Patents
Patents for D01F 9 - Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments (10,099)
07/1990
07/04/1990EP0375974A2 Chlorine-containing polysubstituted silazane polymers, method for their preparation, and their use for preparing silicon nitride-containing ceramic materials
07/04/1990EP0375973A2 Polymeric chlorosilazanes, process for preparing them and process for making ceramic materials containing silicon nitride
07/04/1990EP0375972A2 Polymeric hydridochlorosilazanes, method for preparing these and use of these polymers for preparing ceramic materials containing silicon nitride
07/03/1990US4939225 Polymeric hydridosilazanes, processes for the preparation thereof, silicon nitride-containing ceramic materials which can be prepared therefrom, and the preparation thereof
07/03/1990US4939222 Boron/nitrogen preceramic polymers and boron nitride ceramic materials produced therefrom
07/03/1990US4938941 Partially carbonized polymeric fibrous material having an electrical resistivity of enhanced stability
06/1990
06/28/1990WO1990007023A1 Carbon fibrils and a catalytic vapor growth method for producing carbon fibrils
06/28/1990WO1990006969A1 Dispersed systems and method of manufacture
06/28/1990EP0353296A4 Carbon fibrils.
06/27/1990EP0375397A2 Process for producing graphite whiskers
06/27/1990EP0375158A2 Improved zirconium oxide fibers and process for their preparation
06/27/1990EP0374925A2 High density graphite fiber and method of manufacture thereof
06/27/1990CN1043322A Chloro-silazanpolymers, process for producing same, ceramic material coutaining silicon nitride and process for preparaing thereof
06/26/1990US4937212 Zirconium oxide fibers and process for their preparation
06/26/1990CA1270611A1 Stabilization of pitch fiber
06/20/1990CN1043142A Polymeric hydridochlorsilazane, process of preparation, ceramic material-containing silicon nitride from them and preparation thereof
06/20/1990CN1043141A Polymers of polysubstitution silizane containing chlorine, process of preparation thereof and ceramic materials containing silicon nitride from them and its preparation
06/20/1990CN1043140A Polymeric ethylenbridged chlorsilazane, process of preparation thereof, ceramic material containing azane from them and preparation of ceramic material containing silicon nitride
06/20/1990CN1043139A Polymeric chlorsilazane, process of preparation, ceramic materials containing silicon nitride from them and preparation thereof
06/20/1990CN1008444B Method for preparing the intermediate phase bituminous
06/19/1990US4935180 Formation of melt-spun acrylic fibers possessing a highly uniform internal structure which are particularly suited for thermal conversion to quality carbon fibers
06/19/1990CA2003559A1 Zirconium oxide fibers and process for their preparation
06/13/1990EP0373007A1 Multidirectional ceramic fibre textures based on silicon compounds, their manufacture and composites thus reinforced
06/13/1990EP0372931A2 Continuous, ultrahigh modulus carbon fiber
06/13/1990EP0372379A2 Chlorinated silizane polymers, process for their preparation, process for the preparation of silicon nitride-containing ceramic materials
06/13/1990EP0372378A2 Oligomeric silazanes and methods for their preparation
06/13/1990EP0372377A2 Polymeric ethylene-bridged chlorosilazanes, process for their preparation and preparation of silicon nitride-containing ceramic materials obtainable therefrom
06/12/1990US4933128 Formation of melt-spun acrylic fibers which are well suited for thermal conversion to high strength carbon fibers
06/12/1990US4932404 Absorbable surgical suture
06/06/1990EP0371846A1 Process for the preparation of silicon carbonitrides from polycarbosilanes
06/05/1990US4931316 Preparation of interstitial titanium ceramic fibers
06/05/1990US4931233 Method for adding additives during manufacture of carbon fiber
06/05/1990US4931162 Process for producing clean distillate pitch and/or mesophase pitch for use in the production of carbon filters
06/05/1990US4931100 Boron-containing preceramic blend and fiber formed therefrom
06/03/1990CA2004405A1 Polymeric chlorosilazanes, process for their preparation, ceramic materials containing silicon nitride which can be manufactured therefrom, and their manufacture
06/03/1990CA2004404A1 Chlorine-containing silazane polymers, process for their preparation, ceramic materials containing silicon nitride which can be prepared from them, and their preparation
06/03/1990CA2004401A1 Polysubstituted chlorine-containing silazane, polymers, process for their preparation, ceramic materials containing silicon nitride which can be manufactured therefrom, and their manufacture
06/03/1990CA2004400A1 Polymeric ethylene-bridged chlorosilazanes, process for their preparation, ceramic materials which can be prepared from them containing silicon nitride, and their preparation
06/03/1990CA2004399A1 Polymeric hydridochlorosilazanes, process for their preparation, ceramic materials containing silicon nitride which can be manufactured therefrom, and their manufacture
06/03/1990CA2004395A1 Oligomeric silazanes and process for their preparation
05/1990
05/30/1990EP0370878A1 Process for the preparation of silicon nitride from polycarbosilanes
05/23/1990EP0369787A2 Membrane for separation of water-alcohol mixed liquid and process for preparation thereof
05/22/1990US4927622 Zirconia fibers
05/22/1990US4927620 From pitch
05/22/1990CA1269283A1 Non-organic/polymer fiber composite, method of making same and use including dimensionally stable separator
