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公开(公告)号：EP0507481A2
公开(公告)日：1992-10-07
申请号：EP92302472.3
申请日：1992-03-23
申请人： DOW CORNING S.A.
CPC分类号： C08J9/0066 , C08G77/02 , C08G77/12 , C08G77/16 , C08G77/20 , C08J2383/04 , C08L83/04 , C08L83/00 , C08L2666/54
摘要： A foamable silicone composition comprises a polysiloxane having silicon-bonded hydrogen atoms, a polysiloxane having siloxane units including unsaturated groups, a polysiloxane having silicon-bonded hydroxyl groups, a noble metal catalyst and from 3 to 40 parts by weight per 100 parts by weight of the composition of entities of borosilicate or silicate glass or mixtures thereof. The composition comprises first and second Parts A and B having viscosities which are sufficiently similar to each other to permit facile machine mixing of the Parts; the first Part comprises the noble metal catalyst and a portion of the entities and the second Part comprises the polysiloxane having silicon-bonded hydrogen atoms and a portion of the entities pretreated with a compatible silane or a polysiloxane having silicon-bonded hydrogen atoms. Preferred entities comprise hollow spherical particles or hollow entities which have an irregular configuration. Preferably the entities of the first Part of the composition have been treated with a compatible silane. Preferred compatible silanes are vinyl silanes. The compositions are suitable for producing rigid fire resistant foamed articles resistant to compression and deflection and may be used in the production of building elements.
摘要翻译： 可发泡硅氧烷组合物包含具有硅键合的氢原子的聚硅氧烷，具有包含不饱和基团的硅氧烷单元的聚硅氧烷，具有硅键合羟基的聚硅氧烷，贵金属催化剂和每100重量份的贵金属催化剂3至40重量份 硼硅酸盐或硅酸盐玻璃的实体的组成或其混合物。 组合物包含第一和第二部分A和B，其具有彼此足够相似的粘度以允许部件的容易的机器混合; 第一部分包括贵金属催化剂和一部分实体，第二部分包含具有硅键合氢原子的聚硅氧烷和用相容硅烷或具有硅键合氢原子的聚硅氧烷预处理的一部分实体。 优选的实体包括具有不规则构造的中空球形颗粒或中空实体。 优选地，组合物的第一部分的实体已经用相容的硅烷处理。 优选的相容硅烷是乙烯基硅烷。 该组合物适用于生产耐压缩和挠曲的刚性耐火发泡制品，并可用于生产建筑构件。
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公开(公告)号：EP0495566A3
公开(公告)日：1992-08-19
申请号：EP92300051.7
申请日：1992-01-03
申请人： DOW CORNING S.A.
CPC分类号： C08J9/02 , B29C44/60 , B29C2035/0855 , B29K2105/24 , B29K2995/0016 , C08J2383/04
摘要： The specification describes and claims a method of making silicone foam compositions comprising the steps of introducing into a moulding cavity a quantity of foamable silicone compositions which is curable at room, or slightly elevated, temperature and bring about curing in the cavity to produce a cured silicone foam. The moulding cavity is closed prior to foaming thereby restricting expansion of the foam. The volume of the closed moulding cavity is a minimum 10% less than that which would be occupied by the composition if it foamed and cured at room temperature without restriction. Lower density foams formed by the above procedure may be converted into rigid elastomeric low density materials by a heat or microwave post cure. For a given composition and foam density the fire resistance of a foam produced by a method according to the invention is greater than a foam which is allowed to foam freely.
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公开(公告)号：EP0495566B1
公开(公告)日：1995-08-02
申请号：EP92300051.7
申请日：1992-01-03
申请人： DOW CORNING S.A.
CPC分类号： C08J9/02 , B29C44/60 , B29C2035/0855 , B29K2105/24 , B29K2995/0016 , C08J2383/04
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公开(公告)号：EP0507481B1
公开(公告)日：1996-06-05
申请号：EP92302472.3
申请日：1992-03-23
申请人： DOW CORNING S.A.
CPC分类号： C08J9/0066 , C08G77/02 , C08G77/12 , C08G77/16 , C08G77/20 , C08J2383/04 , C08L83/04 , C08L83/00 , C08L2666/54
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公开(公告)号：EP0507481A3
公开(公告)日：1993-06-16
申请号：EP92302472.3
申请日：1992-03-23
申请人： DOW CORNING S.A.
