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Class 264/627 - Forming fiber


Subclass of Class 264 - Plastic and nonmetallic article shaping or treating: processes
Definition: Process wherein a relatively small, slender discrete mass
No. of patents: 49
Last issue date: 12/14/2010


1    
NumberTitleIssue Date
7850900Method of producing ceramic foams
A process for foaming ceramic foams, in which the ceramic foams are produced from a precursor or a mixture of precursors which contain at least one ceramic-forming element and liberates at least one volatile reaction product during an inorganic gelation process. In ...
12/14/2010
7326381Applications of photocurable pre-ceramic polymers
A process for fabricating ceramic composites employs a thermoplastic photo-curable pre-ceramic polymer in which the component is shape by a variety of standard composite fabrication techniques, such as filament winding, tape winding, and woven cloth winding. The pro...
02/05/2008
7306762Method of producing ceramic foams
A process for foaming ceramic foams, in which the ceramic foams are produced from a precursor or a mixture of precursors which contain at least one ceramic-forming element and liberates at least one volatile reaction product during an inorganic gelation process. In ...
12/11/2007
7255781Production of aligned microfibers and nanofibers and derived functional monoliths
The present invention comprises a method for producing microfibers and nanofibers and further fabricating derived solid monolithic materials having aligned uniform micro- or nanofibrils. A method for producing fibers ranging in diameter from micrometer-sized to nano...
08/14/2007
7125514Process for producing reinforcing SiC fiber for SiC composite material
A mixed polymer liquid is prepared by mixing a polycarbosilane-dissolved organic solvent with poly(methylsilane) and moderated to viscosity of 5–20 Pa·s by heat-treatment to promote partial cross-linking reaction. The mixed-polymer is then melt-spun to fiber at 2...
10/24/2006
7033537Process for producing continuous alumina fiber blanket
A process for producing a continuous alumina fiber blanket by heat treating an alumina fiber precursor formed from a spinning solution containing an aluminum compound, by using a specific high-temperature furnace capable of high-temperature heat treatment. According...
04/25/2006
7005184Silicon carbide fiber having boron nitride layer in fiber surface and process for the production thereof
A silicon carbide fiber having a boron nitride layer in a fiber surface and having the following properties of a to c, a. the existent ratio of boron slopingly increases towards the surface of the fiber, b. the exi...
02/28/2006
6881693Zirconia-containing inorganic fiber and process for the production thereof
There are provided a high-strength zirconia-containing inorganic fiber having excellent alkali resistance, oxidation resistance, catalyst function and/or catalyst-carrying function and a process for the production thereof. The zirconia-containing inorganic fiber is ...
04/19/2005
6780370Process for producing microceramic tubes by radiation exposure of silicon-based polymers
A process for producing a SiC ceramic microtube by oxidizing the surface of an organosilicon polymer to become infusible by exposure to an ionizing radiation, extracting the uncrosslinked central portion of the fiber with an organic solvent to make a hollow silicon ...
08/24/2004
6777361Ceramic composite
A ceramic composite material, for example, a ceramic molded body or a layer obtained by pyrolysis of a starting mixture, containing at least one polymer precursor material and at least one filler, which has an average particle size of less than 200 nm. Such a compos...
08/17/2004
6602369Process for producing laminated sheet comprising alumina fiber precursor
The present invention relates to a process for producing a laminated sheet comprising an alumina fiber precursor, which process comprises spinning out an alumina fiber precursor from a solution mainly comprising an aluminum compound, falling and stacking ...
08/05/2003
6495483Linear metallocene polymers containing acetylenic and inorganic units and thermosets and ceramics therefrom
Transition metal-containing ceramic or carbonaeous material are formed from novel linear polymers containing a random distribution of repeating acetylenic units, organotransition metal complexes, siloxane, boron, silicon, and/or carborane-siloxane units. ...
12/17/2002
6245283Method for production of fiber-bond type ceramic material and engine parts formed thereof
A fiber-bond type ceramic material 4 is produced by using as raw material fibers 1 inorganic fibers of Si--M--C--O synthesized by melt spinning polycarbosilane, then infusibilizing the produced threads, and firing the set threads, forming from the raw mat...
