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公开(公告)号：US5011639A
公开(公告)日：1991-04-30
申请号：US453038
申请日：1989-12-12
IPC分类号： C04B35/565 , C04B35/626 , H01L21/48
CPC分类号： H01L21/4807 , C04B35/565
摘要： A powdery mixture of a fine silicon carbide powder admixed with boron or a boron compound, e.g. boron carbide, titanium boride and boron oxide, as a sintering aid is compression-molded into a green body which is subjected to a sintering treatment into a sintered body. Different from conventional methods in which the sintering treatment is performed always in an atmosphere of an inert gas, e.g. argon, the sintering treatment in the inventive method is performed in an atmosphere of a rare gas containing 0.005-5% by volume of nitrogen. The sintered body of silicon carbide obtained by this method has an outstandingly high electric volume resistivity of 10.sup.10 to 10.sup.13 ohm.cm and a coefficient of thermal conductivity of 100-220 W/m.K.
摘要翻译： 与硼或硼化合物混合的细碳化硅粉末的粉末混合物，例如 作为烧结助剂的碳化硼，硼化钛和氧化硼被压缩成型坯，其经历烧结处理成烧结体。 不同于常规方法，其中始终在惰性气体气氛中进行烧结处理，例如， 氩气中，本发明方法中的烧结处理在含有0.005-5体积％氮气的稀有气体的气氛中进行。 通过该方法获得的碳化硅烧结体具有极高的体积电阻率为1010至1013欧姆·厘米，导热系数为100-220W / m·K。
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公开(公告)号：US4948763A
公开(公告)日：1990-08-14
申请号：US404584
申请日：1989-09-08
IPC分类号： C04B20/00 , C04B35/571 , C04B35/589 , C08G77/62 , C08L83/16
CPC分类号： C04B20/0056 , C04B35/571 , C04B35/589 , C08G77/62 , C08L83/16
摘要： Hollow ceramic fibers are prepared by melt spinning an organic silazane polymer, infusibilizing the fiber to form an infusible layer on the surface, and pyrolyzing the fiber to obtain a ceramic fiber having an empty interior. The infusibilizing step includes two steps of treating the fiber with a gas containing the vapor of an infusibilizing silicon, boron, phosphorus or metal compound and further treating with a water vapor-containing gas or ammonia-containing gas. The surface infusible fibers are efficiently sintered into hollow ceramic fibers without fusion bond.
摘要翻译： 中空陶瓷纤维通过熔融纺丝有机硅氮烷聚合物制备，使纤维不熔化以在表面上形成不熔层，并热解纤维以获得具有空的内部的陶瓷纤维。 渗透步骤包括两个步骤：用含有不熔硅，硼，磷或金属化合物的蒸汽的气体处理纤维，并进一步用含水气体气体或含氨气体进行处理。 将表面不熔纤维有效地烧结成中空陶瓷纤维而没有熔接。
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3.发明授权
公开(公告)号：US4847345A
公开(公告)日：1989-07-11
申请号：US159315
申请日：1988-02-23
IPC分类号： C01B21/068 , C01B31/36 , C04B35/571 , C04B35/589 , C08G77/48 , C08G77/60 , C08G77/62 , D01F9/10
CPC分类号： C08G77/60 , C04B35/571 , C04B35/589 , C08G77/62
摘要： A process for manufacturing an organic silazane polymer which comprises reacting an organic silicon compound of the following formula (I): ##STR1## in which R represents hydrogen, chlorine, bromine, methyl radical, ethyl radical, phenyl radical or vinyl radical, R.sub.1 represents hydrogen or methyl radical and X represents chlorine or bromine, or a mixture of organic silicon compounds of the formula (I) above and an organic silicon compound of the following formula (II): ##STR2## in which R.sub.2 and R.sub.3 represent hydrogen, chlorine, bromine, methyl radical, ethyl radical, phenyl radical or vinyl radical and X represents chlorine or bromine with a disilazane of the following formula (III): ##STR3## in which R.sub.4, R.sub.5, R.sub.6 represents hydrogen, methyl radical, ethyl radical, phenyl radical or vinyl radical in an anhydrous state at a temperature of from 25.degree. to 350.degree. C. while distilling off by-produced organic ingredients out of the system to obtain an organic silazane polymer. The organic silazane polymer is useful for preceramic materials.
