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WO/2000/073203 |
This invention relates to a process for preparing a patterned layer of aligned carbon nanotubes on a substrate including: applying a photoresist layer to at least a portion of a surface of a substrate capable of supporting nanotube growt...
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WO/2000/063115 |
This invention relates to a process for the preparation of a substrate-free aligned nanotube film comprising: (a) synthesising a layer of aligned carbon nanotubes on a quartz glass substrate by pyrolysis of a carbon-containing material i...
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WO/2000/061675 |
Biocompatible and biodegradable, three-dimensional structures containing hyaluronic acid derivatives, obtained by the technique of precipitation induced by supercritical antisolvent (SAS), can be used in the field of medicine and surgery.
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WO/2000/058536 |
A fine and highly crystalline carbon fiber which has a fiber diameter of 1 $g(m) or less, has a distance between layer faces d¿002? of 0.335 to 0.34 nm as measured by the X-ray diffraction method, satisfies the formula d¿002? < 0.3448 ...
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WO/2000/058003 |
A combinatorial method is provided for the preparation and screening of heterogeneous catalysts. The method comprises the steps of: (I) providing a library of elemental catalysts; (II) reacting the catalysts with a carbon source to form ...
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WO/2000/058211 |
A catalyst system and method for making carbon fibrils is provided which comprises a catalytic amount of an inorganic catalyst comprising nickel and one of the following substances selected from the group consisting of chromium; chromium...
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WO/2000/053833 |
The invention relates to a method for producing shaped bodies, especially threads or foils, from at least one polymer of the groups consisting of polysaccharide, polysaccharide derivative or polyvinyl alcohol by forming a solution of the...
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WO/2000/050675 |
A carbon fiber and carbon sheet prepared from a waterless, solventless, melt-processable copolymer of acrylonitrile precursor resulting in carbon fibers and carbon sheets with improved orientation and mechanical properties.
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WO/2000/049135 |
A substrate for cell growth comprises a polysaccharide and a cell adhesion protein provided at the surface of the substrate. The polysaccharide may for example be an alginate and the cell adhesion protein may be fibronectin, vitronectin ...
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WO/2000/047716 |
Culturing of eukaryotic cells is effected using fibres having at least one open-topped channel formation on the mouth of which or within which individual cells adhere and grow under the culturing conditions.
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WO/2000/043580 |
This invention pertains to novel fibers made of $g(a)(1$m(7);3) polysaccharides, and a process for their production. The fibers of the invention have 'cotton-like' properties but can be produced as continuous filaments on a year-round ba...
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WO/2000/026138 |
The present invention discloses the process of supplying high pressure (e.g., 30 atmospheres) CO that has been preheated (e.g., to about 1000 °C) and a catalyst precursor gas (e.g., Fe(CO)¿5?) in CO that is kept below the catalyst prec...
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WO/2000/017426 |
A method for producing a mesophase pitch active carbon fiber comprises carbonizing a mesophase pitch non-fusbible fiber at a temperature from 600 °C to 900 °C, alkali-activating the fiber, immersing the thus obtained mesophase pitch ac...
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WO/2000/014397 |
A rocket motor assembly is insulated or thermally protected with a rocket motor ablative material formed from a prepreg. The prepreg contains at least an impregnating resin matrix and, as a precursor prior to carbonization, either carded...
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WO/2000/011338 |
A rocket motor assembly is insulated or thermally protected with a rocket motor ablative material formed from a prepreg. The prepreg contains at least an impregnating resin matrix and, as a precursor prior to carbonization, carded and sp...
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WO/2000/005440 |
An acrylonitrile-based precursor fiber for carbon fiber which is produced from an acrylonitrile copolymer containing 96.0 to 98.5 wt.% of acrylonitrile units and has a tensile strength of 7.0 cN/dtex or more, a tensile modulus of 130 cN/...
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WO/2000/000683 |
A process for preparing high strength carbon fiber from PAN-fiber wherein the time of the oxidation step is reduced from 30-90 minutes to about 8-15 minutes and product prepared therefrom.
