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序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
161 Method for producing carbon-carbon composite materials US711354 1991-06-04 US5246639A 1993-09-21 Minoru Takabatake
A method for producing high density, high strength carbon-carbon composite material, is provided by using pitch-based carbonaceous fibers carbonized at a temperature lower than 2200.degree. C. or structures, including said carbonaceous fibers as a principal constituent, as a reinforcement material, impregnating said reinforcement material with a carbonaceous material such as pitch or the like and then heat treating said impregnated material.
162 Preparation of activated carbons by impregnation with a boron compound and a phosphorus compound US476362 1990-07-19 US5202302A 1993-04-13 John M. D. De La Pena; Richard A. Roberts
A process is provided for preparing fibrous or film type activated carbon including the steps of carbonizing a cellulosic material and activating the resulting carbon, each stop occurring at a temperature between 200.degree. C. and 1100.degree. C. in an oxidation-suppressing atmosphere, in which, prior to activation, the cellulosic material or carbon is impregnated with at least one boron-containing compound and at least one phosphorus-containing compound. This impregnation treatment greatly increases the activation rate, so reducing the activation time and therefore energy costs. Higher levels of production of fibrous activated carbons can thus be achieved.
163 Method for producing graphite fiber US600894 1990-10-22 US5167945A 1992-12-01 Hiroyasu Ogawa; Tetsuro Shigei; Tomoaki Kanno
A method for producing graphite fiber comprising graphitizing carbon fiber having a strength of 500 kgf/mm.sup.2 or more and a modulus of elasticity of from 27,000 to 33,000 kgf/mm.sup.2, and having at least on the surface of the fibers, from 0.2 to 2% by weight of an epoxy resin as a sizing agent, from 0.005 to 0.10% by weight of silicon and 0.005 to 0.02% by weight of phosphorus based on the weight of carbon fiber having said epoxy resin, silicon and phosphorus.
164 Method of producing bromine-treated graphite fibers US581267 1990-09-12 US5151261A 1992-09-29 Hidenori Yamanashi
The method of producing bromine-processed graphite fibers comprises preparing gas phase grown carbon fibers by bringing a substrate carrying thereon ultrafine particles of metal catalyst into contact with hydrocarbon compound under a high temperature, graphitizing the thus obtained fibers to obtain graphite fibers having such a crystal structure as carbon hexagonal network face is substantially in parallel with the axis of fibers and is oriented coaxially, and then bringing the thus obtained graphite fibers and bromine at a temperature lower than 60.degree. C. and for a time at least for 10 min.. In this case, the specific value for the length of the repeat distance along the c axis direction in the crystals is within a range from 10 to 40 .ANG..
165 Buoyant coated fibers US164605 1988-03-07 US4897303A 1990-01-30 Francis P. McCullough, Jr.; R. Vernon Snelgrove
A buoyant article which can be used for floatation and/or insulation comprising a coated batting, felt or non-woven web of resilient shape reforming elongatable non-linear carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1 and said coating comprising a water insoluble hydrophobic cured or set substance.
166 Process for the infusibilizing treatment of pitch fiber US923866 1986-10-28 US4781908A 1988-11-01 Yojiro Hara; Atsuki Kodama
The present invention relates to a process for the infusibilization of pitch fiber which comprises, in the production of pitch type carbon fiber, attaching a powder of solid lubricant to a pitch fiber and then subjecting the pitch fiber to an infusibilizing treatment. According to the present invention, the use of oxidant used in prior processes can be excluded, the process can be operated with a high safety, and the period of time required for the infusibilization can be shortened. Further, the infusibilized fiber obtained according to the invention can directly be introduced into the carbonization process, without any particular washing treatment and the like.
167 Inorganic fibrous material as reinforcement for composite materials and process for production thereof US80305 1987-07-31 US4770935A 1988-09-13 Takemi Yamamura; Toshihiro Ishikawa; Masaki Shibuya; Yoshiharu Waku
An inorganic fibrous material for reinforcing composite materials, said fibrous material composed of a central layer and a surface layer, whereinthe surface layer is formed of an inorganic material composed of(i) an amorphous material consisting substantially of Si, M, C and O, wherein M is Ti or Zr, or(ii) an aggregate consisting substantially of ultrafine crystalline particles of beta-SiC, MC, a solid solution of beta-SiC and MC, and MC.sub.1-x having a particle diameter of not more than 500 .ANG. wherein M is as defined above and x is a number represented by 0<x<1, and optionally containing amorphous SiO.sub.2 and MO.sub.2, or(iii) a mixture of the amorphous material (i) and the aggregate (2), andthe central layer is formed of an inorganic material other than said inorganic material; and a process for production thereof.