05/17/1990DE3837358A1 Process for the production of finely divided or fibrous precursors of activated carbon from pitch-like bitumenous substances and substances containing nitrogen or nitrogen and heavy metal, from which catalytically active activated carbons can be produced
05/16/1990EP0368688A1 Polymers containing nitrogen and boron, their preparation and their use as boron nitride precursors
05/16/1990EP0368370A1 Refractory fibers of amorphous alumina and organic residue
05/15/1990US4925604 Process for preparing a carbon fiber of high strength
05/15/1990US4925547 Process for producing pitch for the manufacture of high-performance carbon fibers together with pitch for the manufacture of general-purpose carbon fibers
05/15/1990US4925539 Metal fibers obtained by bundled drawing
05/09/1990CN1041980A Improvements in formation of melt-spun acrylic fibers possessing highly uniform internal structure which are particularly suited for thermal convertion to quality carbon fibers
05/09/1990CN1041959A Method of controlled catalytic polymerization of composition polysilazane
05/09/1990CN1041958A Method of controlled catalytic polymerization of composition polysilazane
05/08/1990US4923692 Process for producing pitch-type carbon fibers
05/08/1990US4923648 Melts spinning pitch material through spinning nozzles, followed by infusible treatment and carbonization
05/08/1990US4923637 High conductivity carbon fiber
05/08/1990CA1268723A1 Pressure settling of mesophase
05/02/1990EP0366539A2 Pitch-based activated carbon fibers and process for preparing the same
05/01/1990US4921686 Method of carbonizing and activating fiber materials
05/01/1990US4921657 Method for densification of amorphous ceramic material
05/01/1990US4921656 Formation of melt-spun acrylic fibers which are particularly suited for thermal conversion to high strength carbon fibers
04/1990
04/25/1990CN1041604A Synthetic method of polymers of boracium and nitrogen based on boron nitride precursor and products obtained
04/25/1990CN1007740B Multi-component polyacrylonitrile raw filment for carbon fiber
04/24/1990US4919871 Forming glass fibers from sol-gel compositions
04/24/1990US4919860 Manufacture of porous carbon membranes
04/18/1990EP0364339A1 Process for controlling the catalytic polymerization of a polysilazane composition
04/18/1990EP0364338A1 Process for controlling the catalytic polymerisation of a polysilazane composition
04/18/1990EP0364323A2 Process for the preparation of polymers containing boron and nitrogen as precursors of boron nitride, and products obtained
04/18/1990EP0364244A1 Improved process for the production of mesophase pitch
04/18/1990CA2000858A1 Carbon fibers having high strength and high modulus of elasticity and polymer composition for their production
04/17/1990US4917866 Oxidizing silicon powder to monoxide, carbonizing in reducing gas; continuous, high speed
04/17/1990US4917836 Process for producing high-strength, high-modulus carbon fibers
04/11/1990EP0363054A2 Silicon carbide fibre and production thereof
04/11/1990EP0362898A2 Apparatus and method for separating gases
04/11/1990CN1041124A Apparatus for manufacture of metal fiber from spherical metal powder particles
04/10/1990US4916093 Method of producing continuous inorganic fiber consisting of Si, N and O
04/10/1990US4915984 Heat treating nitrogen heterocycle polymer before graphitizing
04/10/1990US4915926 Balanced ultra-high modulus and high tensile strength carbon fibers
04/06/1990CA2000221A1 Silicon carbide fibre and production thereof
04/05/1990WO1990003458A1 Improvements in and relating to fibrous activated carbons
04/03/1990US4913889 High strength high modulus carbon fibers
03/1990
03/27/1990CA1267164A1 Microcrystalline transition metal oxide spinel articles
03/22/1990WO1990002618A1 Device for making metal filaments from spherical particles of metal powder
03/21/1990EP0236675B1 Process for producing modified pitch and its use
03/21/1990CN1040638A Improvements in formation of melt-spun acrylic fibers which are particularly suited for thermal conversion to high strength carbon fibers
03/21/1990CN1040608A Process for producing pitch for manufacture of high-performance carbon fibers together with pitch for manufacture of general-purpose carbon fibers
03/20/1990CA1266938A1 Process for preparing acrylonitrile-based filaments for carbon fibers free of agglutination
03/15/1990DE3829986A1 Process for increasing the mesophase content in pitch
03/14/1990EP0358086A1 Process for increasing the amount of mesophase in pitch
03/14/1990EP0358048A1 Process for producing pitch for the manufacture of high-performance carbon fibers together with pitch for the manufacture of general-purpose carbon fibers
03/13/1990US4908340 Non-oxide sintered ceramic fibers
03/08/1990WO1990002042A1 Fluorinated, carbonaceous articles
03/08/1990WO1989012655A3 A process for making polymeric products of high tensile strength
03/07/1990EP0357492A1 Process for the thermal treatment of ceramic fibres based on silicon and carbon, and like fibres having a layered structure
03/07/1990EP0196317B1 Non-organic/polymer fiber composite, method of making same and use including dimensionally stable separator
03/06/1990US4906763 Boron nitride preceramic polymers
03/06/1990US4906426 Process for producing an alumina-silica-chromia ternary fiber
02/1990
02/28/1990EP0355932A2 Fluorinated, carbonaceous articles
02/28/1990EP0355764A2 Improvements in the formation of melt-spun acrylic fibers
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