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1. 发明授权

US5401821A Process for the preparation of an organopolysiloxane resin 失效
标题翻译：制备有机聚硅氧烷树脂的方法
公开(公告)号：US5401821A
公开(公告)日：1995-03-28
申请号：US165788
申请日：1993-12-13
申请人： Michael Geck , Christian Herzig , Bernward Deubzer , Helmut Oswaldbauer
发明人： Michael Geck , Christian Herzig , Bernward Deubzer , Helmut Oswaldbauer
IPC分类号： B01D19/04 , C08G77/06 , C08G77/32 , C08G77/36 , C09D7/12 , D21H19/32 , G03G9/087 , C08G77/08
CPC分类号： B01D19/0409 , C08G77/06 , C09D7/125 , D21H19/32 , G03G9/08773
摘要： Process for the preparation of an organopolysiloxane resin, which comprisesin a first stage reacting at least one silane of the formulaR.sub.a Si(OR.sup.1).sub.4-a (I)in which a has a value of 0, 1, 2 or 3, R and R.sup.1 are monovalent organic radicals which may be the same or different and/or a partial hydrolyzate thereof, with the proviso that at least one silane of formula (I), where a is 0 or 1 and/or a partial hydrolyzate thereof is employed, and optionally an organo(poly)siloxane with water in the presence of a poly-protic acid and optionally other substances, subsequently partly neutralizing the acid by addition of a base and then distilling off at least some of the compound R.sup.1 OH formed,in a second stage reacting the homogeneous reaction mass resulting from the first stage in the presence of a base and a water-insoluble organic solvent and distilling off the water and the compound R.sup.1 OH,in a third stage, bringing the homogeneous reaction mass resulting from the second stage to a pH of between 6 and 8 by buffering with a poly-protic acid and/or salts thereof, distilling off the water and any compound R.sup.1 OH still present and filtering off the salt which has precipitated, andoptionally, in a fourth stage separating the homogeneous reaction mass resulting from the third stage from the water-insoluble organic solvent.
摘要翻译：一种制备有机聚硅氧烷树脂的方法，该方法包括在第一阶段使至少一种式RaSi（OR1）4-a（I）的硅烷反应其中a值为0,1,2或3，R和 R 1是可以相同或不同的一价有机基团和/或其部分水解产物，条件是使用至少一种式（I）的硅烷，其中a为0或1，和/或其部分水解产物，和任选的有机（聚）硅氧烷与水在多质子酸和任选的其它物质的存在下，随后通过加入碱部分中和酸，然后在第二次蒸馏出至少一些所形成的化合物R 1 OH 在碱的存在和水不溶性有机溶剂的存在下使由第一阶段产生的均相反应物质反应，并在第三阶段中蒸馏除去水和化合物R1OH，使由第二阶段产生的均匀反应物质 pH在6 a之间通过用聚 - 质子酸和/或其盐缓冲，蒸出水和仍存在的任何化合物R1OH，并过滤沉淀的盐，并且任选地在第四阶段中分离由第三阶段来自水不溶性有机溶剂。