06/12/2001
6103178Method for producing ceramic fibers from blends of siloxane resins and carborane siloxane oligomers
The present invention relates to a method for the formation of amorphous boron silicon oxycarbide fibers and crystalline boron-doped silicon carbide fibers wherein the method comprises preparing a blend of a siloxane resin and a carborane-siloxane oligome...
08/15/2000
6069102Creep-resistant, high-strength silicon carbide fibers
A high strength, high creep resistant, boron-doped, silicon carbon fiber having no boron nitride coating, originally formed by sintering, is produced by exposing the fiber to a nitrogen atmosphere at a temperature equal to or preferably elevated above the...
05/30/2000
6054094Method for manufacture composite fiber
A method for the manufacture of a ceramic composite fiber in which a second phase is dispersed within a matrix fiber, wherein the matrix consists of a substance selected from alumina, zirconia, mullite, YAG, silica, magnesia, nitrides, carbides, metals, a...
04/25/2000
5958324Method for formation of crystalline boron-doped silicon carbide and amorphous boron silicon oxycarbide fibers from polymer blends containing siloxane and boron
The present invention relates to a method for the formation of amorphous boron silicon oxycarbide fibers and crystalline boron-doped silicon carbide fibers comprising: preparing a blend of a siloxane resin and a boron-containing polymer, forming the blend...
09/28/1999
5928978Continuous method of producing silicon carbide fibers
This invention pertains to a method for production of polycrystalline ceramic fibers from silicon oxycarbide (SiCO) ceramic fibers wherein the method comprises heating an amorphous ceramic fiber containing silicon and carbon in an inert environment compri...
07/27/1999
5885519Process of preparing silicon-boron-nitrogen-carbon fibers
The invention relates to new amorphous, high-strength SiBN(C) fibres which are at the same time resistant to high-temperature creep, their production and use. The fibres have a strength at room temperature of >2.5 GPa, a modulus of elasticity of >250 GPa ...
03/23/1999
5840242Amorphous silicon oxycarbide and crystalline silicon carbide fibers from curable alkenyl or alkynyl functional siloxane resins
The present invention relates to a method for preparing a ceramic fiber from alkenyl or alkynyl functional resins and to the ceramic fibers produced therefrom. The method comprises (A) forming a fiber from a siloxane resin comprised of R1a...
11/24/1998
5817274Method of manufacturing aluminum nitride
Disclosed is a method of manufacturing aluminum nitride, which comprises the steps of preparing a mixed gas consisting essentially of an ammonia gas and at least 0.5% by volume of a hydrocarbon gas, calcining γ-Al2 O3 or a precursor...
10/06/1998
5814271Process of producing fibers from curable alk-1-enyl ether functional siloxane resins
The present invention relates to a method for preparing a ceramic fiber wherein the method comprises (A) forming a green fiber from an alk-1-enyl ether functional siloxane resin of the general formula (R1 SiO3/2)q (R2...
09/29/1998
5792416Preparation of boron-doped silicon carbide fibers
A method of preparing polymer derived silicon fibers comprising the steps of providing a spin dope solution comprising a silicon carbide forming organosilicon polymer, preferably polycarbosilane, a solvent, a soluble boron precursor, preferably solid boro...
08/11/1998
5783139Ceramic materials
A ceramic fiber is made by spinning a plurality of polymeric materials each including at least one ceramic precursor into a composite fiber, and then pyrolysing the composite fiber to form a composite ceramic fiber of non-homogeneous composition. A prefer...
07/21/1998
5705122A method of making a composite ceramic fiber from pre-ceramic polymers
The invention pertains to a composite ceramic fibre which is made from a self-supporting composite polymeric fibre by the conjugate spinning of at least two dissimilar pre-ceramic polymers in shapes varying from cylindrical to ribbon-like, and pyrolysing ...
01/06/1998
5670103Method for making ceramic fibers from a water soluble pre-ceramic polymer solution
A method of making ceramic fibers from a water soluble pre-ceramic polymer solution by forming fibers from a water soluble pre-ceramic polymer solution, drying the formed fibers at a first temperature ranging between 600° C.-750° C. at a temperature hea...
