Abstract: A method for the preparation of electrostatic masters, and product prepared thereby, said masters having improved water and pick resistance for lithographic printing. The method comprises applying a barrier coat formulation to a substrate wherein the formulation contains an aqueous dispersion of a copolymer of at least about 60% ethylenically unsaturated polymerizable monomer having non-polar functionality and about 3 to about 40% of a polymerizable olefinically unsaturated monomer having polar functionality.

Abstract: A molded article which consists of a core comprising a copolymer of a monovinyl aromatic monomer and an alpha, beta-unsaturated cyclic anhydride and a grafted water-swollen hydrophilic polymer coating on the core is particularly suitable for use as a blood-contacting article.

Abstract: Structures composed of photosensitive resist are produced for semiconductor circuits by first generating a mask of a photosensitive resist onto a substrate and then applying a layer of a photosensitive resist over the entire surface of the substrate, including the first generated mask, so that such mask dissociates or dissolves by the material of the subsequently applied layer, which is then structured. In this manner, an improved adhesion of the resist structures to the substrate is achieved and simultaneously cleansing steps are eliminated. The inventive process is utilized for all processes during manufacture of semiconductor circuits wherein at least two photolithographic processes occur without the intervention of a high temperature step.

Abstract: A method of intensifying or amplifying an image substrate obtained by imagewise release or transfer of a microcapsular substance which is liquid at room temperature, unaltered in state, by a pigment developer, and fixing the image.

Abstract: Disclosed is a tubular packaging material to produce a sausage casing comprising a carrier tubing comprised of hydrate and containing in its wall from about 5 to 12% by weight of water and from about 18 to 28% by weight of a plasticizer; an anchoring layer on the outside of the carrier tubing of a water-insoluble heat-cured synthetic condensation product; a film coating on the outside of the carrier tubing which is substantially impermeable to water and water vapor and which comprises a copolymer of vinylidene chloride; and a water-permeable adhesion-promoting layer on the inside surface of the carrier tubing, comprising a water-insoluble, heat-cured condensation product. The carrier tubing is characterized by a swelling value in the range from about 80 to 120%, and the tubular packaging, after soaking in water at a temperature between about 40.degree. to 50.degree. C.

Abstract: Disclosed is a tubular packaging material for sausage casings, comprising a carrier tubing comprised of cellulose hydrate and containing in its wall from about 5 to 12% by weight of water and from about 18 to 28% by weight of a plasticizer; and a coating on the inside and on the outside of the carrier tubing of a water-insoluble heat-cured synthetic condensation product wherein the carrier tubing is characterized by a swelling value in the range from about 80 to 120%, and the tubular packaging material, after soaking in water at a temperature between about 40.degree. to 50.degree. C. for a period of about 30 minutes and subsequent cooling to about room temperature, is characterized by dimensions in the wet state which are 2 to 6% greater than those before the soaking in water. Also disclosed are methods for preparing the packaging material.

Abstract: In an integrated circuit fabrication sequence, a hardened mask pattern adhered to an underlying substrate is removed from the substrate by a solvent that comprises anhydrous hydrazine and dimethyl sulfoxide. The solvent rapidly penetrates the interface between the pattern and the underlying substrate and quickly breaks the adhesive bonds therebetween. Other materials (e.g., Al, Si, SiO.sub.2) in the structure being fabricated are not deleteriously affected by the solvent.

Abstract: A method of applying water-base paint in which a solvent which increases the viscosity of water-base paint is sprayed on the article to be painted before or after the application of the water-base paint, or at the same time as its application, or a paint compounded with a solvent which increases the viscosity of the water-base paint is sprayed on the article before or after the application of the water-base paint or at the same time that it is applied.

Abstract: The present invention resides broadly in a method for the preparation of paper having improved water and/or solvent resistance which comprises applying to a base paper a plastic particle containing formulation, and then wetting the formed coating with a solvent to which the plastic particles are sensitive. The present invention is particularly applicable to the preparation of electrostatic paper masters of improved water resistance for lithographic printing having a photoconductive layer and a barrier coat to which the photoconductive layer is applied. The barrier coat contains a binding amount of a binder resin and filler at least a portion of which is an amount of said plastic particles sensitive to the solvent system of the photoconductive layer, the amount of plastic particles and sensitivity being sufficient to materially increase water resistance.