CPC分类号： C08J9/0066 , C08G77/02 , C08G77/12 , C08G77/16 , C08G77/20 , C08J2383/04 , C08L83/04 , C08L83/00 , C08L2666/54
摘要： A foamable silicone composition comprises a polysiloxane having silicon-bonded hydrogen atoms, a polysiloxane having siloxane units including unsaturated groups, a polysiloxane having silicon-bonded hydroxyl groups, a noble metal catalyst and from 3 to 40 parts by weight per 100 parts by weight of the composition of entities of borosilicate or silicate glass or mixtures thereof. The composition comprises first and second Parts A and B having viscosities which are sufficiently similar to each other to permit facile machine mixing of the Parts; the first Part comprises the noble metal catalyst and a portion of the entities and the second Part comprises the polysiloxane having silicon-bonded hydrogen atoms and a portion of the entities pretreated with a compatible silane or a polysiloxane having silicon-bonded hydrogen atoms. Preferred entities comprise hollow spherical particles or hollow entities which have an irregular configuration. Preferably the entities of the first Part of the composition have been treated with a compatible silane. Preferred compatible silanes are vinyl silanes. The compositions are suitable for producing rigid fire resistant foamed articles resistant to compression and deflection and may be used in the production of building elements.
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6.发明公开
公开(公告)号：EP0522738A1
公开(公告)日：1993-01-13
申请号：EP92305742.6
申请日：1992-06-23
申请人： DOW CORNING S.A.
CPC分类号： C08K9/06 , C08G77/12 , C08G77/20 , C08G77/44 , C08G77/70 , C08L83/04 , C08L83/00 , C08L2666/54
摘要： Curable composition comprising (A) a polydiorganosiloxane having at least two ethylenically unsaturated groups per molecule, (B) an organohydrogensiloxane, (C) a catalyst for the addition of SiH groups to silicon-bonded unsaturated groups and (D) a particulate filler, the composition having in the cured elastomeric state a storage modulus of at least 0.5 x 10⁹ Pa. and tan delta of at least 0.15 at a temperature of -120°C.
The compositions are particularly adapted for use as interlayers in the production of laminated impact and fire resistant safety glass.摘要翻译： （A）每分子具有至少两个烯键式不饱和基团的聚二有机硅氧烷，（B）有机氢硅氧烷，（C）用于向硅键合的不饱和基团添加SiH基团的催化剂和（D）颗粒填料的可固化组合物， 组合物在固化的弹性体状态下的储能模量为至少0.5×10 9 Pa。在-120℃的温度下，tanδ为至少0.15。组合物特别适合用作生产中的夹层 层压冲击和防火安全玻璃。
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7.发明公开
公开(公告)号：EP0495566A2
公开(公告)日：1992-07-22
申请号：EP92300051.7
申请日：1992-01-03
申请人： DOW CORNING S.A.
CPC分类号： C08J9/02 , B29C44/60 , B29C2035/0855 , B29K2105/24 , B29K2995/0016 , C08J2383/04
摘要： The specification describes and claims a method of making silicone foam compositions comprising the steps of introducing into a moulding cavity a quantity of foamable silicone compositions which is curable at room, or slightly elevated, temperature and bring about curing in the cavity to produce a cured silicone foam. The moulding cavity is closed prior to foaming thereby restricting expansion of the foam. The volume of the closed moulding cavity is a minimum 10% less than that which would be occupied by the composition if it foamed and cured at room temperature without restriction. Lower density foams formed by the above procedure may be converted into rigid elastomeric low density materials by a heat or microwave post cure. For a given composition and foam density the fire resistance of a foam produced by a method according to the invention is greater than a foam which is allowed to foam freely.
摘要翻译： 本说明书描述并要求一种制造硅氧烷泡沫组合物的方法，其包括以下步骤：将一定量的可发泡聚硅氧烷组合物引入模制腔中，所述可发泡硅氧烷组合物在室温下可固化或稍微升高温度，并使空腔中的固化产生固化的硅氧烷 泡沫。 模制腔在发泡之前封闭，从而限制泡沫的膨胀。 封闭的模腔的体积比组合物占据的体积小至少10％，如果它在室温下发泡和固化而没有限制。 通过上述方法形成的较低密度泡沫体可以通过热或微波固化后转化成刚性弹性体低密度材料。 对于给定的组合物和泡沫密度，通过根据本发明的方法产生的泡沫的耐火性大于允许自由发泡的泡沫。
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