Abstract: A process for preparing a permeable sheet of glass fibre reinforced thermoplastic material for moulding into a shaped product which includes binding thereto a surface layer of particulate material which is compatible with or inert to the thermoplastic content of said sheet and which acts to improve the surface finish thereof when the sheet is subsequently heated and chill moulded under pressure.

Abstract: A metal article has a coating of a noncuring polar lubricant. Preferred articles are of stainless steel and may be cutting devices such as needles, lancets and cannulas or sliding devices such as stylets and guidewires. Preferred noncuring polar lubricants are polysiloxanes terminated with a polar group. Particularly preferred lubricants are aminoalkyl or carboxyalkyl polysiloxanes. The lubricated metal article may be in a sliding relationship with a plastic article such as a catheter-guidewire or a catheter-cannula assembly. The plastic portion of the assembly may also include a lubricant.

Abstract: The invention concerns a roll or cylinder or roll coating for a pulp machine, paper machine, or paper finishing machine, in which application the roll or equivalent comprises a cylinder mantle of cast iron or steel or any other, equivalent metal, which bears the mechanical loads. On the rollor cylinder mantle, fixed to the outer face of the frame mantle, there is a resilient polymer coating, and onto said polymer coating a coating is fixed which is by several orders thinner than the radial thickness of the polymer coating. Said coating fixed onto the outer face of the polymer coating is a metal, ceramic, or cermet coating or a plastic coating. The invention further concerns a method for the manufacture of a roll coating in accordance with the invention as well as the use of such rolls and coatings.

Abstract: A process for producing spherical pellets from stack gas desulfurization residue filter cake. The process includes mixing dry fly ash with a filter cake in a mixer and discharging the blend onto a shallow pan disc pelletizer where pellets are produced. Additional fly ash produces pellets in a reroll ring. Instead of fly ash, cement kiln dust, portland cement, lime kiln dust or lime is utilized.

Abstract: The present invention relates to a glove, finger stall or the like comprised of a latex or other elastomeric material containing microcapsules. The glove or finger stall is characterized in that the concentration of microcapsules increases progressively from the outer surface, where the concentration equals 0, towards the inner surface of the glove contacting the skin of the user, where the concentration equals 90 to 95% of the microcapsules present.

Abstract: A formwork for a draft tube which includes ganged precast forms, each precast form corresponding to a curved segment of the draft tube. The precast forms are molded with continuous side plates extending thereabout and anchored in the precast concrete form and projecting beyond the surface opposite to the contact surface to provide a flange. A fastening means for attaching adjacent forms with a space therebetween to allow for stripping. A method includes determining the outline of the inner surface of the draft tube and dividing it into segments and preparing molds to make precast forms corresponding to each segment. The precast forms are assembled and shored to provide the draft tube ganged formwork, and concrete is poured about the draft tube formwork and is cured. The precast forms are stripped from the set concrete structure and reused in another draft tube formwork.

Abstract: Ceramic insulation has a mat of intersecting, discrete ceramic fibers bonded with a sol-gel glass binder. A fabric-reinforced glass coating is bonded to at least one surface of the mat. The insulation is prepared by forming a slurry of ceramic fibers, molding the slurry to form a soft felt mat, drying the mat, and incrementally introducing the binder into the mat with a multiple-impregnation technique, which controls shrinkage of the ceramic fiber mat. The fabric-reinforced glass coating is formed by applying a glass fiber cloth to a surface of the ceramic fiber mat and coating the same with a powdered glass. The powdered glass is melted and cooled.The process provides a layering technique that permits formation of a continuous fibrous structure having layers that impart distinct characteristics at desired regions within the structure.

Abstract: Pourable particles of normally soft and tacky plastic materials are formed by extruding the molten plastic material into contact with a cooling fluid containing a non-sticky material that is compatible with the plastic material, cutting the plastic material into particles, separating these particles from the cooling fluid, and contacting these particles with a second compatible non-sticky material.

Abstract: A process for reducing die drool during extrusion of highly filled polymeric resins for production of jacketing insulation for wire and cable by incorporating into the surface of the die in contact with said resin a compound which decreases the adhesiveness between the polymeric resin and the die surface, said compound being employed in an amount sufficient to reduce die drool.