Abstract: An electrostatic master having improved water, cockle and pick resistance for lithographic printing, and method for making the same, comprising a base, a barrier coat applied to said base, and a photoconductive layer containing a photoconductive material and binder applied to said barrier coat. The barrier coat preferably comprises a copolymer of at least 60% ethylenically unsaturated polymerizable monomer having non-polar functionality and about 3 to about 40% of a polymerizable olefinically unsaturated monomer having polar functionality. The barrier coat preferably contains about 2.5 to about 50% plastic particles based on the weight of the barrier coat. The barrier coat achieves improved water resistance at low coat weights, and thus can be applied without substantial change in conductivity.

Abstract: A simulated volcanic rock is described, as well as a method for producing the same. The rock includes a central core encased within a concrete coating formed from a plaster which includes an aggregate of expanded polymer particles. During production of the rock, the polymer particles at the exterior surface of the coating are exposed and subsequently dissolved to leave such exterior surface with pocks simulating the gas-formed voids typically present on the surface of natural volcanic rock.

Abstract: Shaped polyester articles having their surfaces modified with a stain-releasing finish and a process for modifying those surfaces are disclosed. The process subjects the polyester to a water-dispellable non-crystalline polymeric compound in an aqueous swelling environment.

Abstract: A process is disclosed for surface-modifying shaped essentially synthetic fiber articles so as to impart to them stain-release properties that endure through many launderings. The process subjects the article to a water-dispellable non-crystalline polymeric compound and a water-soluble salt in an aqueous swelling environment.

Abstract: Disclosed herein is a cathode having an electroconductive substrate and a porous surface. The porous surface is characterized by containing a major portion of nickel and a hydrogen overvoltage reducing amount of molybdenum. The molybdenum may be present as elemental molybdenum, as an alloy with nickel, or as a molybdenum compound. Also disclosed is an electrolytic cell having an anode, a cathode, and a separator between the anode and cathode, where the cathode is characterized by a porous surface having a major portion of nickel and a hydrogen over voltage reducing amount of molybdenum, which molybdenum may be present as elemental molybdenum, and molybdenum alloy with nickel or a molybdenum compound.Further disclosed is a method of electrolyzing an alkali metal chloride brine by passing an electrical current from an anode to a cathode to evolve chlorine at the anode and hydroxyl ion at the cathode.

Abstract: An opaque recording material has an opaque sensitive layer which can be transparentized by application of heat or a suitable solvent for the opacifying styrene resin pigment which is dispersed in a polyvinylidene chloride film-forming resin binder. In a particular application, useful for overhead transparencies or for making photographic negatives for reproduction, heat and solvent are both applied to the opaque layer in selected different areas to transparentize the opaque layer. The opaque layer may be deposited on a transparent clear or colored support such as transparent polyester.

Abstract: A plurality of porous valve-metal pellets, having the conventional oxide dielectric film, solid electrolyte, metallic counterelectrode, and insulative resin protective layer over the counterelectrode, are suspended by their anode risers from processing bars held in a carrier rack. Anode and cathode end-cap terminals are subsequently formed over opposite ends of each pellet, while the pellets are still suspended from the processing bars held in the carrier rack, by the selective steps of dipping and removing and curing of silver-loaded paint, and then nickel immersion plating over the cured silver caps, and then coating the nickel film with solder.

Abstract: A method for encasing an electric component of a type comprising a body and at least one pair of lead wires extending outwardly therefrom in the same direction. An outer protective coating or casing enclosing the body therein is formed by dipping the electric component into a solution of chlorinated hydrocarbon containing either a chained aliphatic hydrocarbon or a higher fatty acid to form a film covering the entire surface of the body and the surfaces of portions of the lead wires adjacent the body, then dipping the electric component into a solvent to remove the film except for that covering the surface of a portion of the body adjacent the lead wires and also that covering the surfaces of that portions of the lead wires, and finally dipping the electric component into a coating solution.