2. 发明授权

US4096160A Continuous devolatilization of silanol-terminated silicone polymer 失效
标题翻译：硅烷醇封端的硅氧烷聚合物的连续脱挥发分
公开(公告)号：US4096160A
公开(公告)日：1978-06-20
申请号：US678738
申请日：1976-04-21
申请人： Bruce Allan Ashby
发明人： Bruce Allan Ashby
IPC分类号： C08G77/00 , C08G77/16 , C08G77/22 , C08G77/32 , C08G77/36 , C07F7/20
CPC分类号： C08G77/16 , C08G77/36
摘要： An improved process is provided for preparing a linear diorganopolysiloxane fluid having terminal hydroxy groups, which is substantially free of cyclic polysiloxanes. In the process, a linear diorganopolysiloxane fluid containing lower boiling cyclic polysiloxanes is continuously fed with steam into an evacuated, tortuous, confined passageway to form a turbulent mixture of the silicone fluid and steam in the passageway, the mixture is passed through the passageway at elevated temperatures and moderate vacuum to form a vaporized mixture comprising steam and cyclic polysiloxanes which have been freed from the linear diorganopolysiloxane fluid, the vaporized mixture of steam and cyclics and the linear diorganopolysiloxane substantially free of cyclics are removed from the passageway, and the vaporized mixture of steam and cyclics is separated from the cyclic-free diorganopolysiloxane fluid.
摘要翻译：提供了一种改进的方法，用于制备基本上不含环状聚硅氧烷的具有末端羟基的直链二有机聚硅氧烷流体。在该方法中，含有低沸点环状聚硅氧烷的线性二有机聚硅氧烷流体连续地被供给蒸汽进入抽真空的曲折的限制通道，以在通道中形成有机硅流体和蒸汽的湍流混合物，混合物在高架温度和中等真空度以形成蒸发的混合物，其中蒸发和环状聚硅氧烷已经脱离线性二有机聚硅氧烷流体，蒸发的蒸汽和循环的混合物和基本上不含循环的线性二有机聚硅氧烷从通道中除去，汽化的混合物蒸汽和环状物与无环状二有机硅氧烷流体分离。

3. 发明授权

US10179735B2 Method for purifying contaminated gaseous hydrogen chloride 有权
公开(公告)号：US10179735B2
公开(公告)日：2019-01-15
申请号：US15527141
申请日：2016-01-26
申请人： Wacker Chemie AG
发明人： Konrad Mautner
IPC分类号： C01B7/07 , C08G77/32 , C08G77/06 , C08G77/34 , C08G77/36 , C07C17/16
摘要： Impure gaseous hydrogen chloride from organochlorosilane hydrolysis is freed of impurities by first scrubbing with an organochlorosilane, which may be the same or different from the organochlorosilane(s) hydrolyzed, and then further scrubbing with chloromethane. The purified gaseous hydrogen chloride is preferably used in chlorosilane synthesis.

4. 发明授权

US09951185B2 Aminosiloxanes of high purity 有权
公开(公告)号：US09951185B2
公开(公告)日：2018-04-24
申请号：US14978804
申请日：2015-12-22
申请人： Momentive Performance Materials GmbH
发明人： John M. Huggins , Hurbertus Eversheim , Gunnar Hoffmüller
IPC分类号： C08G77/26 , C08G77/06 , C08G77/10 , C08G77/455 , C08G77/34 , C08G77/36 , C08G77/38 , C08G77/458 , C08L83/10
CPC分类号： C08G77/26 , C08G77/06 , C08G77/10 , C08G77/34 , C08G77/36 , C08G77/38 , C08G77/455 , C08G77/458 , C08L83/10
摘要： Disclosed herein is a composition comprising amino-functional polysiloxanes of high purity and their preparation. Also disclosed herein is an aminoalkyl-functional polysiloxane, a process for purifying this aminoalkyl-functional polysiloxane, a process for preparing the composition, a use of the composition, a polyorganosiloxane-polyorgano block copolymer, a process for the preparation of a polyorganosiloxane-polyorgano block copolymer and a shaped, formed and/or extruded shaped article.

5. 发明授权

US5189193A Process for preparation of cyclic organohydrosiloxanes 失效
标题翻译：环状有机氢硅氧烷的制备方法
公开(公告)号：US5189193A
公开(公告)日：1993-02-23
申请号：US937089
申请日：1992-08-31
申请人： Steven K. Freeburne , David E. Puckett
发明人： Steven K. Freeburne , David E. Puckett
IPC分类号： C07F7/21 , C08G77/36
CPC分类号： C08G77/36 , C07F7/21
摘要： The present invention is a process for preparation of cyclic organohydrosiloxanes. The process comprises contacting an organohydrodihalosilane with a substantially stoichiometric quantity of water to form a mixture containing cyclic and short-chain linear organohydrosiloxanes. This mixture is distilled to separate the cyclic and short-chain linear organohydrosiloxanes from other components of the mixture. The separated cyclic and short-chain linear organohydrosiloxanes are then contacted with an additional quantity of water to effect hydrolysis and condensation of the short-chain linear organohydrosiloxanes to higher molecular weight linear organohydrosiloxanes which are easily separated from the cyclic organohydrosiloxanes by a second distillation step.