09/23/1997
5575964Method for producing silica-alumina fiber
Silica-alumina fibers having good mechanical strength and heat resistance are produced by mixing a polyaluminoxane which comprises repeating units of the formula: ##STR1## in which X is an alkyl group, an alkoxy group or a hydroxy group, a silic...
11/19/1996
5503817Curing of preceramic articles with gaseous hydrogen halide
A novel curing process for preceramic organosilicon polymers is disclosed which involves contact with a gaseous hydrogen halide....
04/02/1996
5288444Controlled resistivity ceramic fibers and process for making them
Ceramic fibers formed by the pyrolysis of organosilicon preceramic polymers are provided with increased resistivity by treating the fibers in air at temperatures of less than 1,000° C. to oxidize the free carbon content of the fibers....
02/22/1994
5238742Polymer derived ceramic fibers having improved thermal stability
The present invention relates to ceramic fibers of the Si-C-N-O series with a diameter less than about 20 micrometers. It has been unexpectedly found that the thermal stability of these fibers can be increased by minimizing the impurity content, primarily...
08/24/1993
5207861Process for producing a high strength and high toughness sinter
The high-strength and high-toughness sinter of the present invention includes a crystal agglomerate maintaining a fibrous shape and composed of crystals of SiC and MC1-x wherein M is Ti and/or Zr and x is a number of 0 or more but less than 1. ...
05/04/1993
5069854Alumina fiber with carbon inclusion and a method of producing the same
An electrically conductive alumina fiber which heretofore known only as electrically insulative is now provided, which comprises an aluminum oxide matrix, and a continuous phase of carbon in the aluminum oxide matrix, the continuous phase of carbon afford...
12/03/1991
4997601Process for dry spinning thermally sensitive organosilicon preceramic fibers with production of ceramic fibers therefrom
Preceramic fibers are produced by dissolving a solid organosilicon preceramic polymer in a solvent to form a spinning solution containing at least seventy percent polymer solids, dry spinning and extracting solvent in the presence of a non-oxidizing gas a...
03/05/1991
4961889Process for producing inorganic fiber
A process for producing an inorganic fiber superior in stretchability, which comprises; heating either a solution of a polymetalloxane in an organic solvent, the polymetalloxane content in the solution being at least 85% by weight and the viscosity of the...
10/09/1990
4931239Alumina fiber structure and process for its production
Alumina fiber structures prepared by (i) preparing precursor fibers by spinning a viscous spinning solution containing compounds of metals including aluminum and an organic polymer compound in which the proportion of alumina in the total metals in the sol...
06/05/1990
4916093Method of producing continuous inorganic fiber consisting of Si, N and O
A continuous inorganic fiber consisting of Si, N and O has excellent physical, chemical and electrically insulating properties, is superior to carbon fiber in wettability with metal, is low in reactivity with metal, and can be used not only as a reinforci...
04/10/1990
4873039Method for producing shaped articles of ceramics
Forming a shaped article of polysilazane, contacting this shaped article with dry ammonia at a temperature of 20°-200° C. to thereby effect infusibilization, and finally subjecting the ammonia-treated product to further heat treatment at a higher temper...
10/10/1989
4869854Process for manufacturing organic silazane polymers and ceramics therefrom
A process for manufacturing an organic silazane polymer which comprises reacting ammonia with a mixture of at least one compound selected from the group consisting of organic silicon compounds of the following formulae (I) and (II) ##STR1## and ...
09/26/1989
4847027Infusible preceramic polymers via nitric oxide treatment
A method is disclosed for the preparation of ceramic materials or articles by the pyrolysis of preceramic polymers wherein the preceramic polymers are rendered infusible prior to pyrolysis by exposure to gaseous nitric oxide. Ceramic materials with low ox...
07/11/1989
4833107Method for producing nitride-base ceramics
Fired nitride-base ceramics, i.e., silicon nitride or oxynitride, having a low carbon content and, therefore, low electrical and thermal conductivities, can be produced by heat treating a ceramic precursor comprising polysilazane, polysiloxazane or polyca...
05/23/1989
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