Abstract: The present invention resides broadly in a method for the preparation of paper having improved water and/or solvent resistance which comprises applying to a base paper a plastic particle containing formulation, and then wetting the formed coating with a solvent to which the plastic particles are sensitive. The present invention is particularly applicable to the preparation of electrostatic paper masters of improved water resistance for lithographic printing having a photoconductive layer and a barrier coat to which the photoconductive layer is applied. The barrier coat contains a binding amount of a binder resin and filler at least a portion of which is an amount of said plastic particles sensitive to the solvent system of the photoconductive layer, the amount of plastic particles and sensitivity being sufficient to materially increase water resistance.

Abstract: This invention describes a method of masking a workpiece to prevent the adhesion of a deposited tightly adhering conformal coating formed from the condensation of a vaporous diradical such as paraxylylene on selected portions of the workpiece. Specifically the process of the invention requires the covering of the areas of the workpiece, to which adhesion is not desired, with a non-polymerizing hydrocarbon and placing the covered area in close contact with an open cellular material containing a predominance of interconnecting cells which provides a large surface area for condensation of the unwanted condensate of the diradical, exposing the workpiece to the vaporous diradical, removing the workpiece from the open cellular material and immersing the workpiece in a solvent for swelling and dissolving the hydrocarbon covering.

Abstract: The present invention resides broadly in a method for the preparation of paper having improved water and/or solvent resistance which comprises applying to a base paper a plastic particle containing formulation, and then wetting the formed coating with a solvent to which the plastic particles are sensitive. The present invention is particularly applicable to the preparation of electrostatic paper masters of improved water resistance for lithographic printing having a photoconductive layer and a barrier coat to which the photoconductive layer is applied. The barrier coat contains a binding amount of a binder resin and filler at least a portion of which is an amount of said plastic particles sensitive to the solvent system of the photoconductive layer, the amount of plastic particles and sensitivity being sufficient to materially increase water resistance.

Abstract: Quantity production of friction nuts prepared for subsequent fusion of thermoplastic resin particles deposited in thread grooves therein, in which the nuts are supported with their axes vertical, a fluid slurry of the particles in a liquid carrier is introduced into the threaded interior of the nuts to fill the threaded opening, including the thread grooves therein, to a predetermined level from the bottom of the nuts. Excess slurry is then drained from the bottom ends of the openings. In order to leave the threads clear of obstruction at the bottom of the nut, the deposited slurry, after partially drying, is removed from the bottom thread convolutions by repeatedly inserting and withdrawing a sponge-like material directly into and out of the lower end of the thread opening, or by strongly agitating a small quantity of water in the lower part of the threaded opening.

Abstract: A semipermeable membrane suitable for the use in an artificial kidney of the filtration type is produced by preparing a solution of cellulose acetate in a solvent mixture consisting essentially of a solvent for cellulose acetate and a swelling agent and spreading said solvent on a substrate, the solvent being a mixture of dimethylformamide and acetone, the swelling agent being a mixture of cyclohexanone and water, the ratio by weight of the amount of dimethylformamide and that of acetone to that of the swelling agent being within the area defined by four points consisting of A (60, 20, 20), B (35, 45, 20), C (25, 35, 40) and D (50, 10, 40) in the triangular coordinates represented by FIG. 1; the ratio of cyclohexanone to water being in a range of from 0.8 to 1.3.

Abstract: The present invention resides broadly in a method for the preparation of paper having improved water and/or solvent resistance which comprises applying to a base paper a plastic particle containing formulation, and then wetting the formed coating with a solvent to which the plastic particles are sensitive. The present invention is particularly applicable to the preparation of electrostatic paper masters of improved water resistance for lithographic printing having a photoconductive layer and a barrier coat to which the photoconductive layer is applied. The barrier coat contains a binding amount of a binder resin and filler at least a portion of which is an amount of said plastic particles sensitive to the solvent system of the photoconductive layer, the amount of plastic particles and sensitivity being sufficient to materially increase water resistance.

Abstract: A cannula/catheter is provided which is suitable for long term or semi-permanent through-the-skin function while permitting tissue ingrowth which promotes healing and seals out sources of infection. The catheter is provided with a sheath formed of an elastomeric coating which is glow discharge treated, folded back on itself to form a cuff and surgically implanted and anchored in place. The cuff portion of the sheath is advanced outwardly by the growth of skin adherent to its periphery while the catheter is maintained in its original position.

