Process for the preparation of diaryl carbonates
    21.
    发明授权
    Process for the preparation of diaryl carbonates 失效
    制备碳酸二芳基酯的方法

    公开(公告)号:US4533504A

    公开(公告)日:1985-08-06

    申请号:US338189

    申请日:1982-01-08

    IPC分类号: C07C68/04 C07C68/06

    摘要: Diaryl and substituted diaryl carbonates are formed by a series of steps, the first step involving the production of a dialkyl carbonate from an alkanol, carbon monoxide and oxygen; and the second step involving the reaction of the dialkyl carbonate with a phenyl ester or substituted phenyl ester in the presence of a dialkyl tin compound to produce a mixture of diaryl carbonate, alkyl aryl carbonate, and an alkyl ester. The alkyl ester can be heated to reform the alkanol and form ketene; in turn the ketene can be reacted with the phenol or substituted phenol to form the phenyl ester or substituted phenyl ester used in the second step above.

    摘要翻译: 二芳基和取代的碳酸二芳基酯通过一系列步骤形成,第一步涉及由烷醇,一氧化碳和氧气生产碳酸二烷基酯; 第二步是在二烷基锡化合物的存在下使碳酸二烷基酯与苯基酯或取代的苯基酯反应,生成碳酸二芳基酯,碳酸烷基芳基酯和烷基酯的混合物。 烷基酯可以加热以改性链烷醇​​并形成乙烯酮; 乙烯酮又可与苯酚或取代的苯酚反应形成上述第二步中使用的苯基酯或取代的苯基酯。

    Continuous method for making methyldimethoxysilane
    22.
    发明授权
    Continuous method for making methyldimethoxysilane 失效
    制备甲基二甲氧基硅烷的连续方法

    公开(公告)号:US4471133A

    公开(公告)日:1984-09-11

    申请号:US499589

    申请日:1983-05-31

    申请人: John E. Hallgren

    发明人: John E. Hallgren

    IPC分类号: C07F7/08 C07F7/18

    CPC分类号: C07F7/0896 C07F7/188

    摘要: A method is provided for making polymethoxyhydrosilane in a continuous manner by effecting contact between a polychlorohydrosilane and liquid methanol in a vertical reactor resulting in the production of hydrogen chloride which is allowed to separate on formation and a bottoms reaction product consisting essentially of polymethoxyhydrosilane which is thereafter distilled to effect the separation and recovery of the polymethoxyhydrosilane. Polymethoxyhydrosilane is used as an intermediate for the production of hybrid methoxysilanes, such as polymethoxyaminosilanes and polymethoxysilylenolethers useful as end-capping silanes for making noncorrosive RTV compositions.

    摘要翻译: 提供了一种通过在垂直反应器中进行聚氯代氢硅烷和液体甲醇之间的接触来连续制备聚甲氧基氢硅烷的方法,从而产生在形成时允许分离的氯化氢和基本上由聚甲氧基氢硅烷组成的底部反应产物 蒸馏以实现聚甲氧基氢硅烷的分离和回收。 聚甲氧基氢硅烷用作生产混合甲氧基硅烷的中间体,例如可用作制备非腐蚀性RTV组合物的封端硅烷的聚甲氧基氨基硅烷和聚甲氧基二甲苯基醚。

    Diaryl carbonate process
    23.
    发明授权
    Diaryl carbonate process 失效
    碳酸二芳酯工艺

    公开(公告)号:US4410464A

    公开(公告)日:1983-10-18

    申请号:US358493

    申请日:1982-03-15

    申请人: John E. Hallgren

    发明人: John E. Hallgren

    CPC分类号: C07C68/06

    摘要: Diphenyl carbonates are prepared by the reaction of phenol and a dialkyl carbonate in the presence of an effective amount of a suitable catalyst and a molecular sieve. The alkyl aryl carbonate produced in the first step of the reaction can be converted to the diaryl carbonate by further reaction with phenol, in the absence of molecular sieves.

    摘要翻译: 碳酸二苯酯通过苯酚和碳酸二烷基酯在有效量的合适的催化剂和分子筛的存在下反应制备。 在不存在分子筛的情况下,通过与苯酚进一步反应,可以在反应的第一步产生的碳酸烷基芳基酯转化为碳酸二芳基酯。

    Polyalkoxysilylenolethers
    24.
    发明授权
    Polyalkoxysilylenolethers 失效
    聚烷氧基二甲苯醚

    公开(公告)号:US4377706A

    公开(公告)日:1983-03-22

    申请号:US277525

    申请日:1981-06-26

    申请人: John E. Hallgren

    发明人: John E. Hallgren

    IPC分类号: C07F7/18 C07F7/04

    CPC分类号: C07F7/1824

    摘要: Polyalkoxysilylenolethers, for example, methyldimethoxyisopropenoxysilane, are provided and a method for making such silanes. The dialkoxysilylenolethers can be used as end-capping silanes for making noncorrosive RTV compositions.