Abstract: A method for forming a one-sided cling stretch wrap film by adhering a particulate antiblock to one surface of the film while the surface is in a semiplastic state, applying a particle-embedding force to the surface and removing excess particulate matter. The thermoplastic stretch wrap film exhibits a significant level of cling on one surface but no appreciable cling force on the other, the latter surface exhibiting a slide property when in contact with a film or like surface due to the presence of particulate antiblock agent mechanically bonded thereto. The film can be used to overwrap one or a group of articles to form a unitized packaged unit employing any of the known and conventional tension-wrapping techniques. Because of its one-sided cling and slide capabilities, pallet loads overwrapped with the film and in mutual contact avoid film tearing or destruction when the pallet loads are separated from each other.

Abstract: A process for preparing a controlled release medicine containing fenofibrate in an intermediate layer in the form of cyrstalline microparticles included within pores of an inert matrix prepared by a process involving the sequential steps of dampening said inert core with a solution based on said biner, then projecting said fenofibrate microparticles in a single layer onto said dampened core, and thereafter drying before said solution based on said binder dissolves said fenofibrate microparticles and repeating said three steps in sequence until said intermediate layer is formed.

Abstract: A process for producing a polyamide with a relative viscosity of at least 100 is disclosed. The process comprises adding a catalyst selected from the group consisting of ortho-phosphoric acid, meta-phosphoric acid, alkali-metal hypophosphite and phenylphosphinic acid to the polyamide, which has a relative viscosity of from 30 to 70, mixing the catalyst and polyamide at a temperature above the melting temperature of the polyamide under reduced pressure and for a time sufficient to increase the relative viscosity of the polyamide to at least 100, and extruding the resulting polyamide into shaped form and quenching said polyamide. The catalyst is present in amounts of at least 0.01 wt. % and increases in relative viscosity may develop in times as short as about one minute.

Abstract: A process for providing a design patterns in a material wherein a selected medium is applied to the material, the material being positioned adjacent a surface of a template which surface has selected surface characteristics either topographical or non-topographical in nature. The material is held against the template surface at a selected pressure and for a selected time period, at least a portion of the medium coming into contact with the template surface, the adhesive and conesive forces of the material, the medium, and the template interacting with each other to generate a unique design relief pattern on the surface of the material which pattern differs from the pattern characteristics of the template. The material is then suitably dried. The viscosity and amount of the medium, as well as the pressure used, are selected to lie within specified ranges to produce heavy or light relief patterns on permeable or non-permeable materials.

Abstract: A method of covering steel parts onto the outer surface of which there is applied a plastic coating which is surrounded by an embedding material. In order to obtain in a simple manner increased adherence between plastic coating and embedding material a granular powder or granulate is applied to the plastic coating which is still not completely hardened so that the individual powder granules are received only in part by the coating surface, so as to form profiling projections. In accordance with a variant, the profiling projections can also be formed by the side flanks of a helical rib which is extruded onto the heated plastic coating.

Abstract: A process for diffusing and subliming water-soluble and water-insoluble materials into never-dried, shrinkable aromatic polyamide fibers, using steam heated at certain controlled temperatures, within a specially designed treatment chamber and a process and apparatus for treating a tow of shrinkable material.

Abstract: A carbonaceous cylindrical body including a composite body of a carbonized material of a thin paper-like supporting body having a strength ratio of lengthwise direction to widthwise direction of 2 to 10 and obtained by manufacturing a paper-like body so that its carbonizable fibers are oriented and a carbonaceous matrix having an optically isotropic structure under a polarizing microscope and which shows a carbon content of at least 85% by weight, an oxygen gas permeation coefficient of 10.sup.-2 to 10.sup.-7 cm.sup.2 /sec. under a partial pressure of oxygen of 1 atmosphere and a bulk density of from 1.4 to 1.9 g/cm.sup.3. A process for producing the carbonaceous cylindrical body is also provided.

Abstract: A preformed yarn useful in forming fiber-reinforced carbon composite articles is disclosed which includes a core of a multiplicity of inorganic reinforcing fibers, a mixed powder provided in the interstices between the fibers and including a finely divided carbonaceous binder pitch and a finely divided coke, and a flexible sleeve formed of a thermoplastic resin and surrounding the core.

Abstract: A granular stabilizer for chlorine-containing polymers, which is formed by granulating a hardly fusible or infusible powdery stabilizer for chlorine-containing polymers or a mixture of said powdery stabilizer with a powdery stabilizer aid through an organic solid binder or dispersion medium, wherein respective primary particles of said powdery stabilizer or said powdery mixture are surface-treated with the organic solid binder or dispersion medium in an amount of 2 to 15 parts by weight per 100 parts by weight of said powdery stabilizer or said powdery mixture, which is smaller than the critical liquid absorption of said powdery, and said primary particles are granulated into particles having an average particle size of 0.1 to 2 mm by fusion bonding of the surface treatment layers of the organic solid binder or dispersion medium.