Abstract: This invention relates to a process for the manufacture of an imaged article which comprises:(a) imagewise irradiating with laser light a material comprising a carrier having on a surface thereof a layer comprising at least one non-photosensitive material, and(b) removing non-irradiated areas of said layer by treating the layer with a developer in which said non-irradiated areas are soluble but in which irradiated areas are insoluble due to modification of said non-photosensitive material by the laser light.

Abstract: The pores of the carbon material of a carbon electrode are filled and coated with a hardened polyurethane resin wherein the outer surface of the electrode is uncoated.

Abstract: Disclosed herein is a cathode having characterized by containing a major portion of nickel and a hydrogen overvoltage reducing amount of a second transition metal. Also disclosed is an electrolytic cell having an anode, a cathode, and a separator between the anode and cathode, where the cathode is characterized by a porous surface having a major portion of nickel and a hydrogen over voltage reducing amount of a second transition metal.Further disclosed is a method of electrolyzing an alkali metal chloride brine by passing an electrical current from an anode to a cathode to evolve chlorine at the anode where cathode is characterized by a porous surface containing a major portion of nickel and hydrogen overvoltage reducing amount of a second transition metal.

Abstract: An improved electrode having a surface mixture of nickel and porous nickel produced by applying a paste mixture of NiAl.sub.2 and Ni.sub.3 B together with a vehicle to a substrate. After burning off the vehicle and firing in air at a temperature of 450.degree. to 650.degree. C. and thereafter sintering at a temperature of 800.degree. to 900.degree. C. in nitrogen, the coating on the substrate contains Ni.sub.2 Al.sub.3, NiAl.sub.2 B and nickel together with a thin overlayer of B.sub.2 O.sub.3. After removing the intermetallic aluminum, boron and boron oxide by dissolution with sodium hydroxide, the surface of the substrate contains Raney nickel supported on a structure of nickel. The resulting electrodes can be used as cathodes in water or brine electrolysis cells.

Abstract: A method of rendering an ink, selected from the group consisting of an oil-modified alkyd ink and a drying oil ink, strippable from a surface, upon which it is applied and dried, is disclosed. The method comprises applying to the printed ink, prior to the drying thereof, a modifying powder comprising a petroleum resin.

Abstract: In can manufacturing apparatus there is provided an overhead magnetic conveyor for transferring cans from a conveyor upon which they are coated to a conveyor upon which the cans are dried. To remove excess coating material which tends to form a bead around the lower most edge of a can, a bath of coating material solvent is disposed adjacent to the transfer conveyor and has within it an endless belt conveyor to which cans on the overhead conveyor are caused to fall and from which those cans are subsequently returned to the overhead conveyor. The upper, can carrying course of the endless belt conveyor is disposed at a predetermined depth below the surface of solvent within the cans so that excess material accumulating on the lower portions of the cans in the coating region is removed prior to entry of the cans into the drying oven.

Abstract: The invention provides a method of producing an ultra-black surface coating, having an extremely high light absorption capacity, on a substrate, such as a metal, ceramic, glass, or plastic, the blackness being associated with a unique surface morphology consisting of a dense array of microscopic pores etched into the surface, as well as the resulting coated substrate.The method involves preparing the substrate for plating with a nickel-phosphorus alloy, as by cleaning and/or activating it, immersing the thus-prepared substrate in an electroless plating bath containing nickel and hypophosphite ions in solution until an electroless nickel-phosphorus alloy coating has been deposited on the substrate, and then removing the substrate, coated with the electroless nickel-phosphorus alloy, from the plating bath and washing and drying it.

Abstract: A method of preparing a polymeric film comprising the steps of applying a layer of solution of the polymer in a volatile solvent therefor to a support, heating the solution to evaporate at least part of the solvent and, before the polymer is dry, applying to the surface of the polymer layer a surfactant which is soluble in the polymer solution.

Abstract: A thermal polymerization of monomeric materials in a porous workpiece such as wood is carried out using a temperature-controlling or heat-carrying agent. The controlled heat supply for developing the threshold temperature for an exothermic reaction or for supplying the heat for an endothermic chemical reaction and for removal of excess heat in exothermic reactions is effected by water whose addition in small quantities is not detrimental to the workpiece or the reactions.

Abstract: Plastic polyolefins which are resistant to photodegradation are combined with polyisobutylene to improve photodegradability.

