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4636346 |
Preparing guiding catheter
A thin-walled guiding catheter of the type having a distal end adapted to be formed into curved configurations and passed through branching blood vessels and the like is prepared with a...
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4624051 |
Shaving unit
A shaving unit comprises at least one blade and blade support structure that has external guard and cap surfaces for engaging the user's skin respectively ahead and rearwardly of the blade edge or...
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4623498 |
Method of improving quality of hot pressed Si.sub.3 N.sub.4 bodies
A method of improving the quality of hot pressed Si 3 N 4 bodies is disclosed. Unpurified silicon powder and admixed oxygen carrying agents are compacted to form a preform. The preform is...
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4619798 |
Method of manufacturing parts for use to the heat processing furnace
A method of manufacturing extremely high purity parts for use to the heating furnace comprising adding a sintering assistant of 0.5-2.0 weight % and a binder, to SiC powder which has an average...
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4619724 |
Method for producing fabric and garments
A method for producing a fabric item comprising the steps of producing a perforated substrate in the shape of the desired fabric item, supplying fibers to the perforated substrate, causing the...
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4617126 |
Membrane separation of hydrocarbons
Mixtures of heavy oils and light hydrocarbons may be separated by passing the mixture over a polymeric membrane which comprises a polymer capable of maintaining its integrity in the presence of...
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4612147 |
Process for the manufacture of hydrophilic polyester fibers
Polyester fibers containing one or more oxalate complexes of the general formula Me n [Z(C 2 O 4 ) m ] are drawn and subjected to a hydrosetting process at temperatures of 90° to 170° C. in...
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4599209 |
Method of producing absorbing wound dressing
A process of making a wound dressing is suggested, in which a technical conventional viscose solution is mixed with a polysaccharide derivative; the mixture is treated at increased temperatures...
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4592131 |
Method for manufacturing resin-sealed semiconductor device
A method for manufacturing a resin-sealed semiconductor device wherein after a semiconductor pellet is sealed to a leadframe with a resin, outer leads projected from the leadframe and adhered with...
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4583984 |
Procedure for treating cellulose derivative fibres
The present invention concerns improving the properties of cellulose carbamate fibres. The wet strength properties in particular can be improved by treating the fibres with alkalis or organic...
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4543227 |
Method of treating refractory boride shapes
Hot pressed refractory boride shapes are treated with molten alkali metal hydroxide such as by immersion in a bath of the molten hydroxide. The treatment cleans and removes residual carbon from the...
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4538347 |
Method for making a varistor package
A process for making an encapsulated metal oxide varistor package comprises pressing the varistor powder mixture into a disc, sintering the pressed disc, followed by slow cooling to room...
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4536536 |
High tenacity, high modulus polyethylene and polypropylene fibers and intermediates therefore
Solutions of ultrahigh molecular weight polymers such as polyethylene in a relatively nonvolatile solvent are extruded through an aperture at constant concentration through the aperture and cooled...
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4521488 |
Polyacetal resin composition excellent in heat stability and surface processability and process for surface treating same
A polyacetal resin composition excellent in heat stability and surface processability which comprises (a) about 100 parts by weight of polyacetal resin, (b) about 2 to about 35 parts by weight of a...
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4517315 |
Production of a film-like or fibrous structure of an aromatic polyester
A process for producing a film-like or fibrous structure of an aromatic polyester, which comprises (1) forming an unstretched film-like or fibrous structure by melt-shaping a blend comprising...
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4486376 |
Process for modifying porous polymeric membrane
A modified polymeric membrane having an excellent separating property is produced by applying, to a porous polymeric membrane, a volatile treating liquid containing a modifying agent which consists...
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4485058 |
Process for producing hollow water-absorbing polyester filaments
Hollow water-absorbing polyester filaments each having a number of fine caves which are evenly distributed in at least a portion of the filament and through which the hollow is connected to the...
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4477300 |
Cementitious board manufacture
In the manufacture of cementitious board by depositing a slurry of hydraulic cementitious material, commonly gypsum plaster, between two facing sheets and forming it to the desired width and...
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4470944 |
Process for producing an aromatic polyimide film
The present invention relates to a process for producing an of aromatic polyimide film comprising (A) casting on a support a dope containing an amide-type polar solvent and 10-45 weight percent of...
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4468360 |
Preparing porous diaphragms for electrolytic cells having non-uniform hydrophobicity
A porous diaphragm for an electrolytic cell for the electrolysis of alkali metal halides is comprised of a thermoplastic support fabric impregnated with particles of a siliceous composition. The...
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4468434 |
Dyed polyester fiber composite structure
A dyed polyester fiber composite structure having an enhanced brilliance and/or color depth, comprises (A) a dyed porous polyester fiber which has been produced (1) by preparing a polyester resin...
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4466931 |
Method for manufacturing microporous membrane
The starting materials for the practice of the present invention are (1) one or more organic monomers or oligomers which upon irradiation very rapidly undergo a polymerization reaction to form a...
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4454198 |
Porous, powdery polypropylene
Porous, powdery polypropylene is disclosed, obtained by providing a hot solution of polypropylene in pentaerythrol ester as solvent, slowly cooling said solution down to approximately room...
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4450129 |
Method of making miniature doll heads
A process is disclosed for making miniature doll heads. An oversized head is formed of a shrinkable plastisol including a plasticizer, and facial features are applied to the head using a shrinkable...
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4439389 |
Method for shapeforming acrylonitrile polymer aquagel film
Shapeforming acrylonitrile polymer film by providing acrylonitrile polymer aquagel film, conforming said aquagel film into the desired shape and while in said shape, heat-removing at least...
