Flowable adhesive
    1.
    发明授权
    Flowable adhesive 失效
    可流动粘合剂

    公开(公告)号:US5696210A

    公开(公告)日:1997-12-09

    申请号:US723461

    申请日:1996-10-09

    CPC分类号: C08F299/08 C09J183/04

    摘要: This invention pertains to an addition-curable silicone adhesive composition that is extrudable and flowable at room temperature in the absence of a solvent comprising (A) 40 to 95 parts of an alkenyl functional siloxane resin consisting essentially of R.sub.3 SiO.sub.1/2 siloxane units and SiO.sub.4/2 siloxane units, wherein R is a monovalent hydrocarbon radical having 1 to 6 carbon atoms; there being from 0.5 to 1.5 R.sub.3 SiO.sub.1/2 units for every SiO.sub.4/2 units; said resin containing 0.01 to 22 wt % alkenyl functionality; (B) 0.5 to 10 parts of an SiH containing polyorganosiloxane having an average of at least 2 silicon-bonded hydrogen atoms per molecule and having a viscosity of 0.8 to 2,000 mm.sup.2 /s; (C) a hydrosilylation catalyst in sufficient quantity to promote curing of said composition; (D) optionally, up to 70 parts of a polydiorganosiloxane having at least two ethylenically or acetylenically unsaturated groups per molecule and having a viscosity of 100 to 80,000 mm.sup.2 /s; and (E) optionally, an inhibitor in sufficient quantity for the composition to be stable at room temperature in the absence of oxygen and SiH reactive hydroxylated compounds.

    摘要翻译: 本发明涉及在不存在溶剂的情况下在室温下可挤出和流动的可加成固化的硅氧烷粘合剂组合物,其包含(A)40至95份基本上由R 3 SiO 1/2硅氧烷单元和SiO 4 / 2个硅氧烷单元,其中R是具有1至6个碳原子的一价烃基; 每个SiO 4/2单位为0.5〜1.5个R3SiO1 / 2单位; 所述树脂含有0.01至22重量%的链烯基官能团; (B)0.5〜10份含有SiH的聚有机硅氧烷,每分子平均具有至少2个与硅键合的氢原子,粘度为0.8〜2,000mm 2 / s; (C)足够量的氢化硅烷化催化剂以促进所述组合物的固化; (D)任选地,至多70份每分子具有至少两个烯属或炔属不饱和基团并且具有100至80,000mm 2 / s粘度的聚二有机硅氧烷; 和(E)任选地,足够量的抑制剂使组合物在室温下在不存在氧和SiH反应性羟基化合物的情况下是稳定的。

    Dual-cure flowable adhesive
    2.
    发明授权
    Dual-cure flowable adhesive 失效
    双重可固化流动粘合剂

    公开(公告)号:US5696209A

    公开(公告)日:1997-12-09

    申请号:US723460

    申请日:1996-10-09

    CPC分类号: C08F299/08 C09J183/04

    摘要: The invention pertains to an dual-cure silicone adhesive composition that is extrudable and flowable at room temperature in the absence of a solvent comprising (A) 40 to 95 parts of an alkenyl functional siloxane resin said resin containing 0.01 to 22 wt% alkenyl functionality; (B) 0.5 to 20 parts of a SiH containing polyorganosiloxane having an average of at least 1.7 silicon-bonded hydrogen atoms per molecule and having a viscosity of 0.8 to 2,000 mm.sup.2 /s; (C) a silane represented by monomers of the formula R.sup.1.sub.4-y Si(OR.sup.2).sub.y or oligomeric reaction products thereof; (D) a hydrosilylation catalyst in sufficient quantity to promote curing of said composition; (E) a moisture curing catalyst to promote the moisture initiated reaction of the alkoxy radicals; (F) optionally, 0.1 to 70 parts of a polydiorganosiloxane having at least two ethylenically or acetylenicaly unsaturated groups per molecule and having a viscosity of 100 to 80,000 mm.sup.2 /s; and (G) optionally, an inhibitor in sufficient quantity for the composition to be stable at room temperature; wherein at least one of said resin (A), SiH containing polyorganosiloxane (B) and/or optional polydiorganosiloxane (F) contain a curing radical of the formula --ZSiR.sup.1.sub.x (OR.sup.2).sub.3-x.