Abstract: In can manufacturing apparatus there is provided an overhead magnetic conveyor for transferring cans from a conveyor upon which they are coated to a conveyor upon which the cans are dried. To remove excess coating material which tends to form a bead around the lowermost edge of a can, a bath of coating material solvent is disposed adjacent to the transfer conveyor and has within it an endless belt conveyor to which cans on the overhead conveyor are caused to fall and from which those cans are subsequently returned to an overhead conveyor. The upper, can carrying course of the endless belt conveyor is disposed at a predetermined depth below the surface of solvent within the bath so that excess material accumulating on the lower portions of the cans in the coating region is removed prior to entry of the cans into the drying oven.

Abstract: Fuser members coated with a release layer of silicone rubber are treated with a solvent to remove low molecular weight siloxanes, polysiloxanes and other impurities from the silicone rubber. The solvent must be one which removes or extracts the low molecular weight siloxanes, polysiloxanes and other impurities without dissolving or otherwise adversely effecting the integrity of the silicone rubber layer coated upon a base member. Generally solvent extraction is continued until the components in the cured silicone rubber which interfer with the release properties of the rubber in releasing toner from the fuser member surface, are depleted to concentration where they do not inhibit release of the toner.

Abstract: Disclosed is a method of preparing an electrodic surface on a metal substrate by depositing nickel and iron onto the substrate to form a nickel-iron surface and then leaching iron out of the surface to form a porous nickel surface. Also disclosed is an electrode prepared by depositing nickel and iron onto a metal substrate to form a nickel-iron surface, thereafter leaching the iron out of the surface to form a porous nickel surface.

Abstract: Water swellable absorbent articles, made from solutions of carboxylic polyelectrolytes, together with methods for their preparation, and a composition useful to make said articles are disclosed. The articles are cured and/or crosslinked with polyamide-polyamine epichlorohydrin adducts by heating and/or removing substantially all of the solvent from the precursor composition.The absorbent articles are useful as surgical sponges, diapers, tampons, meat trays, bath mats and the like.

Abstract: Printed circuits are produced on an insulating substrate by electroless metal plating according to a method comprising steps of:(I) forming a plating resist on a negative pattern of circuit with a masking material having an effect upon reducing the deposition of an initiator for electroless metal plating, and depositing the initiator onto the entire surface of the insulating substrate,(II) removing the initiator from the surface of said resist, and(III) dipping the insulating substrate in an electroless metal plating solution, thereby forming an electroless metal plating on a positive pattern of circuit, wherein a thermosetting resin containing a rutile type solid solution of metal oxides of titanium, nickel and antimony is employed as the masking material in said step (I), and the initiator is removed from the surface of the resist through contact with a hydrochloric acid solution of ammonium persulfate in said step (II).

Abstract: The method of treating sheet material such as leather and the like to make it supple in which the sheet material is subjected simultaneously to hot moisture and a cooling medium under pressure, alternatively from the grain side and from the flesh side in a continuous method. This is performed between two endless conveyor belts which are wetted by water, each of which is independently guided and saturated with water on the outer side and which are guided together on the inner side that is, they are guided alternatively from above and from below round a portion of the circumference of a plurality of rollers. Moistening, cooling and heating units are arranged on the outside of the rollers.

Abstract: A method of treating a hydrophilic polymer film is described in which the film is immersed at a temperature greater than 80.degree. C., and preferably greater than the crystalline melting point of the polymer, in a liquid capable of swelling the polymer. Polymers to which this method can be applied include graft copolymers of for example polyethylene, polypropylene, polytetrafluoroethylene, and nylon with acrylic or methacrylic acid. The films when treated have decreased electrical resistance and increased hydroxyl ion permeability and are then useful as battery separators and in other semi permeable membrane applications.

Abstract: Titanium is employed as a masking material for the selective etching of a coating material of a polyimide-silicone copolymer disposed on selective surface areas of electronic devices.