6. 发明申请

US20220056217A1 PROCESS FOR PREPARING SPHERICAL SILICONE RESIN PARTICLES 有权
公开(公告)号：US20220056217A1
公开(公告)日：2022-02-24
申请号：US17299332
申请日：2018-12-10
申请人： Wacker Chemie AG
发明人： Sebastian Knör , Sebastian Kröner
IPC分类号： C08G77/18 , C08G77/06 , C08G77/36
摘要： A process for preparing spherical silicone resin particles in which alkoxysilanes are reacted with water to form a hydrolysate is provided. The resulting silicone resin particles are isolated from a mixture. The silicone resin particles are dried and the particles are deagglomerated by ultrasonic sieving.

7. 发明授权

US5416190A Method for the molecular weight fractionation of polyhydrogen silsesquioxane 失效
$Method for the molecular weight fractionation of polyhydrogen silsesquioxane$
标题翻译：聚氢倍半硅氧烷的分子量分馏方法
公开(公告)号：US5416190A
公开(公告)日：1995-05-16
申请号：US145923
申请日：1993-10-29
申请人： Katsutoshi Mine , Takashi Nakamura , Motoshi Sasaki
发明人： Katsutoshi Mine , Takashi Nakamura , Motoshi Sasaki
IPC分类号： C08G77/32 , C08G77/12 , C08G77/36 , C08F6/12
CPC分类号： C08G77/12 , C08G77/36
摘要： Disclosed is a highly reproducible method for the molecular weight fractionation of polyhydrogen silsesquioxane that gives a very storage-stable polyhydrogen silsesquioxane having a freely selectable molecular weight. The method involves dissolving polyhydrogen silsesquioxane in active-hydrogen-free nonpolar solvent; adding an active-hydrogen-free polar solvent to the resulting solution in order to precipitate polyhydrogen silsesquioxane; and collecting the desired molecular weight fraction of polyhydrogen silsesquioxane.
摘要翻译：公开了一种高度可重复的聚氢倍半硅氧烷分子量分级方法，其提供了具有可自由选择的分子量的非常储存稳定的聚氢倍半硅氧烷。该方法包括将聚氢倍半硅氧烷溶解在无活性氢的非极性溶剂中; 向所得溶液中加入无活性氢的极性溶剂，以沉淀聚氢倍半硅氧烷; 并收集所需的聚氢倍半硅氧烷的分子量分数。

8. 发明授权

US4902813A Process for preparing diorganopolysiloxanes having terminal Si-bonded hydroxyl groups 失效
标题翻译：制备具有末端Si键合的羟基的二有机聚硅氧烷的方法
公开(公告)号：US4902813A
公开(公告)日：1990-02-20
申请号：US280852
申请日：1988-12-07
申请人： Karl-Heinrich Wegehaupt , Karl Braunsperger , Gunter von Au , Fridolin Stary
发明人： Karl-Heinrich Wegehaupt , Karl Braunsperger , Gunter von Au , Fridolin Stary
IPC分类号： C08G77/08 , C08G77/16 , C08G77/22 , C08G77/32 , C08G77/34 , C08G77/36
CPC分类号： C08G77/16 , C08G77/34
摘要： A process for preparing diorganopolysiloxanes having terminal Si-bonded hydroxyl groups which comprises reacting an organosilicon compound selected from a cyclic diorganopolysiloxane, a diorganodichlorosilane hydrolysis product and mixtures thereof with from 0.1 to 3 percent by weight of a diorganodichlorosilane, based on the weight of the organosilicon compound, i.e., the cyclic diorganopolysiloxane and/or diorganodichlorosilane hydrolysis product employed, in the presence of from 1 to 50 ppm by weight of phosphonitrile chloride, based on the total weight of the organosilicon compound and diorganodichlorosilane employed, to form diorganopolysiloxanes containing an Si-bonded chlorine atom in each of the terminal units, then treating the reaction mixture with water or an aqueous solution, separating off the aqueous phase from the diorganopolysiloxanes containing an Si-bonded hydroxyl group in each of the terminal units and thereafter removing the low boiling constituents by distillation.
摘要翻译：一种制备具有末端Si键合的羟基的二有机聚硅氧烷的方法，其包括将选自环状二有机基聚硅氧烷，二有机二氯硅烷水解产物及其混合物的有机硅化合物与0.1至3重量％的二有机二氯硅烷基于有机硅的重量化合物，即所用的环状二有机基聚硅氧烷和/或二有机二氯硅烷水解产物，基于所用的有机硅化合物和二有机二氯硅烷的总重量，在1-50ppm重量的磷腈氯化物的存在下，形成含有Si- 在每个末端单元中连接氯原子，然后用水或水溶液处理反应混合物，从每个末端单元中含有与Si键合的羟基的二有机聚硅氧烷分离水相，然后除去低沸点组分通过蒸馏。

