Abstract: An injection molding method with stamping compression obtains an optical lens or other molded article from thermoplastic resin. A cavity is heated to a temperature at which resin can be maintained in a molten state under normal temperature. Measured and molten resin is injected into the heated cavity through a sprue part, a runner part and a gate part. After the injection, the sprue part is sealed. The injected resin is maintained in the molten state at this time. The injected resin is then hardened in the heated cavity by applying a pressure which can provide a dynamic modulus of elasticity of the resin at the normal temperature and normal pressure. The resin hardened by the pressurization is then cooled to a removal temperature while reducing the pressure so as to maintain the dynamic modulus of elasticity of the resin at the dynamic modulus of elasticity of the resin at normal temperature and normal pressure.

Abstract: After fusion splicing of optical fibers, the splice area is positioned within a two-part transparent mold. Light-curable epoxy is injected into the mold and surrounds the splice area. A visible light source shines through the mold, which is preferably made of transparent plexiglass, thus allowing the epoxy to harden. The mold is opened and the rejacketed cable is removed. In order to ensure that the original jacket material at the cable ends does not separate from the epoxy rejacketing material, a heat-shrinkable tube may be installed over the rejacketed splice area.

Abstract: A method is disclosed for the production of a multi-ply sheet product in which separate non-woven fibrous webs are combined into a multi-ply sheet before embossment, embossed as a multi-ply sheet, embossed webs separated from one another and longitudinally displaced relative to one another, and then recombined into an embossed multi-ply sheet with the embossments out of register with one another. Prior to recombining the webs, the embossments on one of said web is smoothed out increasing the absorbency and softness if the web.

Abstract: Dimples can be produced in the surfaces of cast ceramic pieces by casting these pieces in a mold which contains as the dimple producing pattern a layer of bubble pack. In another embodiment of the invention, there is described the mold which incorporates bubble pack to produce dimpled effects in cast ceramic pieces.

Abstract: Air is blown on the surface reverse to a cooling drum of the thermoplastic resin film extruded onto the cooling drum. The air is decelerated and is continuously varied in the velocity. An air nozzle to blow air on the surface reverse to a cooling drum of the thermoplastic resin film extruded onto the cooling drum, not less than two air supply openings disposed along the circumferential direction of the drum and a reduction filter covering the air supply openings are provided. The cleaning times of the air nozzle can be reduced, and the thermoplastic resin film is always held in an excellent quality.

Abstract: A balloon for an intraocular lens, which is a unitary elastic hollow body made of an elastomer and having a convex lenticular shape without projections along its circumference, which gives, when inserted in a lens capsule, a configuration corresponding substantially to the shape of the lens capsule, said hollow body having a wall thickness of from 0.001 to 0.1 mm at its optical portion and a diameter of from 6 to 13 mm, and capable of being inflated in the lens capsule to form an intraocular lens when a light transmitting injection material is injected into the hollow body.

Abstract: In a method of making relief structures on mother-of-pearl layers removed from the shells of mollusks a portion of the layer is disposed on a negative mold having a relief shape formed therein, a modelling material is disposed on the layer portion and the layer portion is pressed into engagement with the negative mold by way of a planar stamp pressing onto the modelling material thereby relief-shaping the mother-of-pearl layer.

Abstract: An improved method for encapsulating an electronic component with a highly stable protective layer is provided. Such encapsulation is carried out by injection molding about the surface of the electronic component of an encapsulant composition comprising a molten melt-processable polyester which is capable of forming an anisotropic melt phase having uniformly blended therein about 0.1 to 30 percent by weight based upon the total weight of the composition of silicone oil and/or a silicone rubber. Quality encapsulation is made possible under conditions wherein damage to the electronic component is minimized, and the resulting product is well protected without damage under a wide variety of end use conditions including variations in temperature. The process is carried out in the substantial absence of deleterious mold shrinkage and the product exhibits an extremely low linear coefficient of thermal expansion which well protects the electronic component encased therein.

Abstract: Dimples can be produced in the surfaces of cast ceramic pieces by casting these pieces in a mold which contains as the dimple producing pattern a layer of bubble pack. In another embodiment of the invention, there is described the mold which incorporates bubble pack to produce dimpled effects in cast ceramic pieces.

Abstract: A resin molding having a very improved electric conductivity is obtained by the steps of mixing with a resin a complex of a polyether and an electrolyte salt soluble in the polyether, modling the mixture and then treating the resultant molding with plasma. The polyether is selected from the group consisting of alkylene oxide polymers and copolymers, preferably selected from the group consisting of polymers of alkylene oxide having not less than 4 carbon atoms and block or random alkylene oxide copolymers containing not less than 10 weight % of at least one alkylene oxide unit having not less than 4 carbon atoms.

