Storage stable heat curable organosiloxane compositions containing a
microencapsulated catalyst and method for preparing said catalyst
    1.
    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
    2.
    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。

    Film for packaging having oxygen barrier characteristics
    3.
    发明授权
    Film for packaging having oxygen barrier characteristics 失效
    具有阻氧特性的包装膜

    公开(公告)号:US5609555A

    公开(公告)日:1997-03-11

    申请号:US279457

    申请日:1994-07-22

    摘要: The present invention relates to the composition, preparation, and use of multi-layer composite films comprising a core layer of low gas permeable material, two intermediate layers sandwiching the core layer, and two outer layers sandwiching the two intermediate layers. The core layer provides the excellent oxygen barrier property, whereas the intermediate and outer layers protect the core layer so the oxygen permeability of the resulting multi-layer composite film becomes independent on relative humidity.

    摘要翻译: 本发明涉及包含低透气性材料芯层,夹着芯层的两层中间层和夹着两层中间层的两层外层的多层复合膜的组成,制备和使用。 核心层提供优异的氧气阻隔性能,而中间层和外层保护芯层,使得所得多层复合膜的氧气渗透性变得与相对湿度无关。

    Barrier film for packaging
    4.
    发明授权
    Barrier film for packaging 失效
    阻隔膜包装

    公开(公告)号:US5565048A

    公开(公告)日:1996-10-15

    申请号:US278783

    申请日:1994-07-22

    摘要: The present invention relates to the composition, preparation, and use of multi-layer composite films comprising a core layer of low gas permeable material, two intermediate layers sandwiching the core layer, and two outer layers sandwiching the two intermediate layers. The core layer provides the excellent oxygen barrier property, whereas the intermediate and outer layers protect the core layer so the oxygen permeability of the resulting multi-layer composite film becomes independent on relative humidity.

    摘要翻译: 本发明涉及包含低透气性材料芯层,夹着芯层的两层中间层和夹着两层中间层的两层外层的多层复合膜的组成,制备和使用。 核心层提供优异的氧气阻隔性能,而中间层和外层保护芯层,使得所得多层复合膜的氧气渗透性变得与相对湿度无关。

    Film for packaging having oxygen barrier characteristics
    5.
    发明授权
    Film for packaging having oxygen barrier characteristics 失效
    具有阻氧特性的包装膜

    公开(公告)号:US5494547A

    公开(公告)日:1996-02-27

    申请号:US201294

    申请日:1994-02-24

    摘要: The present invention relates to the composition, preparation, and use of multi-layer composite films comprising a core layer of low gas permeable material, two intermediate layers sandwiching the core layer, and two outer layers sandwiching the two intermediate layers. The core layer provides the excellent oxygen barrier property, whereas the intermediate and outer layers protect the core layer so the oxygen permeability of the resulting multi-layer composite film becomes independent on relative humidity.

    摘要翻译: 本发明涉及包含低透气性材料芯层,夹着芯层的两层中间层和夹着两层中间层的两层外层的多层复合膜的组成,制备和使用。 核心层提供优异的氧气阻隔性能,而中间层和外层保护芯层,使得所得多层复合膜的氧气渗透性变得与相对湿度无关。

    Method of producing an oxygen barrier coating containing trimethoxysilyl
functional pentadienoate
    6.
    发明授权
    Method of producing an oxygen barrier coating containing trimethoxysilyl functional pentadienoate 失效
    制备含有三甲氧基甲硅烷基官能戊二烯酸酯的氧阻隔涂层的方法

    公开(公告)号:US5348771A

    公开(公告)日:1994-09-20

    申请号:US155039

    申请日:1993-11-19

    摘要: A composite films which exhibit low oxygen transmission rates. The film comprises a silane resin coated on a plastic substrate then cured by ultraviolet radiation. For the silane coating, this invention relies on a class of organosilicon compounds derived from 1) organohydrogensilanes or organohydrogensiloxanes and 2) propargyl esters of carboxylic acids containing a terminal aromatic hydrocarbon radical, where the carbopropynoxy group of the ester and the aromatic hydrocarbon radical are separated by at least two adjacent ethylenically unsaturated carbon atoms. If more than two of these carbon atoms are present they form a sequence of conjugated ethylenic double bonds which allows the polymer to cross-link upon exposure to ultraviolet radiation.

    摘要翻译: 表现出低氧传输速率的复合膜。 该膜包括涂覆在塑料基板上的硅烷树脂,然后通过紫外线辐射固化。 对于硅烷涂层,本发明依赖于一类衍生自1)有机氢硅烷或有机氢硅氧烷的有机硅化合物和2)含有末端芳族烃基的羧酸炔丙基酯,其中酯和芳族烃基的碳丙氧基分离 通过至少两个相邻的烯键式不饱和碳原子。 如果存在这些碳原子中的两个以上,则它们形成共轭烯属双键的序列,这允许聚合物在暴露于紫外线辐射下交联。

    Benzosilacyclobutenes and methods of making
    9.
    发明授权
    Benzosilacyclobutenes and methods of making 失效
    苯并三环唑及其制备方法

    公开(公告)号:US5608094A

    公开(公告)日:1997-03-04

    申请号:US539008

    申请日:1995-10-04

    IPC分类号: C07F7/08

    CPC分类号: C07F7/0827 C07F7/0807

    摘要: 1,1-dimethyl-2,3-benzo-1-sila-2-cyclobutene was synthesized from 2-bromobenzyl bromide through a modified Grignard procedure, which resulted in a higher (41%) than literature reported yield (35%). An alternative approach with a much less costly 2-chlorobenzyl chloride as starting material is also disclosed. In addition, new di-benzosilacyclobutene compounds were synthesized with our modified Grignard procedure. The compounds are useful as coating materials for surfaces, and when applied to metallic surfaces, can be used neat.

    摘要翻译: 通过改进的格氏法从2-溴苄基溴合成1,1-二甲基-2,3-苯并-1-硅烷-2-环丁烯,结果比文献报道的产率(35%)高(41%)。 还公开了一种替代方法,其中使用成本较低的2-氯苄基氯作为起始原料。 此外,我们用修改后的Grignard方法合成了新的二苯并三环唑类化合物。 这些化合物可用作表面的涂层材料,并且当应用于金属表面时,可以整齐地使用。