    摘要翻译: 本发明涉及在不存在溶剂的情况下在室温下可挤出和流动的双固化硅氧烷粘合剂组合物,其包含(A)40至95份烯基官能硅氧烷树脂,所述树脂含有0.01至22重量%的链烯基官能团; (B)0.5〜20份含有SiH的聚有机硅氧烷,每分子平均具有至少1.7个硅键合的氢原子,粘度为0.8〜2,000mm 2 / s; (C)由式R 14-y Si(OR 2)y的单体或其低聚反应产物表示的硅烷; (D)足够量的氢化硅烷化催化剂以促进所述组合物的固化; (E)湿固化催化剂以促进烷氧基的水分引发反应; (F)任选地,0.1-70份每分子具有至少两个烯属或炔属不饱和基团并且具有100至80,000mm 2 / s粘度的聚二有机硅氧烷; 和(G)任选地,足够量的抑制剂使组合物在室温下稳定; 其中所述树脂(A),含SiH的聚有机硅氧烷(B)和/或任选的聚二有机基硅氧烷(F)中的至少一种含有式-ZSiR1x(OR2)3-x的固化基团。

    Storage stable heat curable organosiloxane compositions containing a
microencapsulated catalyst and method for preparing said catalyst
    3.
    发明授权
    Storage stable heat curable organosiloxane compositions containing a microencapsulated catalyst and method for preparing said catalyst 失效
    含有微囊化催化剂的储存稳定的可热固化的有机硅氧烷组合物和制备所述催化剂的方法

    公开(公告)号:US5279898A

    公开(公告)日:1994-01-18

    申请号:US1607

    申请日:1993-01-07

    摘要: The present invention provides microencapsulated hydrosilylation catalysts for one-part heat curable organosiloxane compositions. Compositions containing these exhibit long-term storage stability yet cure rapidly when heated above the melting point of the encapsulating polymer. At least a portion of these microcapsules are less than one micron in diameter, and substantially all are less than about three microns in diameter. Compositions containing the preferred platinum group metals as catalysts are optically transparent.The microencapsulated curing catalysts of this invention are prepared by irradiating with UV light in the wavelength range of from 300 to 400 nanometers a solution containing (1) at least one of a specified group of photocrosslinkable organosiloxane compounds derived from propargyl esters of carboxylic acids containing a terminal aromatic hydrocarbon radical and at least two ethylenically unsaturated carbon atoms and (2) a liquid or solubilized hydrosilylation catalyst.

    摘要翻译: 本发明提供用于一部分可热固化的有机硅氧烷组合物的微囊化氢化硅烷化催化剂。 含有这些物质的组合物显示出长期的储存稳定性,当加热至高于包封聚合物的熔点时,其迅速固化。 这些微胶囊的至少一部分直径小于1微米,并且基本上全部直径小于约3微米。 含有优选的铂族金属作为催化剂的组合物是光学透明的。 本发明的微胶囊化固化催化剂是通过用波长范围为300-400纳米的紫外线照射制备的,该溶液含有(1)衍生自羧酸炔丙酯的特定组的可光致交联的有机硅氧烷化合物中的至少一种, 末端芳族烃基和至少两个烯属不饱和碳原子和(2)液体或溶解的氢化硅烷化催化剂。

    Storage stable heat curable organosiloxane compositions containing a
microencapsulated catalyst and method for preparing said catalyst
    4.
    发明授权
    Storage stable heat curable organosiloxane compositions containing a microencapsulated catalyst and method for preparing said catalyst 失效
    含有微囊化催化剂的储存稳定的可热固化的有机硅氧烷组合物和制备所述催化剂的方法

    公开(公告)号:US5077249A

    公开(公告)日:1991-12-31

    申请号:US672814

    申请日:1991-03-21

    摘要: The present invention provides microencapsulated liquid or solubilized curing catalysts for one-part heat curable organosiloxane compositions. Compositions containing these exhibit long-term storage stability yet cure rapidly when heated above the melting point of the encapsulating polymer. At least a portion of these microcapsules are less than one micron in diameter, and substantially all are less than about three microns in diameter. Compositions containing the preferred platinum group metals as catalysts are optically transparent.The microencapsulated curing catalysts of this invention are prepared by the photoinitiated polymerization of at least one solubilized hydroxyl-containing ethylenically unsaturated organic compound in the presence of a photoinitiator for the polymerization of said compound, an optional surfactant, and a liquid or solubilized curing catalyst for organosiloxane compositions. The curing agent is in the form of a coordination complex with an ethylenically or acetylenically unsaturated organic compound and the solvent for the polymerization reaction is a mono- or polyhydric alcohol.

    摘要翻译: 本发明提供用于一部分可热固化的有机硅氧烷组合物的微胶囊化液体或溶解的固化催化剂。 含有这些物质的组合物显示出长期的储存稳定性,当加热至高于包封聚合物的熔点时,其迅速固化。 这些微胶囊的至少一部分直径小于1微米,并且基本上全部直径小于约3微米。 含有优选的铂族金属作为催化剂的组合物是光学透明的。 本发明的微囊化固化催化剂是通过在光引发剂存在下使至少一种溶解的含羟基的烯键式不饱和有机化合物进行光引发聚合来制备的,所述光引发剂用于所述化合物,任选的表面活性剂和液体或溶解的固化催化剂 有机硅氧烷组合物。 固化剂是与烯属或炔属不饱和有机化合物的配位络合物的形式,聚合反应的溶剂是一元醇或多元醇。

    Method of producing elastomeric silicone foam
    5.
    发明授权
    Method of producing elastomeric silicone foam 失效
    生产弹性硅酮泡沫的方法