Abstract: A process for producing microporous sheet materials which comprises the step of:(1) preparing a suspension in an organic solvent of a polyurethane elastomer containing polyoxyethylene segments with or without a polyurethane elastomer not containing these segments;(2) mixing the resulting organic solvent suspension with water in an amount of not less than 50% by weight based on the polyurethane elastomer in the organic solvent suspension to form a water-in-oil dispersion;(3) coating or impregnating a substrate with the resulting dispersion;(4) if desired, partially evaporating the organic solvent from the product so treated;(5) contacting the coated or impregnated substrate for a short period of time with a coagulant having a coagulation value of not more than 25%, and(6) drying the product obtained in step (5).

Abstract: Products having high absorbency for use in absorbent dressings and the like are prepared by precipitating a water-insoluble but water-swellable superabsorbent polymer onto the surface of a long fiber cellulose from an aqueous slurry and drying the resulting coated fibers by dehydration with a water-miscible nonsolvent for the polymer.

Abstract: A process of spin coating a coating composition on the surface of a base plate, comprising supplying a material which is compatable with the coating composition, in either a liquid or vapor form, to the opposite surface of the base plate to the surface on which the coating composition has been supplied (hereinafter "back surface" or "back side") while rotating the base plate to remove the coating composition flowing to the back surface or to the edge portion of the plate. The material compatible with the coating composition may be applied to the surface of the base plate at the periphery thereof to reduce or remove the coating composition there.

Abstract: A diffusion barrier and separation substance for metal parts which adjoin each other in an oxygen-free, inert and preferably a helium-containing atmosphere such as used in a closed-cycle high temperature reactor or gas turbine comprises first and second adjoining metal parts with a hexagonal boron nitride placed between said parts. The hexagonal boron nitride is applied to the boundary surface of the metal parts in an aqueous or organic suspension prepared as a pasty, putty-like or brushable liquid substance. The substance contains from 5 to 50% of boron nitride, from 0.5 to 30% of binders and from 2 to 6% of swelling agents and 50 to 90% liquid suspension medium. The suspension medium may advantageously contain an anti corrosive agent and in addition the formed protective film is burned from 0.25 to 3 hours at a temperature of from 100.degree. to 500.degree. C.

Abstract: The present invention relates to a durable press process for cellulosic fiber-containing fabrics which utilizes formaldehyde and a water soluble liquid or gaseous acid catalyst to impart wrinkle resistance to the fabric.

Abstract: A washing apparatus is disclosed for removing excess coating material from the interior edge portions of metal containers wherein the excess material is formed by the coating draining down the interior sidewalls of the container after the coating has been applied thereto. The apparatus is provided with means for contacting the interior edge portions of the container in the seaming area with a wash fluid wherein the wash fluid maintained in a receptacle is discharged from a slot contained in the receptacle in the form of a ripple having waves which swell and undulate within the interior of the container to effect a washing action on the coating material accumulated therein to remove the coating material from the interior edge portions.

Abstract: A shaped article, especially a tube-shaped article, including a chemically modified cellulose hydrate and water which comprises:(a) a chemically modified cellulose hydrate which comprises a reaction product obtainable by reacting a cellulose derivative selected from the group consisting of a cellulose hydrate, a chemical reaction product of a cellulose hydrate with an alkylamido-bis-dimethylene-triazinone-tetramethylol, a chemical reaction product of a cellulose hydrate with an alkylamino-bis-dimethylene-triazinone-tetramethylol and mixtures thereof, with a synthetic polymer containing recurring oxyalkylene units and at least one terminal group having the formula --CH.sub.2 --O--CO--NH--CH.sub.2 -OH and(b) water,Is disclosed. Such articles can be prepared by treating a shaped article wherein the cellulose derivative is in the gel state with a solution of the synthetic polymer prior to drying the article under heating. Tube-shaped articles are particularly suited as sausage casings.

Abstract: A positive relief image is produced by coating a substrate with a layer of a copolymer containing about 90-98 mole percent of polymerized lower alkyl methacrylate units and about 2-10 mole percent of polymerized lower haloalkyl methacrylate units, heating the layer to cause cross-linking between polymer chains by removal of hydrogen halide, patternwise exposing the layer with high energy radiation such as a scanning electron beam, and removing the exposed portion of the layer with a solvent developer.The purpose of this abstract is to enable the public and the Patents and Trademark Office to rapidly determine the subject matter of the technical disclosure of the application. This abstract is neither intended to define the invention of the application nor is it intended to be limiting as to the scope thereof.