby recording said information, and thereafter applying ultraviolet light to said recording medium bearing said recorded information, thereby rendering said recording opaque.

Abstract: Ink compositions suitable for ink jet printing on metal, plastic, or paper surfaces, the ink characterized by fluorescent properties in ultraviolet light, incorporating, in solution, a resin component, at least one solvent, proportioned to give the ink properties of heat and steam resistance, said inks are colorless in ordinary light and distinctly fluorescent in ultraviolet light so as to render them particularly suitable as a means for marking various materials whereby marking is normally invisible but easily detectable when subjected to ultraviolet illumination.According to another of its aspects, this invention is a process for information recording comprising producing a fine jet of liquid, directing a jet of colorless liquid onto a recording medium modulating the density of the applied jet by an electric field in accordance with the information to be recorded, thereby recording said information.

Abstract: In accordance with certain of its aspects, this invention relates to novel compositions and to the process for the plating of substrates by the jet printing of a metal or alloy which comprises continuously imprinting minute uniform droplets of a jet printing ink containing at least one soluble salt of at least one plate metal which is more noble than said basis metal, said jet printing ink exhibiting a viscosity at 68.degree. F. of between about 1.5 and 16 cps., said ink having a pH of between 0.5 and 9.5 and a specific resistivity of less than 10,000 ohm cm., onto a substrate, said droplets emitting from at least one ink jet electromagnetically energized to emit said droplets of ink at a rate of 8 to 150 kilohertz.

Abstract: Novel photoreactive coating compositions based on urethane modified acrylates which may be employed alone or in mixtures with other photoreactive acrylates are disclosed.

Abstract: Ink compositions suitable for ink jet printing on metal, plastic, or paper surfaces, the ink characterized by opaque and visible properties in light, incorporating, in solution, a resin component, and at least one solvent, proportioned to give the ink as deposited a high degree of tackiness. The printing bears an overlying coating of at least one pigment.According to another of its aspects, this invention is a process for information recording comprising producing a fine jet of liquid, directing the jet of liquid onto a recording medium while modulating the density of the applied jet by an electric field in accordance with the information to be recorded, thereby recording said information, affixing pigments to said recorded information, thereby rendering said information opaque and visible.

Abstract: An ink composition for use in jet printing comprising an aqueous solution of a water-soluble dye and a humectant consisting of at least one water-soluble alkene diol or alkene polyol compound.

Abstract: Opaque ink compositions suitable for ink jet printing on metal, plastic, or paper surfaces, the ink characterized by opaque properties in light, incorporating, in solution, at least one cellulosic derivative, a resin component, and at least one solvent, proportioned to give the ink property of opacity.According to another of its aspects, this invention is a process for information recording comprising producing a fine jet of liquid, directing said jet of liquid onto a recording medium, modulating the density of said applied jet by an electric field in accordance with the information to be recorded, thereby recording said information, and thereafter applying moisture to said recording medium bearing said recorded, thereby rendering said recording opaque.

Abstract: An ink composition for use in jet printing comprising an aqueous solution of a water-soluble dye and a humectant consisting of at least one water-soluble acetylenic compound.

Abstract: An ink composition for use in jet printing comprising an aqueous solution of a water-soluble dye and a humectant consisting of the internal anhydride of at least one carboxylic acid.

Abstract: A method and apparatus for high speed electroplating of steel rods in a bright acid copper bath. The rods bearing a nickel strike coating are supported on racks in vertical tiers, the racks making electrical connections exclusively from the ends of each rod to a cathode bar. The acid copper bath solution is subjected to constant air agitation and constantly recirculated to a heat exchanger for maintenance of a preselected temperature.

Abstract: Magnetizable particles ranging in size from 0.5 to 20 microns are dispersed in an insulating binder of thermosetting material to form a mixture in which such particles comprise approximately 90% of the weight of such mixture. The particles are either spherical or the mixture may be magnetizable material coated on spherical glass balls of micron size. The mixture is applied by painting or spraying to form a coating of approximately 40 mils or an otherwise metallic reflecting body or may be so applied to a sheet of flexible material which in turn is affixed to a metallic material otherwise exhibiting reflectivity for energy in the frequency range of 2 to 10 Ghz.

Abstract: Water-thinnable, di- or polyesters and water-insoluble coatings which are particularly suitable as wood finishes and which are made by reaction of the di- or polyesters with water-soluble aminoplast resins are described. The ester resin intermediates are made by reacting a triol having a carbon/oxygen ratio of about 5:3 to about 7:3 with a polycarboxylic acid selected from lower molecular weight polycarboxylic acids so that the resulting ester resin is water-thinnable. The ratio of triol to polycarboxylic acid is varied to produce either the diester or the polyester.

Abstract: Essentially linear polyester resins are made with a limited number of reactive hydroxyl and carboxyl groups pendant thereto. Such polyester resins are made water-dispersible by admixing therewith selected coupling solvents and amine compounds. Heat-curable coatings formulations are made therefrom by combining the water-dispersible polyester resins with water-soluble aminoplast resins and water.

Abstract: An improved reversible rubrail suitable for use on vessels such as ships, boats and the like comprises an elongated flexible resilient strip having an upstanding rear wall and spaced front walls connected to opposite ends, that is, the top and bottom of the rear wall and extending arcuately forward thereof so that their free ends abut or reversibly overlap and so that they define a covered compressible space or cavity with the rear wall. The free ends of the two front walls are flexible and thus provide access to the compressible cavity so as to permit the rubrail to be easily installed while concealing internal connecting bolts, screws, etc. within the cavity.An end wall is connected to either the top or bottom of the rear wall and extends rearwardly thereof. The rear surface of the rear wall and one surface of the end wall are flat. These flat surfaces are connected preferably at a 90.degree. angle.

Abstract: An automatic pump speed controller for controlling and maintaining the strokes per minute of a down-hole oil well pump and providing signals on the surface indicating the actual strokes per minute of the pump. The automatic pump speed controller comprises a means for measuring the strokes per minute of the pump, and a means for adjusting the pump to correspond to a preselected stroke per minute value. The automatic pump speed controller also provides for a visual read out of the actual strokes per minute of the pump which enables an observer to obtain this information. In the present invention, pressure pulses from the pump are transmitted to the invented automatic pump controller on the surface and are monitored. If the pulses indicate that the pump is operating at a rate different than the preselected rate, the controller is adapted to automatically readjust the pump to conform to the preselected rate.