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1. 发明授权

US4988492A Method for infusibilizing pitch fibers 失效
标题翻译：沥青纤维不熔化的方法
公开(公告)号：US4988492A
公开(公告)日：1991-01-29
申请号：US497774
申请日：1990-03-21
申请人： Yojiro Hara , Shinzo Ishikawa , Hiroaki Shono , Taiji Matsumoto
发明人： Yojiro Hara , Shinzo Ishikawa , Hiroaki Shono , Taiji Matsumoto
IPC分类号： C10C3/14 , D01F9/14 , D01F9/15 , D01F9/32
CPC分类号： C10C3/14 , D01F9/15 , D01F9/322
摘要： This invention provides a method for infusibilization of pitch fibers for production of carbon fibers which comprises putting pitch fibers prepared by melt spinning from a spinning pitch in containers, introducing in succession the containers containing the pitch fibers into an infusibilizing furnace divided into a plurality of sections and passing the containers therethrough from inlet to outlet wherein the containers containing the pitch fibers are intermittently moved through the infusiblizing furnace to retain each of the containers in respective sections for a given period of time, during which temperature of respective sections is independently raised from minimum controlled temperature to maximum controlled temperature and thereafter is lowered to the minimum controlled temperature and then the container is moved.
摘要翻译：本发明提供了用于生产碳纤维的沥青纤维不熔化的方法，其包括将通过熔融纺丝制备的沥青纤维从纺丝沥青混合在容器中，将含有沥青纤维的容器连续引入分为多个部分的熔化炉并且使容器从入口到出口通过，其中容纳沥青纤维的容器被间歇地移动通过熔化炉，以将每个容器保持在相应的部分中一段给定的时间段，在此期间各部分的温度独立地从最小控制温度到最大控制温度，然后降低到最低控制温度，然后移动容器。

2. 发明授权

US5108458A Sizing agent for carbon fiber 失效
标题翻译：碳纤维纤维增强剂
公开(公告)号：US5108458A
公开(公告)日：1992-04-28
申请号：US262791
申请日：1988-10-26
申请人： Motoi Marumoto , Yojiro Hara , Tadanori Kitamura
发明人： Motoi Marumoto , Yojiro Hara , Tadanori Kitamura
IPC分类号： D06M13/02 , D01F11/14 , D06M13/322 , D06M13/395 , D06M101/00 , D06M101/40
CPC分类号： D01F11/14
摘要： This invention provides a sizing agent for carbon fiber which contains an isocyanate regenerating compound which is an isocyanate compound, the --NCO group of which is stabilized with a blocking agent. Further provided are carbon fiber improved in adhesion to resins and carbon fiber reinforced composite materials improved in various properties such as tensile strength, flexural strength and Izod impact strength.

3. 发明授权

US4781908A Process for the infusibilizing treatment of pitch fiber 失效
标题翻译：沥青纤维灌注处理工艺
公开(公告)号：US4781908A
公开(公告)日：1988-11-01
申请号：US923866
申请日：1986-10-28
申请人： Yojiro Hara , Atsuki Kodama
发明人： Yojiro Hara , Atsuki Kodama
IPC分类号： D01F11/10 , D01F9/14 , D01F9/145 , D01F11/00 , D01F9/12
CPC分类号： D01F9/145
摘要： 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.
摘要翻译：本发明涉及沥青纤维的生产方法，该方法包括在沥青类碳纤维的生产中，将固体润滑剂的粉末附着在沥青纤维上，然后对沥青纤维进行渗透处理。根据本发明，可以排除以前的方法中使用的氧化剂的使用，可以以高安全性进行操作，并且可以缩短不熔化所需的时间。此外，根据本发明获得的不熔化纤维可以直接引入碳化过程中，没有任何特别的洗涤处理等。

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