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1. 发明授权

US5114622A Method of cementing radioactive waste and cemented body 失效
标题翻译：放射性废物和固化体的方法
公开(公告)号：US5114622A
公开(公告)日：1992-05-19
申请号：US449917
申请日：1989-12-14
申请人： Kiyomi Funabashi , Osamu Kuriyama , Koichi Chino , Tsutomu Baba , Takashi Nishi , Makoto Kikuchi
发明人： Kiyomi Funabashi , Osamu Kuriyama , Koichi Chino , Tsutomu Baba , Takashi Nishi , Makoto Kikuchi
IPC分类号： G21F9/16 , G21F9/00 , G21F9/30
CPC分类号： G21F9/304
摘要： The present invention relates to a method of cementing a radioactive waste and a cemented body thereof which are less liable to bring about radioactivity leakage for a long period of time and suitable for disposal of cemented bodies of radioactive wastes in the land.The radioactivity leakage from a cemented body of a radioactive waste occurs due to the presence of the voids within the cemented body, and these voids are formed during hardening of the cemented body or by leaching of a soluble component from the cemented body during immersion in water.In the present invention, in order to minimize the amount of radioactivity leakage, the fraction of fine voids (1 .mu.m or less) is limited to 20% by volume or less. In order to attain such a void fraction, operating conditions, such as water to cement ratio, hardening time of a mixture of a solidifying material with a waste, and addition of an organic polymer, are properly determined.Further, in order to prevent formation of a soluble component, i.e., Ca(OH).sub.2, the CaO content of the cement is limited to not less than 0.62.times.C.sub.SiO.sbsb.2 +0.27.times.C.sub.Al.sbsb.2.sub.O.sbsb.3 and not more than 1.87.times.C.sub.SiO.sbsb.2 +2.20.times.C.sub.Al.sbsb.2.sub.O.sbsb.3, wherein C.sub.SiO.sbsb.2 is the silicon content (% by weight) in terms of SiO.sub.2 and C.sub.Al.sbsb.2.sub.O.sbsb.3 is the aluminum content (% by weight) in terms of Al.sub.2 O.sub.3.

2. 发明授权

US5481061A Method for solidifying radioactive waste 失效
标题翻译：固化放射性废物的方法
公开(公告)号：US5481061A
公开(公告)日：1996-01-02
申请号：US141541
申请日：1993-10-27
申请人： Kiyomi Funabashi , Koichi Chino , Osamu Kuriyama , Tsutomu Baba , Shunsuke Uchida , Makoto Kikuchi
发明人： Kiyomi Funabashi , Koichi Chino , Osamu Kuriyama , Tsutomu Baba , Shunsuke Uchida , Makoto Kikuchi
IPC分类号： C04B28/02 , G21F9/16 , G21F9/30 , G21F9/00
CPC分类号： C04B28/02 , G21F9/16 , G21F9/165 , G21F9/304
摘要： The present invention relates to a method of solidifying radioactive waste with cement, comprising forming a mixture comprising water, a hydrophilic material and cement substantially non-shrinkable or expansible with respect to volume change upon hardening, mixing said mixture with the radioactive waste, followed by hardening to form a solid body.The present invention enables the formation of a compact solid body having voids, such as capillary voids, of reduced volume, which makes it possible to reduce the leaching rate of hazardous materials. Further, since no shrinkage accompanies hardening, no tensile stress occurs in the cement surrounding minute waste particles within the hardened material, thereby enabling a decrease in the strength of the solid body to be minimized. This in turn enables an increase in the amount of packing of waste. Prior addition of a hydrophilic material enables the cement fluidity before hardening to be maintained even after complete absorption of water by a water absorptive waste. This is extremely advantageous in carrying out hardening.
摘要翻译：本发明涉及一种用水泥固化放射性废物的方法，包括形成水，亲水材料和水泥在混合物硬化后基本上不可收缩或可膨胀的混合物，将所述混合物与放射性废物混合，然后硬化形成固体。本发明能够形成具有减小体积的诸如毛细管空隙的空隙的紧凑的固体，这使得可以降低有害材料的浸出率。此外，由于没有收缩伴随硬化，所以在硬化材料内的微小废弃颗粒周围的水泥中不产生拉伸应力，从而能够使固体的强度降低到最小。这又可以增加废物的包装量。亲水性材料的先前添加使得即使在通过吸水性废物完全吸收水之后，硬化前的水泥流动性仍能保持。这在进行硬化方面是非常有利的。

3. 发明授权

US5045241A Method for solidifying radioactive wastes 失效
标题翻译：固化放射性废物的方法
公开(公告)号：US5045241A
公开(公告)日：1991-09-03
申请号：US330083
申请日：1989-03-09
申请人： Osamu Kuriyama , Kiyomi Funabashi , Tsutomu Baba , Masami Matsuda , Koichi Chino , Makoto Kikushi
发明人： Osamu Kuriyama , Kiyomi Funabashi , Tsutomu Baba , Masami Matsuda , Koichi Chino , Makoto Kikushi
IPC分类号： G21F9/36 , G21F9/00 , G21F9/30 , G21F9/34
CPC分类号： G21F9/302 , G21F9/008 , G21F9/34
摘要： A method of solidifying radioactive wastes comprising the steps of substituting the atmosphere inside a container packed with radioactive waste with a condensable vapor, pouring a matrix material into said container and thereafter condensing said vapor. The condensable vapor can be steam and the matrix material can be alkaline organic material.
摘要翻译： PCT No.PCT / JP88 / 00596 Sec。 371日期：1989年3月9日 102（e）1989年3月9日PCT PCT 1987年7月10日PCT公布。公开号WO89 / 00753 日本1989年1月26日。一种固化放射性废物的方法，其特征在于，包括以可冷凝蒸气置换放射性废物的容器内的气氛，将基质材料倒入所述容器中，然后冷凝所述蒸气的步骤。可冷凝蒸汽可以是蒸汽，基质材料可以是碱性有机材料。

4. 发明授权

US4395512A Polyphenylenesulfide resin composition 失效
标题翻译：聚苯硫醚树脂组合物
公开(公告)号：US4395512A
公开(公告)日：1983-07-26
申请号：US381563
申请日：1982-05-24
申请人： Yoshihiro Kubota , Osamu Kuriyama
发明人： Yoshihiro Kubota , Osamu Kuriyama
IPC分类号： C08L27/14 , C08L1/00 , C08L27/00 , C08L27/12 , C08L27/16 , C08L81/00 , C08L81/02 , H05K1/03 , C08K3/10
CPC分类号： C08L81/02 , C08L27/12 , H05K1/0333 , H05K1/0373
摘要： The invention provides a novel resin composition based on a polyphenylenesulfide resin which can be molded into shaped articles imparted with remarkably improved impact strength, cracking resistance and heat shock resistance. The inventive resin composition comprises 100 parts by weight of a polyphenylenesulfide resin, from 10 to 300 parts by weight of an inorganic filler and from 1 to 100 parts by weight of a fluorine-containing rubber such as a copolymer of vinylidene fluoride and hexafluoropropylene having specified Mooney viscosity.
摘要翻译：本发明提供了一种基于聚苯硫醚树脂的新型树脂组合物，其可以模塑成具有显着提高的冲击强度，抗裂性和耐热冲击性的成型制品。本发明的树脂组合物包含100重量份的聚苯硫醚树脂，10-300重量份的无机填料和1至100重量份的含氟橡胶，例如具有规定的偏二氟乙烯和六氟丙烯的共聚物门尼粘度。

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