Matches 101 - 150 out of 260 < 1 2 3 4 5 6 >
Match Document Document Title
5143817 Solid imaging system  
An apparatus and method for fabricating integral three-dimensional objects from successive layers of photoformable compositions by exposing the layers of the composition through a detachable...
5141579 ProducingSi.sub.3 N.sub.4 composite by sheeting a mixture of Si.sub.3 N.sub .  
An SiC whisker-reinforced Si 3 N 4 composite material comprising a sintered body of an Si 3 N 4 matrix having dispersed therein SiC whiskers, wherein said SiC whiskers are uniaxially...
5128111 Appartus for making inorganic webs and structures formed thereof  
A large thin web having a coherent crystal morphology throughout its extent is made on a continuous basis by drawing a meniscus of the web material from a hot melt thereof onto a heated support...
5116684 Composite ophthalmic lens  
An improvement in the epoxy plastic element of a laminated, glass-plastic, ophthalmic lens structure, and a method of effecting the improvement, are disclosed. The improved element is cast from a...
5116555 Method of and apparatus for controlling the manufacturing process in the continuous production of gypsum-cemented workpieces  
A method for controlling the manufacturing process in the continuous prodion of gypsum-cemented workpieces utilizing a belt-type press or similar equipment including a number of press segments...
5106560 Producing para-aramid pulp by means of gravity-induced shear forces  
A method for producing para-aramid pulp by using gravity-induced orientation of anisotropic para-aramid solutions. The solutions are those in which the para-aramid is still actively polymerizing....
5093205 Antistatic resin shaped article and process for preparation thereof  
A synthetic resin shaped article having good antistatic properties, composed of a substrate, at least part of which is covered with a synthetic resin surface layer integrated with the substrate....
5069839 Process for increasing the firing shrinkage of ceramic film casting mixtures  
The firing shrinkage of ceramic film casting mixtures can be increased by adding a high molecular weight mixed ester or a mixture of various high molecular weight mixed esters to them. The ceramic...
5051219 Automatic handling of green ceramic tapes  
Method for making blanks from a fragile, flexible material cast on a supporting strip and rolled to form a composite roll of the flexible material and strip. The method includes the process of...
5028372 Method for producing para-aramid pulp  
A method for producing para-aramid pulp includes forming a liquid, actively-polymerizing solution and subjecting the solution to orienting flow which produces an optically anisotropic liquid...
5006247 Asymmetric porous polyamide membranes  
Asymmatric, porous polyamide membranes permeable to fluid flow comprising: (A) a porous skin layer, and (B) adjacent to the skin layer, an integral, porous support layer having at least one...
5002710 Composition useful for producing thin ceramic sheets  
Long chain fatty acids such as stearic acid are novel additives in a composition comprising a polymer binder plus a ceramic powder and various other additives, which can be fired to become a thin,...
4992385 Polymer-coated optical structures and methods of making and using the same  
A method of treating the surface of an optical structure which comprises forming on the surface a thin layer of organic polymer using a solvent casting technique. Preferably the process includes...
4976901 Microporous membranes from isotactic polystyrene and syndiotactic polystyrene  
This invention relates to novel semi-permeable isotropic or anisotropic microporous membranes fabricated from a mixture of isotactic polystyrene and syndiotactic polystyrene and a method of...
4971744 Two-stage process for preparing aromatic polyamide film  
A process for preparing aromatic polyamide film wherein an aromatic diamine and an aromatic diacidchloride are dissolved in an amide polymerization solvent containing an inorganic salt, a partial...
4966742 Preparation of thin ceramic sheets  
Thin, free-standing ceramic precursor tapes are prepared from solutions comprising certain coordination complexes, thus eliminating the use of ceramic powders. The precursor tapes can be calcined...
4963266 Composition and process for separating fluid mixtures  
Disclosed are semipermeable fluid separation membranes prepared from polyaromatic polymers including aromatic repeat units of which at least five mole percent are substituted by moieties having...
4954127 Process for preparing an artificial vessel  
An artificial vessel having a compliance and a stress-strain curve approximate to those of a vital vessel, which comprises a porous part of an elastomer having pores which communicate between the...
4939214 Film comprised of at least one monomolecular layer and process for its preparation using a higher alkyl amine  
A film comprised of at least one monomolecular layer composed essentially of a polyimide having repeating units of the formula: ##STR1## wherein R 1 is a tetravalent organic group and R 2 is a...
4915894 Aromatic polyimide film and process for the preparation of the same  
Disclosed is an aromatic polyimide film which is well resistant to sagging and dimensional change in the heat treatment. The aromatic polyimide film is formed from a polymer solution which is...
4910293 Langmuir-Blodgett films of polymers having pendent C.sub.10 -C.sub.30 hydrocarbon groups  
An amphiphilic high polymer comprises a linear recurring unit containing at least divalent organic group (R 1 ) having at least two carbon atoms, at least divalent organic group (R 2 ) having at...
4904411 Highly loaded, pourable suspensions of particulate materials  
Slurries or suspensions for forming sintered ceramic or metallic articles are described as having a high volume fraction of sinterable particles, at least 55% by volume. while the slurries maintain...
4902466 Process for making lipid films suitable for liposomes  
A method for forming lipid films having a substantially uniform thickness and a ratio of the surface area of deposited film to lipid concentration of less than 600 cm 2 per mmole. Using a...
4893999 Apparatus for the continuous production of polymers and copolymers of water-soluble monomers  
The present invention relates to an apparatus for the continuous production of polymers and copolymers of water-soluble monomers particularly acrylic acid and/or methacrylic acid, optionally with...
4894159 Method of manufacturing a reverse osmosis membrane and the membrane so produced  
Reverse osmosis membranes are manufactured by casting a polysulfone casting composition comprising: (i) an aromatic polysulfone derivative having repeat units, at least an average of about 20%...