    摘要翻译: 提供了聚烷氧基二甲苯基醚,例如甲基二甲氧基异丙氧基硅烷,以及制备这种硅烷的方法。 二烷氧基二甲苯基醚可用作制备非腐蚀性RTV组合物的封端硅烷。

    Decolorization of polycarbonate resins
    25.
    发明授权
    Decolorization of polycarbonate resins 失效
    聚碳酸酯树脂脱色

    公开(公告)号:US4377684A

    公开(公告)日:1983-03-22

    申请号:US346667

    申请日:1982-02-08

    IPC分类号: C08G64/40 C08G63/62

    CPC分类号: C08G64/406

    摘要: Polycarbonate resins which have been polymerized employing titanates as polymerizing agents generally have characteristic undesirable color. Removal of this color is accomplished by treatment of the polycarbonate resin with a quantity of an organic acid anhydride, optionally employing a smaller amount of a mineral acid, in addition for lower temperature decolorization.

    摘要翻译: 使用钛酸酯作为聚合剂聚合的聚碳酸酯树脂通常具有特殊的不希望的颜色。 通过用一定量的有机酸酐处理聚碳酸酯树脂,任选地使用较少量的无机酸,另外进行较低温度的脱色也可以除去这种颜色。

    Method for making cyclic carbonates and polymers therefrom
    26.
    发明授权
    Method for making cyclic carbonates and polymers therefrom 失效
    制备环状碳酸酯和聚合物的方法

    公开(公告)号:US4129574A

    公开(公告)日:1978-12-12

    申请号:US804938

    申请日:1977-06-09

    申请人: John E. Hallgren

    发明人: John E. Hallgren

    IPC分类号: C07D323/00 C08K5/159

    CPC分类号: C07D323/00 C08K5/04 C08K5/159

    摘要: A method is provided for making cyclic carbonates of 2,2-bis(4-hydroxyphenyl)-1,1-dichloroethylene, such as the cyclic trimer, by effecting the polymerization of the aforementioned bis(4-hydroxyphenyl)dichloroethylene to a linear polycarbonate, and then agitating a solution of the resulting polycarbonate in the presence of a tertiary organic amine. The cyclic carbonates made by the aforementioned process are useful as flame retardants in polycarbonates.

    摘要翻译: 通过上述双(4-羟基苯基)二氯乙烯聚合成直链聚碳酸酯,提供了制备2,2-双(4-羟基苯基)-1,1-二氯乙烯的环状碳酸酯,例如环状三聚体的方法 ,然后在叔有机胺的存在下搅拌所得聚碳酸酯的溶液。 通过上述方法制备的环状碳酸酯可用作聚碳酸酯中的阻燃剂。

    Bromine-bisphenol reacted bisphenol and novolak epoxy resins with
polyphenylene ether
    28.
    发明授权
    Bromine-bisphenol reacted bisphenol and novolak epoxy resins with polyphenylene ether 失效
    溴 - 双酚反应双酚和酚醛清漆环氧树脂与聚苯醚

    公开(公告)号:US5073605A

    公开(公告)日:1991-12-17

    申请号:US485401

    申请日:1990-02-26

    摘要: Upstaged compositions are prepared by the reaction in the presence of a triarylphosphine catalyst between at least one bisphenol polyglycidyl ether, at least one epoxidized novolak and at least one brominated bisphenol. They may be used for the preparation of resinous blends with polyphenylene ethers, which, in combination with further components, may be used in the preparation of laminates useful as printed circuit boards and having excellent physical and electrical properties.

    摘要翻译: 通过在三芳基膦催化剂存在下,在至少一种双酚多缩水甘油醚,至少一种环氧化酚醛清漆和至少一种溴化双酚之间的反应制备上述组合物。 它们可用于制备具有聚苯醚的树脂共混物,其与另外的组分组合可用于制备用作印刷电路板并具有优异的物理和电学性质的层压材料。

    Compositions comprising polyphenylene ethers, polyepoxides and aluminum
or zinc diketone salt
    30.
    发明授权
    Compositions comprising polyphenylene ethers, polyepoxides and aluminum or zinc diketone salt 失效
    包含聚苯醚,聚环氧化物和铝或锌二酮盐的组合物

    公开(公告)号:US4912172A

    公开(公告)日:1990-03-27

    申请号:US287604

    申请日:1988-12-22

    IPC分类号: C08G59/68 C08L63/00 C08L71/12

    摘要: Blends of high molecular weight polyphenylene ethers with various epoxy materials, particularly polyglycidyl ethers of bisphenolic compounds, are homogeneous at high temperatures and may be cured in the presence of a catalyst such as aluminum tris(acetylacetonate) or zinc bis(acetylacetonate), especially in the additional presence of an accelerator such as a basic nitrogen compound. The cured compositions have advantageous physical and electrical properties and are useful, for example, for the preparation of printed circuit boards.

    摘要翻译: 高分子量聚苯醚与各种环氧材料,特别是双酚化合物的多缩水甘油醚的共混物在高温下是均匀的,并且可以在催化剂如三(乙酰丙酮)铝或双(乙酰丙酮)锌的存在下固化,特别是在 另外存在加速剂如碱性氮化合物。 固化的组合物具有有利的物理和电学性质,并且例如用于制备印刷电路板是有用的。