摘要翻译： 一种制备有机硅氮烷聚合物的方法，其包括使下式（I）的有机硅化合物：其中R表示氢，氯，溴，甲基，乙基，苯基或乙烯基 ，R 1表示氢或甲基，X表示氯或溴，或上述式（I）的有机硅化合物与下式（II）的有机硅化合物的混合物：其中R 2 并且R 3代表氢，氯，溴，甲基，乙基，苯基或乙烯基，X代表氯或溴与下列通式（III）的二硅氮烷：其中R4，R5，R6 在25至350℃的温度下，以无水状态代表氢，甲基，乙基，苯基或乙烯基，同时将副产物的有机成分蒸馏出体系，得到有机硅氮烷聚合物。 有机硅氮烷聚合物可用于陶瓷材料。
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4.发明授权Method for the preparation of an organosiloxane oligomer and a novel organosiloxane oligomer thereby 失效由此制备有机硅氧烷低聚物和新型有机硅氧烷低聚物的方法
公开(公告)号：US4727172A
公开(公告)日：1988-02-23
申请号：US905576
申请日：1986-09-09
IPC分类号： C07F7/08
CPC分类号： C07F7/0852 , C07F7/0874
摘要： An efficient method is proposed for the preparation of an organosiloxane oligomer represented by the general formula YSi(R.sup.1).sub.n (--O--SiR.sub.3).sub.3-n, in which each of the groups denoted by R and R.sup.1 is a halogen-substituted or unsubstituted monovalent hydrocarbon group having 1 to 8 carbon atoms, Y is a hydrogen atom or a monovalent group selected from methyl, phenyl, vinyl, chloromethyl and 3-(meth)acryloxypropyl groups and n is zero, 1 or 2, by the reaction of an organosilicon halomagnesium salt of the formula R.sub.3 Si--O--MgX, in which X is a halogen atom, and an organosilane compound of the general formula YSi(R.sup.1).sub.n (Z).sub.3-n, in which Z is a halogen atom or a lower alkoxy group. In particular, tetrasiloxane compounds represented by the general formula Y.sup.1 Si[--O--Si(CH.sub.3).sub.2 (CH.sub.2 CH.sub.2 CF.sub.3)].sub.3, in which Y.sup.1 is a hydrogen atom, chloromethyl group or 3-methacryloxypropyl group, are each a novel compound not known in the prior art.
摘要翻译： 提出了制备由通式YSi（R1）n（-O-SiR 3）3-n表示的有机硅氧烷低聚物的有效方法，其中由R和R 1表示的每个基团是卤素取代或未取代的 具有1至8个碳原子的一价烃基，Y是氢原子或选自甲基，苯基，乙烯基，氯甲基和3-（甲基）丙烯酰氧基丙基的一价基团，并且n为0,1或2，通过 其中X为卤素原子的式R3Si-O-MgX的有机硅卤镁盐和通式YSi（R1）n（Z）3-n的有机硅烷化合物，其中Z为卤素原子或低级 烷氧基。 特别地，由通式Y1Si [-O-Si（CH3）2（CH2CH2CF3）] 3表示的四硅氧烷化合物，其中Y 1为氢原子，氯甲基或3-甲基丙烯酰氧基丙基，均为未知的新化合物 现有技术
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公开(公告)号：US4676966A
公开(公告)日：1987-06-30
申请号：US706238
申请日：1985-02-27
IPC分类号： C01B31/36
CPC分类号： C01B31/36 , C01P2002/72 , C01P2002/82 , C01P2004/62 , C01P2006/60
摘要： The invention provides a novel method for the preparation of a finely divided powder of silicon carbide as a promising material for sintered ceramic products of silicon carbide. The method comprises vapor-phase pyrolysis of a vaporizable organosilicon compound having, in a molecule, at least two, e.g. 2, 3 or 4, silicon atoms and at least one hydrogen atom directly bonded to the silicon atom but having no oxygen or halogen atom directly bonded to the silicon atom at a temperature of 750.degree. C. or higher.
摘要翻译： 本发明提供了一种制备碳化硅细碎粉末作为碳化硅烧结陶瓷产品有希望的材料的新方法。 该方法包括在一分子中具有至少两个例如至少两个的可汽化的有机硅化合物的气相热解。 2,3或4，硅原子和至少一个氢原子直接键合到硅原子上，但是在750℃或更高的温度下没有直接与硅原子键合的氧或卤素原子。
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公开(公告)号：US4649185A
公开(公告)日：1987-03-10
申请号：US798757
申请日：1985-11-15
摘要： The contact lens of the invention is shaped of a poly(trimethylvinylsilane) resin having an average molecular weight of at least 200,000 or a copolymer based thereon. The contact lens has a very high oxygen permeability comparable to conventional transparent silicone rubbers so as to ensure a long time of continued wearing of the lens on the cornea with no adverse physiological influences and the material still has much better mechanical workability for precision shaping into a lens form than the transparent silicone rubbers.