168 Highly electroconductive graphite continuous filament and process for preparation thereof US596549 1984-04-04 US4666736A 1987-05-19 Kiichiro Matsumura; Akio Takahashi; Jun Tsukamoto
A highly electroconductive graphite continuous filament is described, which is composed of a carbon filament as a substrate and a graphite layer having a layer spacing d (0,0,2) of not larger than 3.363 angstroms as an outer skin layer. The graphite continuous filament is prepared by depositing easily graphitizable carbon on the substrate and heat-treating the carbon-deposited substrate at a temperature of at least 2,500.degree.C.
169 Sized carbon fibers capable of use with polyimide matrix US276108 1981-06-22 US4394467A 1983-07-19 Robert Edelman
Carbon fibers are provided which bear an improved finish coating upon the surface which is capable of withstanding the high temperatures (e.g., above 500.degree. F.) commonly encountered during the formation of composite structures employing a polyimide matrix. The sized carbon fibers prior to the curing to form a rigid polyimide coating are flexible, may be readily handled without significant damage, and are amenable to good impregnation with the matrix resin thereby facilitating the formation of quality composite structures. The finish comprises a mixture of selected precursors for the formation of a rigid polyimide (as described). More specifically, the size composition is formed from at least one aromatic diamine, at least one aromatic dianhydride, and at least one aromatic tetracarboxylic acid diester. A film-forming polyamic acid oligomer readily forms and is present as an intermediate reaction product within the finish coating and the aromatic tetracarboxylic acid diester has been found to beneficially serve primarily as a flexibility preserving diluent during the early stages of the polyimide-forming reaction which takes place within the finish coating. The finish is fully compatible with a polyimide matrix.
170 Intercalation of graphitic carbon fibers US17006 1979-03-02 US4388227A 1983-06-14 Ilmar L. Kalnin
The formation of improved intercalated graphitic carbon fibers of further diminished electrical resistivity (i.e., increased electrical conductivity) is made possible. Not only is the specific electrical resistivity of the resulting fibers reduced (e.g., to extremely low levels no greater than that of copper in preferred embodiments), but the desirable tensile properties of the fibers are maintained at a satisfactory level even after intercalation. A carbonaceous fibrous material containing the usual turbostratic graphitic carbon which is derived from an acrylonitrile homopolymer or a closely related copolymer (as defined) is selected and is structurally modified in a manner which has been found to render it particularly suited for intercalation as evidenced by a further reduction in the electrical resistivity of the resulting intercalated fibrous material while retaining other desirable properties. More specifically, the carbonaceous fibrous material (as defined) prior to intercalation with an electron acceptor intercalating agent is modified via an atypical extremely high temperature treatment so as to yield a modified structure which can be evidenced upon wide angle x-ray diffraction analysis, i.e. resolved graphitic Miller index (100) and (101) reflections and the presence of a (112) reflection are observed, which surprisingly has been found capable of subsequently yielding an improved intercalated product having a substantially reduced electrical resistivity. The intercalated product finds utility as an improved lightweight electrical conductor.
171 Method for the production of carbon/carbon composite material US943854 1978-09-19 US4212906A 1980-07-15 Ronald Fisher; Norman Smith
In the production of all-carbon composite articles by the cracking of a hydrocarbon gas to deposit carbon on a fibrous carbon substrate the substrate is held in the furnace by a ram movable in the furnace to engage the substrate. The gas is introduced inside the annular substrate and evacuated at a position spaced laterally from the substrate so that the gas is forced to disperse through the substrate wall.
172 Solid complex phosphate of aluminum US516778 1974-10-21 US4005172A 1977-01-25 James Derek Birchall; John Edward Cassidy
Complex phosphates of aluminum containing a halogen and chemically-bound molecule of a hydroxy compound, namely, water. A typical example is a complex phosphate having the empirical formulate AlPClH.sub.11 O.sub.9. They are most conveniently prepared by the reaction of an aluminum halide with water and orthophosphoric acid, under relatively cool conditions. The compounds are generally soluble in water and polar organic solvents. They decompose at low temperatures to give aluminum orthophosphate, thereby providing a method for producing aluminum phosphate in many forms, for example, fibers, coatings, binders and fine particles, from a solution in water or organic solvents.
173 Composite materials comprising resin matrix and carbon fibers US51513874 1974-10-16 US3908061A 1975-09-23 BYRNE JOSEPH B; LEDBETTER HARVEY D
This invention is directed to strongly bonded composite materials and a process for preparing the same, such materials comprising (1) a resinous matrix containing (2) carbon fibers having a Young''s modulus parallel to the fiber axis of at least about 12 X 106 pounds per square inch and having a substantially continuous coating of amorphous carbon applied to the surface of such fibers prior to admixture with the resin matrix.
