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公开(公告)号：US5163315A
公开(公告)日：1992-11-17
申请号：US722018
申请日：1991-06-27
申请人： Kazuhiro Asai , Shigeru Morimoto , Hiroshi Omori , Koji Ishihara
发明人： Kazuhiro Asai , Shigeru Morimoto , Hiroshi Omori , Koji Ishihara
IPC分类号： G01M3/22
CPC分类号： G01M3/226
摘要： A leak detecting method for vessels in which a gas of a given pressure is mixed with sulfur hexafluoride of a given partial pressure and the mixture is introduced into a vessel, and a gas in the vicinity of an outer peripheral surface of the vessel is sucked by a gas sucking mechanism.According to one form of the invention, the sucked air is introduced into an absorption cell and a P(16)-line laser light of a carbon dioxide gas laser is introduced into the absorption cell. Then, the presence or absence of absorption of the P(16)-line laser light within the absorption cell is detected in accordance with a change in the transmitted light intensity of the P(16)-line laser light and the presence or absence of a leak in the pressure vessel is discriminated in accordance with a result of the detection. In accordance with another form of the invention the sucked air is introduced into a multiple reflection absorption cell and a P(16)-line laser light of a carbon dioxide gas laser and a reference light slightly different in wavelength from the P(16)-line laser light are introduced into the multiple reflection absorption cell. Then, the presence or absence of absorption of the P(16)-line laser light within the multiple reflection absorption cell is detected in accordance with a change in a light intensity ratio between the reflected lights of the P(16)-line laser light and the reference light, and the presence or absence of a leak in the pressure vessel is discriminated in accordance with a result of the detection.
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公开(公告)号：US5160376A
公开(公告)日：1992-11-03
申请号：US598639
申请日：1990-10-15
CPC分类号： C04B40/0039 , C04B22/0093 , C04B28/02 , C04B2103/14
摘要： The present invention provides a cement setting accelerator comprising 100 parts by weight of a sintered body, 5 to 70 parts by weight of an alkali metal carbonate powder and at most 170 parts by weight of a lime powder and a method of manufacturing the same. The sintered body contains a predetermined ratio of 3CaO.2Na.sub.2 O.5Al.sub.2 O.sub.3, Na.sub.2 SO.sub.4 and Na.sub.2 O.Al.sub.2 O.sub.3. Alternatively, a predetermined ratio of 3CaO.2Na.sub.2 O.5Al.sub.2 O.sub.3, Na.sub.2 SO.sub.4 and 4CaO.3Al.sub.2 O.sub.3.SO.sub.3 are contained in the sintered body. Further, a raw material mixture, which is not sintered and equal in the chemical composition to the sintered body noted above, may be used in place of the sintered body. Setting and hardening of a cement paste is markedly promoted by adding a small amount of the cement setting accelerator of the present invention to the cement paste. Also, the initial setting time of the cement paste can be controlled by controlling the amount of addition of the cement setting accelerator of the present invention.
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公开(公告)号：US4885334A
公开(公告)日：1989-12-05
申请号：US120836
申请日：1987-11-16
申请人： Junji Mayumi , Hiroshi Omori
发明人： Junji Mayumi , Hiroshi Omori
CPC分类号： C08L71/123 , C08L63/00 , C08L67/00 , C08L77/00 , Y10S525/905
摘要： A thermoplastic resin composition is described, comprising (a) a polyphenylene ether resin, (b) a polar thermoplastic resin having a polar functional group, and (c) a modified block copolymer obtained by subjecting a hydrogenated block copolymer comprising an aromatic vinyl compound polymer block (A) and a conjugated diene compound polymer block (B) to graft polymerization in the presence of a monomer having an epoxy group. The resin composition is excellent in impact resistance, solvent resistance, and compatibility among the resinous components thereof.
摘要翻译： 描述了一种热塑性树脂组合物，其包含（a）聚苯醚树脂，（b）具有极性官能团的极性热塑性树脂，和（c）通过将含有芳族乙烯基化合物聚合物的氢化嵌段共聚物 嵌段（A）和共轭二烯化合物聚合物嵌段（B）在具有环氧基的单体存在下接枝聚合。 树脂组合物的树脂成分的耐冲击性，耐溶剂性和相容性优异。
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公开(公告)号：US5332788A
公开(公告)日：1994-07-26
申请号：US864204
申请日：1992-04-03
IPC分类号： C08F255/00 , C08F257/02 , C08F255/02 , C08F4/46 , C08F255/08
CPC分类号： C08F255/00 , C08F257/02
摘要： A copolymer of an .alpha.-olefin with an aromatic diolefin such as divinylbenzene produced by means of Ziegler-Natta polymerization and having a vinylphenyl moiety is subjected to polymerization with an ethylenically unsaturated monomer by means of anion polymerization or free radical polymerization, whereby a graft-modified .alpha.-olefin copolymer is obtained.
摘要翻译： 通过齐格勒 - 纳塔聚合制备并具有乙烯基苯基部分的α-烯烃与芳族二烯烃如二乙烯基苯的共聚物用烯属不饱和单体通过阴离子聚合或自由基聚合进行聚合， 得到改性的α-烯烃共聚物。
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公开(公告)号：US5037890A
公开(公告)日：1991-08-06
申请号：US264433
申请日：1988-10-28
IPC分类号： C08F255/00 , C08F257/02
CPC分类号： C08F255/00 , C08F257/02
摘要： A copolymer of an .alpha.-olefin with an aromatic diolefin such as divinylbenzene produced by means of Ziegler-Natta polymerization and having a vinylphenyl moiety is subjected to polymerization with an ethylenically unsaturated monomer by means of anion polymerization or free radical polymerization, whereby a graft-modified .alpha.-olefin copolymer is obtained.
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公开(公告)号：US4650523A
公开(公告)日：1987-03-17
申请号：US735791
申请日：1985-05-17
申请人： Masatsune Kikuchi , Satoru Matsui , Hiroshi Omori , Masao Shimoda
发明人： Masatsune Kikuchi , Satoru Matsui , Hiroshi Omori , Masao Shimoda
CPC分类号： C04B28/02
摘要： Initial setting, initial adhesion and long-term stability of mortar and concrete can be improved by use of a cement accelerating agent comprising (1) calcined alunite, a carbonate and lime, (2) calcined alunite, a carbonate and an aluminate, or (3) calcined alunite, a carbonate, an aluminate and lime.
摘要翻译： 砂浆和混凝土的初始固化，初始附着力和长期稳定性可以通过使用包含（1）煅烧的铝橄榄石，碳酸盐和石灰，（2）煅烧的铝橄榄石，碳酸盐和铝酸盐或（ 3）煅烧的铝酸钠，碳酸盐，铝酸盐和石灰。
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