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Class Information
Number: 423/447.1
Name: Chemistry of inorganic compounds > Carbon or compound thereof > Elemental carbon > Fiber, fabric, or textile
Description: Products and processes ... wherein the product is substantially pure carbon in the form of a slender threadlike structure (fiber) a woven, knitted or fetted sheet material (fabric) or a woven fabric or cloth (textile).


Sub-classes under this class:

Class Number Class Name Patents
423/447.9 Carbonizing cellulosic material 29
423/447.8 Controlling varying temperature or plural heating steps 86
423/447.3 From gaseous reactants 265
423/447.7 In specific atmosphere (other than vacuum or air) 113
423/447.6 Including reaction with gaseous oxygen 190
423/447.4 Prior treatment before carbonization (except with gaseous oxygen) 263
423/447.2 Product 375


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
4902563 Carbonaceous fiber or fiber assembly with inorganic coating Feb. 20, 1990
4898723 Method for producing high strength, high modulus mesophase-pitch based carbon fibers Feb. 6, 1990
4895712 Process for producing carbon fiber and graphite fiber Jan. 23, 1990
4892722 Method for producing high strength, high modulus mesophase-pitch-based carbon fibers Jan. 9, 1990
4882139 Improved production of carbon fibers Nov. 21, 1989
4874502 Method of purifying coal tars for use in the production of carbon products Oct. 17, 1989
4867852 Electrolytic method for after-treatment of carbon fiber Sep. 19, 1989
4855091 Method for the preparation of carbon filaments Aug. 8, 1989
4855122 Method for producing chopped strands of carbon fibers Aug. 8, 1989
4849200 Process for fabricating carbon/carbon composite Jul. 18, 1989
4837076 Carbonaceous fibers with spring-like reversible deflection and method of manufacture Jun. 6, 1989
4832932 Carbon fiber for composite material May. 23, 1989
4822587 High modulus pitch-based carbon fiber and method for preparing same Apr. 18, 1989
4816242 Production of partially carbonized polymeric fibrous material having an electrical resistivity of enhanced stability Mar. 28, 1989
4816195 Process of making a loosely formed non-woven mat of aligned carbon fibers Mar. 28, 1989
4814121 Method for spinning a petroleum-origin mesophase Mar. 21, 1989
4814157 Carbon fibers and method for producing same Mar. 21, 1989
4808475 Highly electroconductive graphite continuous filament and process for preparation thereof Feb. 28, 1989
4803123 Process for production of fibrous carbon material Feb. 7, 1989
4788050 Process for producing pitch-based carbon fibers Nov. 29, 1988
4781908 Process for the infusibilizing treatment of pitch fiber Nov. 1, 1988
4775589 Coaltar pitch based carbon fiber having high Young's modulus Oct. 4, 1988
4766013 Carbon composite article and method of making same Aug. 23, 1988
4746470 Process for the preparation of carbon fibers having structure reflected in cross sectional view thereof as random mosaic May. 24, 1988
4728395 Controlled resistivity carbon fiber paper and fabric sheet products and method of manufacture Mar. 1, 1988
4704333 Pitch conversion Nov. 3, 1987
4689947 Apparatus and method for reducing broken fibers on the surface of a carbon fiber yarn bundle Sep. 1, 1987
4686096 Chopped carbon fibers and methods for producing the same Aug. 11, 1987
4685940 Separation device Aug. 11, 1987
4671950 High-strength carbonaceous fiber Jun. 9, 1987
4659624 Hybrid and unidirectional carbon-carbon fiber reinforced laminate composites Apr. 21, 1987
4628001 Pitch-based carbon or graphite fiber and process for preparation thereof Dec. 9, 1986
4627944 Method for producing a carbon sheet and a fuel cell separator Dec. 9, 1986
4624102 Method for reducing broken fibers on the surface of a carbon fiber yarn bundle Nov. 25, 1986
4610860 Method and system for producing carbon fibers Sep. 9, 1986
4603042 Method for making carbon fibers Jul. 29, 1986
4600572 Ultrahigh strength carbon fibers Jul. 15, 1986
4588538 Process for preparing tapes from thermoplastic polymers and carbon fibers May. 13, 1986
4581123 Custom blended precursor for carbon artifact manufacture Apr. 8, 1986
4579645 Starting pitch for carbon fibers Apr. 1, 1986
4576810 Carbon fiber production Mar. 18, 1986
4575412 Method for producing a precursor pitch for carbon fiber Mar. 11, 1986
4575411 Process for preparing precursor pitch for carbon fibers Mar. 11, 1986
4565649 Graphite intercalation compounds Jan. 21, 1986
4555393 Method for making carbon microfibers Nov. 26, 1985
4554148 Process for the preparation of carbon fibers Nov. 19, 1985
4552743 Process for producing carbon fiber Nov. 12, 1985
4548703 Pitch for direct spinning into carbon fibers Oct. 22, 1985
4548704 Pitch for direct spinning into carbon fibers derived from a steam cracker tar feedstock Oct. 22, 1985
4535027 High strength polyacrylonitrile fiber and method of producing the same Aug. 13, 1985

1 2 3 4 5 6 7 8 9 10 11


 
 
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