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11. 发明公开

EP0955328A2 Vacuum dispensable silicone compositions 审中-公开
标题翻译： Vakuum verteilbare Siloxanzusammensetzungen
公开(公告)号：EP0955328A2
公开(公告)日：1999-11-10
申请号：EP99107425.3
申请日：1999-04-27
申请人： DOW CORNING CORPORATION
发明人： Dent, Stanton James , Norris, Ann Walstrom , Benson, Edward Joseph , Lee, Yeong Joo
IPC分类号： C08G77/32 , C08L83/07
CPC分类号： C08L83/04 , C08G77/12 , C08G77/20 , C08G77/32 , C08L83/00 , C08L2666/54
摘要： A vacuum dispensable silicone composition comprising (A) a polydiorganosiloxane containing an average of at least two silicon-bonded alkenyl groups per molecule; (B) an organopolysiloxane resin essentially consisting of (a) R 3 2 (CH 2 =CH)SiO 1/2 siloxane units, (b) R 3 3 SiO 1/2 siloxane units, and (c) SiO 4/2 siloxane units wherein each R 3 is independently selected from monovalent hydrocarbon or monovalent halogenated hydrocarbon groups free of aliphatic unsaturation, the mole ratio of the combination of (a) and (b) units to (c) units is from 0.6 to 1.1 and the resin contains 1 to 5 percent by weight of vinyl groups; (C) an organohydrogenpolysiloxane having an average of at least three silicon-bonded hydrogen atoms per molecule in an amount sufficient to provide from one to three silicon-bonded hydrogen atoms per alkenyl group in components (A) and (B) combined; (D) an adhesion promoter in an amount sufficient to effect adhesion of the composition to a substrate; (E) a hydrosilylation catalyst; (F) a platinum catalyst inhibitor having a boiling point greater than 150°C. at 0.10 MPa in an amount sufficient to retard curing of the composition at ambient temperature; wherein the composition is substantially free of air.
摘要翻译：一种真空可分配硅氧烷组合物，其包含（A）每分子含有平均至少两个硅键合的烯基的聚二有机硅氧烷; （B）基本上由（a）R 3（CH 2 = CH）SiO 1/2硅氧烷单元，（b）R 3 SiO 2/2硅氧烷单元和（c）SiO 4/2硅氧烷单元组成的有机聚硅氧烷树脂其中每个R 3独立地选自不含脂族不饱和度的一价烃或一价卤代烃基，（a）和（b）单元与（c）单元的组合的摩尔比为0.6-1.1，树脂含有1〜5重量％的乙烯基; （C）每分子平均具有至少三个与硅键合的氢原子的有机氢聚硅氧烷，其量足以在组分（A）和（B）中每个烯基上提供一至三个与硅键合的氢原子; （D）粘合促进剂，其量足以使组合物粘附到基底上; （E）氢化硅烷化催化剂; （F）在0.10MPa下沸点大于150℃的铂催化剂抑制剂，其量足以阻止组合物在环境温度下固化; 其中所述组合物基本上不含空气。

12. 发明公开

EP0924238A1 Neutralization method for polyorganosiloxanes 有权
标题翻译：一种聚有机硅氧烷的中和过程
公开(公告)号：EP0924238A1
公开(公告)日：1999-06-23
申请号：EP98309905.2
申请日：1998-12-03
申请人： DOW CORNING CORPORATION
发明人： Graiver, Daniel , Tselepis, Arthur James
IPC分类号： C08G77/32
CPC分类号： C08G77/32
摘要： A method for neutralizing a polyorganosiloxane mixture. The method comprises (A) contacting a mixture comprising a polyorganosiloxane and a base with a neutralizing amount of a solid organic acid at a temperature above the melting point of the solid organic acid forming a molten organic acid and an insoluble adduct of the base with the molten organic acid, (B) lowering the temperature to solidify residual molten organic acid, and (C) then separating the insoluble adduct and the residual solid organic acid from the polyorganosiloxane mixture. The present invention is especially useful for neutralizing polyorganosiloxane mixtures where the polyorganosiloxane comprises hydrocarbyl groups bonded to silicon.

13. 发明公开

EP0742263A3 Silyl phosphate as stabilizing agent for polydiorganosiloxanes 有权
标题翻译：甲硅烷基磷酸盐作为稳定剂的聚二
公开(公告)号：EP0742263A3
公开(公告)日：1997-08-13
申请号：EP96302848.5
申请日：1996-04-23
申请人： DOW CORNING CORPORATION
发明人： Graiver, Daniel , Hough, Eric John , Lomas, Arnold Wade
IPC分类号： C08K5/54 , C08L83/04
CPC分类号： C08G77/32 , C07F9/409 , C08K5/5419 , C08L83/04
摘要： A method for stabilizing a mixture comprising polydiorganosiloxane and an alkali metal or alkaline earth metal. The method comprises contacting a silyl phosphonate described by formula R 1 a (OH) b (OSiR 2 3 ) 3-a-b P=O, where each R 1 and R 2 is an independently selected hydrocarbyl radical comprising less than about twelve carbon atoms, a=1 or 2, b=0 or 1 and a+b=1 or 2, with a polydiorganosiloxane and an alkali metal or alkaline earth metal.

