PURPOSE:To improve productivity and cycle life characteristic by mixing the thermoplastic high polymer resin powder or fiber having acid resistance and the powder or fiber of silica or alumina, and using the mixture as a retainer with pressure or heat compression molding made. CONSTITUTION:The mixture, of at least one kind of the thermoplastic high polymer resin powder or fiber having acid resista...

A curved edge (24) (25) (26) on a lens (21) is formed by directing a laser beam (23) onto the lens adjacent its edge and causing relative movement between the laser beam and contact lens whereby a curved surface is formed on the edge of the lens by the removal of material therefrom through ablative photodecomposition.

In order to simplify production line layout and revision, a plurality of unmanned self-propelled vehicles are used. Some vehicles carry a work piece from station to station while auxiliary vehicles which remain at each station carry components and assembly robots. Transport vehicle are used to move new components from storage sites to the work place. To facilitate large scale operations a camera c...

An ampul comprising a container having a reduced neck which supports an integral closure part that is removable by tearing away frangible portions. The neck can be sealingly applied over the seating cone of a hypodermic syringe whereby the syringe and ampul are firmly joined as one unit. The ampul is preferably produced as a single piece of a thermoplastic synthetic such as polypropylene whereby t...

A stream of molten metal is atomized to form a spray and additional cooling is provided by applying to the stream or spray relatively cold solid particles. The solid particles are preferably injected into the spray and may be formed from overspray particles recycled from the deposition process.

A method and apparatus for producing a coherent spray deposited product from liquid metal or metal alloy is provided. The method comprises atomising a stream of molten metal to form a spray and providing additional cooling by applying to the stream or spray relatively cold solid particles. The solid particles are preferably injected into the spray and may be formed from overspray particles recycle...

A guide device for an A.G.V. in which a magnetic field generated around a guide cable is detected by a pair of detection coils at both sides of the guide cable, and wheels are steered and driven in accordance with the detected output from the detection coils. A pair of detection coils are arranged to follow the movement of the wheels to be steered in such a manner that the detection coils are disp...

A process is disclosed comprising mixing selected shrinkage-minimizing halocarbons with selected two-carbon hydrogen-containing halocarbons, HCFC-123, HCFC-123a and HCFC-141b, and using this mixture as a blowing agent to produce minimal shrinkage closed-cell polyurethane foams.

An expanded polymer product with high distortion temperature, high flame resistance and low smoke toxicity and opacity comprises, in combination: between 18% and 25% of a mixture of at least two isocyanates; between 8% and 11% of a modified terpolymer; between 19% and 42% of a PVC resin in emulsion form; between 4% and 7% of at least one expanding agent; between 0.5% and 1% of at least...

A remotely-controlled vehicle, preferably configured as a golf cart is controlled by two independent driving motors operably connected each to one of the wheels. Signals for operation of the motors are generated by an infra-red signal detecting device, which detects infra-red signals from a remote source being followed by the vehicle. The infra-red signal detecting device includes two detectors wh...

Disclosed as the present invention is household furniture, particularly furniture which is very easily assembled and disassembled. The present invention is specifically directed to furniture which is scaled in size and in assembly complexity for children. A particular embodiment is disclosed in which the furniture package is provided with full child-size parts and with a smaller sized set of paper...

Method of treating liquid by sedimentation in which reagents are injected into a flow of untreated liquid and there is created in the flow a colloid mixing and stabilization area; the flow is passed into an intermediate aggregation area and then into a sedimentation area equipped with separator plates from which clarified liquid is taken; characterized in that insoluble granular material which is ...

In the process for the manufacture of a polyamide composite material reinforced with long fibers, the improvement comprising impregnating the fibers with a polyamide oligomer or prepolymer, heat-treating the impregnated fiber to increase the length of the polymer chain, and then shaping the impregnated fiber by pultrusion.

An aqueous process is described for preparing water-resistant coatings of hydrophobic copolymers of a predetermined composition. The hydrophobic copolymers are made from hydrophilic comonomers such as a vinyl lactam and a polymerizable carboxylic acid. The hydrophobic copolymers are rendered water soluble with a volatile neutralizing agent, such as ammonium hydroxide, then coated onto a substrate ...

Expandable polymers in particle form for the preparation of foams having high heat distortion resistance contain from 20 to 94.9% by weight of a styrene polymer, from 0.1 to 75% by weight of a polyphenylene ether and from 5 to 20% by weight of a blowing agent mixture of aliphatic or cycloaliphatic hydrocarbons on the one hand and aromatic hydrocarbons, alcohols, ketones, ethers, esters and/or chlo...

A polyamide powder consisting essentially of elementary porous particles having a "gypsum rose" structure and a process for preparing a polyamide powder comprising polymerizing by anionic polymerization lactam in a solvent medium in the presence of a catalyst, an activator, and at least one amide; one of which is N,N'-alkylene bisamide; said polymerization being initiated with said lactam and said...

A monolayer polypropylene film is obtained by melt extrusion from a composition comprising 100 parts by weight of a crystalline polypropylene and of from 0.05 to 1 part by weight of a slipping agent [A] having a melting point of 100 DEG to 125 DEG C and a slipping agent [B] having a melting point of 70 DEG to 90 DEG C; the initial coefficient of friction of the film being 0.7 or less and the coe...

Polypropylene resin compositions suitable for producing polypropylene films with excellent properties are disclosed. The compositions can provide polypropylene films having very excellent transparency, excellent heat-sealability and good anti-blocking property. Such characteristics are essential requirements for packing films. The polypropylene resin compositions comprise 70 to 99 parts by weight ...

The instant invention involves a process for producing continuous polybenzimidazole films. The process is comprised of the following steps: (a) preparing a solvent solution of a polybenzimidazole polymer; (b) continuously casting the solution upon a support; (c) evaporating a sufficient amount of the solvent to form a self-supporting film in an oven; (d) washing the film in a nonsolvent; (e) remov...

PURPOSE:To reduce superconductive film manufacturing time by providing a superconductive film of Bi-Sr-Ca-Cu-O on a substrate of Ca2PbOx. CONSTITUTION:A superconductive film of Bi-Sr-Ca-Cu-O is provided on a substrate of Ca2PbOx. By thus using Ca2PbOx for the substrate and forming the superconductive film of Bi-Sr-Ca-Cu-O on it, a high Tc phase (phase of grade 110K) can be produced at a high ratio...