Abstract: In a process for producing an aromatic polyester fiber by heat-treating a fiber obtained by melt-spinning an aromatic polyester exhibiting anisotropy in its molten state, an aromatic polyester fiber having high strength and high modulus of elasticity can be produced with suppressed fusion between single filaments during the heat treatment by (a) subjecting the fiber obtained by melt spinning to heat treatment in an organic liquid heating medium or (b) adhering to the fiber obtained by melt spinning at least one member selected from the group consisting of suspensions having a concentration of 0.05 to 20% by weight of organic polymer powders having a melting point or a softening temperature higher than the heat treatment temperature, and suspensions having a concentration of 0.1 to 20% by weight of barium sulfate powder or barium titanate powder, and then subjecting the resulting fiber to heat treatment.

Abstract: A continuous length of transparent plastic rod is fabricated into meaningful letters, numbers, or other shapes wherein the meaningful portions are coated with a pigment and/or reflective substance leaving the portions or spaces between meaningful portions transparent and not readily visible, whereby the structure as a unit resembles a neon sign.

Abstract: A method of making activated carbon microspherules including kneading activated carbon particles of a size below 100 .mu.m, together with a dispersion of a water-insoluble synthetic resin to form an intimate mixture; pressing the mixture through a screen having holes related to the size of the desired microspherules; powdering the pressed material; and granulating and drying the resulting microspherules.

Abstract: A process for the preparation of high-performance grade carbon fibers, which comprises attaching a fine powder of at least one member selected from oxides and carbides of silicon, aluminum, titanium, and boron to a precursor fiber bundle of as spun pitch fibers, subjecting the fiber bundle to an infusibilization treatment, and subjecting the fiber bundle to a carbonization treatment.

Abstract: A stator for a variable resistor, manufactured by a step of preparing a heat resistant film of polyimide, a step of preparing a transfer sheet by providing a resistor film containing carbon powder and allyle resin, such as diallyl phthalate resin, on the heat resistant film, a step of preparing a lead terminal, a step of preparing a forming die having a cavity for forming a substrate, a step of locating the transfer sheet and the lead terminal in the forming die to expose at least a part of the resistor film in the cavity and position a part of the lead terminal in the cavity, a step of introducing allyle resin, such as diallyl phthalate resin, into the cavity to form a substrate joined with at least a part of the resistor film, in which substrate a part of the lead terminal is buried, and a step of separating the heat resistant film from the substrate to leave the resistor film.

Abstract: In a process of manufacturing a substrate provided with a synthetic resin-bonded friction coating, the friction coating, which is joined to the substrate by a primer is formed in that a powder mixture which contains a friction powder and a synthetic resin powder is compacted and is cured at an elevated temperature.To eliminate the need for precompacting the powder mixture before it is applied to the substrate, said powder mixture is applied to the substrate to form a powder layer which can be compacted to the desired thickness of the friction coating. The powder layer which has been applied is then heated for a short time before the powder layer is compacted to the desired thickness of the friction coating.

Abstract: On extrusion of thermoplastic melts, flow anomalies occurring in the extrusion dies can be decisively reduced when dies are used whose surfaces coming into contact with the melts are provided with a thermally applied spray coating.

Abstract: A fiber web reinforced plastic is formed by applying dry resin powder to opposite sides of a vertically moving web, and then melting and pressing the power into the web. The dry powder is applied to the web by being thrown thereagainst. The powder thus more effectively occupies the voids in the web to minimize the presence of air in the web. The thrown-on powder can be melted before the laminating pressure is applied.

Abstract: The invention relates to a method for the production of shaped synthetic members, in which(a) Synthetic granulated particles are mixed and coated with a conducting powder;(b) An electric current is passed through the mixture of granulated particles and conducting powder the surfaces of the granulated particles becoming plasticized;(c) The mixture of granulated particles and conducting powder is sintered to form a preform under the action of pressure;(d) The preform is extruded into a moulding cavity thus forming the shaped synthetic member.

Abstract: Hollow microspheres are made by a process which comprises forming a film of a dispersed particle film-forming composition (containing dispersed particles, a binder, a film stabilizing agent and a continuous liquid phase) across a coaxial blowing nozzle, applying a blowing gas at a positive pressure on the inner surface of the dispersed particle composition film to blow the film and form, in the region of the coaxial blowing nozzle orifice, hollow dispersed particle microspheres having stable film walls, removing the hollow microspheres, treating them to bring dispersed particles into point to point contact and harden them to obtain hollow green microspheres, and subsequently subjecting them to a sufficiently high temperature for a sufficient period of time to remove the continuous liquid phase and to sinter the dispersed particles at their points of contact to form within the walls of said hollow microspheres interconnecting voids that are continuous from the outer wall surface to the inner wall surface of th

Abstract: The use of oxidized cellulose as a medical lubricant is disclosed wherein oxidized cellulose is employed as a mold release agent or a donning powder in the manufacture of surgical gloves as well as in other applications; medical devices and, particularly, a surgical glove, are provided having finely divided oxidized cellulose powder on the surface in a lubricity imparting coverage.