14. 发明授权

EP0450536B1 Silicone rubber composition and method for the production of silicone rubber moldings 失效
标题翻译：硅橡胶组合物和方法生产的硅橡胶模制品的。
公开(公告)号：EP0450536B1
公开(公告)日：1995-03-01
申请号：EP91105087.0
申请日：1991-03-28
申请人： Dow Corning Toray Silicone Company, Limited
发明人： Ushio, Yoshito , Nakamura, Akito
IPC分类号： C08L83/04 , C08G77/32 , C08K5/54
CPC分类号： C08K5/5415 , C08G77/045 , C08G77/32 , C08L83/04 , C08L83/00

15. 发明授权

EP0299640B1 Silicone polymer termination 失效
标题翻译：硅胶聚合物终止
公开(公告)号：EP0299640B1
公开(公告)日：1993-03-03
申请号：EP88305816.6
申请日：1988-06-27
申请人： DOW CORNING CORPORATION
发明人： Gvozdic, Nedeljko Vladimir , Hilty, Terrence Keith , Saam, John Carlton
IPC分类号： C08G77/06 , C08G77/32 , C08G77/38
CPC分类号： C08G77/32 , C08G77/06

16. 发明授权

EP0292407B1 Procédé de préparation de polydiorganosiloxane à extrémités silanol 失效
标题翻译：用硅烷末端制备聚异氰酸酯的方法
公开(公告)号：EP0292407B1
公开(公告)日：1991-07-31
申请号：EP88420115.3
申请日：1988-04-07
申请人： RHONE-POULENC CHIMIE
发明人： Billet, Lucien , Lebrun, Jean-Jacques
IPC分类号： C08G77/32 , C08G77/16 , C08G77/08
CPC分类号： C08G77/08 , C08G77/16 , C08G77/32

17. 发明公开

EP0314315A2 Preparation of hydroxy terminated polysiloxanes 失效
标题翻译： Verfahren zur Herstellung von Polysiloxanen mitendständigenHydroxylgruppen。
公开(公告)号：EP0314315A2
公开(公告)日：1989-05-03
申请号：EP88309188.6
申请日：1988-10-03
申请人： DOW CORNING S.A.
发明人： Trego, Brian Robert
IPC分类号： C08G77/16 , C08G77/32
CPC分类号： C08G77/08 , C08G77/16 , C08G77/32
摘要： The specification discloses a method of preparing a polysiloxane by chain extension of a silicon compound having chain terminating units including a silicon-bonded hydroxyl group which comprises bringing about condensation of the silicon-bonded hydroxyl groups at a temperature of less than 50°C in presence of an acidic condensation catalyst of the formula RSO₃H and water, to an extent of less than 7 moles per mole of acidic condensation catalyst. The silicon compound may comprise a hydroxyl end-blocked polydimethylsiloxane having a viscosity at 25°C in the range 30 to 100,000 mm²/s, and it may be polymerised to provide an α,ω dihydroxy polydimethylsiloxane having a viscosity in the range 1,000 mm²/s to 100,000 mm²/s or more. Preferred acidic condensation catalysts are those in which R is an alkyl group having a chain of 6 to 18 carbon atoms or a group R˝C₆H₄ where R˝ represents a hydrogen atom or an alkyl group having a chain of 6 to 18 carbon atoms. The preferred catalyst is dodecylbenzenesulphonic acid. A basic material may be added to the reaction mixture to neutralise said catalyst for example calcium carbonate or magnesium carbonate. The reaction mixture may be compounded to provide a curable composition, for example a moisture curable sealant composition comprising a mixture and/or a reaction product of the polysiloxane and a curative, a catalyst and finely divided filler.
摘要翻译：本说明书公开了一种通过具有包含硅键合羟基的链终止单元的硅化合物的链延长制备聚硅氧烷的方法，该方法包括在低于50℃的温度存在下使硅键合羟基的缩合的式RSO 3 H的酸性缩合催化剂和水，每摩尔酸性缩合催化剂的量小于7摩尔。硅化合物可以包含25℃下粘度在30-100,000mm 2 / s范围内的羟基封端的聚二甲基硅氧烷，并且可以将其聚合以提供粘度在该范围内的α，ω-二羟基聚二甲基硅氧烷 1,000mm 2 / s至100,000mm 2 / s以上。优选的酸性缩合催化剂是其中R为具有6至18个碳原子的烷基的基团或R sec C6H 4基团，其中R sec表示氢原子或具有6至18个碳原子的链的烷基。优选的催化剂是十二烷基苯磺酸。可以向反应混合物中加入碱性物质以中和所述催化剂，例如碳酸钙或碳酸镁。可以将反应混合物配混以提供可固化组合物，例如包含聚硅氧烷和固化剂，催化剂和细碎填料的混合物和/或反应产物的可湿气固化的密封剂组合物。

