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    • 1. 发明申请
    • Method for preparing a silica suspension in a potentially crosslinkable silicone material
    • 在可交联的有机硅材料中制备二氧化硅悬浮液的方法
    • US20060258780A1
    • 2006-11-16
    • US10541161
    • 2003-12-19
    • Marc ChaussadeMartial DeruelleGerard MignaniLucile Gambut-Garel
    • Marc ChaussadeMartial DeruelleGerard MignaniLucile Gambut-Garel
    • C08K9/00B60C1/00
    • C08J3/20C08G77/045C08G77/12C08G77/16C08G77/20C08G77/24C08G77/70C08G77/80C08J2383/04C08L83/04C08L83/00C08L2666/54
    • The invention concerns a method for preparing a precipitated silica in a silicone oil, said suspension being useable for producing silicones crosslinkable by polyaddition, polycondensation or condensation by dehydrogenation (elastomers). The invention aims at solving the problem of finding a compromise between cost, rheology and mechanical properties of the final elastomers. Therefor, the invention provides a method for preparing a precipitated silica suspension treated with trimethylchlorosilane, in the presence of hexamethyldisiloxane, in a crosslinkable silicone oil. HCl can be used. Grafting of hydrophobic units on the silica and incorporation of the polyorganosiloxane silicone material are carried out during one single processing sequence, without passing through the powder form for the silica. Sodium silicate promoting MQ resin can be incorporated in the reaction medium. One of the characteristics of the inventive method is that it does not at all comprise a step involving dried hydrophobic silica. The invention also concerns the preparation of crosslinkable silicone elastomer composition from said suspension, and the resulting composition.
    • 本发明涉及一种在硅油中制备沉淀二氧化硅的方法,所述悬浮液可用于生产通过加氢,缩聚或通过脱氢缩合(弹性体)可交联的硅氧烷。 本发明旨在解决在成本,流变学和最终弹性体的机械性能之间找到妥协的问题。 因此,本发明提供了在六甲基二硅氧烷存在下,在可交联的硅油中制备用三甲基氯硅烷处理的沉淀二氧化硅悬浮液的方法。 可以使用HCl。 疏水单元在二氧化硅上的接枝和聚有机硅氧烷硅氧烷材料的引入在一个单一的处理顺序中进行,而不通过二氧化硅的粉末形式。 可以在反应介质中加入促进MQ树脂的硅酸钠。 本发明方法的一个特征是它完全不包括干燥疏水性二氧化硅的步骤。 本发明还涉及从所述悬浮液制备可交联硅氧烷弹性体组合物,以及所得组合物。
    • 8. 发明授权
    • Method for the production of polymethylvinylsiloxane resins with recycling of volatile oligoorganosiloxanes
    • 生产具有挥发性低聚有机硅氧烷再循环的聚甲基乙烯基硅氧烷树脂的方法
    • US07750077B2
    • 2010-07-06
    • US10544528
    • 2004-01-26
    • Lucile Gambut-GarelJosé-Louis Roca-OrtegaDidier DahlerGérard MignaniChristian Allandrieu
    • Lucile Gambut-GarelJosé-Louis Roca-OrtegaDidier DahlerGérard MignaniChristian Allandrieu
    • C08G77/06
    • C08G77/02C08G77/06C08G77/20
    • The invention relates to the field of silicon resins, particularly polymethylvinylsiloxane resins. The invention more specifically relates to a method for the production of polymethylvinylsiloxane resins comprising at least two different types of siloxy motifs R3SiO1/2 (motif M) and SiO4/2 (motif Q, optionally QOH), said method comprising the following steps: a) producing a siloxane resin comprising motifs Q by acidic hydrolysis of a siloxane resin precursor, preferably an alkaline silicate; b) functionalizing the siloxane resin obtained in step a) with halogenosilanes in the presence of an apolar solvent, the functionalizing generating sub-products including volatile oligosiloxanes (silox); c) recovering silox produced in step b) in a solution in the apolar solvent; and d) subjecting the resin functionalized in step b) to rearrangement with the aid of a strong base in order to eliminate the silanols, wherein at least a part of the silox produced during step b) and recovered in step c) is recycled.
    • 本发明涉及硅树脂,特别是聚甲基乙烯基硅氧烷树脂领域。 本发明更具体地涉及一种生产聚甲基乙烯基硅氧烷树脂的方法,其包含至少两种不同类型的甲硅烷氧基序列R3SiO1 / 2(基序M)和SiO4 / 2(基序Q,任选的QOH),所述方法包括以下步骤: )通过硅氧烷树脂前体,优选碱性硅酸盐的酸性水解产生包含图案Q的硅氧烷树脂; b)在非极性溶剂的存在下用卤代硅烷官能化步骤a)中获得的硅氧烷树脂,所述官能化产生的副产物包括挥发性低聚硅氧烷(silox); c)将在步骤b)中生产的silox回收到非极性溶剂中的溶液中; 和d)使步骤b)中官能化的树脂在强碱的帮助下进行重排,以消除硅烷醇,其中在步骤b)中产生并在步骤c)中回收的至少部分的Silox被再循环。
    • 10. 发明申请
    • Method for the production of polymethylvinylsiloxane resins wtih recycling of volatile oligoorganosiloxanes
    • 用于生产聚甲基乙烯基硅氧烷树脂的方法,其是挥发性低聚有机硅氧烷的再循环
    • US20060241266A1
    • 2006-10-26
    • US10544528
    • 2004-01-26
    • Lucile Gambut-GarelJosé-Louis Roca-OrtegaDidier DahlerGérard MignaniChristian Allandrieu
    • Lucile Gambut-GarelJosé-Louis Roca-OrtegaDidier DahlerGérard MignaniChristian Allandrieu
    • C08G77/00
    • C08G77/02C08G77/06C08G77/20
    • The invention relates to the field of silicon resins, particularly polymethylvinylsiloxane resins. The invention more specifically relates to a method for the production of polymethylvinylsiloxane resins comprising at least two different types of siloxy motifs R3SiO1/2 (motif M) and SiO4/2 (motif Q, optionally QOH), said method comprising the following steps: a) producing a siloxane resin comprising motifs Q by acidic hydrolysis of a siloxane resin precursor, preferably an alkaline silicate; b) functionalizing the siloxane resin obtained in step a) with halogenosilanes in the presence of an apolar solvent, the functionalizing generating sub-products including volatile oligosiloxanes (silox); c) recovering silox produced in step b) in a solution in the apolar solvent; and d) subjecting the resin functionalized in step b) to rearrangement with the aid of a strong base in order to eliminate the silanols, wherein at least a part of the silox produced during step b) and recovered in step c) is recycled.
    • 本发明涉及硅树脂,特别是聚甲基乙烯基硅氧烷树脂领域。 本发明更具体地涉及一种生产聚甲基乙烯基硅氧烷树脂的方法,其包含至少两种不同类型的甲硅烷氧基基团R 3 SiO 1/2(基元M)和SiO 2 所述方法包括以下步骤:a)通过酸性水解硅氧烷树脂前体制备包含图案Q的硅氧烷树脂, 优选碱性硅酸盐; b)在非极性溶剂的存在下用卤代硅烷官能化步骤a)中获得的硅氧烷树脂,所述官能化产生的副产物包括挥发性低聚硅氧烷(silox); c)将在步骤b)中生产的silox回收到非极性溶剂中的溶液中; 和d)使步骤b)中官能化的树脂在强碱的帮助下进行重排,以消除硅烷醇,其中在步骤b)中产生并在步骤c)中回收的至少部分的Silox被再循环。