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公开(公告)号：US5248715A
公开(公告)日：1993-09-28
申请号：US921783
申请日：1992-07-30
摘要： Liquid silicone compositions are described that cure to rubber which exhibits a unique combination of properties including low compression set and unprimed adhesion to a variety of substrates. The compositions include silicone polymers curable by hydrosilation reaction and specific combinations of adhesion promoting materials. Compositions containing aluminum chelates and epoxytrialkoxysilanes have been found particularly useful when adhesion to metal substrates is desired. When the compositions are desired to adhere to plastic materials, it is advantageous to include along with the aluminum chelate and epoxytrialkoxysilane, a tetraalkyltitanate, an alkylpolysilicate, and an acrylate or methacrylate compound.
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公开(公告)号：US5225188A
公开(公告)日：1993-07-06
申请号：US813549
申请日：1991-12-26
IPC分类号： A61K8/00 , A61K8/26 , A61K8/27 , A61K8/28 , A61K8/58 , A61K8/89 , A61K8/891 , A61Q15/00 , C08L83/04
CPC分类号： A61K8/585 , A61K8/891 , A61Q15/00 , Y10S424/05
摘要： This invention relates to an underarm formulation containing volatile and/or non-volatile alkylmethylsiloxanes. Incorporation of such agents results in formulations which have beneficial effects such as decreased whitening, less crumbling, better compatibility, controlled vapor pressure and better aesthetics. In addition, use of these materials often results in processing advantages over the prior art.
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3.发明授权Hot-melt silicone pressure sensitive adhesive with siloxylated allyloxypropane diol copolymers as additives 失效具有硅氧烷基化烯丙氧基丙烷二醇共聚物的热熔硅胶压敏粘合剂作为添加剂
公开(公告)号：US5371128A
公开(公告)日：1994-12-06
申请号：US181505
申请日：1994-01-14
IPC分类号： C09J5/06 , A61K9/70 , C09J183/00 , C09J183/04 , C08L83/04
CPC分类号： A61K9/7069 , C09J183/04
摘要： The instant invention pertains to a hot-melt pressure sensitive adhesive composition wherein the composition is comprised of a mixture of (i) a silicone resin and (ii) a silicone fluid, the mixture exhibiting tackiness and adhesiveness, the mixture being blended with (B) from about 1.0 to 20 weight percent, based on the total weight of the mixture of (i) and (ii), of a siloxylated allyloxypropane diol copolymer. The instant invention also encompasses method of using the composition, methods of making hot-melt silicone pressure sensitive adhesive-coated substrates, and devices made using the composition.
摘要翻译： 本发明涉及一种热熔压敏粘合剂组合物，其中组合物由（i）硅树脂和（ii）硅氧烷流体的混合物组成，该混合物显示粘性和粘合性，该混合物与（B ）为约1.0至20重量％，基于（i）和（ii）的混合物的总重量，酯化烯丙氧基丙烷二醇共聚物。 本发明还包括使用该组合物的方法，制备热熔性硅氧烷压敏粘合剂涂覆的基材的方法，以及使用该组合物制备的装置。
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公开(公告)号：US5126470A
公开(公告)日：1992-06-30
申请号：US683212
申请日：1991-04-10
CPC分类号： C08G77/08 , C07F7/0874 , C07F7/0896 , C07F7/21 , C08G77/045
摘要： This invention relates to a non-aqueous method for preparing disiloxanes, copolymeric siloxanes, and cyclic siloxanes containing phenyl, higher alkyl, and certain reactive groups bonded to silicon atoms using selenium dioxide as a catalyst. The siloxanes which are formed using this method can be separated from the reaction mixture and purified.
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公开(公告)号：US5359111A
公开(公告)日：1994-10-25
申请号：US99783
申请日：1993-07-30
CPC分类号： C08G77/38 , C07F7/0801 , C07F7/0829 , C07F7/14 , C07F7/1876
摘要： This invention discloses a method of controlling hydrosilylations in a reaction mixture by controlling the solution concentration of oxygen in the reaction mixture, relative to any platinum present in the reaction mixture. This invention further discloses a method for controlling isomerization in linear or branched alkenyl compounds having at least 4 carbon atoms during a hydrosilylation reaction by introducing a controlled amount of oxygen into the alkenyl compounds during the hydrosilylation. This invention further discloses a method for producing dicycloalkylsubstituted silanes by reacting a halo-or alkoxy-silane with a unsaturated cycloalkenyl compound in the presence of oxygen and a hydrosilylation catalyst.