18. 发明公开

EP0299634A2 Silicone polymer termination 失效
标题翻译：有机硅聚合物终止
公开(公告)号：EP0299634A2
公开(公告)日：1989-01-18
申请号：EP88305750.7
申请日：1988-06-24
申请人： DOW CORNING CORPORATION
发明人： Gvozdic, Nedeljko Vladimir
IPC分类号： C08G77/06 , C08G77/32 , C08G77/38
CPC分类号： C08G77/32 , C08G77/06
摘要： Polydiorganosiloxane gum, of the type produced by the alkaline metal catalyzed polymerization of organocyclosiloxanes can be produced without hydroxyl content by mixing the gum with an acid or acid producing phosphoric component and a trialkylsilylacetamide component, allowing the mixture to react until the hydroxyl groups are eliminated, then devolatilizing the gum. The hydroxyl content can be removed without causing any significant change in the molecular weight of the gum and producing a gum which is heat stable at temperatures such as 250°C. without the addition of heat stabilizers.
摘要翻译：由有机环硅氧烷的碱金属催化聚合生产的类型的聚二有机硅氧烷胶可以通过将胶与酸或酸产生磷酸组分和三烷基甲硅烷基乙酰胺组分混合，使羟基基团消除直至羟基被消除而无羟基含量地生产，然后使口香糖脱挥。可以除去羟基含量而不引起口香糖分子量的任何显着变化，并产生在例如250℃的温度下热稳定的口香糖。没有加入热稳定剂。

19. 发明公开

EP0218184A1 Verfahren zum Stabilisieren von Organopolysiloxanen 失效
标题翻译：一种用于稳定有机聚硅氧烷处理。
公开(公告)号：EP0218184A1
公开(公告)日：1987-04-15
申请号：EP86113512.7
申请日：1986-10-01
申请人： Wacker-Chemie GmbH
发明人： Jira, Reinhard, Dr.Dipl.-Chem. , Ottlinger, Ralph, Dr. Dipl.-Chem.
IPC分类号： C08G77/32 , C08L83/04
CPC分类号： C08G77/32 , C08K5/109 , C08L83/04
摘要： In Organopolysiloxanen,die vor dem Stabilisieren Alkalimetallhydroxyd, Alkalimetallsilanolat, Alkalimetallsiloxanolat oder ein Gemisch aus mindestens zwei derartiger Verbindungen enthalten, wird durch Vermischen von aus Kohlenstoff-, Wasserstoff- und Sauerstoffatomen sowie gegebenenfalls mindestens einem Halogenatom aufgebaute Verbindung, in der 2, 3 oder 4 Kohlenwasserstoffgruppen an das gleiche Kohlenstoffatom jeweils über Sauerstoff gebunden sind, wie Dimethylcarbonat, oder mit Acylessigsäureester, wie Acetessigsäureethylester, alkalische Verbindung der oben angegebenen Art neutralisiert. Dadurch werden die Organopolysiloxane gegenüber durch alkalische Verbindungen bewirkte Viskositätsänderungen stabilisiert.
摘要翻译：在有机聚硅氧烷，其含有由在2，3或4的烃基被至少一个卤原子建立的连接的碳，氢原子和氧原子的混合以及任选的制备前的稳定化的碱金属氢氧化物，碱金属硅烷醇化物，Alkalimetallsiloxanolat或至少两种这类化合物的混合物，经由氧连接到相同的碳原子在每种情况下，如碳酸二甲酯，或与作为acylacetates中和乙酰乙酸乙酯，上述类型的碱性化合物。因此，有机基聚硅氧烷是稳定的抗由碱性化合物的粘度的变化。

20. 发明公开

EP3390568A1 SILICONE PRESSURE-SENSITIVE ADHESIVE COMPOSITION 有权
公开(公告)号：EP3390568A1
公开(公告)日：2018-10-24
申请号：EP16876442.1
申请日：2016-12-12
申请人： Dow Silicones Corporation
发明人： JANG, Wonbum , JO, Gunn , KIM, Bokyung
IPC分类号： C09J183/04 , C09J5/00
CPC分类号： C09J183/04 , C08G77/04 , C08G77/12 , C08G77/20 , C08G77/32 , C08G2170/40 , C08K5/14 , C08K5/56 , C08L83/00 , C09J7/38
摘要： A silicone pressure-sensitive adhesive composition is curable by an addition reaction, condensation reaction, or a radical reaction with the use of an organic peroxide, and is characterized by comprising an azeotropic solvent such as a mixture of an aromatic solvent, and an aliphatic alcohol or an aliphatic ester. Although the silicone pressure-sensitive adhesive composition can be cured by heating at relatively low temperatures, the residual solvent in a silicone pressure-sensitive adhesive can be reduced.

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