Abstract: Composite acrylic polymer rods having clear central regions and colored peripheral regions are prepared by polymerizing a flowable solution comprising acrylic monomer, dye and, dissolved therein, acrylic polymer, around a rod of acrylic polymer. Alternatively, a rod of acrylic polymer surrounded by a flowable mixture comprising partially polymerized acrylic monomer and dye is subjected to polymerization conditions to polymerize the flowable mixture.

Abstract: A foamed thermoplastic resin sheet is produced by a process comprising preheating in a chamber including a conveyor means for continuously conveying a radiation cross-linked thermoplastic resin sheet containing a blowing agent in a horizontally supported state and foaming said sheet in an expansion oven over a hot air blanket while continuously conveying said radiation cross-linked thermoplastic resin sheet in a horizontally supported state while applying a uniform tension across the width of the foamed sheet.

Abstract: An interpenetrating network copolymer, method of producing same, and method of producing optical lens blanks and finished lenses therefrom. The method broadly involves the preparation of first and second mixtures of polymerizable vinyl monomers and interrupting the polymerization of the first mixture at a relative viscosity of from about 1.05 to about 10 by admixing the partially polymerized first mixture with the second mixture to create a casting solution and thereafter, when desired, polymerizing molded casting solution in heat to create a solid lens material.

Abstract: A method of impregnating the surface of a ceramic disk for use in a faucet valve to fill the pores of the ceramic plate and reduce the coefficient of friction between cooperating plates which control the fluid flow through the faucet valve. The plates are impregnated by subjecting the plates to a carburizing gas under heat over an extended period of time. The process causes a carbon matrix to fill the pores of the ceramic plate. Thereafter, the plates are lapped and polished to remove any excess deposits from the plate surface. The process forms a pair of cooperating plates for use in a faucet valve which eliminate sticking or lock-up of the valve assembly.

Abstract: A method for handling, treating, heating and incinerating, on-site, liquid waste, sewage, sludge, cakes or solid waste. The primary treatment process utilizes a 0.1-50% power of plastic clay and may include separation, absorption, precipitation, neutralization, sedimentation, flocculation, coagulation, filtration or dewatering. The residue remaining after the primary treatment is mixed with additional clay or silicates and a suitable absorbent for either organic or inorganic, liquid material, to form a solid mixture of approximately 5-50% clay or silicates and 0.1-10% absorbent. The solidified mixture is formed into granules or other shapes having large surface area. The stable, solid granules are transferred to a conveyorized oven, dried and pyrolized or fired. Resulting organic gases may be condensed to oil or exhaust gases may be vented into a secondary incineration unit.

Abstract: A mold for forming a magnetic tape cassette and a method for multi-color molding a magnetic tape cassette or the like. Sprue-runners connected to submarine gates used in making at least portions of the cassette are formed with notches near the submarine gates to reduce the cross-sectional area of the sprue-runners. As result, the sprue-runners can be easily cut off from the body of the cassette by breaking the notched portions.

Abstract: The invention relates to a method of producing an optical cable in which at least one optical waveguide fed forward from a supply reel is provided with a loosely surrounding jacket by means of extrusion, whose length is subsequently reduced relative to the length of the optical waveguide travelling through the expander and is thereafter wound-up. The excessive length of the optical waveguide is consequently distributed uniformly along the overall length of the optical cable, because of the fact that the optical waveguides paid-out from the supply reel are stranded before they are fed into the extruder.

Abstract: A process for releasing leachable substances from a polymeric contact lens blank. the contact lens is confined in a cavity within a carrier to permit the hydration of the lens without permitting it to invert or roll over. A fluid flow is introduced into the cavity about the lens to extract leachable material from the lens. The process significantly reduces the amount of leaching fluid that is used and the amount of time that is needed for hydration, washing and extraction.

Abstract: Fiber-reinforced ceramic honeycomb is prepared by impregnating a high-temperature fiber, notably fibers of ceramic materials such as silicates, aluminosilicates, aluminates and silicon carbides, with a liquid solution or suspension of a ceramic precursor material, followed by forming the impreganted fiber into corrugated strips, assembling the strips into the honeycomb structure, then heating the strips to form the ceramic. Multiple impregnations with intervening heating are useful in controlling the density and quality of the product.

Abstract: A molten polyester sheet is solidified by cooling it on the surface of a mobile cooling medium on which a water film has been formed. The sheet is stretched at least 4.5-fold in overall stretching ratio in a longitudinal direction through a plurality of stretching steps. Since casting is conducted via the water film, water is absorbed in the surface layer and the interior of the cast sheet, thus facilitating orientation by stretching in the longitudinal direction and lowering the stretching temperature. As a result, stretching with a high stretching ratio can be attained by multi-stage stretching without conducting high-temperature stretching. Thus, this process can accelerate film formation, improve productivity, and provide a film having reduced unevenness in thickness, less surface roughness and excellent abrasion resistance.