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1. 发明申请

US20100266827A1 CARBON FIBER AND COMPOSITE MATERIAL USING THE SAME 审中-公开
标题翻译：碳纤维和复合材料使用它
公开(公告)号：US20100266827A1
公开(公告)日：2010-10-21
申请号：US12427406
申请日：2009-04-21
申请人： Taro OYAMA , Rie Kawahito
发明人： Taro OYAMA , Rie Kawahito
IPC分类号： B32B5/16
CPC分类号： D01F9/225 , C08J5/042 , Y10T428/2918
摘要： The present invention relates to a carbon fiber having enhanced surface properties, tensile strength and tensile modulus to be able to obtain a composite material having high composite properties such as excellent impact resistance, preferably a carbon fiber of which tensile modulus is greater than or equal to 340 GPa and tensile strength is greater than or equal to 5970 MPa. The carbon fiber has the properties that the compression strength in the transverse direction of monofilament of the carbon fiber is greater than or equal to 130 kgf/mm2, the surface oxygen concentration (O/C) of the carbon fiber is in the range of 20 to 30%, and the value of the specific surface area of the carbon fiber based on a BET method by krypton absorption is in the range of 0.65 to 2.5 m2/g. The present invention also relates to a composite material including the carbon fiber and a matrix resin wherein the compression strength after impact is preferably greater than or equal to 220 MPa.
摘要翻译：本发明涉及具有增强的表面性能，拉伸强度和拉伸模量的碳纤维，以能够获得具有高复合性能如耐冲击性优异的复合材料，优选拉伸模量大于或等于 340GPa，拉伸强度大于或等于5970MPa。碳纤维具有碳纤维的单丝的横向的抗压强度大于等于130kgf / mm2的特性，碳纤维的表面氧浓度（O / C）为20 至30％，并且通过氪吸收，基于BET法的碳纤维的比表面积的值在0.65-2.5m 2 / g的范围内。本发明还涉及包含碳纤维和基体树脂的复合材料，其中冲击后的抗压强度优选大于或等于220MPa。

2. 发明申请

US20100260658A1 METHOD OF PRODUCING PRE-OXIDATION FIBER AND CARBON FIBER 有权
标题翻译：生产预氧化纤维和碳纤维的方法
公开(公告)号：US20100260658A1
公开(公告)日：2010-10-14
申请号：US12747386
申请日：2008-12-10
申请人： Taro Oyama , Rie Kawahito , Hiroshi Kimura
发明人： Taro Oyama , Rie Kawahito , Hiroshi Kimura
IPC分类号： D01F9/12 , B29C55/00
CPC分类号： D01F9/225
摘要： There is disclosed a method of producing a pre-oxidation fiber in the production of the pre-oxidation fiber by subjecting a polyacrylic precursor fiber to pre-oxidation processing in an oxidizing atmosphere, including shrinking the precursor fiber as a pretreatment of pre-oxidation at a load of 0.58 g/tex or less in the temperature range of 220 to 260° C. under conditions in which the degree of cyclization (I1620/I2240) of the precursor fiber measured by a Fourier transform infrared spectrophotometer (FT-IR) does not exceed 7%, initially-drawing the precursor fiber at a load of 2.7 to 3.5 g/tex in an oxidizing atmosphere at 230 to 260° C. in the ranges of the degree of cyclization of not exceeding 27% and of the density of not exceeding 1.2 g/cm3, and then subjecting the pre-oxidation fiber to pre-oxidation treatment. A carbon fiber of high strength and high elasticity that is appropriate for composite materials that exhibit high composite performance is obtained by continuously subjecting this pre-oxidation fiber to carbonization treatment.
摘要翻译：公开了通过在氧化气氛中对聚丙烯酸前驱体纤维进行预氧化处理来制造预氧化纤维的方法，包括将前体纤维收缩为预氧化的预处理在通过傅立叶变换红外分光光度计（FT-IR）测量的前体纤维的环化度（I1620 / I2240）的条件下，在220〜260℃的温度范围内的负载为0.58g / tex以下不超过7％，首先在230〜260℃的氧化性气氛中，在2.7〜3.5g / tex的负荷下拉伸前体纤维，其环化度不超过27％，密度为不超过1.2g / cm 3，然后对预氧化纤维进行预氧化处理。通过对该预氧化纤维进行碳化处理，可以获得适用于复合性高的复合材料的高强度，高弹性的碳纤维。

3. 发明授权

US08236273B2 Method of producing pre-oxidation fiber and carbon fiber 有权
标题翻译：生产预氧化纤维和碳纤维的方法
公开(公告)号：US08236273B2
公开(公告)日：2012-08-07
申请号：US12747386
申请日：2008-12-10
申请人： Taro Oyama , Rie Kawahito , Hiroshi Kimura
发明人： Taro Oyama , Rie Kawahito , Hiroshi Kimura
IPC分类号： D01F9/12
CPC分类号： D01F9/225
摘要： There is disclosed a method of producing a pre-oxidation fiber in the production of the pre-oxidation fiber by subjecting a polyacrylic precursor fiber to pre-oxidation processing in an oxidizing atmosphere, including shrinking the precursor fiber as a pretreatment of pre-oxidation at a load of 0.58 g/tex or less in the temperature range of 220 to 260° C. under conditions in which the degree of cyclization (I1620/I2240) of the precursor fiber measured by a Fourier transform infrared spectrophotometer (FT-IR) does not exceed 7%, initially-drawing the precursor fiber at a load of 2.7 to 3.5 g/tex in an oxidizing atmosphere at 230 to 260° C. in the ranges of the degree of cyclization of not exceeding 27% and of the density of not exceeding 1.2 g/cm3, and then subjecting the pre-oxidation fiber to pre-oxidation treatment. A carbon fiber of high strength and high elasticity that is appropriate for composite materials that exhibit high composite performance is obtained by continuously subjecting this pre-oxidation fiber to carbonization treatment.
摘要翻译：公开了通过在氧化气氛中对聚丙烯酸前驱体纤维进行预氧化处理来制造预氧化纤维的方法，包括将前体纤维收缩为预氧化的预处理在通过傅立叶变换红外分光光度计（FT-IR）测量的前体纤维的环化度（I1620 / I2240）的条件下，在220〜260℃的温度范围内的负载为0.58g / tex以下不超过7％，首先在230〜260℃的氧化性气氛中，在2.7〜3.5g / tex的负荷下拉伸前体纤维，其环化度不超过27％，密度为不超过1.2g / cm 3，然后对预氧化纤维进行预氧化处理。通过对该预氧化纤维进行碳化处理，可以获得适用于复合性高的复合材料的高强度，高弹性的碳纤维。

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