4883551 Manufacture of flexible sheet material  
A plurality of strands is introduced by a reciprocating weft laying device into a layer of paste-like bonding material deposited on the upper surface of an endless belt. A plurality of warp strands...
4863765 Method of multi-layer coating  
A method of simultaneously applying a plurality of liquid coating compositions to a moving web by the method of multi-layer coating; wherein the lowermost layer is comprised of water, with the wet...
4861411 Method of producing gel sheet for electrophoresis  
In a method of producing a gel sheet for electrophoresis comprising a gel membrane acting as the medium for electrophoresis composed of a hydrophilic polymer having a uniform thickness, two sheets...
4840673 Anisotropic cellulose articles, fibers, and films and method of producing same  
Lyotropic mesophase (liquid crystalline) solutions of cellulose are formed in an ammonia/ammonium thiocyanate solvent. The nature of the solution can be controlled to selectively produce lyotropic...
4776383 Apparatus for producing strip-like or foil-like products  
Juxtaposed nozzle openings apply the same or different melts to the surface of a moving cooler surface for producing thin metal strips or foils with a considerable width. The nozzle openings can be...
4774211 Methods for predicting and controlling the shrinkage of ceramic oxides during sintering  
A method of predicting the fired shrinkage of a ceramic oxide slurry which comprises measuring the ionic impurity concentration in the ceramic oxide slurry. A ceramic oxide slurry which exhibits a...
4762653 Process for preparing especially metallic and semi-metallic bands of small thickness  
The invention relates to the preparation of especially metallic or semi-metallic bands or sheets, particularly with a microcrystalline or amorphous structure. According to this process, an...
4752643 Transparent poly-p-phenylene-terephthalamide film  
There is presented a poly-p-phenyleneterephthalamide film which is excellent in transparency, sufficiently oriented not only in the MD direction but also in the TD direction of the film, having...
4752520 Reinforced concrete tile and its method of manufacture  
A concrete tile is disclosed having a preformed substrate member backing comprising a substantially rigid, polymeric material. The lower surface of the substrate member defines the shape of the...
4751139 Biaxially oriented film having high scratch and abrasion resistance  
A biaxially oriented and heat set film having improved abrasion resistance is described, whose distinguishing characteristics are that it has a density of more than 1.38 g/cm 3 and that the...
4699680 Process and apparatus for manufacturing element for electrophoresis  
A process of manufacturing an element for electrophotresis which comprises steps of: sticking a spacer continuously to both side portions of a support web which is rolled back continuously from the...
4675208 Coating method and apparatus  
A coating method wherein a part of coating liquid supplied from a liquid supplying device is circulated through a closed passage running somewhere between the liquid supply device and a liquid...
4670096 Process and apparatus for producing semi-conductor foils  
In the production of a semi-conductor foil by solidification of a liquid semi-conductor on a horizontal support, the improvement which comprises positioning a molding body on the horizontal...
4650618 Method for producing strip-like or foil-like products  
Juxtaposed nozzle openings apply the same or different melts to the surface of a moving cooler surface for producing thin metal strips or foils with a considerable width. The nozzle openings can be...
4627804 Sheet forming apparatus  
An apparatus for forming double-side polished sheet of thermoplastic resin has a first cooling roll for forming a sheet of thermoplastic synthetic resin thereon along a contact angle Θ 1 , a...
4603061 Process for preparing highly optically transparent/colorless aromatic polyimide film  
An aromatic condensation polyimide film that is approximately 90% transparent at 500 nm, useful for thermal protective coatings and the like and the process for preparing same are disclosed. An...
4600633 Polyethylene superthin film and a process for the production of the same  
A polyethylene superthin film having a thickness of at most 3 μm, a tensile modulus of at least 2000 kg/cm 2 , a breaking strength of at least 500 kg/cm 2 and a haze of at most 10% is produced by...
4599262 Electrically conductive polycarbonate laminates and their preparation  
The present invention relates to polycarbonate laminates consisting of an electrically conductive polycarbonate layer (A) containing carbon black or graphite, and an electrically insulating...
4587068 Method of making ceramic tapes  
A method of producing ceramic items which does not necessitate the use of high vapor pressure organic solvents, aqueous solvents, binders or plasticizers. A monomer is used as a vehicle for...
4560596 Decorative trim strips and process for making the same  
Trim strips are provided for decorating automobile doors and the like. The trim strips are of generally rectangular shape and have a length longer than the width of the door that is to be...
4525223 Method of manufacturing a thin ribbon wafer of semiconductor material  
A novel thin ribbon wafer of semiconductor having a polycrystalline structure composed of more than 50% of a grain having a grain size of more than 5 μm, a thickness of 5 to 200 μm, sufficient...
4523966 Process of producing silicon ribbon with p-n junction  
The disclosed process produces a silicon ribbon wafer with a p-n junction, by melting a raw silicon material, ejecting the molten silicon material onto a rotary cooling member so as to produce a...
4517049 Silicon ribbon growth wheel with edge defining grooves  
Apparatus and method for producing semiconductor ribbon directly from the molten state by contact with a moving chill surface wherein the chill surface has longitudinal grooves near its outer edges...
4486377 Process for reducing draw resonance in polymeric film  
A process for producing polymeric film substantially free of draw resonance under conditions and at rates which would otherwise cause draw resonance in polymeric film susceptible to draw resonance...
4478880 Method of fabricating polycrystalline silicon strips  
A fabrication method for use in making photocells consisting in depositing on the top face of a carbon ribbon (4) being moved horizontally in its lengthwise direction through an oven (9) a layer of...
Matches 101 - 150 out of 260 < 1 2 3 4 5 6 >