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公开(公告)号：US4246178A
公开(公告)日：1981-01-20
申请号：US952457
申请日：1978-10-18
IPC分类号： C07D309/28 , B23K31/02 , C07D309/30 , C07D309/06
CPC分类号： C07D309/30
摘要： A novel class of tetrahydropyran-5-one compounds are provided which are 2-alkoxy- or 2-acyloxy-3,4-dihalogeno-6-alkyl tetrahydropyran-5-ones expressed by the general formula ##STR1## where R.sup.1 is an alkyl group, R.sup.2 is an alkyl or an acyloxy group and X is a halogen atom. The compounds are synthesized by the reaction of a 2-furyl carbinol compound with a halogen in the presence of an alcohol or a carboxylic acid. The compounds are useful as an intermediate for the synthetic preparation of various useful compounds including maltol as a flavor.
摘要翻译： 提供了一类新的四氢吡喃-5-酮化合物，它们是由通式“IMAGE”表示的2-烷氧基 - 或2-酰氧基-3,4-二卤代-6-烷基四氢吡喃-5-酮，其中R 1是烷基 基团，R2是烷基或酰氧基，X是卤素原子。 该化合物通过2-甲酰基甲醇化合物与卤素在醇或羧酸存在下的反应而合成。 该化合物可用作合成制备各种有用化合物的中间体，包括麦芽酚作为风味剂。
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2.发明授权
公开(公告)号：US5210058A
公开(公告)日：1993-05-11
申请号：US726578
申请日：1991-07-08
IPC分类号： C04B35/584 , C04B35/589 , C08G77/48 , C08G77/62
CPC分类号： C08G77/62 , C04B35/589
摘要： An organic silazane polymer is prepared by reacting ammonia gas with a mixture of a trihalosilane and a monohalosilane, for example, methyltrichlorosilane and trimethylchlorosilane in an organic solvent to form a silazane compound, and heating the silazane compound at 200 to 350.degree. C. for polymerization. By melting, shaping, infusibilizing, and firing the silazane polymer, there is obtained a ceramic material.
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公开(公告)号：US4657991A
公开(公告)日：1987-04-14
申请号：US787328
申请日：1985-10-15
IPC分类号： C08L83/00 , C04B35/571 , C08G79/00 , C08L83/02 , C08L83/16 , D01F9/10 , C08F283/00
CPC分类号： C08G79/00 , C04B35/571 , C08L83/16
摘要： The precursor composition of silicon carbide fibers provided by the invention has greatly improved spinnability and can be spun at a very high spinning velocity to give a green filament which has a much larger tensile strength than those of conventional precursor materials and is capable of giving silicon carbide fibers having increased tensile strength by the infusibilization and calcination of the green filament of the composition under tension. The composition comprises from 80 to 99.9 parts by weight of a polycarbosilane polymer and from 20 to 0.01 part by weight of a silmethylene polymer having a degree of polymerization larger than the specified lower limit.
摘要翻译： 由本发明提供的碳化硅纤维的前体组合物大大提高了可纺性，并且可以以非常高的纺丝速度纺丝，得到具有比常规前体材料高的拉伸强度的绿色长丝，并且能够提供碳化硅 纤维通过在张力下的组合物的绿色细丝的不熔化和煅烧而具有增加的拉伸强度。 该组合物包含80-99.9重量份的聚碳硅烷聚合物和20至0.01重量份具有大于规定下限的聚合度的硅亚甲基聚合物。
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公开(公告)号：US5075474A
公开(公告)日：1991-12-24
申请号：US679199
申请日：1991-04-02
CPC分类号： C07F7/21
摘要： According to the method for preparing hexamethyl cyclotrisilazane of the present invention, hexamethyl cyclotrisilazane can be obtained by heating a linear or cyclic silazane compound represented by the following general formula:--(Me.sub.2 SiNH).sub.n --(wherein Me represents a methyl group and n is an integer of not less than 4) in the presence of at least one catalytic compound selected from the group consisting of ammonium salts of arylsulfonic acids and/or aminoarylsulfonic acids and the resulting hexamethyl cyclotrisilazane represented by the formula: --Me.sub.2 SiNH).sub.3 -- can be recovered by distilling off the same outside the reaction system. According to the method of the present invention, highly pure hexamethyl cyclotrisilazane can be industrially prepared in good efficiency and in a high yield. In particular, if octamethyl cyclotetrasilazane which can be industrially prepared from cheap dimethyldichlorosilane is used as a starting material, hexamethyl cyclotrisilazane can also be prepared at a low cost. Thus, the method of the present invention has enough practical value in the organic silicon industries.
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公开(公告)号：US5097055A
公开(公告)日：1992-03-17
申请号：US680696
申请日：1991-04-04
IPC分类号： C07F7/08
CPC分类号： C07F7/0874
摘要： A process of producing a methylphenyltrisiloxane having the following general formula: ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and are each a methyl or phenyl group, the process comprising the step of reacting:(A) methyldiphenylsilanol, with(B) a silazane compound having a diorganosilazane unit having the following formula: ##STR2## wherein R.sup.1 and R.sup.2 are as defined above. According to the process, colorless and odorless methylphenyltrisiloxanes can be obtained easily, safely and economically, without any special deodorizing or decoloring step.