摘要翻译： 本发明公开了通过控制反应混合物中氧的溶液浓度相对于反应混合物中存在的任何铂来控制反应混合物中的氢化硅烷化反应的方法。 本发明进一步公开了一种通过在氢化硅烷化反应期间将受控量的氧引入烯基化合物中，在氢化硅烷化反应过程中控制具有至少4个碳原子的直链或支链烯基化合物异构化的方法。 本发明进一步公开了一种通过在氧气和氢化硅烷化催化剂存在下使卤代烷氧基硅烷与不饱和环烯基化合物反应制备二环烷基取代硅烷的方法。
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公开(公告)号：US5320828A
公开(公告)日：1994-06-14
申请号：US73399
申请日：1993-06-08
CPC分类号： A61Q15/00 , A61K8/11 , A61K8/26 , A61K8/891 , A61K2800/412 , Y10S424/05
摘要： Encapsulated aluminum salts are produced by combining and heating an aqueous aluminum salt selected from aluminum halohydrate, aluminum nitrohydrate and mixtures thereof; a hydrophobic liquid; and a carboxylate. The mixture is heated until substantially all of the free water has been removed. The encapsulated aluminum salts precipitate out after the removal of the water. The encapsulated aluminum salts are useful in deodorant and antiperspirant compositions.
摘要翻译： 通过组合并加热选自卤代水合铝，硝基铝水合物及其混合物的铝盐水溶液来制备包封的铝盐; 疏水液体 和羧酸盐。 将混合物加热直到基本上已经除去所有的游离水。 去除水后，包封的铝盐沉淀出来。 封装的铝盐可用于除臭和止汗组合物。
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公开(公告)号：US5196559A
公开(公告)日：1993-03-23
申请号：US824664
申请日：1992-01-23
CPC分类号： C07F7/0874 , C07F7/0869 , C07F7/21
摘要： A process for preparing cyclosiloxanes by the redistribution of a cyclosiloxane or mixture of cyclosiloxanes in the presence of a rearrangement catalyst.
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公开(公告)号：US5160732A
公开(公告)日：1992-11-03
申请号：US742677
申请日：1991-08-07
CPC分类号： A61Q15/00 , A61K8/11 , A61K8/26 , A61K8/28 , A61K8/893 , A61K2800/412 , Y10S424/05
摘要： Encapsulated aluminum and aluminum-zirconium salt compositions are produced by combining and heating an aqueous aluminum or aluminum-zirconium salt; a hydrophobic liquid; and a silicone carboxy acid or silicone carboxy acid derivative. The mixture is heated until substantially all of the free water has been removed. The encapsulated aluminum and aluminum-zirconium salt compositions precipitate out after the removal of the water. The encapsulated aluminum and aluminum-zirconium salt compositions are useful in deodorant and antiperspirant compositions.
摘要翻译： 通过组合和加热铝或铝 - 锆盐水溶液制备包封的铝和铝 - 锆盐组合物; 疏水液体 和硅氧烷羧酸或硅氧烷羧酸衍生物。 将混合物加热直到基本上已经除去所有的游离水。 封装的铝和铝 - 锆盐组合物在除去水后沉淀出来。 包封的铝和铝 - 锆盐组合物可用于除臭和止汗组合物。
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公开(公告)号：US5015624A
公开(公告)日：1991-05-14
申请号：US516599
申请日：1990-04-30
CPC分类号： C07F7/0896 , C07F7/126
摘要： The present invention is a process for reducing the number of halogens on organohalosilanes and volatile organohalopolysilanes, while preventing unwanted reactions. The process takes advantage of the high susceptibility of the silicon-halogen bond to chemical reduction by an alkylaluminum hydride. This susceptibility allows the halogen to be quickly removed from the organohalosilane, forming reduced product, before less favorable reactions can occur. The reduced product is immediately removed from the reaction mixture by vacuum distillation, preventing further reactions. The process may be used to remove one or more, or all, of the halogens from organohalosilanes and volatile organohalopolysilanes.
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公开(公告)号：US4973723A
公开(公告)日：1990-11-27
申请号：US531616
申请日：1990-06-01
IPC分类号： C07F7/08
CPC分类号： C07F7/0896
摘要： The present invention is a process for reducing the content of halogen bound to the silicon atom of halosilacycloalkanes. The process employs an alkylaluminum hydride as a reducing agent. Alkylaluminum hydrides have been found to be highly effective in removing the halogen bound to silicon, with lessor affect on the reactive silacycloalkane ring. In another embodiment of the present invention, the halosilacycloalkane is added beneath the surface of an excess of liquid alkylaluminum hydride. The temperature and the pressure of the reaction are maintained such that the resultant silacycloalkane products are immediately vaporized and removed from the reaction vessel. This minimizes further reaction of products and improves the yield of desired product.
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