174 Carbon fiber reinforced nickel matrix composite having an intermediate layer of metal carbide US3796587D 1972-07-10 US3796587A 1974-03-12 SARA R
COMPOSITE ARTICLES HAVING A NICKEL BASE METAL MATRIX REINFORCED WITH A PLURALITY OF HIGH STRENGTH, HIGH MODULUS CARBON FIBERS HAVING A THIN, INTERMEDIATE LAYER OF A METAL CARBIDE DISPOSED ON THE FIBER SURFACES. SUCH COMPOSITES ARE CHARACTERIZED BY IMPROVED THERMAL CYCLING CHARACTERISTIC AND ARE PRODUCED BY IMMERSING A PLURALITY OF HIGH STRENGTH, HIGH MODULES CARBON FIBERS IN A MOLTEN METAL BATH CONTAINING AN ALLOY CONSISTING ESSENTIALLY OF AT LEAST ONE METAL CAPABLE OF REACTING WITH CARBON TO FORM A METAL CARBIDE AND AT LEAST ONE ACID-SOLUBLE METAL WHICH DOES NOT REACT WITH CARBON TO FORM A METAL CARBIDE AND WHICH ACTS AS A VEHICLE OR CARRIER FOR THE CARBIDE-FORMING METAL; SOAKING THE FIBERS IN SAID MOLTEN METAL BATH FOR A TIME SUFFICIENT TO EFFECT REACTION BETWEEN THE FIBERS AND THE CARBIDE-FORMING METAL TO PRODUCE A METAL CARBIDE COATING ON THE SURFACE OF THE FIBERS; REMOVING UNREACTED METAL FROM THE METAL CARBIDE COATED FIBERS SO-PRODUCED; AND INCORPORATING THE FIBERS INTO A NICKEL BASE METAL MATRIX.
175 KR102223634B1 - Washing bath for preparing precursor fiber for carbon fiber and preparing method of precursor fiber for carbon fiber using the same KR1020170003794A 2017-01-10 KR102223634B1 2021-03-08 최미영; 방윤혁; 김성룡
본 발명은 수세되는 응고섬유의 진행방향과 동일한 방향으로 나란하게 상호 평행하도록 설치되며, 상기 응고섬유를 토우별로 분리하는 다수의 분할판을 포함하는 탄소섬유용 전구체 섬유 제조용 수세욕 및 이를 이용한 탄소섬유용 전구체 섬유의 제조방법에 관한 것으로, 본 발명에 의하면, 수세욕 내의 유속이 증가하여 수세 효율이 향상됨으로써 물성의 저하 없이 응고섬유의 사폭이 감소되고, 토우 수가 증가되어 생산성을 향상시킬 수 있다. 또한, 응고섬유가 탄소섬유 토우별로 분할되기 때문에 사간 마찰로 인해 나타나는 표면 손상을 감소시킬 수 있어 우수한 물성을 갖는 탄소섬유를 제조할 수 있다.
176 PRODUCTION OF CARBON FIBER HAVING HIGH STRAND TENACITY JP27837199 1999-09-30 JP2000080525A 2000-03-21 YAMAMOTO IWAO; YOSHITANI AKIHIKO; NAKAKOSHI AKIRA
PROBLEM TO BE SOLVED: To obtain carbon fibers exhibiting high strand tenacity. SOLUTION: This method for producing carbon fibers comprises using pitch as a raw material and passing through every processes of at least melt spinning, infusibilizing and carbonizing. In the method the infusibilized fibers are carbonized and then subjected to heat-treatment in an atmosphere containing steam at 1,000-1,800 deg.C.
177 JP41487890 1990-12-26 JP2995867B2 1999-12-27
178 JP13411893 1993-05-13 JP2991891B2 1999-12-20 OOKITA MASA; TANAKA TAKAYUKI; KOBAYASHI MASAYUKI
179 PRODUCTION OF SURFACE-MODIFIED CARBON FIBER JP34930498 1998-11-25 JPH11241268A 1999-09-07 SUGIURA NAOKI; NAKAO FUJIO
PROBLEM TO BE SOLVED: To obtain surface-modified carbon fiber with excellent adhesivity to matrix resins, useful in e.g. composite materials by electrolytic treatment of a specific carbon fiber as anode using a specified electrolyte. SOLUTION: This surface-modified carbon fiber is obtained by electrolytic treatment of carbon fiber <40 t/mm<2> in elastic modulus as anode using an inorganic alkaline electrolyte of >=pH 7 or an electrolyte prepared by adding an aromatic compound (so as to be 0.1-10 wt.% a in concentration) such as a compound of formula I, II or Ill (X is an alkyl, an alkoxy, carboxyl, vinyl or a C=C-bearing functional group; (n) and (m) are each 1-4) having one or more hydroxyl or amino groups to an aqueous solution of ammonium salt of >=pH 7.
180 JP15668793 1993-06-28 JP2812147B2 1998-10-22