    公开(公告)号:US4593049A

    公开(公告)日:1986-06-03

    申请号:US787857

    申请日:1985-10-16

    CPC分类号: C08J9/02 C08J2383/04

    摘要: A method of producing elastomeric silicone foams from a two-part system is disclosed. The method mixes the ingredients then allows a froth to form and cure at ambient temperature to an elastomeric silicone foam. The method mixes a vinyl-containing polydiorganosiloxane (1), a hydroxylated polydiorganosiloxane (2), a platinum catalyst (3), an organohydrogensiloxane (4) and a profoamer (5). The profoamer is a resinous, benzene-soluble organosiloxane copolymer consisting essentially of SiO.sub.4/2 units, silicone bonded hydroxyl groups, (CH.sub.3).sub.3 SiO.sub.1/2 units, and fluorine-containing units. An embodiment of the method includes a liquified blowing agent and stores the mixture under superatmospheric pressure, forming a foam by releasing the mixture to atmospheric pressure. Another embodiment includes an alcohol in the mixture to provide a foam of lower density. When lauryl alcohol is used and the alcohol is mixed with (1), (3), and (5) before (2) is admixed, the foam has a Bashore resiliency of less than 20.

    摘要翻译: 公开了一种从两部分系统生产弹性硅酮泡沫的方法。 该方法混合成分,然后允许泡沫在环境温度下形成和固化成弹性硅酮泡沫。 该方法混合含乙烯基的聚二有机硅氧烷(1),羟基化聚二有机硅氧烷(2),铂催化剂(3),有机氢硅氧烷(4)和溶剂(5)。 溶剂是基于SiO 4/2单元,硅氧烷键合羟基,(CH3)3SiO1 / 2单元和含氟单元组成的树脂,可溶于苯的有机硅氧烷共聚物。 该方法的一个实施方案包括液化发泡剂并将混合物储存在超大气压下,通过将混合物释放到大气压来形成泡沫。 另一个实施方案包括混合物中的醇以提供较低密度的泡沫。 当使用月桂醇并将醇与(1),(3)和(5)混合在(2)之前混合时,泡沫的底部弹性小于20。

    Nonslumping, foamable polyorganosiloxane compositions containing
organosiloxane graft copolymers
    6.
    发明授权
    Nonslumping, foamable polyorganosiloxane compositions containing organosiloxane graft copolymers 失效
    含有机硅氧烷接枝共聚物的非共沸发泡聚有机硅氧烷组合物

    公开(公告)号:US4552901A

    公开(公告)日:1985-11-12

    申请号:US720768

    申请日:1985-04-08

    IPC分类号: C08J9/14

    CPC分类号: C08J9/14 C08J2383/04

    摘要: Moisture curable, foamable compositions that do not slump appreciably in the uncured state when applied on a vertical surface, consist essentially of an RTV elastomeric composition, from 10 to 50 weight percent of a liquified blowing agent and at least 12 weight percent finely divided filler. The RTV elastomeric composition comprises the product obtained by mixing at least two moisture curable polydiorganosiloxanes with an effective amount of a moisture reactive crosslinker. A graft copolymer derived from a liquid polydiorganosiloxane and an ethylenically unsaturated organic monomer constitutes from 5 to 80 weight percent of the polydiorganosiloxanes.

    摘要翻译: 当应用于垂直表面时,不会在未固化状态下明显塌陷的可湿固化的可发泡组合物基本上由RTV弹性体组合物,10至50重量%的液化发泡剂和至少12重量%的细碎填料组成。 RTV弹性体组合物包含通过将至少两种可湿气固化的聚二有机硅氧烷与有效量的水分反应性交联剂混合而获得的产物。 衍生自液体聚二有机硅氧烷和烯属不饱和有机单体的接枝共聚物占聚二有机硅氧烷的5-80重量%。

    Alkenyloxy silicon compositions
    10.
    发明授权
    Alkenyloxy silicon compositions 失效
    烯氧基硅组合物

    公开(公告)号:US4079037A

    公开(公告)日:1978-03-14

    申请号:US744905

    申请日:1976-11-26

    CPC分类号: C08G77/20 C08G77/045

    摘要: Organosilicon compositions comprising at least one silicon-bonded alkenyloxy radical, such as vinyldimethylcarbonoxy, are disclosed. These unsaturated organosilicon compositions are useful as partial or complete replacements for the analogous organosilicon compositions bearing the well-known silicon-bonded vinyl radical. In particular, vinyldimethylcarbinoxy-endblocked polydimethylsiloxane is useful as a component in an elastomeric composition which is cured with an organosilicon hydride.

    摘要翻译: 公开了包含至少一个硅键合的烯氧基的有机硅组合物,例如乙烯基二甲基羰氧基。 这些不饱和有机硅组合物可用作具有公知的硅键合的乙烯基的类似有机硅组合物的部分或完全替代物。 特别地,乙烯基二甲基咔啉基封端的聚二甲基硅氧烷可用作用有机硅化合物固化的弹性体组合物中的组分。