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4419308 |
Process for producing porous, film-like or fibrous structure of aromatic polyester
A process for producing a porous, film-like or fibrous structure of an aromatic polyester, which comprises (1) forming a substantially non-oriented film-like or fibrous structure by melt-molding...
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4416839 |
Wholly aromatic polyester composition, process for production thereof, and production therefrom of a film-like or fibrous article of a wholly aromatic polyester
A wholly aromatic polyester composition comprising (a) 100 parts by weight of a wholly aromatic polyester containing as a main component at least one compound selected from the group consisting of...
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4416934 |
Woven or knitted polyester multifilament fabric
A woven or knitted polyester multifilament fabric having a silk-like appearance and touch, comprised of polyester multifilament yarns containing one or more types of porous polyester filaments each...
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4405854 |
Combined denture mold dewaxer and curing basin
A basin for simultaneous or consecutive dewaxing and curing of denture molds is disclosed. The basin is generally box-shaped and is provided with three vertically-shaped trays of which the topmost...
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4388129 |
Production of bubble-free electrical laminates
Bubble- or void-free electrical laminates such as unclad or metal clad laminates are produced by impregnating a porous fibrous substrate with a solvent-free liquid resin capable of curing to a...
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4386129 |
Porous polymeric films
This invention relates to porous films having pores with polygonal cross sections and average pore diameters of about 3 to about 100 microns and the method for preparing these films. More...
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4379825 |
Porous electrophotographic toner and preparation process of making
Porous toner comprises a coloring matter and a binder, said toner being formed by obtaining a powder through a step of mixing and kneading under heat a toner preparing material including a coloring...
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4371454 |
Process for preparing spherical carbon material and spherical activated carbon
Spherical carbon material or a spherical activated carbon is prepared from an admixture of pitch, amorphous carbon and a viscosity-controlling agent by the process comprising the step of heating...
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4371493 |
Method of making bouncing silicone putty-like compositions
Silicone putty-like substance is made by mixing dimethyl silicone gum with a boron compound (e.g., boric acid) and a reinforcing filler, and making sheet stocks of the mixture. The sheet stocks are...
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4371485 |
Process for making hydrophilic polyester fiber
A new and useful hydrophilic polyester fiber and process of making same are disclosed; the fiber has a stable pore system exhibiting a moisture pickup (regain) of at least about 2 percent by weight...
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4364759 |
Methods for preparing anisotropic hollow fiber membranes comprising polymer of acrylonitrile and styrene and hollow fiber membranes produced therefrom
Anisotropic hollow fiber membranes comprising polymer of acrylonitrile and styrene are prepared by extruding a solution of a hollow fiber-forming polymer comprising polymer of acrylonitrile and...
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4361617 |
Hollow water-absorbing polyester filaments and a process for producing the same
Hollow water-absorbing polyester filaments each having a number of fine caves which are evenly distributed in at least a portion of the filament and through which the hollow is connected to the...
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4336307 |
Hollow water absorbing polyester filaments and a process for producing the same
Hollow water-absorbing polyester filaments, each having fine pores evenly distributed throughout the filament and extending approximately in parallel to the filament axis, are produced by...
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4323534 |
Extrusion process for thermoplastic resin composition for fabric fibers with exceptional strength and good elasticity
The object of this invention is to provide a composition of thermoplastic rubber which can be extruded into fibers and films with exceptional strength and good elasticity. Current formulations of...
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4310593 |
Absorbent articles cured with amine-epihalohydrin adducts
Water 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...
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4278633 |
Method of treating a water soluble capsule
A gelatin capsule is formed with an elongated portion and a bulb portion with a medicinal material therein for supply to a body through inserting the elongated portion in a body orifice. The...
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4275100 |
Video disc processing
A conductive video disc replica is cleaned by washing with an aqueous solution comprising an oxidizing agent, a base and a surfactant of a fluorocarbon added in an amount so that the solution has a...
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4266999 |
Catheter for long-term emplacement
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...
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4264676 |
Process for preparing superfine ion-exchange fibers
Superfine fibers of polyvinyl alcohol type having a single fiber diameter of 0.1-1.0μ and a fineness of 0.8-80×10 -4 d/f are baked in the presence of a dehydration catalyst so that the weight...
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4263843 |
Method and apparatus for controlled removal of excess slurry from organic foam
Method and apparatus for removing excess ceramic slurry from polyurethane foam used as a matrix for ceramic material in manufacturing filters for molten metals such as aluminum. The apparatus...
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4260577 |
Process for producing rubber hydrochloride sheet
An improved process for the production of rubber hydrochloride sheet is described in which a rubber sheet is advanced through a reaction zone essentially in one direction while totally immersed in...
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4259281 |
Process for reducing micro-voids in the extruded insulation of electric cables
A process for reducing micro-voids in cross-linked cable insulation without reducing the voltage breakdown strength thereof in which process the insulation, after cross-linking, is heated at a...
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4254182 |
Polyester synthetic fiber containing particulate material and a method for producing an irregularly uneven random surface having recesses and projections on said fiber by chemically extracting said particulate material
A polyester fiber having an irregularly uneven random surface, having nonuniform recesses and projections forming said surface satisfying the requirement 0.2 micron<X<0.7 micron where X is...
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4219517 |
Process for spinning dense hollow fiber cellulosic membrane
A dense hollow fiber cellulosic membrane which possesses outstanding permeability and strength characteristics and the method of preparation thereof is disclosed.
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4185058 |
Process for spinning hydrophilic acrylic fibers with improved coloring response to dyes
The invention relates to hydrophilic fibers and filaments with good coloring response to dyes from filament-forming hydrophobic synthetic polymers having a sheath-core structure with a highly...
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