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WO/1999/065821 |
One or more highly-oriented, multi-walled carbon nanotubes are grown on an outer surface of a substrate initially disposed with a catalyst film or catalyst nano-dot by plasma enhanced hot filament chemical vapor deposition of a carbon so...
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WO/1999/061511 |
A process for producing a polyamide from dicarboxylic acid monomer and diamine monomer comprises the steps of: (a) mixing molten dicarboxylic acid monomer and molten diamine monomer in equimolar amounts, thereby producing a molten reacti...
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WO/1999/058748 |
A process for forming carbon nanofibers by means of pyrolyzation with plasma in a reactor is disclosed. The process includes the steps of: providing, in a reactor, a first catalyst in the form of solid catalytic particles; applying a vac...
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WO/1999/058586 |
An acrylic fiber comprises an acrylic fiber polymer precursor having acrylonitrile in an amount from 90 to 98.0 wt.% of said fiber and a neutral vinyl monomer in an amount from greater than 0 to 7.0 wt.%, the fiber possessing hot-wet elo...
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WO/1999/050921 |
An electrode includes an electrically conductive matrix containing a disulfide group, wherein an S-S bond of the disulfide group is cleaved by electrochemical reduction and reformed by electrochemical oxidation. A plurality of carbon nan...
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WO/1999/048839 |
The invention concerns a multichannel porous ceramic fibre, preferably having a particular geometric shape. The invention also concerns a module comprising said fibres and further concerns a method for preparing said material as well as ...
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WO/1999/046782 |
The present invention relates to ferromagnetic metal particles comprising a core of a ferromagnetic metal or metal alloy, wherein the surface of the core is covered entirely with a layer of graphitic carbon.
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WO/1999/043608 |
A process for producing substantially pure hydrogen by contacting a stream of a hydrocarbon gas with a nickel or nickel-copper containing catalyst at a temperature in the range of about 400 to 900 °C. This results in the conversion of t...
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WO/1999/043877 |
A method and an apparatus for manufacturing a carbon fiber coil by heating in a reaction chamber (12) a raw gas which produces solid carbon when it is thermally decomposed, and a catalyst gas for promoting the thermal decomposition of th...
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WO/1999/043609 |
A process for producing carbon filaments or fibers and substantially pure hydrogen by contacting a stream of a hydrocarbon gas with a nickel or nickel-copper containing catalyst at a temperature in the range of about 400 to 900 °C. This...
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WO/1999/033536 |
New process for separating the isotropic and anisotropic (mesophase) phases of tars through hot filtration. The process is based on the differences of the softening points of the two phases and using an intermediary temperature between t...
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WO/1999/029940 |
A method for the production of elemental carbon fibers and carbon particles uses highly uniform catalyst particles, preferably made by laser pyrolysis. Preferred catalyst particles include elemental iron, iron carbides or iron sulfides, ...
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WO/1999/027166 |
The present invention provides a process and apparatus (10) for blow spinning continuous fibers. The process utilizes a blow spinning die (20) and a tensioning device (40) to preclude slack in the fiber. The present invention also provid...
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WO/1999/026721 |
The invention concerns a method which consists in producing a carbon fibre texture with a large surface from a rayon precursor and fixing a catalyst on the texture by impregnation or cation exchange. The carbon fibre texture has a porosi...
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WO/1999/025652 |
The present invention provides a powerful new method for producing, uniform sized and uniformly aligned nanotubes through catalytic pyrolysis of a hydrocarbon within the dense, uniform and parallel pores of alumina nano-templates. The ca...
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WO/1999/022052 |
The invention concerns a method for making a carbon fibre preform which consists in using at least one yarn or cable formed of continuous fibres derived from carbon precursor fibres previously subjected to an intermediate carbonization s...
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WO/1999/011846 |
A coiled carbon fiber of 0.01-5 $g(m)m in fiber diameter, 0.1-2000 $g(m)m in coil diameter, 0-50 $g(m)m in coil pitch and 100 $g(m)m-5 m in coil length, including a coiled carbon fiber having a clockwise-twined double spiral structure an...
