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公开(公告)号：US5789516A
公开(公告)日：1998-08-04
申请号：US826716
申请日：1997-04-07
IPC分类号： C08L83/10 , C08F4/40 , C08F4/44 , C08F293/00 , C08G77/442 , C08G77/06
CPC分类号： C08G77/442 , C08F4/40
摘要： A method of manufacturing block copolymers containing a polyorganosiloxane segment, by dual polymerization involving (i) polycondensation of a silicone block followed by (ii) the free radical polymerization of a monomer that can be polymerized by free radical polymerization, such as a vinyl containing organic monomer. Initiation of free radical polymerization in step (ii) is carried out with a carbonyl functional group attached to the silicone polymer block. The carbonyl functional silicone polymer, preferably an aldehyde functional silicone polymer, is included as one component of a copper-based Redox initiating system. The method ensures no free homopolymerization, complete reactivity, and various polymer architectures are possible, including for example, polymeric structures such as AB, ABA, (AB).sub.n, brush, and radiant types. The method is fast, effective, convenient, and easier to control than typical ionic polymerization techniques. The silicone-organic block copolymers obtained by the process have utility as polymeric surfactants or as solubility modifiers.
摘要翻译： 通过双重聚合制造含有聚有机硅氧烷链段的嵌段共聚物的方法，包括（i）硅氧烷嵌段的缩聚，随后（ii）可通过自由基聚合反应的单体的自由基聚合，例如含乙烯基的有机物 单体。 在步骤（ii）中开始自由基聚合是用与硅氧烷聚合物嵌段连接的羰基官能团进行的。 羰基官能硅氧烷聚合物，优选醛官能的硅氧烷聚合物，作为铜基氧化还原引发体系的一个组分被包括在内。 该方法确保没有游离的均聚，完全的反应性，并且各种聚合物结构是可能的，包括例如聚合物结构如AB，ABA，（AB）n，刷和辐射型。 该方法比典型的离子聚合技术快速，有效，方便，易于控制。 通过该方法获得的硅氧烷 - 有机嵌段共聚物可用作聚合物表面活性剂或溶解度调节剂。
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公开(公告)号：US5708115A
公开(公告)日：1998-01-13
申请号：US798990
申请日：1997-02-11
CPC分类号： C08G77/38 , C07F7/12 , C07F7/1836 , C08F4/42
摘要： A method in which radical polymerization of a vinyl monomer is initiated by an ozonide group attached to a silane or a siloxane polymer. The method is particularly useful for preparing organic polymers having a silicone chain end, or for preparing wide ranges of silicone/organic polymers and copolymers with varied architecture, i.e., ABA block copolymers, comb polymers, star polymers, and hyper-branched polymers. In one embodiment, the method is carried out by simply heating a vinyl monomer in the presence of a silane containing ozonide functionality. The ozonide silane is obtained by exposing silanes or siloxanes having an alkyl group containing a double bond to ozone. Surprisingly, an ozonide attached to an organosilicon compound was found to be stable, and capable of initiating vinyl polymerization upon heating to moderate temperatures, i.e., about 70.degree. C.
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公开(公告)号：US4851168A
公开(公告)日：1989-07-25
申请号：US290782
申请日：1988-12-28
CPC分类号： C08J3/097 , D01F6/14 , C08J2329/04
摘要： Solutions of polyvinyl alcohol in non-aqueous mixtures of dimethyl sulfoxide and up to about 30 weight percent, based on said mixture, of an alcohol containing from 1 to about 4 carbon atoms can be converted to hydrogels, fibers and other useful products.
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公开(公告)号：US4824890A
公开(公告)日：1989-04-25
申请号：US151666
申请日：1988-02-02
申请人： Shedric O. Glover , Daniel Graiver
发明人： Shedric O. Glover , Daniel Graiver
CPC分类号： C08J3/215 , C08K13/02 , C08J2383/04
摘要： A curable, reinforced polydiorganosiloxane microemulsion is prepared by adding from 5 to 30 parts by weight of colloidal silica per 100 parts by weight of polydiorganosiloxane in the microemulsion and from 1 to 5 parts by weight of dialkyltindicarboxylate catalyst per 100 parts by weight of the microemulsion to polydiorganosiloxane microemulsion. The curable, reinforced polydiorganosiloxane emulsion can be cast into coherent, elastomeric films of less than 0.4 micrometer thickness.
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公开(公告)号：US4710405A
公开(公告)日：1987-12-01
申请号：US899847
申请日：1986-08-25
IPC分类号： C08L83/04 , C08L83/08 , C09D183/04 , C09J183/00 , C09J183/08 , B05D5/10
摘要： A method of improving the adhesion of silicone elastomers, obtained from aqueous emulsions, comprises mixing the emulsion with an amine functional co-oligomer. A preferred co-oligomer is of the formula ##STR1## where R is a monovalent alkyl radical of from 1 to 6 carbon atoms, x is from 1 to 250, and y is from 2 to 50.