Abstract: A process and system for providing a design pattern in a material wherein a seleced medium is applied to the material, the material being positioned adjacent a surface of a template which surface has selected surface characteristics either topographical or non-topographical in nature. The material is held against the template surface at a selected pressure and for a selected time period, at least a portion of the medium coming into contact with the template surface. The surface characteristics of the template interact with the material and the medium as the medium comes into contact with the surface to produce the desired pattern.

Abstract: A process for diffusing and subliming water-soluble and water-insoluble materials into never-dried, water-swollen aromatic polyamide fibers, using steam heated at certain temperatures.

Abstract: A process is disclosed for forming at least one thin substantially uniform fluid coating comprising polymeric film forming material on a cylindrical mandrel, solidifying the fluid coating to form a uniform solid coating and separating the uniform solid coating from the mandrel. The process may comprise forming at least one thin substantially uniform fluid coating comprising polymeric film forming material around a cylindrical mandrel, the mandrel having a larger mass or lower thermal conductivity than the polymeric film forming material and a critical surface tension greater than the surface tension of the fluid coating, solidifying the fluid coating to form at least one thin substantially uniform solid coating comprising the polymeric film forming material around the cylindrical mandrel, heating both the uniform solid coating and the mandrel to a temperature at least above the apparent T.sub.

Abstract: A roving laid flat of unitary metal, mineral or synthetic filaments is treated with a powder, whose grain size is equal to the diameter of the filaments, of a plastic material chosen either from the group of thermosetting polyers including the epoxides, the phenolics, the polyesters with terminal groups --COOH, the polyimides, the acrylics and the polyurethanes, or prepolymerized polyamides modified by diamines, polyolefins modified by maleic anhydride or acrylic acid, partially hydrolized EVA copolymers, the E-VA-maleic anhydride terpolymers and eva copolymers grafted by the acrylic radical, then the powder charged rovings are coated by a thermoplastic polymer, such as polyamides, copolyamides and linear polyesters, the material thus obtained being placed in a mold under pressure and at a temperature not exceeding 170.degree. C.

Abstract: A process for making a balloon for use on a multilumen catheter using as a form for the balloon a mandrel having at least one groove and at least one score line. The mandrel is rotated while metering into the groove a thermoplastic adhesive. The balloon stock is formed by coating the mandrel with a solid thermosetting polyurethane prepolymer. After cooling of the mandrel a film of thermoplastic adhesive is wrapped over the balloon at about the score line. Once the assembly is cured the balloon stock is removed to result in a balloon having an adhesive film on the internal wall at one end and an adhesive film on the external wall at the other end.

Abstract: A decorative article and method of manufacture are provided. The article includes a plastic cap overlying a printed and/or decorated upper surface of an adhesive layer. The need for an intermediate metal, plastic, or paper substrate is eleiminated. By treating the upper surface of the adhesive to render it substantially tack free, the printing and/or decoration may be applied to that surface and the cap formed directly thereon.

Abstract: A process for producing an improved ceramic fiber molding by submersing the molding into a suspension containing colloidal silica and/or colloidal alumina and chromium oxide powder. The chromium oxide is deposited onto the ceramic fibers thereby increasing the molding's resistance to linear shrinkage and corrosion when subjected to high temperatures.

Abstract: Application of hydrophobic silica to an anisotropic-melt forming polyester yarn reduces interfilament and intrafilament fusion during heat-strengthening. Improvements in adhesion of yarn to certain matrices are noted.

Abstract: Composite material comprising a flexible sheath covering a roving of fibers impregnated to the core with a finely powdered thermoplastic, the melting point of which thermoplastic is equal to or greater than that of the sheathing material, together with process and apparatus for producing same by using an extrusion coating technique, the coating die being mounted on a leakproof powder fluidization tank via a blowing chamber thermally insulated from the tank.

Abstract: A molding process for producing a molded plastic product with a resin coating layer formed on its surface, which comprises electrostatically coating a powdery resin composition on the inner surface of a mold, filling and molding a plastic material in the mold to form a molded plastic product, and plasticizing, under compression, said powdery resin composition by the heat of the filled plastic material and/or by the heat for molding the filled plastic material, to form a resin coating layer securely bonded to the surface of the molded plastic product by anchor effect.