摘要翻译： 本发明的隐形眼镜成型为平均分子量至少为200,000的聚（三甲基乙烯基硅烷）树脂或基于其的共聚物。 隐形眼镜具有与传统的透明硅橡胶相当的非常高的氧透过率，以便确保镜片在角膜上持续磨损的长时间，没有不利的生理影响，并且该材料仍然具有更好的机械加工性，用于精确成形为 透镜形式比透明硅橡胶。
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7.发明授权
公开(公告)号：US4560589A
公开(公告)日：1985-12-24
申请号：US533649
申请日：1983-09-19
CPC分类号： C04B41/009 , C04B41/5059 , C04B41/87 , C23C16/325 , D01F11/126 , Y10S438/931
摘要： The invention provides a method for providing a highly protective coating layer of silicon carbide on to the surface of a substrate. The method comprises pyrolyzing the vapor of an organosilicon compound having at least one hydrogen atom directly bonded to the silicon atom in a molecule but having no halogen or oxygen atom directly bonded to the silicon atom at a temperature of 700.degree. to 1400.degree. C. in contact with the substrate surface to deposit silicon carbide thereon. In particular, the method is useful to form a sheath-and-core structure composed of the core of carbon filament and the coating layer of silicon carbide so that the carbon fibers are imparted with greatly improved resistance against oxidation and chemicals including molten metals when the carbon fibers are used as a reinforcing material of a fiber-reinforced metal composite as well as with improved affinity with molten resins and metals which is also an advantageous property as a reinforcing material for such matrix materials.
摘要翻译： 本发明提供了一种在基材表面上提供碳化硅高保护性涂层的方法。 该方法包括将分子中具有至少一个与硅原子键合的至少一个氢原子的有机硅化合物的蒸气热分解，但在700℃至1400℃的温度下直接与硅原子键合的卤原子或氧原子， 与基底表面接触以在其上沉积碳化硅。 特别地，该方法可用于形成由碳丝芯和碳化硅的涂层组成的皮 - 芯结构，从而使得碳纤维在氧化时具有极大的改善的抗性和包括熔融金属在内的化学物质 碳纤维用作纤维增强金属复合材料的增强材料，并且与熔融树脂和金属具有改进的亲和性，这也是作为这种基体材料的增强材料的有利特性。
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公开(公告)号：US4370385A
公开(公告)日：1983-01-25
申请号：US299249
申请日：1981-09-03
申请人： Akiteru Yoshida , Akiro Yokoo , Shuichi Yokokura , Minoru Takamizawa , Yoshio Inoue , Hiroshi Yoshioka
发明人： Akiteru Yoshida , Akiro Yokoo , Shuichi Yokokura , Minoru Takamizawa , Yoshio Inoue , Hiroshi Yoshioka
IPC分类号： B65D23/08 , C03C17/30 , C08L83/04 , C09D179/08 , B32B17/10
CPC分类号： C03C17/30 , C08L83/04 , C08G77/18 , C08G77/70 , Y10S215/06 , Y10S516/06 , Y10T428/1321 , Y10T428/31612
摘要： A novel scuff-masking composition for glass vessels comprises a specific organopolysiloxane, a curing catalyst therefor, and a surfactant and is highly effective in a method of masking scuffs on glass vessels, which comprises providing the composition on the scuffs and curing the coated composition.