摘要翻译： 从水乳液获得的改善硅氧烷弹性体粘合性的方法包括将乳液与胺官能共聚物混合。 优选的共低聚物具有式“IMAGE”，其中R为1至6个碳原子的一价烷基，x为1至250，y为2至50。
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公开(公告)号：US07367995B2
公开(公告)日：2008-05-06
申请号：US11363193
申请日：2006-02-27
IPC分类号： C10L1/12
摘要： Fuel oxygenates comprised of fatty acid or fatty acid ester derivatives which have been reacted with ozone; a base; and a lower alkanol (1 to 8 carbon atoms) are described. The oxygenates comprise ester groups at a point of cleavage by the ozone which provide oxygen in the oxygenate.
摘要翻译： 由与臭氧反应的脂肪酸或脂肪酸酯衍生物组成的燃料含氧化合物; 一个基地 和低级链烷醇（1〜8个碳原子）。 含氧化合物在通过在氧合物中提供氧的臭氧裂解的点处包含酯基。
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公开(公告)号：US6046293A
公开(公告)日：2000-04-04
申请号：US203318
申请日：1998-12-01
摘要： A process for manufacturing high molecular weight, alternating polysiloxane copolymers, by solid-liquid phase, nonaqueous, interfacial polymerization. The copolymers consist of alternating siloxane repeating units of the (AB).sub.m type, such as diphenylsiloxane units and dimethylsiloxane units, alternately polymerized together to form the copolymer. The solid-liquid phase interfacial polymerization process is fast, proceeds smoothly at room temperature, and is not reversible, i.e., no cyclic siloxane species are generated. The resulting polysiloxanes can be formed into thermoplastic elastomers which are suitable for use as sealants, fillers, and films.
摘要翻译： 一种通过固液相制备高分子量交替聚硅氧烷共聚物的方法，非水性，界面聚合。 共聚物由（AB）m型交替的硅氧烷重复单元组成，例如二苯基硅氧烷单元和二甲基硅氧烷单元，交替聚合在一起形成共聚物。 固相界面聚合方法快速，在室温下平稳进行，不可逆，即不产生环状硅氧烷物质。 所得的聚硅氧烷可以形成适合用作密封剂，填料和膜的热塑性弹性体。
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公开(公告)号：US06001945A
公开(公告)日：1999-12-14
申请号：US115896
申请日：1998-07-15
CPC分类号： C08G83/005 , C08G77/60 , C08G77/62
摘要： An exchange reaction of hydroxyl and alkoxysilane is used as a polymerization avenue yielding hyperbranched polymers. A monomer containing hydroxy alcohol functionality and alkoxy functionality attached to a silicon atom in the monomer is employed, and a simple exchange reaction with driving off of alcohol by-product leads to the desired hyperbranched polymerization and materials.
摘要翻译： 使用羟基和烷氧基硅烷的交换反应作为产生超支化聚合物的聚合途径。 使用含有单体中含有羟基醇官能团和烷氧基官能团的单体，并且与副产物相反的简单交换反应导致所需的超支化聚合和材料。
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公开(公告)号：US5891548A
公开(公告)日：1999-04-06
申请号：US725044
申请日：1996-10-03
申请人： Daniel Graiver , Udo C. Pernisz
发明人： Daniel Graiver , Udo C. Pernisz
IPC分类号： B32B5/16 , B32B5/18 , C08K9/06 , C08K9/08 , C08L83/07 , C09C1/30 , C09D183/07 , C09K11/00 , C09K11/08 , C09K11/59 , B32B5/00 , C08L83/00
CPC分类号： B82Y30/00 , C08K9/06 , C08K9/08 , C09C1/3081 , C01P2002/82 , C01P2002/84 , C01P2004/03 , C01P2004/04 , C01P2004/30 , C01P2004/50 , C01P2004/64 , C01P2006/12 , Y10T428/24 , Y10T428/2998
摘要： A curable silicone is used to encapsulate porous, photoluminescing silica nanoparticles having three-dimensional, web-like structures. The encapsulation protects the silica nanoparticles, preserves their photoluminescent effect, and can be used as a coating. The composition is used to prepare articles of manufacture by casting it on a substrate such as glass or a silicon wafer and curing it. Special effects can be obtained by using a mask on the substrate prior to deposit of nanoparticles and curing the silicone matrix.
摘要翻译： 使用可固化的硅氧烷封装具有三维网状结构的多孔，光致发光的二氧化硅纳米颗粒。 封装保护二氧化硅纳米颗粒，保持其光致发光效果，并可用作涂层。 该组合物用于通过将其浇铸在诸如玻璃或硅晶片的基材上并固化来制备制品。 在沉积纳米颗粒并固化硅树脂基质之前，在基材上使用掩模可以获得特殊的效果。
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公开(公告)号：US5695617A
公开(公告)日：1997-12-09
申请号：US561771
申请日：1995-11-22
CPC分类号： H01L33/346
摘要： A web-like nanoparticle silicon is produced by laser vaporization of silicon metal in an oxygen-free atmosphere in a diffusion cloud chamber where it aggregates into novel web-like microstructures. The aggregates are porous, and bright yellow to orange photoluminescence from the web-like nanoparticle silicon is observed upon irradiation with ultraviolet light.
摘要翻译： 通过在扩散云室中的无氧气氛中通过硅金属的激光蒸发来生产网状纳米颗粒硅，其中它聚集成新的网状微结构。 聚集体是多孔的，并且在用紫外线照射时观察到来自网状纳米颗粒硅的明亮的黄色至橙色的光致发光。
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