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WO/1999/010572 |
An acrylonitrile-based precursor fiber obtained by spinning an acrylonitrile copolymer (which contains at least 90 wt.% acrylonitrile monomer units and has a carboxylate group content of 5.0x10?-5¿ to 2.0x10?-4¿ eq/g and a content of s...
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WO/1999/008971 |
Pipe sections for external roof or wall cladding are formed of bonded man-made vitreous fibre batts wherein the fibres have a viscosity at 1400 °C of 10 to 170 poise and a dissolution rate at pH 4.5 of at least 20 nm per day.
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WO/1999/008969 |
Pipe sections or external roof or wall cladding are formed of bonded man made vitreous fibre batts wherein the fibres have a viscosity at 1400 °C of 10 to 170 poise and a dissolution rate at pH 4.5 of at least 20nm per day.
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WO/1999/009270 |
Pipe sections or external roof or wall cladding are formed of bonded man-made vitreous fibre batts wherein the fibres have a viscosity at 1400 °C of 10 to 170 poise and a dissolution rate at pH 4.5 of at least 20 nm per day.
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WO/1999/006618 |
A process for producing hollow, single-walled carbon nanotubes by catalytic decomposition of one or more gaseous carbon compounds by first forming a gas phase mixture of carbon feed stock gas comprising one or more gaseous carbon compoun...
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WO/1999/005347 |
A method (50) of fabricating an amorphous carbon material for use as an electrode (20) in a rechargeable electrochemical cell (10) includes the steps of heating (62) a lignin material until it has fully cured, comminuting (68) the lignin...
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WO/1999/004073 |
A hollow carbon microcoil with the coil pitch of substantially zero, and a hollow ceramic microcoil or a hollow ceramic microfiber prepared by subjecting the hollow carbon microcoil to metallization or other treatments. The hollow carbon...
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WO/1999/000325 |
Carbonaceous powder particles and carbonaceous fibers the surface of each of which is coated with a thin boron nitride film and which satisfy the following relationships among the boron atom concentration C(B), carbon atom concentration ...
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WO/1998/045515 |
A reinforced fiber bundle which consists of a plurality of single yarns which are aligned or a plurality of reinforced bundles which are aligned in parallel are made to run through a plurality of rolls while they are bent to open the fib...
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WO/1998/045386 |
The present invention provides a process for thermosetting pitch fibers in reduced times, at low concentrations of oxygen and at higher temperatures than previously possible. Additionally, the present invention provides a pitch fiber whi...
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WO/1998/042620 |
A novel process for producing carbon nanotubes; a process for producing a nanotube film comprising many carbon nanotubes oriented in the direction of the film thickness; and a structure having a carbon nanotube film on the surface of a b...
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WO/1998/041678 |
The invention concerns a carbon precursor cellulose fibre texture impregnated with a composition containing at least a mineral constituent with a function promoting cellulose dehydration, and subjected to thermal treatment, consisting in...
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WO/1998/039250 |
A method for purifying a mixture comprising single-wall carbon nanotubes and amorphous carbon contaminate is disclosed. The method includes the steps of heating the mixture under oxidizing conditions sufficient to remove the amorphous ca...
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WO/1998/039251 |
A process utilizing a supported metal catalyst, a volatile species source, and a carbon source has been developed to produce carbide nanorods with diameters of less than about 100 nm and aspect ratios of 10 to 1000. The volatile species ...
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WO/1998/036113 |
A series of precursor fiber bundles for manufacture of carbon fiber that comprise a plurality of precursor fiber bundles for manufacture of carbon fiber, which have 30,000 or more filaments and which are joined to one another at terminal...
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WO/1998/031852 |
A melt article, e.g. a fibre or film, or a fusible acrylonitrile polymer can be cross-linked to render it infusible. The thusly cross-linked article can be oxidised and subsequently carbonised or graphitised in similar manner to articles...
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