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6.发明申请Heating apparatus, substrate processing apparatus, and method of manufacturing semiconductor devices 有权加热装置，基板处理装置以及半导体装置的制造方法公开(公告)号：US20090016706A1
公开(公告)日：2009-01-15
申请号：US12213823
申请日：2008-06-25
申请人： Akira Hayashida , Masaaki Ueno , Masakazu Shimada , Masashi Sugishita , Toshimitsu Miyata , Kimio Kitamura , Kenji Tanaka , Jyunichi Nishihara
发明人： Akira Hayashida , Masaaki Ueno , Masakazu Shimada , Masashi Sugishita , Toshimitsu Miyata , Kimio Kitamura , Kenji Tanaka , Jyunichi Nishihara
IPC分类号： F26B3/28
CPC分类号： H01L21/67109 , H01L21/67115
摘要： A heating apparatus comprises a wall for surrounding and defining a heating space, a heating element mounted on the inner side of the wall, reflecting members for reflecting the heat emitted from the heating element. Also, a moving unit joined to one end of each of the reflecting members for moving the reflecting members. Moreover, pivotal members joined to the reflecting members beside more their respective other side than one side of the reflecting members for controlling as pivots the movement of the reflecting member driven by the moving unit.
摘要翻译： 加热装置包括用于围绕和限定加热空间的壁，安装在壁的内侧上的加热元件，用于反射从加热元件发出的热的反射构件。 而且，移动单元连接到每个反射构件的一端以移动反射构件。 此外，枢转构件在反射构件的相对另一侧更靠近反射构件的一侧接合，用于控制由移动单元驱动的反射构件的运动。
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公开(公告)号：US5821325A
公开(公告)日：1998-10-13
申请号：US763982
申请日：1996-12-10
CPC分类号： C08G18/025
摘要： A hydroxy- or mercapto-bearing organic compound is caused to react with a polycarbodiimide compound in the presence of an alcoholate of an alkali metal or of an alkaline earth metal. The carbodiimide linkage in the polymer which results from the above-described reaction is crosslinked.
摘要翻译： 使含羟基或巯基的有机化合物在碱金属或碱土金属的醇化物的存在下与聚碳化二亚胺化合物反应。 由上述反应得到的聚合物中的碳二亚胺键被交联。
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公开(公告)号：US5750637A
公开(公告)日：1998-05-12
申请号：US658166
申请日：1996-06-04
CPC分类号： C08G73/00 , C08G18/025
摘要： This invention provides a process for the preparation of a polycarbodiimide solution wherein the polycarbodiimide is synthesized by heating an organic diisocyanate (e.g., 2,4-tolylene diisocyanate or 2,6-tolylene diisocyanate) in the presence of a carbodiimidation catlayst characterized in that a non-chlorinated aromatic hydrocarbon is used as the solvent and the resulting polycarbodiimide has a number average molecular weight from about 3,000 to about 10,000; wherein the synthesis is performed in the temperature range of from about 100.degree. to about 120.degree. C.
摘要翻译： 本发明提供一种制备聚碳二亚胺溶液的方法，其中聚碳二亚胺通过在碳二亚胺二酰亚胺存在下加热有机二异氰酸酯（例如，2,4-甲苯二异氰酸酯或2,6-甲苯二异氰酸酯）来合成，其特征在于， 使用非氯化芳烃作为溶剂，所得聚碳二亚胺的数均分子量为约3,000至约10,000; 其中合成在约100℃至约120℃的温度范围内进行。
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公开(公告)号：US4958040A
公开(公告)日：1990-09-18
申请号：US410202
申请日：1989-09-21
IPC分类号： B01J27/125 , C07B61/00 , C07F7/12
CPC分类号： C07F7/126
摘要： A process for preparing diorganohalogenosilanes wherein diorganodihalogenosilanes are reacted with at least one organosilicon compound having at least one .tbd.Si--H bond in the molecule and selected from polysilanes, polycarbosilanes and polysilphenylenes is described. This reaction proceeds in the presence of a Lewis acid.
摘要翻译： 描述了制备二有机二卤代硅烷与至少一种在分子中具有至少一个3BOND Si-H键的有机硅化合物反应并选自聚硅烷，聚碳硅烷和聚苯乙烯的二有机卤代硅烷的方法。 该反应在路易斯酸存在下进行。
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10.发明授权
公开(公告)号：US4869854A
公开(公告)日：1989-09-26
申请号：US114111
申请日：1987-10-27
IPC分类号： C03B8/02 , C04B35/571 , C04B35/589 , C08G77/62 , C08L83/16
CPC分类号： C08L83/16 , C04B35/571 , C04B35/589 , C08G77/62
摘要： A process for manufacturing an organic silazane polymer which comprises reacting ammonia with a mixture of at least one compound selected from the group consisting of organic silicon compounds of the following formulae (I) and (II) ##STR1## and at least one compound selected from the group consisting of organic silicon compounds of the following formula (III) ##STR2## in which R represents hydrogen, chlorine, bromine, methyl radical, ethyl radical, phenyl radical or vinyl radical, R.sub.1 represents hydrogen or methyl radical, R.sub.2 represents hydrogen, methyl radical, ethyl radical, phenyl radical or vinyl radical and X represents chlorine or bromine; to obtain an ammonolysis product. The ammonolysis product is polymerized in the presence of a basic catalyst capable of deprotonation to obtain an organic silazane polymer. The silazane polymer may be further melted, shaped and infusibilized. The thus infusibilized product is finally sintered to obtain a ceramic material.
摘要翻译： 一种制备有机硅氮烷聚合物的方法，其包括使氨与至少一种选自下式（I）和（II）的有机硅化合物的化合物的混合物反应：（IMA） II）和选自下式（III）的有机硅化合物（III）中的至少一种化合物，其中R表示氢，氯，溴，甲基，乙基，苯基或乙烯基 R1表示氢或甲基，R2表示氢，甲基，乙基，苯基或乙烯基，X表示氯或溴; 以获得氨解产物。 氨解产物在能够去质子化的碱性催化剂存在下聚合，得到有机硅氮烷聚合物。 硅氮烷聚合物可以进一步熔融，成型和不熔化。 将这样的不熔化产物最终烧结得到陶瓷材料。
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