9. 发明申请

US20050051484A1 Process and apparatus for the technical fractionation of oligomers and polymers 审中-公开
$Process and apparatus for the technical fractionation of oligomers and polymers$
标题翻译：低聚物和聚合物的技术分级方法和设备
公开(公告)号：US20050051484A1
公开(公告)日：2005-03-10
申请号：US10897452
申请日：2004-07-23
申请人： Bernhard Wolf , John Eckelt , Tanja Haase , Stefan Loske
发明人： Bernhard Wolf , John Eckelt , Tanja Haase , Stefan Loske
IPC分类号： C08J3/00 , C08B3/22 , C08B31/08 , C08F6/04 , C08F6/12 , C08G77/36 , B01D11/00
CPC分类号： C08F6/04 , C08B3/22 , C08B31/08 , C08F6/12 , C08G77/36
摘要： Spinning process and apparatus for the technical fractionation of oligoners and polymers. Process for the fractionation of polymers, characterized in that a polymer solution (delivering-phase) is pressed through one or more spinning nozzles into an intensively agitated precipitation liquid (receiving-phase), wherein a two-phase mixture of a sol-phase and a gel-phase is formed, and the sol-phase and the gel-phase are separated from each other.
摘要翻译：用于技术分级的低聚物和聚合物的纺丝方法和设备。分离聚合物的方法，其特征在于将聚合物溶液（输送相）通过一个或多个纺丝喷嘴压入强烈搅拌的沉淀液（接收相）中，其中溶胶相和形成凝胶相，并将溶胶相和凝胶相彼此分离。

10. 发明授权

US5486564A High purity polyhydrogen silsesquioxane resin for electronic coatings 失效
标题翻译：用于电子涂料的高纯度聚氢倍半硅氧烷树脂
公开(公告)号：US5486564A
公开(公告)日：1996-01-23
申请号：US387697
申请日：1995-02-13
申请人： Katsutoshi Mine , Takashi Nakamura , Motoshi Sasaki
发明人： Katsutoshi Mine , Takashi Nakamura , Motoshi Sasaki
IPC分类号： C08G77/32 , C08G77/12 , C08G77/36 , C08L83/00
CPC分类号： C08G77/12 , C08G77/36
摘要： Disclosed is a highly reproducible method for the molecular weight fractionation of polyhydrogen silsesquioxane that gives a very storage-stable polyhydrogen silsesquioxane having a freely selectable molecular weight. The method involves dissolving polyhydrogen silsesquioxane in active-hydrogen-free nonpolar solvent; adding an active-hydrogen-free polar solvent to the resulting solution in order to precipitate polyhydrogen silsesquioxane; and collecting the desired molecular weight fraction of polyhydrogen silsesquioxane.
摘要翻译：公开了一种高度可重复的聚氢倍半硅氧烷分子量分级方法，其提供了具有可自由选择的分子量的非常储存稳定的聚氢倍半硅氧烷。该方法包括将聚氢倍半硅氧烷溶解在无活性氢的非极性溶剂中; 向所得溶液中加入无活性氢的极性溶剂，以沉淀聚氢倍半硅氧烷; 并收集所需的聚氢倍半硅氧烷的分子量分数。

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