Abstract: Compression moldings are produced from finely divided thermoplastic polymers by a method in which the polymer particles are mixed with an effective amount of amorphous silica before being subjected to compression molding.Compression moldings of this type are used for the preparation of finishes, paints and lubricating oils, depending on the type of the polymers.

Abstract: Hollow microspheres are made by a process which comprises forming a film of a dispersed particle film-forming composition (containing dispersed particles, a binder, a film stabilizing agent and a continuous liquid phase) across a coaxial blowing nozzle, applying a blowing gas at a positive pressure on the inner surface of the dispersed particle composition film to blow the film and form, in the region of the coaxial blowing nozzle orifice, hollow dispersed particle microspheres having stable film walls, removing the hollow microspheres, treating them to bring dispersed particles into point to point contact and harden them to obtain hollow green microspheres, and subsequently subjecting them to a sufficiently high temperature for a sufficient period of time to remove the continuous liquid phase and to sinter the dispersed particles at their points of contact to form within the walls of said hollow microspheres interconnecting voids that are continuous from the outer wall surface to the inner wall surface of th

Abstract: A process for providing film tubes with anti-blocking means in that the film tube is cooled internally by an aqueous suspension containing a suspended release agent directly after extrusion, the excess suspensions are sucked from the interior and the tube, which is additionally cooled on the exterior in a water bath, is freed of remaining liquid by squeezing rollers.

Abstract: A method for the continuous production of plates and/or shaped bodies of fibre reinforced hydraulic setting masses is described in which the mass is provided in a predetermined thickness over the entire width of the plate to be produced, on a substrate continuously moved by a belt. Fibre cuttings from a cutting device are dispersed in a desired distribution onto the surface of the mass moving with the substrate and these are subsequently incorporated into the mass by a tool acting uniformly over the entire width of the mass. The raw plate can be further processed in its still deformable condition and brought into a desired final shape.

Abstract: A plastic-capped decorative article and method of manufacture are provided. The article includes a plastic cap which is applied over a decorated embedment positioned on a layer of pressure sensitive adhesive and then cured. Optionally, the upper surface of the adhesive may be treated to render its substantially tack free and suitable for printing thereon prior to the application of the plastic cap.

Abstract: A plastic-capped adhesive article and method of manufacture are provided. The article includes a plastic cap which is applied as a liquid directly to the upper surface of a layer of pressure sensitive adhesive and then cured. Optionally, the upper surface of the adhesive may be treated to render it substantially tack free and suitable for printing thereon prior to the application of the plastic cap.

Abstract: A decorative emblem and method of manufacture are provided. The emblem includes a plastic cap overlying a printed and/or decorated upper surface of an adhesive layer. The need for an intermediate metal, plastic, or paper substrate is eliminated. By treating the upper surface of the adhesive to render it tack free, the printing and/or decoration may be applied to that surface and the cap formed directly thereon.

Abstract: A radome combines low dielectric constant and dissipation factor at microwave frequencies with mechanical strength and rigidity as well as resistance to ablation and rain erosion at hypersonic velocities in the range of Mach 4 to 6. Continuous filament glass fabric and/or strand is saturated with PTFE dispersion. Layers are applied to a mandrel and cold isostatically pressed. The pressed layer may be machined between applications and subsequent pressings. After all layers are applied and pressed, optionally including an outer ablation resistant random fiber reinforced PTFE composite, the densified structure is heat cycled above the crystalline melt point of the polymer to maximize mechanical properties.

Abstract: A decorative trim strip and method of manufacture are provided. The trim strip includes a plastic cap overlying a printed and/or decorated upper surface of an adhesive layer. The need for an intermediate metal, plastic, or paper substrate is eliminated. By treating the upper surface of the adhesive to render it tack free, the printing and/or decoration may be applied to that surface and the cap formed directly thereon.

Abstract: A process for producing a carbon fiber from pitch material, which comprises melt spinning pitch material through spinning nozzles to form precursory pitch fibers and oiling the precursory pitch fibers, followed by infusible treatment and carbonization and optionally by graphitization, characterized in that an oiling agent composed essentially of a silicone oil is applied to the precursory pitch fibers prior to or during the oiling operation.

Abstract: In a tape which is driven by an elastic pretensioned belt, discontinuities such as embossings in the surface of the belt promote the release of air from between the belt and the underlying tape, thus minimizing variations in tape tension and tape speed.