摘要翻译： 一种用于玻璃容器的新型阻燃组合物包括特定的有机聚硅氧烷，其固化催化剂和表面活性剂，并且在掩蔽玻璃容器上的磨损的方法中非常有效，其包括在磨损上提供组合物并固化涂覆的组合物。
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公开(公告)号：US4308212A
公开(公告)日：1981-12-29
申请号：US144927
申请日：1980-04-29
IPC分类号： C08L7/00 , C07F7/18 , C08J7/04 , C08K5/00 , C08K5/54 , C08K5/5419 , C08L1/00 , C08L21/00 , C08L23/00 , C08L27/00 , C08L33/00 , C08L33/02 , C08L51/00 , C08L51/02 , C08L67/00 , C08L77/00 , C08L101/00 , C09D5/00 , C09D7/00 , C09D7/12 , C09D183/04 , C10M111/04 , C10N40/36 , C10N50/02 , C10N50/08 , C09F7/00
CPC分类号： C07F7/1896 , C08K5/5406 , C09D7/1233 , C08K5/5419
摘要： The invention provides a novel class of organosilane compound represented by the general formulaX--CF.sub.2 --CF.sub.2).sub.n CH.sub.2 --CH.sub.2 --Si(OCOR.sup.2).sub.m (R.sup.1).sub.3-m'in which R.sup.1 is a monovalent hydrocarbon group having from 1 to 6 carbon atoms, R.sup.2 is a monovalent hydrocarbon group having from 7 to 21 carbon atoms, X is a hydrogen atom or a fluorine atom, n is a positive integer not exceeding 4 and m is a positive integer not exceeding 3. The fluoroalkyl-containing acyloxy silanes are useful as an additive ingredient in a synthetic resin composition for shaping articles or a coating composition with a synthetic resin as the vehicle when improved lubricity is desired on the surface of the shaped article or on the coated surface.
摘要翻译： 本发明提供一种新型的由通式X-CF2-CF2）nCH2-CH2-Si（OCOR2）m（R1）3-m'表示的有机硅烷化合物，其中R 1是具有1至6个碳原子的一价烃基 原子，R2是具有7-21个碳原子的一价烃基，X是氢原子或氟原子，n是不超过4的正整数，m是不超过3的正整数。含氟烷基的酰氧基硅烷 在成型制品的表面或涂布表面上需要改善的润滑性时，可用作用于成型制品的合成树脂组合物中的添加成分或具有合成树脂作为载体的涂料组合物。
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公开(公告)号：US4303484A
公开(公告)日：1981-12-01
申请号：US68593
申请日：1979-08-22
申请人： Minoru Takamizawa , Fumio Okada , Yasuaki Hara , Aoki, Hisashi
发明人： Minoru Takamizawa , Fumio Okada , Yasuaki Hara , Aoki, Hisashi
CPC分类号： G03F7/0757 , C08F2/46 , C08L83/08 , D21H19/32 , Y10S522/904 , Y10T428/31663 , Y10T428/31667
摘要： A novel photocurable composition suitable for preparing, for example, release papers is proposed which is formulated with photocrosslinkable organopolysiloxanes necessitating no conventional photosensitizers. Thus, the composition comprises(a) an organopolysiloxane having at least two mercaptoalkyl, e.g. mercaptopropyl, groups bonded to the silicon atoms in a molecule,(b) an organopolysiloxane having at least two alkenyl, e.g. vinyl groups directly bonded to the silicon atoms in a molecule, and(c) an organopolysiloxane having at least one benzoin group ##STR1## where Ph is a phenyl group, bonded to the silicon atom in a molecule, which component (c) serves as a photosensitizing ingredient. Alternatively, the inventive composition comprises (a) a mercaptoalkyl-containing organopolysiloxane as above and (b') an organopolysiloxane having, simultaneously, at least two alkenyl groups and at least one benzoin group directly bonded to the silicon atoms in a molecule, which component (b') serves both as the crosslinking agent and as the photosensitizing ingredient simultaneously. Owing to the unquestionable affinity of the photosensitizing ingredient with the other components, the inventive compositions have very high sensitivity in photocuring along with several other advantageous characteristics.
摘要翻译： 提出了适用于制备例如离型纸的新型光固化性组合物，其与光可交联的有机聚硅氧烷配制，不需要常规的光敏剂。 因此，组合物包含（a）具有至少两个巯基烷基的有机聚硅氧烷。 巯基丙基，分子中与硅原子键合的基团，（b）具有至少两个烯基的有机聚硅氧烷，例如 分子中直接与硅原子键合的乙烯基，和（c）具有至少一个苯偶姻基团的成分的有机聚硅氧烷，其中Ph是分子中与硅原子键合的苯基，该组分（c）用作 光敏成分。 或者，本发明的组合物包含（a）如上所述的含巯基烷基的有机聚硅氧烷和（b'）有机聚硅氧烷，其同时具有至少两个烯基和至少一个与分子中的硅原子键合的苯偶姻基团，该组分 （b'）同时用作交联剂和光敏成分。 由于光敏成分与其它组分的无疑的亲和性，本发明的组合物在光固化中具有非常高的灵敏度以及若干其它有利特征。
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